An asymmetry correction method for ionospheric radio occultation

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）

	An asymmetry correction method for ionospheric radio occultation
	Wu, Xiaocheng 1,3; Hu, Xiong 1; Gong, Xiaoyan 1,3; Zhang, Xunxie 2; Wang, Xin 1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2009-03-17
卷号	114
通讯作者	Wu, XC (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, 1 Nanertiao, Beijing 100190, Peoples R China.
英文摘要	The approximation of spherical symmetry of electron density is the main error source in the inversion of ionospheric radio occultation (IRO). The study in this paper shows that only even terms of the asymmetry contribute to the inversion error. An asymmetry factor for IRO is defined, and it is approximately equal to the relative error of the inversion result. The characteristics of the asymmetry factor are studied and are shown in the following: (1) the absolute value of asymmetry factor (AVAF) of a zonal occultation is much smaller than that of the meridian one; (2) higher solar activity corresponds to larger AVAF; (3) AVAF is largest in winter, second largest in equinox season, and smallest in summer; and (4) generally, AVAF at middle geomagnetic latitudes is smaller than at other latitudes, and it is large at the magnetic equator, the crest region, and the middle-latitude trough. The asymmetry factor is applied to correct the retrieved electron density, and the inversion error is greatly reduced.
WOS标题词	Science & Technology ; Physical Sciences
类目[WOS]	Astronomy & Astrophysics
研究领域[WOS]	Astronomy & Astrophysics
关键词[WOS]	ELECTRON-DENSITY PROFILES ; GLOBAL POSITIONING SYSTEM ; ABEL INVERSION ; CHAMP ; MODEL ; IMPROVEMENT ; VALIDATION ; ATMOSPHERE
收录类别	SCI
语种	英语
WOS记录号	WOS:000264441100001
内容类型	期刊论文
源URL	[http://ir.wipm.ac.cn/handle/112942/2253]
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, Ctr Space Sci & Appl Res, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Wuhan Inst Phys & Math, Wuhan 430071, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Wu, Xiaocheng,Hu, Xiong,Gong, Xiaoyan,et al. An asymmetry correction method for ionospheric radio occultation[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2009,114.
APA	Wu, Xiaocheng,Hu, Xiong,Gong, Xiaoyan,Zhang, Xunxie,&Wang, Xin.(2009).An asymmetry correction method for ionospheric radio occultation.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,114.
MLA	Wu, Xiaocheng,et al."An asymmetry correction method for ionospheric radio occultation".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 114(2009).