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Source locations for impulsive electric signals seen in the night ionosphere of VenusA mapping of the rate of occurrence of impulsive VLF noise bursts in Venus' dark low altitude ionosphere, which increases rapidly with decreasing altitude, as a function of latitude and longitude indicates enhanced occurrence rates over Atla. In a 30-sec observing period, there are impulsive signals 70 percent of the time at 160 km in the region of maximum occurrence; the occurrence rates, moreover, increase with decreasing latitude, so that the equatorial rate is of the order of 1.6 times that at 30 deg latitude. These phenomena are in keeping with lightning-generated wave sources.
Document ID
19890062443
Document Type
Reprint (Version printed in journal)
Authors
Russell, C. T. (California Univ. Los Angeles, CA, United States)
Von Dornum, M. (California Univ. Los Angeles, CA, United States)
Scarf, F. L. (California, University Los Angeles, United States)
Date Acquired
August 14, 2013
Publication Date
August 1, 1989
Publication Information
Publication: Icarus
Volume: 80
ISSN: 0019-1035
Subject Category
LUNAR AND PLANETARY EXPLORATION
Funding Number(s)
CONTRACT_GRANT: NAS2-12319
CONTRACT_GRANT: NAS2-12383
Distribution Limits
Public
Copyright
Other