The influence of ionospheric thin shell height on TEC retrieval from GPS observation

	The influence of ionospheric thin shell height on TEC retrieval from GPS observation
	Wang, Xiao-Lan1,2 ; Wan, Qing-Tao1 ; Ma, Guan-Yi1,2 ; Li, Jing-Hua1 ; Fan, Jiang-Tao1
刊名	RESEARCH IN ASTRONOMY AND ASTROPHYSICS
	2016-07-01
卷号	16 期号:7
关键词	Radiowave propagation Ionospheric TEC Ionospheric height GPS observation Instrumental bias
英文摘要	We investigate the influence of assumed height for the thin shell ionosphere model on the Total Electron Content (TEC) derived from a small scale Global Positioning System (GPS) network. TEC and instrumental bias are determined by applying a grid-based algorithm to the data on several geomagnetically quiet days covering a 10 month period in 2006. Comparisons of TEC and instrumental bias are made among assumed heights from 250 km to 700 km with an interval of 10 km. While the TEC variations with time follow the same trend, TEC tends to increase with the height of the thin shell. The difference in TEC between heights 250 km and 700 km can be as large as similar to 8 TECU in both daytime and nighttime. The times at which the TEC reaches its peak or valley do not vary much with the assumed heights. The instrumental biases, especially bias from the satellite, can vary irregularly with assumed height. Several satellites show a large deviation of similar to 3 ns for heights larger than 550 km. The goodness of fit for different assumed heights is also examined. The data can be generally well-fitted for heights from 350 km to 700 km. A large deviation happens at heights lower than 350 km. Using the grid-based algorithm, there is no consensus on assumed height as related to data fitting. A thin shell height in the range 350 - 500 km can be a reasonable compromise between data fitting and peak height of the ionosphere.
收录类别	SCI
语种	英语
WOS记录号	WOS:000379555500016
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/5299]
专题	国家天文台_应用天文研究部
作者单位	1.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xiao-Lan,Wan, Qing-Tao,Ma, Guan-Yi,et al. The influence of ionospheric thin shell height on TEC retrieval from GPS observation[J]. RESEARCH IN ASTRONOMY AND ASTROPHYSICS,2016,16(7).
APA	Wang, Xiao-Lan,Wan, Qing-Tao,Ma, Guan-Yi,Li, Jing-Hua,&Fan, Jiang-Tao.(2016).The influence of ionospheric thin shell height on TEC retrieval from GPS observation.RESEARCH IN ASTRONOMY AND ASTROPHYSICS,16(7).
MLA	Wang, Xiao-Lan,et al."The influence of ionospheric thin shell height on TEC retrieval from GPS observation".RESEARCH IN ASTRONOMY AND ASTROPHYSICS 16.7(2016).