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Observations of ionospheric electric fields above atmospheric weather systemsWe report on the observations of a number of quasi-dc electric field events associated with large-scale atmospheric weather formations. The observations were made by the electric field experiment onboard the San Marco D satellite, operational in an equatorial orbit from May to December 1988. Several theoretical studies suggest that electric fields generated by thunderstorms are present at high altitudes in the ionosphere. In spite of such favorable predictions, weather-related events are not often observed since they are relatively weak. We shall report here on a set of likely E field candidates for atmospheric-ionospheric causality, these being observed over the Indonesian Basin, northern South America, and the west coast of Africa; all known sites of atmospheric activity. As we shall demonstrate, individual events often be traced to specific active weather features. For example, a number of events were associated with spacecraft passages near Hurricane Joan in mid-October 1988. As a statistical set, the events appear to coincide with the most active regions of atmospheric weather.
Document ID
19950045390
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Farrell, W. M. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Aggson, T. L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Rodgers, E. B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Hanson, W. B. (Texas Univ. at Dallas, Richardson, TX, United States)
Date Acquired
August 16, 2013
Publication Date
October 1, 1994
Publication Information
Publication: Journal of Geophysical Research
Volume: 99
Issue: A10
ISSN: 0148-0227
Subject Category
GEOPHYSICS
Distribution Limits
Public
Copyright
Other