Preliminary results from the coupled LFM-TING model of the high latitude ionosphere

Details Preliminary results from the coupled LFM-TING model of the high latitude ionosphere Preliminary results from the coupled LFM-TING model of the high latitude ionosphere

May 2001

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001agusm..sm51b12w&link_type=abstract

American Geophysical Union, Spring Meeting 2001, abstract #SM51B-12

Physics

2431 Ionosphere/Magnetosphere Interactions (2736), 2447 Modeling And Forecasting, 2475 Polar Cap Ionosphere, 2753 Numerical Modeling, 2788 Storms And Substorms

Scientific paper

The Lyon-Fedder-Mobarry global MHD code has been successfully used to model the coupled solar wind - magnetosphere - ionosphere system. The simulation uses the ideal MHD equations to model the interaction between the magnetospheric plasma and the solar wind. The magnetosphere - ionosphere interaction is modeled through a simple 2D electrostatic approximation for the conservation of current flowing between the magnetosphere and ionosphere. The Thermosphere - Ionosphere Nested Grid (TING) model is a three dimensional code designed to simulate the thermosphere - ionosphere system by solving the momentum, thermodynamic energy equations for the global thermosphere and ionosphere. TING uses magnetospheric indices to determine the magnetospheric input into the ionosphere. This paper presents the initial results from an effort, in conjunction with the Integrated Space Weather Model (ISWM), to replace the 2D ionosphere within the the LFM with TING. We will use results from the ISWM for a magnetic cloud propagated from the surface of the sun to the Earth as test case to assess the differences between the results from the uncoupled LFM and the coupled LFM-TING model.

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