Longitudinal differences in electron precipitation near L = 4
The origin of the significant differences revealed in data on electron precipitation characteristics obtained above Siple Station, Antarctica, and Kerguelen Islands was investigated. The two stations are both in the Southern Hemisphere at nearly the same magnetic latitude (L=4) and at longitudes tha...
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ftnasantrs:oai:casi.ntrs.nasa.gov:19890024142 2023-05-15T13:41:01+02:00 Longitudinal differences in electron precipitation near L = 4 Bering, E. A., III Benbrook, J. R. Leverenz, H. Roeder, J. L. Stansbery, E. G. Unclassified, Unlimited, Publicly available Oct 1, 1988 http://ntrs.nasa.gov/search.jsp?R=19890024142 unknown http://ntrs.nasa.gov/search.jsp?R=19890024142 Accession ID: 89A11513 Copyright Other Sources 46 Journal of Geophysical Research; 93; 11385-11 1988 ftnasantrs 2012-02-15T17:54:56Z The origin of the significant differences revealed in data on electron precipitation characteristics obtained above Siple Station, Antarctica, and Kerguelen Islands was investigated. The two stations are both in the Southern Hemisphere at nearly the same magnetic latitude (L=4) and at longitudes that place them roughly at equal distances east and west of the center of the South Atlantic magnetic anomaly. The primary data used in the study were counting rates from rocket-borne parachute-deployed scintillation counters and VLF data from ground-based and rocket-borne receivers. The two locations were found to differ in two major respects: (1) the precipitation background at Kerguelen Islands is very low, with high levels of wave activity being required to produce any detectable precipitation, and (2) X-ray microbursts, very common at Siple, were found to be essentially absent at Kerguelen. This observation supports models of the microburst generation process which predict maximum pitch angle scatterings of only a few tenths of a degree. Other/Unknown Material Antarc* Antarctica Kerguelen Islands NASA Technical Reports Server (NTRS) Kerguelen Kerguelen Islands Siple ENVELOPE(-83.917,-83.917,-75.917,-75.917) |
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NASA Technical Reports Server (NTRS) |
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ftnasantrs |
language |
unknown |
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46 Bering, E. A., III Benbrook, J. R. Leverenz, H. Roeder, J. L. Stansbery, E. G. Longitudinal differences in electron precipitation near L = 4 |
topic_facet |
46 |
description |
The origin of the significant differences revealed in data on electron precipitation characteristics obtained above Siple Station, Antarctica, and Kerguelen Islands was investigated. The two stations are both in the Southern Hemisphere at nearly the same magnetic latitude (L=4) and at longitudes that place them roughly at equal distances east and west of the center of the South Atlantic magnetic anomaly. The primary data used in the study were counting rates from rocket-borne parachute-deployed scintillation counters and VLF data from ground-based and rocket-borne receivers. The two locations were found to differ in two major respects: (1) the precipitation background at Kerguelen Islands is very low, with high levels of wave activity being required to produce any detectable precipitation, and (2) X-ray microbursts, very common at Siple, were found to be essentially absent at Kerguelen. This observation supports models of the microburst generation process which predict maximum pitch angle scatterings of only a few tenths of a degree. |
format |
Other/Unknown Material |
author |
Bering, E. A., III Benbrook, J. R. Leverenz, H. Roeder, J. L. Stansbery, E. G. |
author_facet |
Bering, E. A., III Benbrook, J. R. Leverenz, H. Roeder, J. L. Stansbery, E. G. |
author_sort |
Bering, E. A., III |
title |
Longitudinal differences in electron precipitation near L = 4 |
title_short |
Longitudinal differences in electron precipitation near L = 4 |
title_full |
Longitudinal differences in electron precipitation near L = 4 |
title_fullStr |
Longitudinal differences in electron precipitation near L = 4 |
title_full_unstemmed |
Longitudinal differences in electron precipitation near L = 4 |
title_sort |
longitudinal differences in electron precipitation near l = 4 |
publishDate |
1988 |
url |
http://ntrs.nasa.gov/search.jsp?R=19890024142 |
op_coverage |
Unclassified, Unlimited, Publicly available |
long_lat |
ENVELOPE(-83.917,-83.917,-75.917,-75.917) |
geographic |
Kerguelen Kerguelen Islands Siple |
geographic_facet |
Kerguelen Kerguelen Islands Siple |
genre |
Antarc* Antarctica Kerguelen Islands |
genre_facet |
Antarc* Antarctica Kerguelen Islands |
op_source |
Other Sources |
op_relation |
http://ntrs.nasa.gov/search.jsp?R=19890024142 Accession ID: 89A11513 |
op_rights |
Copyright |
_version_ |
1766144466256658432 |