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Atmospheric electric field and current configurations in the vicinity of mountainsA number of investigations have been conducted regarding the electrical distortion produced by the earth's orography. Hays and Roble (1979) utilized their global model of atmospheric electricity to study the effect of large-scale orographic features on the currents and fields of the global circuit. The present paper is concerned with an extension of the previous work, taking into account an application of model calculations to orographic features with different configurations and an examination of the electric mapping of these features to ionospheric heights. A two-dimensional quasi-static numerical model of atmospheric electricity is employed. The model contains a detailed electrical conductivity profile. The model region extends from the surface to 100 km and includes the equalization layer located above approximately 70 km. The obtained results show that the electric field and current configurations above mountains depend upon the curvature of the mountain slopes, on the width of the mountain, and on the columnar resistance above the mountain (or mountain height).
Document ID
19850057362
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Tzur, I.
(National Center for Atmospheric Research Boulder, CO, United States)
Roble, R. G.
(National Center for Atmospheric Research Boulder, CO, United States)
Adams, J. C.
(National Center for Atmospheric Research Boulder, CO, United States)
Date Acquired
August 12, 2013
Publication Date
June 30, 1985
Publication Information
Publication: Journal of Geophysical Research
Volume: 90
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
85A39513
Funding Number(s)
CONTRACT_GRANT: NASA ORDER W-15028
Distribution Limits
Public
Copyright
Other

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