Other
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsm11c0450f&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SM11C-0450
Other
2730 Magnetosphere: Inner, 2731 Magnetosphere: Outer, 2740 Magnetospheric Configuration And Dynamics, 2784 Solar Wind/Magnetosphere Interactions, 2799 General Or Miscellaneous
Scientific paper
When the solar wind dynamic pressure suddenly increase the magnetopause moves inward, the magnetic field increases over much of the magnetopshere (but decreases in a limited region near the noon midnight meridian) and ULF waves propagate through the system. We compare Polar observations during both increases and decreases of local magnetic field to compare with the changes predicted by the UCLA/NOAA Geospace Global Circulation Model (GGCM) for the solar wind conditions observed by Wind for each event. We find that at times the model and data agree. In some cases more waves are predicted than observed and at other times more waves are observed than predicted. Unlike steady state models such as the T89 and T96 this dynamic model can predict fluctuations in the solar wind over short time scales. Overall the MHD model will replicates the Polar magnetic field observations.
Fowler G.
Raeder Joachim
Russell Chris
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