DOI: 10.1002/jgrd.50437
论文题名: Atmospheric electric parameters and micrometeorological processes during the solar eclipse on 15 January 2010
作者: Kumar C.P.A. ; Gopalsingh R. ; Selvaraj C. ; Nair K.U. ; Jeyakumar H.J. ; Vishnu R. ; Muralidas S. ; Balan N.
刊名: Journal of Geophysical Research Atmospheres
ISSN: 21698996
出版年: 2013
卷: 118, 期: 11 起始页码: 5098
结束页码: 5104
语种: 英语
英文关键词: annular solar eclipse
; atmospheric electrodynamics
; GCR flux reduction
; space charge variation
Scopus关键词: Electric fields
; Above mean sea level (amsl)
; Atmospheric electrodynamics
; Charge variation
; Conductivity enhancement
; Flux reduction
; Meteorological parameters
; Near-Earth environments
; Solar eclipse
; Sea level
; atmospheric electricity
; data acquisition
; electric field
; electrical conductivity
; micrometeorology
; parameterization
; solar eclipse
; India
; Tamil Nadu
; Tirunelveli
英文摘要: Indian scientists got the unique opportunity to study the near-Earth environment during a long annular solar eclipse at the end of the last long deep solar minimum, on 15 January 2010. Continuous high time resolution records of the atmospheric electric parameters and meteorological parameters were made at Tirunelveli (8.07°N, 77.08°E, 35 m Above Mean Sea Level (AMSL) and Braemore Hill (8.41°N, 76.59°E, 460 m AMSL) stations where the eclipse was during 11:07:57-15:06:52 IST with maximum obscuration (∼90%) at 13:17:09 Indian Standard Time (IST). The recorded values of the parameters show marked deviations from those normally observed on control fair-weather days. The ambient electric field underwent a large drop by up to 65% during the eclipse, and potential gradient showed epochs of enhancements during and after the eclipse until postsunset. The data also seem to reveal the long lasting paradox of conductivity enhancement during eclipse, which may be due to the eclipse induced upsurge of low winds or waves that brings high density of free space charges embedded in air parcels. © 2013. 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/63692
Appears in Collections: 影响、适应和脆弱性 气候减缓与适应
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作者单位: Equatorial Geophysical Research Laboratory, Indian Institute of Geomagnetism, Tamilnadu, Tirunelveli 627 011, India; Centre for Earth Science Studies, Kerala, Thiruvananthapuram, India; Institute of Space Sciences, National Central University, Chung-Li, Taiwan
Recommended Citation:
Kumar C.P.A.,Gopalsingh R.,Selvaraj C.,et al. Atmospheric electric parameters and micrometeorological processes during the solar eclipse on 15 January 2010[J]. Journal of Geophysical Research Atmospheres,2013-01-01,118(11)