An observation-based, hybrid 3D-MHD solar wind modeling system, H3DM

Details An observation-based, hybrid 3D-MHD solar wind modeling system, H3DM An observation-based, hybrid 3D-MHD solar wind modeling system, H3DM

Dec 2003

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2003agufmsh51a..04f&link_type=abstract

American Geophysical Union, Fall Meeting 2003, abstract #SH51A-04

Physics

2134 Interplanetary Magnetic Fields, 2139 Interplanetary Shocks, 2164 Solar Wind Plasma, 2722 Forecasting, 7513 Coronal Mass Ejections

Scientific paper

A major space weather challenge is to characterize and predict solar wind conditions, and in particular the evolution of the interplanetary magnetic field (IMF) near Earth. This requires modeling the non-uniform, ambient solar wind and tracking the propagation of interplanetary shocks and coronal mass ejections through the heliosphere. The mapping the IMF lines connecting the traveling shock region to the Earth is also required for predictions of solar energetic particles (SEP) and predictions based upon SEPs. Our group is developing an observation-driven, hybrid, kinematic/3D-MHD solar wind modeling system (H3DM) in order to simulate realistic solar wind conditions, including the time-dependent IMF vector (including Bz) direction and magnitude at Earth. This system couples two mature solar wind codes: the Hakamada-Akasofu-Fry (HAF) model and the Interplanetary Global Model, Vectorized (IGMV). Scientifically, this effort seeks to improve the understanding of the role various drivers of interplanetary disturbances play throughout the solar cycle. Operationally, we are working toward providing a capability to predict, shortly after the launch of large-scale structures at the Sun, their evolution and propagation to Earth. We will describe the H3DM modeling system and provide a project status report.

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