Physics – Geophysics
Scientific paper
Sep 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983jgr....88.7029s&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 88, Sept. 1, 1983, p. 7029-7036.
Physics
Geophysics
61
Earth Magnetosphere, Geomagnetic Micropulsations, Satellite Observation, Geosynchronous Orbits, Goes Satellites, Ground Stations, Magnetic Disturbances, Magnetic Signatures, Picosecond Pulses
Scientific paper
Simultaneous Pi 2 ground observations using the U.S. Air Force Geophysics Laboratory (AFGL) magnetometer network as well as space observations with the GOES 2 and 3 satellites are presented which indicate that the Pi 2 signal in space is often localized in such a way that synchronous satellites separated by 30 deg see very different field signatures. By contrast, on the ground at midlatitudes, similar features are often observed across the 60 deg width of the AFGL magnetometer network. In addition, when Pi 2's occur, as indicated by ground observations, their appearance at synchronous orbit near midnight is more likely during times of large rather than small K(p). These results are interpreted in terms of the plasma sheet model, which has been used to explain some of the Pi 2 pulsation properties.
Fougere Paul F.
Hughes Jeffrey W.
Knecht David J.
Singer Howard J.
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