http://solar.gmu.edu/heliophysics/api.php?action=feedcontributions&feedformat=atom&user=Bvrsnak 2026-08-04T05:44:39Z User contributions MediaWiki 1.31.0 http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1024 2013-06-01T08:14:56Z

<p>Bvrsnak: /* Results of the Workshop and Future Plans */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, SEPs, etc.)<br /> <br /> * Together with WG3, WG2 should provide a &quot;theoretical-background service&quot; to WG1 and WG2<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> 2.1.6 How to measure the real mass of ICMEs?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock forms and evolves in the decreasing Alfven-velocity environment?<br /> <br /> 2.2.5 How ambient solar wind exchanges momentum, energy and magnetic flux with ICMEs?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geomagnetic-activity forecasting?<br /> <br /> 2.3.5 What processes determine the ICME Forbush-decrease effectiveness?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> 2.4.5 How SEPs are accelerated by shocks and how they transport in heliosphere?<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans/Collaborations'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1023 2013-06-01T08:14:18Z

<p>Bvrsnak: /* What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting? */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, SEPs, etc.)<br /> <br /> * Together with WG3, WG2 should provide a &quot;theoretical-background service&quot; to WG1 and WG2<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> 2.1.6 How to measure the real mass of ICMEs?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock forms and evolves in the decreasing Alfven-velocity environment?<br /> <br /> 2.2.5 How ambient solar wind exchanges momentum, energy and magnetic flux with ICMEs?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geomagnetic-activity forecasting?<br /> <br /> 2.3.5 What processes determine the ICME Forbush-decrease effectiveness?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> 2.4.5 How SEPs are accelerated by shocks and how they transport in heliosphere?<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1022 2013-06-01T08:11:37Z

<p>Bvrsnak: /* Objectives */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, SEPs, etc.)<br /> <br /> * Together with WG3, WG2 should provide a &quot;theoretical-background service&quot; to WG1 and WG2<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> 2.1.6 How to measure the real mass of ICMEs?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock forms and evolves in the decreasing Alfven-velocity environment?<br /> <br /> 2.2.5 How ambient solar wind exchanges momentum, energy and magnetic flux with ICMEs?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> 2.4.5 How SEPs are accelerated by shocks and how they transport in heliosphere?<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1021 2013-06-01T08:09:13Z

<p>Bvrsnak: /* Which mechanisms, processes, forces are governing the CME take-off and ICME propagation? */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> =='''Scientific Questions'''==<br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> 2.1.6 How to measure the real mass of ICMEs?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock forms and evolves in the decreasing Alfven-velocity environment?<br /> <br /> 2.2.5 How ambient solar wind exchanges momentum, energy and magnetic flux with ICMEs?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> 2.4.5 How SEPs are accelerated by shocks and how they transport in heliosphere?<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1020 2013-06-01T08:06:53Z

<p>Bvrsnak: /* The CME-associated phenomena */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> =='''Scientific Questions'''==<br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock forms and evolves in the decreasing Alfven-velocity environment?<br /> <br /> 2.2.5 How ambient solar wind exchanges momentum, energy and magnetic flux with ICMEs?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> 2.4.5 How SEPs are accelerated by shocks and how they transport in heliosphere?<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1019 2013-06-01T08:04:55Z

<p>Bvrsnak: /* How much variable ambient conditions affect ICMEs? */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> =='''Scientific Questions'''==<br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock forms and evolves in the decreasing Alfven-velocity environment?<br /> <br /> 2.2.5 How ambient solar wind exchanges momentum, energy and magnetic flux with ICMEs?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1010 2013-05-30T10:05:30Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> =='''Scientific Questions'''==<br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1009 2013-05-30T10:04:53Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1008 2013-05-30T10:03:07Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> '''2.'''<br /> =='''Scientific Questions'''==<br /> <br /> ----<br /> <br /> '''2.1'''<br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> '''2.2'''<br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> '''2.3'''<br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> '''2.4'''<br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> '''3.'''<br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1007 2013-05-30T10:00:29Z

<p>Bvrsnak: /* What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting? */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> 2.4<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1006 2013-05-30T09:58:51Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1005 2013-05-30T09:58:35Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> ----<br /> <br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1004 2013-05-30T09:58:18Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> ----<br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> * Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> * Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> * CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1003 2013-05-30T09:57:41Z

<p>Bvrsnak: /* Objectives */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> =='''Objectives'''==<br /> * Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> - Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> - Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> - CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1002 2013-05-30T09:57:25Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> =='''Objectives'''==<br /> - Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> <br /> - Heliospheric dynamics of ICMEs and evolution of their structure<br /> <br /> - Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> <br /> - CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1001 2013-05-30T09:56:09Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> =='''Objectives'''==<br /> ===Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)===<br /> ===Heliospheric dynamics of ICMEs and evolution of their structure===<br /> ===Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects===<br /> ===CME/ICME-associated phenomena (flares, shocks, etc.)===<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=1000 2013-05-30T09:54:31Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=999 2013-05-30T09:54:10Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> ----<br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=998 2013-05-30T09:52:36Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> ----<br /> ----<br /> == ==<br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=997 2013-05-30T09:52:10Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> ----<br /> == ==<br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=996 2013-05-30T09:51:40Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> ----<br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=995 2013-05-30T09:51:07Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=994 2013-05-30T09:50:44Z

<p>Bvrsnak: </p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> <br /> <br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=993 2013-05-30T09:48:39Z

<p>Bvrsnak: /* Objectives */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> <br /> <br /> <br /> '''1.'''<br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=992 2013-05-30T09:48:00Z

<p>Bvrsnak: /* Objectives */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> <br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=991 2013-05-30T09:47:46Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> <br /> <br /> <br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=990 2013-05-30T09:47:21Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> <br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=989 2013-05-30T09:46:52Z

<p>Bvrsnak: /* Objectives */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=988 2013-05-30T09:46:30Z

<p>Bvrsnak: /* The CME-associated phenomena */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 What are the mechanisms of initiation and what is the nature of CME-driven coronal waves and shocks?<br /> <br /> 2.4.2 What is the role of flares in the initiation and acceleration of CMEs?<br /> <br /> 2.4.3 What can we learn from coronal dimmings?<br /> <br /> 2.4.4 How the associated phenomena (flares, waves, dimmings) can help in the space-weather forecasting? <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=987 2013-05-30T09:41:39Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ===''The CME-associated phenomena''===<br /> <br /> 2.4.1 <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=986 2013-05-30T09:38:49Z

<p>Bvrsnak: /* What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting? */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters?<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting?<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=985 2013-05-30T09:37:56Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 What are the key model-input parameters<br /> <br /> 2.3.4 What can be done regarding the geoeffectiveness forecasting<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=984 2013-05-30T09:32:53Z

<p>Bvrsnak: /* What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting? */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2 How well models reproduce heliospheric kinematics of ICMEs?<br /> <br /> 2.3.3 <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=983 2013-05-30T09:31:06Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> <br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> <br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> <br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> <br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> <br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> <br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> 2.3.2<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=982 2013-05-30T09:30:14Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> <br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> 2.3.2<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=981 2013-05-30T09:29:05Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> 2.3.2<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=980 2013-05-30T09:28:21Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> 2.3.2<br /> <br /> ----<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=979 2013-05-30T09:27:19Z

<p>Bvrsnak: /* Objectives */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> <br /> ----<br /> <br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=978 2013-05-30T09:26:47Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> =='''Scientific Questions'''==<br /> <br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> <br /> ----<br /> <br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=977 2013-05-30T09:26:13Z

<p>Bvrsnak: /* Results of the Workshop and Future Plans */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> =='''Scientific Questions'''==<br /> ----<br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> <br /> ----<br /> <br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=976 2013-05-30T09:25:41Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> =='''Scientific Questions'''==<br /> ----<br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?<br /> <br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=975 2013-05-30T09:25:08Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> =='''Scientific Questions'''==<br /> ----<br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> 2.1.2 What is the role of emerging flux and poloidal-flux injection?<br /> 2.1.3 How long the Lorentz force dominates over the aerodynamic drag<br /> 2.1.4 How the inductive effects affect the CME eruption and ICME propagation?<br /> 2.1.5 What is the role of the ICME/ambient-field reconnection?<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> 2.2.1 Which processes are involved in ICME-ICME interactions?<br /> 2.2.2 How ICME-ICME interactions affect the dynamics and structure of ICMEs?<br /> 2.2.3 How high-speed solar wind streams (corotating interacting regions) affect ICMEs?<br /> 2.2.4 How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> 2.3.1 What are forecasting-performances of various empirical, analytical, and numerical models?====<br /> <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=974 2013-05-30T09:23:01Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> =='''Scientific Questions'''==<br /> ----<br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> 2.1.1 What is the role of the flare-associated reconnection?<br /> ==== - What is the role of emerging flux and poloidal-flux injection?====<br /> ==== - How long the Lorentz force dominates over the aerodynamic drag====<br /> ==== - How the inductive effects affect the CME eruption and ICME propagation?====<br /> ==== - What is the role of the ICME/ambient-field reconnection?====<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> ==== - Which processes are involved in ICME-ICME interactions?====<br /> ==== - How ICME-ICME interactions affect the dynamics and structure of ICMEs?====<br /> ==== - How high-speed solar wind streams (corotating interacting regions) affect ICMEs?====<br /> ==== - How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?====<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> ==== - What are forecasting-performances of various empirical, analytical, and numerical models?====<br /> <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=973 2013-05-30T09:22:19Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> =='''Scientific Questions'''==<br /> ----<br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> ==== - What is the role of the flare-associated reconnection?====<br /> ==== - What is the role of emerging flux and poloidal-flux injection?====<br /> ==== - How long the Lorentz force dominates over the aerodynamic drag====<br /> ==== - How the inductive effects affect the CME eruption and ICME propagation?====<br /> ==== - What is the role of the ICME/ambient-field reconnection?====<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> ==== - Which processes are involved in ICME-ICME interactions?====<br /> ==== - How ICME-ICME interactions affect the dynamics and structure of ICMEs?====<br /> ==== - How high-speed solar wind streams (corotating interacting regions) affect ICMEs?====<br /> ==== - How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?====<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> ==== - What are forecasting-performances of various empirical, analytical, and numerical models?====<br /> <br /> <br /> ----<br /> <br /> ----<br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=972 2013-05-30T09:21:49Z

<p>Bvrsnak: /* Future Plan */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> =='''Scientific Questions'''==<br /> <br /> ----<br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> ==== - What is the role of the flare-associated reconnection?====<br /> ==== - What is the role of emerging flux and poloidal-flux injection?====<br /> ==== - How long the Lorentz force dominates over the aerodynamic drag====<br /> ==== - How the inductive effects affect the CME eruption and ICME propagation?====<br /> ==== - What is the role of the ICME/ambient-field reconnection?====<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> ==== - Which processes are involved in ICME-ICME interactions?====<br /> ==== - How ICME-ICME interactions affect the dynamics and structure of ICMEs?====<br /> ==== - How high-speed solar wind streams (corotating interacting regions) affect ICMEs?====<br /> ==== - How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?====<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> ==== - What are forecasting-performances of various empirical, analytical, and numerical models?====<br /> <br /> <br /> ----<br /> <br /> ----<br /> <br /> <br /> =='''Results of the Workshop and Future Plans'''==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=971 2013-05-30T09:15:31Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> =='''Scientific Questions'''==<br /> <br /> ----<br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> ==== - What is the role of the flare-associated reconnection?====<br /> ==== - What is the role of emerging flux and poloidal-flux injection?====<br /> ==== - How long the Lorentz force dominates over the aerodynamic drag====<br /> ==== - How the inductive effects affect the CME eruption and ICME propagation?====<br /> ==== - What is the role of the ICME/ambient-field reconnection?====<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> ==== - Which processes are involved in ICME-ICME interactions?====<br /> ==== - How ICME-ICME interactions affect the dynamics and structure of ICMEs?====<br /> ==== - How high-speed solar wind streams (corotating interacting regions) affect ICMEs?====<br /> ==== - How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?====<br /> <br /> ----<br /> <br /> ===''What is the state of the art in the ICME-arrival and ICME-geoeffectiveness forecasting?''===<br /> ==== - What are forecasting-performances of various empirical, analytical, and numerical models?====<br /> <br /> ==Future Plan==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=970 2013-05-30T09:13:21Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> =='''Scientific Questions'''==<br /> <br /> ----<br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> ==== - What is the role of the flare-associated reconnection?====<br /> ==== - What is the role of emerging flux and poloidal-flux injection?====<br /> ==== - How long the Lorentz force dominates over the aerodynamic drag====<br /> ==== - How the inductive effects affect the CME eruption and ICME propagation?====<br /> ==== - What is the role of the ICME/ambient-field reconnection?====<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> ==== - Which processes are involved in ICME-ICME interactions?====<br /> ==== - How ICME-ICME interactions affect the dynamics and structure of ICMEs?====<br /> ==== - How high-speed solar wind streams (corotating interacting regions) affect ICMEs?====<br /> ==== - How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?====<br /> <br /> ----<br /> <br /> ===What is the state of the art in the ICME-arrival forecasting?===<br /> <br /> ==Future Plan==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=969 2013-05-30T09:11:49Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> =='''Scientific Questions'''==<br /> <br /> ----<br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> ==== - What is the role of the flare-associated reconnection?====<br /> ==== - What is the role of emerging flux and poloidal-flux injection?====<br /> ==== - How long the Lorentz force dominates over the aerodynamic drag====<br /> ==== - How the inductive effects affect the CME eruption and ICME propagation?====<br /> ==== - What is the role of the ICME/ambient-field reconnection?====<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> ==== - Which processes are involved in ICME-ICME interactions?====<br /> ==== - How ICME-ICME interactions affect the dynamics and structure of ICMEs?====<br /> ==== - How high-speed solar wind streams (corotating interacting regions) affect ICMEs?====<br /> ==== - How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?====<br /> <br /> ----<br /> <br /> ===What is the state of art in the ICME-arrival forecasting?===<br /> <br /> ==Future Plan==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=968 2013-05-30T09:06:56Z

<p>Bvrsnak: /* Scientific Questions */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> =='''Scientific Questions'''==<br /> <br /> ----<br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> ==== - What is the role of the flare-associated reconnection?====<br /> ==== - What is the role of emerging flux and poloidal-flux injection?====<br /> ==== - How long the Lorentz force dominates over the aerodynamic drag====<br /> ==== - How the inductive effects affect the CME eruption and ICME propagation?====<br /> ==== - What is the role of the ICME/ambient-field reconnection?====<br /> <br /> ----<br /> <br /> ===''How much variable ambient conditions affect ICMEs?''===<br /> ==== - Which processes are involved in ICME-ICME interactions?====<br /> ==== - How ICME-ICME interactions affect the dynamics and structure of ICMEs?====<br /> ==== - How high-speed solar wind streams (corotating interacting regions) affect ICMEs?====<br /> ==== - How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?====<br /> <br /> ----<br /> <br /> <br /> <br /> ===What are event periods which need special attention for linking solar to in situ observations?===<br /> *interacting events, very fast or very slow CMEs, or other special properties<br /> #late July to early August 2010<br /> #February 2011<br /> #early March 2012<br /> #July 2012<br /> <br /> ==Future Plan==</div>

Bvrsnak http://solar.gmu.edu/heliophysics/index.php?title=Working_Group_2&diff=967 2013-05-30T09:06:19Z

<p>Bvrsnak: /* Scientific Objectives */</p> <hr /> <div>Theory group led by Bojan Vrsnak (Croatia) and Yuming Wang (China)<br /> <br /> <br /> =='''Objectives'''==<br /> *Initiation of CMEs and their take-off dynamics (&quot;acceleration stage&quot;)<br /> *Heliospheric dynamics of ICMEs and evolution of their structure<br /> *Relationship between empirical, analytical, and numerical propagation models and comparison with observations; forecasting aspects<br /> *CME/ICME-associated phenomena (flares, shocks, etc.)<br /> <br /> ==Scientific Questions==<br /> <br /> ----<br /> <br /> ===''Which mechanisms, processes, forces are governing the CME take-off and ICME propagation?'' ===<br /> ==== - What is the role of the flare-associated reconnection?====<br /> ==== - What is the role of emerging flux and poloidal-flux injection?====<br /> ==== - How long the Lorentz force dominates over the aerodynamic drag====<br /> ==== - How the inductive effects affect the CME eruption and ICME propagation?====<br /> ==== - What is the role of the ICME/ambient-field reconnection?====<br /> <br /> ----<br /> <br /> ===How much variable ambient conditions affect ICMEs?===<br /> ==== - Which processes are involved in ICME-ICME interactions?====<br /> ==== - How ICME-ICME interactions affect the dynamics and structure of ICMEs?====<br /> ==== - How high-speed solar wind streams (corotating interacting regions) affect ICMEs?====<br /> ==== - How the ICME-driven shock evolves in the decreasing Alfven-velocity environment?====<br /> <br /> ----<br /> <br /> ===What is the cause of &quot;problematic&quot; ICMEs, i.e., ICMEs without clear CME counterparts near the Sun?===<br /> <br /> ===Can we find examples of front-side full halo CMEs in C2, but have no ICME signatures at 1 AU? Does this kind of event exist or not?===<br /> <br /> ===What are event periods which need special attention for linking solar to in situ observations?===<br /> *interacting events, very fast or very slow CMEs, or other special properties<br /> #late July to early August 2010<br /> #February 2011<br /> #early March 2012<br /> #July 2012<br /> <br /> ==Future Plan==</div>

Bvrsnak