An introduction to the FY3 GNOS instrument and mountain-top tests

	An introduction to the FY3 GNOS instrument and mountain-top tests
	Bai, W. H.; Sun, Y. Q.; Du, Q. F.; Yang, G. L.; Yang, Z. D.; Zhang, P.; Bi, Y. M.; Wang, X. Y.; Cheng, C.; Han, Y.
刊名	ATMOSPHERIC MEASUREMENT TECHNIQUES
	2014
卷号	7 期号:6 页码:1817-1823
ISSN号	1867-1381
通讯作者	Bai, WH (reprint author), Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing, Peoples R China.
英文摘要	The FY3 (Feng-Yun-3) GNOS (GNSS Occultation Sounder) mission is a GNSS (Global Navigation Satellite System) radio occultation mission of China for remote sensing of Earth's neutral atmosphere and the ionosphere. GNOS will use both the global positioning system (GPS) and the Beidou navigation satellite systems on the China Feng-Yun-3 (FY3) series satellites. The first FY3-C was launched at 03:07 UTC on 23 September 2013. GNOS was developed by the Center for Space Science and Applied Research, Chinese Academy of Sciences (CSSAR). It will provide vertical profiles of atmospheric temperature, pressure, and humidity, as well as ionospheric electron density profiles on a global basis. These data will be used for numerical weather prediction, climate research, and ionospheric research and space weather. This paper describes the FY3 GNOS mission and the GNOS instrument characteristics. It presents simulation results of the number and distribution of GNOS occultation events with the regional Beidou constellation and the full GPS constellation, under the limitation of the GNOS instrument occultation channel number. This paper presents the instrument performance as derived from analysis of measurement data in laboratory and mountain-based occultation validation experiments at Mt. Wuling in Hebei Province. The mountain-based GNSS occultation validation tests show that GNOS can acquire or track low-elevation radio signal for rising or setting occultation events. The refractivity profiles of GNOS obtained during the mountain-based experiment were compared with those from radiosondes. The results show that the refractivity profiles obtained by GNOS are consistent with those from the radiosonde. The rms of the differences between the GNOS and radiosonde refractivities is less than 3%.
收录类别	SCI
语种	英语
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/4376]
专题	国家空间科学中心_空间环境部
推荐引用方式 GB/T 7714	Bai, W. H.,Sun, Y. Q.,Du, Q. F.,et al. An introduction to the FY3 GNOS instrument and mountain-top tests[J]. ATMOSPHERIC MEASUREMENT TECHNIQUES,2014,7(6):1817-1823.
APA	Bai, W. H..,Sun, Y. Q..,Du, Q. F..,Yang, G. L..,Yang, Z. D..,...&Han, Y..(2014).An introduction to the FY3 GNOS instrument and mountain-top tests.ATMOSPHERIC MEASUREMENT TECHNIQUES,7(6),1817-1823.
MLA	Bai, W. H.,et al."An introduction to the FY3 GNOS instrument and mountain-top tests".ATMOSPHERIC MEASUREMENT TECHNIQUES 7.6(2014):1817-1823.