globalchange  > 气候减缓与适应
DOI: 10.1029/2017JD027771
Scopus记录号: 2-s2.0-85047606297
论文题名:
A Terrestrial Gamma-Ray Flash inside the Eyewall of Hurricane Patricia
作者: Bowers G.S.; Smith D.M.; Kelley N.A.; Martinez-McKinney G.F.; Cummer S.A.; Dwyer J.R.; Heckman S.; Holzworth R.H.; Marks F.; Reasor P.; Gamache J.; Dunion J.; Richards T.; Rassoul H.K.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:10
起始页码: 4977
结束页码: 4987
语种: 英语
英文关键词: eyewall ; Hurricane Patricia ; lightning ; positrons ; terrestrial gamma-ray flash ; TGF
Scopus关键词: Patricia
英文摘要: On 23 October 2015 at ~1732 UTC, the Airborne Detector for Energetic Lightning Emissions (ADELE) flew through the eyewall of Hurricane Patricia aboard National Oceanic and Atmospheric Administration's Hurricane Hunter WP-3D Orion, observing the first terrestrial gamma-ray flash (TGF) ever seen in that context, and the first ever viewed from behind the forward direction of the main TGF gamma-ray burst. ADELE measured 184 counts of ionizing radiation within 150 μs, coincident with the detection of a nearby lightning flash. Lightning characteristics inferred from the associated radio signal and comparison of the gamma-ray energy spectrum to simulations suggests that this is the first observation of a reverse beam of positrons predicted by the leading TGF production model, relativistic runaway electron avalanches. This paper presents the first experimental evidence of a previously predicted second component of gamma-ray emission from TGFs. The brightest emission, commonly observed from orbit, is from the relativistic runaway electron avalanche bremsstrahlung; the second, fainter component reported here is from the bremsstrahlung of positrons propagating in the reverse direction. This reverse gamma-ray beam penetrates to low enough altitudes to allow ground-based detection of typical upward TGFs from mountain observatories. ©2018. American Geophysical Union. All Rights Reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/113860
Appears in Collections:气候减缓与适应

Files in This Item:

There are no files associated with this item.


作者单位: Santa Cruz Institute for Particle Physics and Physics Department, University of California, Santa Cruz, CA, United States; Swift Navigation, San Francisco, CA, United States; Department of Electrical and Computer Engineering, Duke University, Durham, NC, United States; Department of Physics and Space Sciences Center (EOS), University of New Hampshire, Durham, NH, United States; Earth Networks, Germantown, MD, United States; Earth and Space Sciences, University of Washington, Seattle, WA, United States; Hurricane Research Division, Atlantic Oceanographic and Meteorological Laboratory, NOAA, Miami, FL, United States; Hurricane Hunters, Aircraft Operations Center, NOAA, Tampa, FL, United States; Department of Physics and Space Sciences, Florida Institute of Technology, Melbourne, FL, United States

Recommended Citation:
Bowers G.S.,Smith D.M.,Kelley N.A.,et al. A Terrestrial Gamma-Ray Flash inside the Eyewall of Hurricane Patricia[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(10)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Bowers G.S.]'s Articles
[Smith D.M.]'s Articles
[Kelley N.A.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Bowers G.S.]'s Articles
[Smith D.M.]'s Articles
[Kelley N.A.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Bowers G.S.]‘s Articles
[Smith D.M.]‘s Articles
[Kelley N.A.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.