Modeling the May 1, 1998 CME propagation
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Center for Space Environment Modeling http://csem.engin.umich.edu W. Manchester 1 , I. Roussev, I.V. Sokolov 1 , 1 University of Michigan AGU Berkeley March 1, 2003 Modeling the May 1, 1998 CME propagation
description
Modeling the May 1, 1998 CME propagation. W. Manchester 1 , I. Roussev, I.V. Sokolov 1 , 1 University of Michigan AGU Berkeley March 1, 2003. Carrington Rotation 1935. The 3D model of Roussev, 2003 ApJ, volume 595, pages L57 - PowerPoint PPT Presentation
Transcript of Modeling the May 1, 1998 CME propagation
Center for Space Environment Modeling
http://csem.engin.umich.edu
W. Manchester1, I. Roussev, I.V. Sokolov1,
1University of Michigan
AGUBerkeley
March 1, 2003
Modeling the May 1, 1998 CME propagation
Center for Space Environment Modeling
http://csem.engin.umich.edu
Carrington Rotation 1935
The 3D model of Roussev, 2003 ApJ, volume 595, pages L57
Internal degrees of freedom depend on temperature (n+2)/n n(T) = n0 + n1T/T0 n0 =4 n1 = 9
Magnetic field specified by magnetogram data obtained by the Wilcox Solar Observatory
Center for Space Environment Modeling
http://csem.engin.umich.edu
The Ambient Solar Wind
Magnetic and velocity structure are shown for the steady-state solar wind solution. The purple sheet shows the current sheet while high speed wind is shown as orange (760 km/s) and slow speed wind as green (470 km/s).
Center for Space Environment Modeling
http://csem.engin.umich.edu
View of the wind at 1 AU
False color image shows the wind speed at 1 AU, while contour lines show the magnetic field strength.
Center for Space Environment Modeling
http://csem.engin.umich.edu
Properties of the Initial State
Magnetic field lines shown in white superimposed on false color images of density (left) and magnetic field strength (right).
Center for Space Environment Modeling
http://csem.engin.umich.edu
False color image of velocity magnitude with field lines shown in white
QuickTime™ and aBMP decompressorare needed to see this picture.
Center for Space Environment Modeling
http://csem.engin.umich.edu
3D View and view on the Equatorial Plane
False color images of velocity magnitude with white magnetic field lines at t = 0.53 hours
Center for Space Environment Modeling
http://csem.engin.umich.edu
Features of the Model
CME initiated by force imbalance Flux rope propagates from active region 8210 AMR essential to treat the many length scales of the system including active
region length scale in a 3D corona based on magnetic synoptic maps Future simulations will take the CME to 1 AU and use model output to drive
magnetospheric simulations
