Signature of rapid subauroral ion drifts in the high-latitude ionosphere structure

Details Signature of rapid subauroral ion drifts in the high-latitude ionosphere structure Signature of rapid subauroral ion drifts in the high-latitude ionosphere structure

Apr 1986

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986angeo...4..145g&link_type=abstract

Annales Geophysicae, Series A - Upper Atmosphere and Space Sciences, vol. 4, April 1986, p. 145-153.

Computer Science

Sound

4

Atmospheric Pressure, F Region, Ionospheric Drift, Polar Substorms, Synchronous Satellites, Atmospheric Circulation, Atmospheric Sounding, Night Sky, Plasma Jets, Satellite Sounding, Troughs

Scientific paper

Characteristics of fast subauroral ion drifts were investigated using simultaneous satellite data and ground measurements from vertical and oblique-incidence sounding. Results show a time development of the rapid subauroral ion drift band in about 5-30 minutes, leading to the formation of a trough of narrow latitude, extended longitude, and which is extremely deep in the electron density distribution in the F-region. Observational data, in addition to ionograms derived from numerical ray-tracing calculations for a model electron density distribution, are consistent with a scenario for the formation of a trough in a trough on the nightside as a result of the increase of the loss processes related to rapid drift speed.

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