Other
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsa21b0452c&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SA21B-0452
Other
2409 Current Systems (2708), 2708 Current Systems (2409), 2730 Magnetosphere: Inner, 2778 Ring Current, 2784 Solar Wind/Magnetosphere Interactions
Scientific paper
The geomagnetic storm disturbances observed during the period of April 17 - 19 are extremely large and complex. The geomagnetic field experiences a sequence of large changed in solar wind dynamic pressure and periods of extreme southward interplanetary magnetic field. The spatial and temporal consequences of these drivers can be seen in global maps of the low latitude magnetic disturbance field displayed as a function of LT and UT. These maps show the global results of sudden compressions of the geomagnetic field, substorm disturbances, as well as the field depression resulting from the growth of the partial and symmetric ring currents. In particular, features of recurrent activity will be examined with respect to solar wind drivers. The complex activity during the April 2002 interval will be contrasted to the disturbance field observed during other large magnetic storms that have been the recent focus of community studies.
Clauer Robert C.
Kozyra Janet U.
Petrov V. G.
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