Physics – Plasma Physics
Scientific paper
Dec 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agufmsh43a..05o&link_type=abstract
American Geophysical Union, Fall Meeting 2009, abstract #SH43A-05
Physics
Plasma Physics
[7513] Solar Physics, Astrophysics, And Astronomy / Coronal Mass Ejections, [7851] Space Plasma Physics / Shock Waves, [7924] Space Weather / Forecasting, [7959] Space Weather / Models
Scientific paper
Interplanetary coronal mass ejections (ICMEs) can be simulated by launching hydrodynamic ejecta with geometric and kinematic parameters derived from coronagraph observations. This approach promises to provide routine, event-by-event predictions of the global structure of heliospheric disturbances. We use the heliospheric code ENLIL driven by the Wang-Sheeley-Arge (WSA) coronal model maps to simulate the corotating solar wind streams and various fitting techniques applied to CMEs observed by coronagraphs to specify hydrodynamic ejecta launched into the heliospheric computational domain. We simulate eight CMEs observed by LASCO and STEREO coronagraphs in 2007-2008 and compare them with in-situ observations by ACE, STEREO, and MESSENGER spacecraft. Different initialization techniques with varying parameters are used to validate the numerical simulations and estimate their accuracy.
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