Significant Wave Height Estimation from Space-Borne Cyclone-GNSS Reflectometry

doi:10.3390/rs11050584

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	Significant Wave Height Estimation from Space-Borne Cyclone-GNSS Reflectometry
	Peng, Qin 1,3; Jin, Shuanggen 2,3
刊名	REMOTE SENSING
	2019-03-01
卷号	11 期号:5 页码:13
关键词	significant wave height delayed Doppler map signal-to-noise ratio Cyclone-GNSS Global Navigation Satellite System-Reflectometry
ISSN号	2072-4292
DOI	10.3390/rs11050584
英文摘要	The significant wave height (SWH) of the sea is an important parameter and plays an important role in the prediction of waves and ocean dynamics. However, traditional methods, e.g., buoys or traditional remote sensing techniques such as X-band radar image have small measurement range and high cost. Recently, Global Navigation Satellite System-Reflectometry (GNSS-R) has provided a new opportunity to estimate the SWH, especially the space-borne Cyclone-GNSS (CYGNSS) launched on December 15, 2016. The GNSS-R uses the GNSS-reflected signal received by the receiver to invert ground physical parameters with all-weather, global fast coverage, high resolution, high precision, high long-term stability, rich signal sources, passive detection, and strong concealment. In this paper, the global ocean significant wave height is estimated using space-borne CYGNSS GNSS-R data for the first time though the relationship between the square root of the signal-to-noise ratio (SNR) data of CYGNSS delayed Doppler map (DDM) and the SWH. Then, the estimated significant wave height is compared with the satellite altimeter and buoy data. Compared with the AVISO SWH observation, the standard deviation value reaches 0.3080 m and the correlation coefficient reaches 0.9473 m. The correlation coefficient with the buoy SWH observation is 0.9539 m and the standard deviation is 0.2761 m. The SWH estimations from CYGNSS can provide important support in ocean shipping development, marine environmental protection, marine disaster warning and forecasting.
资助项目	National Key R&D Program of China[2017YFB0502800] ; National Key R&D Program of China[2017YFB0502802] ; Chinese Academy of Sciences Pilot A Special Project[XDA23040100] ; Chinese Academy of Sciences Pilot A Special Project[XDA23040102] ; Aerospace Pre-research Technology Project[30508020214] ; Jiangsu Province Distinguished Professor Project[R2018T20] ; Startup Foundation for Introducing Talent of NUIST
WOS研究方向	Remote Sensing
语种	英语
出版者	MDPI
WOS记录号	WOS:000462544500112
内容类型	期刊论文
源URL	[http://119.78.226.72/handle/331011/31835]
专题	中国科学院上海天文台
通讯作者	Jin, Shuanggen
作者单位	1.Shanghai Univ, Sch Commun & Informat Engn, Shanghai 200444, Peoples R China 2.Nanjing Univ Informat Sci & Technol, Sch Remote Sensing & Geomat Engn, Nanjing 210044, Jiangsu, Peoples R China 3.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China
推荐引用方式 GB/T 7714	Peng, Qin,Jin, Shuanggen. Significant Wave Height Estimation from Space-Borne Cyclone-GNSS Reflectometry[J]. REMOTE SENSING,2019,11(5):13.
APA	Peng, Qin,&Jin, Shuanggen.(2019).Significant Wave Height Estimation from Space-Borne Cyclone-GNSS Reflectometry.REMOTE SENSING,11(5),13.
MLA	Peng, Qin,et al."Significant Wave Height Estimation from Space-Borne Cyclone-GNSS Reflectometry".REMOTE SENSING 11.5(2019):13.