Lightning-generated whistler waves observed by probes on the Communication/Navigation Outage Forecast System satellite at low latitudes

被引：22

作者：

Holzworth, R. H. ^{[1
]}

McCarthy, M. P. ^{[1
]}

Pfaff, R. F. ^{[2
]}

Jacobson, A. R. ^{[1
]}

Willcockson, W. L. ^{[1
]}

Rowland, D. E. ^{[2
]}

机构：

[1] Univ Washington, Seattle, WA 98195 USA

[2] NASA, Lab Space Weather, Goddard Space Flight Ctr, Greenbelt, MD 20771 USA

来源：

JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS | 2011年 / 116卷

关键词：

GAMMA-RAY FLASHES; ELECTRICAL MEASUREMENTS; ACTIVE THUNDERSTORM; ATMOSPHERE; IONOSPHERE; LAYERS;

D O I：

10.1029/2010JA016198

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Direct evidence is presented for a causal relationship between lightning and strong electric field transients inside equatorial ionospheric density depletions. In fact, these whistler mode plasma waves may be the dominant electric field signal within such depletions. Optical lightning data from the Communication/Navigation Outage Forecast System (C/NOFS) satellite and global lightning location information from the World Wide Lightning Location Network are presented as independent verification that these electric field transients are caused by lightning. The electric field instrument on C/NOFS routinely measures lightning-related electric field wave packets or sferics, associated with simultaneous measurements of optical flashes at all altitudes encountered by the satellite (401-867 km). Lightning-generated whistler waves have abundant access to the topside ionosphere, even close to the magnetic equator.

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