Anisotropic BATSRUS and CRCM two way coupling

Details Anisotropic BATSRUS and CRCM two way coupling Anisotropic BATSRUS and CRCM two way coupling

Dec 2011

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2011agufmsm51b2061m&link_type=abstract

American Geophysical Union, Fall Meeting 2011, abstract #SM51B-2061

Physics

[2730] Magnetospheric Physics / Magnetosphere: Inner, [2753] Magnetospheric Physics / Numerical Modeling

Scientific paper

As a newly extended capability of the BATSRUS code, anisotropic MHD can solve for the anisotropic ion pressure and isotropic electron pressure. It does a good job on simulating the quiet time magnetosphere, and the coupling with the Rice Convection Model (RCM) produces reasonable solutions for geomagnetic storms. However, RCM assumes the isotropic distribution of particles, which ignores the anisotropy information from BATSRUS. In order to better represent the near-Earth magnetosphere especially during disturbed times, we couple the anisotropic BATSRUS to the Comprehensive Ring Current Model (CRCM), which resolves the pitch-angle distribution. We present the preliminary results here, including the coupling algorithm and some validation tests.

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