Physics
Scientific paper
Sep 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984esasp.217..679s&link_type=abstract
In ESA Achievements of the Intern. Magnetospheric Study (IMS) p 679-683 (SEE N85-24544 14-46)
Physics
Auroral Electrojets, Current Sheets, Geomagnetic Pulsations, Magnetic Storms, Geos Satellites (Esa), Geosynchronous Orbits, Magnetometers, Temporal Distribution
Scientific paper
Coordinated analysis of magnetometer data from the AFGL Magnetometer Network and the GEOS 2 and 3 synchronous satellites was used to examine the pulsations and current systems associated with magnetospheric substorms. At the time a Pi 2 is observed on the ground, the magnetic disturbance in space is often localized such that synchronous satellites separated by 30 deg see quite different field signatures. The ground magnetic bay structure was used to locate the substorm current wedge with respect to the network and synchronous satellites. A satellite inside the wedge observes a dipolarization of the field at substorm onset and is more likely to observe magnetic disturbances than a satellite outside the wedge. The AFGL ground observations are useful for understanding the temporal development of substorms.
Gelpi C.
Hughes Jeffrey W.
Knecht David J.
Lester Mark
Singer Howard J.
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