Geomagnetic effects of the Hall and Pedersen current flowing in the auroral ionosphere

Details Geomagnetic effects of the Hall and Pedersen current flowing in the auroral ionosphere Geomagnetic effects of the Hall and Pedersen current flowing in the auroral ionosphere

Dec 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989jgr....9417185a&link_type=abstract

Journal of Geophysical Research (ISSN 0148-0227), vol. 94, Dec. 1, 1989, p. 17185-17199.

Physics

11

Auroral Zones, Eiscat Radar System (Europe), Geomagnetism, Hall Effect, Ionospheric Currents, Electric Current, Electric Fields, Magnetic Fields

Scientific paper

Geomagnetic effects of the Hall and Pedersen current flowing in the auroral ionosphere were studied using EISCAT radar data from simultaneous measurements of the electric field and conductivities at a fixed point, carried out on July 28-29, 1987, together with data from ground magnetometers. These data were processed statistically on a coordinate system in which the pure Hall current and the Pedersen current can be separated. The contribution of the Hall current was estimated as 0.56 nT/(A/km), when its center is above the radar station. The Pedersen current contributions were estimated to be in the 0.14-0.20 nT(A/km) range.

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