Coordinated Ground and Satellite Observations of Conductivities and Electric Fields, and Field-Aligned Currents
- Thomas A. Potemra
Published Online: 21 MAR 2013
Copyright 1984 by the American Geophysical Union.
How to Cite
Robinson, R. M. (1984) Coordinated Ground and Satellite Observations of Conductivities and Electric Fields, and Field-Aligned Currents, in Magnetospheric Currents (ed T. A. Potemra), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM028p0192
- Published Online: 21 MAR 2013
- Published Print: 1 JAN 1984
Print ISBN: 9780875900551
Online ISBN: 9781118664131
- Magnetospheric currents—Congresses;
- Plasma instabilities—Congresses
Chatanika radar measurements of conductivities and electric fields have been made during coincident passes of several polar orbiting satellites. Observations made in coordination with the Triad satellite have been especially useful because they have yielded information about the electrodynamic coupling between the ionosphere and the magnetosphere. The Triad data are used to determine the field-aligned currents along field lines connected to the ionosphere. The radar measurements of electric fields and conductivities on the same field lines provide information about the closure of the field-aligned currents. Among the auroral features that have been studied in this manner are the morning- and evening-sector diffuse aurora and auroral arcs. In this paper, these observations are reviewed, and the manner in which the ionospheric conductivity influences the coupling between the ionosphere and the magnetosphere is discussed.