First Ionospheric Radio-Occultation Measurements From GNSS Occultation Sounder on the Chinese Feng-Yun 3C Satellite

doi:10.1109/TGRS.2016.2546978

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院地球与行星物理重点实验室

	First Ionospheric Radio-Occultation Measurements From GNSS Occultation Sounder on the Chinese Feng-Yun 3C Satellite
	Mao, Tian 1; Sun, Lingfeng 2; Yang, Guanglin 1,3,4; Yue, Xinan 5; Yu, Tao 1,6; Huang, Cong 1; Zeng, Zhongchao 1; Wang, Yungang 1; Wang, Jingsong 1
刊名	IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
	2016-09-01
卷号	54 期号:9 页码:5044-5053
关键词	Feng-Yun 3C (FY3C)/Global Navigation Satellite System (GNSS) Occultation Sounder (GNOS) ionosonde radio occultation (RO)
DOI	10.1109/TGRS.2016.2546978
文献子类	Article
英文摘要	The Global Navigation Satellite System Occultation Sounder (GNOS) has been planned for the five Feng-Yun 3 series (FY3) weather satellites since 2013, the first of which, the FY3C satellite, was launched successfully at 03:07 UTC on September 23, 2013 from the Taiyuan Satellite Base, Shanxi province, China, into the orbit of 836-km altitude and 98.75 degrees inclination. In addition to the Global Positioning System (GPS), the FY3C/GNOS is capable of tracking the occultation signal of the BeiDou Navigation Satellite System (BDS) (also called COMPASS) from space for the first time. The quality of BDS radio occultation (RO) has been verified in terms of signal-to-noise ratio. In this paper, the electron density profiles (EDPs) observed by FY3C/GNOS from both GPS RO and BDS RO, which were processed and archived in the National Satellite Meteorological Center of China Meteorological Administration, are compared with 32 globally distributed ionosonde observations, and then, we compare GPS RO EDPs with ionosonde observations at Mohe (52.0 degrees N, 122.5 degrees E), Beijing (40.3 degrees N, 116.2 degrees E), Wuhan (31.0 degrees N, 114.5 degrees E), and Sanya (18.3 degrees N, 109.6 degrees E). FY3C/GNOS EDPs show good agreement with ionosonde measurements, with larger discrepancies near the equatorial ionization anomaly region at Wuhan and Sanya. The ionospheric peak density (NmF2) and peak height (hmF2) derived from FY3C/GNOS EDPs are also compared with those obtained from the globally distributed ionosondes for the day of year 274-365 in 2013. In general, NmF2 and hmF2 have a higher correlation coefficient in the middle-high latitude than in the lower latitude region, due to the difference of ionospheric horizontal inhomogeneity. We also compared the NmF2 and hmF2 maps between FY3C/GNOS and the International Reference Ionosphere 2012 (IRI-2012) model. However, the wavenumber-4 structure, which can be indicated clearly from FY3C/GNOS observations, could not be reproduced well by IRI-2012. Further investigations show that the nighttime EDPs have obvious ionization enhancement around the ionospheric E layer over the Aurora and the South Atlantic Anomaly regions due to the energetic particle precipitation indicated by the Space Environment Monitor observations onboard FY3C.
WOS关键词	ELECTRON-DENSITY PROFILES ; GLOBAL POSITIONING SYSTEM ; IONOSONDE MEASUREMENTS ; EARTHS ATMOSPHERE ; VALIDATION ; REGION ; EQUATORIAL ; SIMULATION ; LATITUDE
WOS研究方向	Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
WOS记录号	WOS:000382689300003
资助机构	National High-tech R&D Program of China (863 Program)(2014AA123503) ; National High-tech R&D Program of China (863 Program)(2014AA123503) ; Natural Science Foundation of China(41574178) ; Natural Science Foundation of China(41574178) ; National High-tech R&D Program of China (863 Program)(2014AA123503) ; National High-tech R&D Program of China (863 Program)(2014AA123503) ; Natural Science Foundation of China(41574178) ; Natural Science Foundation of China(41574178)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53324]
专题	地质与地球物理研究所_中国科学院地球与行星物理重点实验室
作者单位	1.China Meteorol Adm, Natl Ctr Space Weather, Key Lab Space Weather, Beijing 100081, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China 3.Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100080, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Univ Corp Atmospher Res, COSMIC Program Off, Boulder, CO 80301 USA 6.China Univ Geosci, Wuhan 430000, Peoples R China
推荐引用方式 GB/T 7714	Mao, Tian,Sun, Lingfeng,Yang, Guanglin,et al. First Ionospheric Radio-Occultation Measurements From GNSS Occultation Sounder on the Chinese Feng-Yun 3C Satellite[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2016,54(9):5044-5053.
APA	Mao, Tian.,Sun, Lingfeng.,Yang, Guanglin.,Yue, Xinan.,Yu, Tao.,...&Wang, Jingsong.(2016).First Ionospheric Radio-Occultation Measurements From GNSS Occultation Sounder on the Chinese Feng-Yun 3C Satellite.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,54(9),5044-5053.
MLA	Mao, Tian,et al."First Ionospheric Radio-Occultation Measurements From GNSS Occultation Sounder on the Chinese Feng-Yun 3C Satellite".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING 54.9(2016):5044-5053.