Ionospheric temporal and spatial variations during the 18 August 2003 storm over China

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	Ionospheric temporal and spatial variations during the 18 August 2003 storm over China
	Wen, Debao ; Yuan, Yunbin ; On, Jikun ; Huo, Xingliang ; Zhang, Kefei
刊名	Earth Planets and Space
	2007
期号	4 页码:313-317
中文摘要	The effects of the 18 August 2003 geomagnetic storm on the ionosphere over China have been first studied by combining dual-frequency Global Positioning System (GPS) observation data from the Crustal Movement Observation Network of China (CMONOC) using the computerized ionospheric tomography (CIT) technique. The temporal and spatial variations of the ionosphere are analyzed using a time series of ionospheric electron density (IED) maps, and the ionospheric storm evolution process is revealed. The tomographic results show that the main ionospheric effects of this storm over China are: (1) that positive storm phase effects usually happen in the low-latitude ionosphere, (2) that negative storm phase effects occur in the mid-latitude ionosphere, and (3) that the equatorial anomaly structure can also be found. In contrast to the quiet period of the ionosphere on 17 August 2003, the equatorial anomaly crest moved to the north in the main phase of the storm and then moved back to the original location in the recovery phase on 19 August 2003. We compared the peak density NmF2 and the peak height h(m)F(2) obtained from the ionosonde observations at Wuhan station and those inverted by the CIT technique to confirm the reliability of the GPS-based tomographic technique. The tomographic results revealed that the GPS-based CIT technique can be used to monitor large-scale ionospheric disturbances during geomagnetic storms.
原文出处	://WOS:000247321500017
公开日期	2012-04-11
内容类型	期刊论文
源URL	[http://ir.whigg.ac.cn/handle/342008/3345]
专题	测量与地球物理研究所_其他_期刊论文
推荐引用方式 GB/T 7714	Wen, Debao,Yuan, Yunbin,On, Jikun,et al. Ionospheric temporal and spatial variations during the 18 August 2003 storm over China[J]. Earth Planets and Space,2007(4):313-317.
APA	Wen, Debao,Yuan, Yunbin,On, Jikun,Huo, Xingliang,&Zhang, Kefei.(2007).Ionospheric temporal and spatial variations during the 18 August 2003 storm over China.Earth Planets and Space(4),313-317.
MLA	Wen, Debao,et al."Ionospheric temporal and spatial variations during the 18 August 2003 storm over China".Earth Planets and Space .4(2007):313-317.