Physics – Space Physics
Scientific paper
Dec 2002
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2002agufmsa12a..06l&link_type=abstract
American Geophysical Union, Fall Meeting 2002, abstract #SA12A-06
Physics
Space Physics
2431 Ionosphere/Magnetosphere Interactions (2736), 2437 Ionospheric Dynamics, 2736 Magnetosphere/Ionosphere Interactions
Scientific paper
The first coordinated TIMED/CEDAR storm campaign of April 14-24, 2002, provides an excellent opportunity for the space physics community to tackle some outstanding questions regarding the Sun-Earth connection, such as the energy coupling between the Sun and the Earth. A set of comprehensive data has been collected both from space and from ground to study this event, including the global auroral images from the IMAGE FUV instrument, auroral precipitation from polar orbiting satellites, ion drifts from the SuperDARN radars, and magnetic perturbations from a global network of ground magnetometers. The Assimilative Mapping of Ionospheric Electrodynamics (AMIE) procedure is used to derive "snapshot" maps of the large-scale ionospheric electrodynamic fields. The preliminary analysis of the data has indicated dynamic changes in the ionospheric electrodynamic system during the storm, with AE going up to 2400 nT and Dst going down to -150 nT. Energy deposition in terms of auroral precipitation and Joule heating will be estimated, and the variability of the energy inputs associated with geomagnetic activity as well as solar wind conditions will be examined. We also investigate energy partitioning in the upper atmosphere.
Evans Silvan D.
Immel Thomas J.
Lu Gang
Mende Stephen B.
Pinnock Michael
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