1University of California, Los Angeles, CA, USA
2Kyushu University, Fukuoka, Japan
3University of California, Berkeley, CA, USA
4Florida Institute of Technology, Florida, USA
The strong interplanetary shock wave that intersected the front
of the
magnetosphere at about 2344 UT on Sept. 24, 1998, launched a compression
of
the magnetosphere that was followed around the globe by a new generation
of
magnetometers with rapid sampling and precise GPS-synchronized timing.
Magnetometers of these chains included those in the Circum Pan Pacific
Magnetometer Network, those in the IGPP/LANL array, those in the MEASURE
array and those in the MACCS array. The event exhibited all the
classical
signatures of an SI including the preliminary decrease before the main
increase in the H-component. The ability to model this event
and its
induced ionospheric currents using an MHD code allows us to compare
the
compression as it is seen in the magnetosphere with the response of
the
ionospheric currents.
1. GA 3.08
2. Magnetotail Dynamics