Modeling the behavior of ionosphere above Millstone Hill during the September 21-27, 1998 storm

CORC > 武汉物理与数学研究所 > 中国科学院武汉物理与数学研究所 > 2011年以前论文发表（包括2011年）

	Modeling the behavior of ionosphere above Millstone Hill during the September 21-27, 1998 storm
	Lei, JH ; Liu, LB ; Wan, WX ; Zhang, SR
刊名	JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS
	2004-08-01
卷号	66 期号:12 页码:1093-1102
关键词	ionospheric storm incoherent scatter radar data assimilation modeling and forecasting
英文摘要	A theoretical ionospheric model is employed to investigate the ionospheric behavior as observed by the incoherent-scatter radar (ISR) at Millstone Hill during the September 21-27, 1998 storm. The observed NmF2 presented a significant negative phase on September 25, and a G condition (h(m)F(2) < 200 km) was also observed. The model results based on the standard input parameters (climatological model values) are in good agreement with the observed electron densities under quiet conditions, but there are large discrepancies during disturbed periods. The exospheric temperature T-ex, neutral winds, atomic oxygen density [O] and molecular nitrogen density [N-2], and solar flux are inferred from the ISR ion temperature profiles and from the electron density profiles. Our calculated results show that the maximum T-ex is higher than 1700 K, and an averaged decrease in [O] is a factor of 2.2 and an increase in [N-2] at 300 km is about 1.8 times for the disturbed day, September 25, relative to the quiet day level. Therefore, the large change of [N-2]/[O] ratio gives a good explanation for the negative phase at Millstone Hill during this storm. Furthermore, at the disturbed nighttime the observations show a strong NmF2 decrease, accompanied by a significant h(m)F(2) increase after the sudden storm commencement (SSC). Simulations are carried out based on the inferred T-ex. It is found that the uplift of F-2 layer during the period from sunset to post-midnight is mainly associated with the large equatorward winds, and a second rise in h(m)F(2) after midnight results from the depleted N-e in the bottom-side of F-2 layer due to the increased recombination, while the "midnight collapse" of h(m)F(2) is attributed to the large-scale traveling atmospheric disturbances. (C) 2004 Elsevier Ltd. All rights reserved.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences
研究领域[WOS]	Geochemistry & Geophysics ; Meteorology & Atmospheric Sciences
关键词[WOS]	REACTION-RATE COEFFICIENTS ; ELECTRON-DENSITY PROFILE ; F-REGION ; NIGHTTIME IONOSPHERE ; LATITUDE IONOSPHERE ; GEOMAGNETIC STORMS ; LOWER ATMOSPHERE ; CROSS-SECTIONS ; ATOMIC OXYGEN ; THERMOSPHERE
收录类别	SCI
语种	英语
WOS记录号	WOS:000223009300009
公开日期	2015-07-28
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/4396]
专题	武汉物理与数学研究所_2011年以前论文发表（包括2011年）
作者单位	1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 3.MIT, Haystack Observ, Westford, MA 01886 USA
推荐引用方式 GB/T 7714	Lei, JH,Liu, LB,Wan, WX,et al. Modeling the behavior of ionosphere above Millstone Hill during the September 21-27, 1998 storm[J]. JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,2004,66(12):1093-1102.
APA	Lei, JH,Liu, LB,Wan, WX,&Zhang, SR.(2004).Modeling the behavior of ionosphere above Millstone Hill during the September 21-27, 1998 storm.JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS,66(12),1093-1102.
MLA	Lei, JH,et al."Modeling the behavior of ionosphere above Millstone Hill during the September 21-27, 1998 storm".JOURNAL OF ATMOSPHERIC AND SOLAR-TERRESTRIAL PHYSICS 66.12(2004):1093-1102.