Satellite observations of transionospheric pulse pairs
- Los Alamos National Lab., NM (United States)
The BLACKBEARD payload aboard the ALEXIS satellite has been making broadband observations in the VHF band of the radio spectrum. Since November of 1993 several hundred unusual signals have been recorded. The peculiar nature of these bursts of radio noise is that they have a duration of approximately 10 {mu}sec, are typically 20 to 40 dB brighter than the average background, and occur in pairs separated by approximately 50 {mu}sec. The authors have dubbed these emissions TransIonospheric Pulse Pairs, or TIPP events. They do not know what the source of these emissions is, but the dispersion of these signals is consistent with an origin at or near the earth`s surface. The satellite field of view and time of day when TIPP events are generally detected are consistent with regions of thunderstorm activity such as south-central Africa or Indonesia. 4 refs., 5 figs.
- OSTI ID:
- 159783
- Journal Information:
- Geophysical Research Letters, Vol. 22, Issue 8; Other Information: PBD: 15 Apr 1995
- Country of Publication:
- United States
- Language:
- English
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