Sea Surface Wind Speed Retrieval From TerraSAR-X HH Polarization Data Using an Improved Polarization Ratio Model

doi:10.1109/JSTARS.2016.2590475

	Sea Surface Wind Speed Retrieval From TerraSAR-X HH Polarization Data Using an Improved Polarization Ratio Model
	Shao, Weizeng 1; Zhang, Zheng 1; Li, Xiaoming 2; Wang, Weili 3
刊名	IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING
	2016-11
卷号	9 期号:11 页码:4991-4997
关键词	Polarization ratio (PR) TerraSAR-X wind speed
ISSN号	1939-1404
DOI	10.1109/JSTARS.2016.2590475
英文摘要	The purpose of this study was to improve the accuracy of sea surface wind retrieval from the X-band spaceborne synthetic aperture radar (SAR) TerraSAR-X (TS-X) and TanDEM-X (TD-X) data in horizontal-horizontal (HH) polarization. Geophysical model functions (GMFs), e.g., XMOD1, XMOD2, and SIRX-MOD were developed for X-band SAR data in vertical-vertical (VV) polarization to retrieve sea surface wind fields. To date, the polarization ratio model for X-band SAR (XPR), which is only dependent on incidence angle, has only been available for sea surface wind retrieval from TS-X HH polarization images, in conjunction with an X-band GMF. In our previous study, it was found that the polarization ratio of TS-X dual-polarization data showed a particular relationship with sea surface wind speed. Therefore, in this study, we propose an improved X-band polarization ratio model, herein called XPR2, which is dependent on both incidence angle and sea surface wind speed. The XPR2 was tuned through 56 TS-X/TD-X dual-polarization (HH and VV polarization) images and the collocated European Centre for Medium-Range Weather Forecasts reanalysis wind data. The model was further validated by comparing the retrieved sea surface wind speed from another 38 TS-X HH polarization images against in situ buoy measurements. The comparison shows a root mean square error (RMSE) of 1.79 m/s and a bias of 0.68 m/s, which is better than the results achieved using the existing XPR with an RMSE of 2.31 m/s and a bias of 0.93 m/s.
资助项目	Ocean Public Welfare Scientific Research Project of State Oceanic Administration[201305032]
WOS关键词	SYNTHETIC-APERTURE RADAR ; C-BAND ; MICROWAVE BACKSCATTERING ; ERS-1 SATELLITE ; CROSS-SECTION ; 2-SCALE MODEL ; OCEAN SURFACE ; SAR IMAGES ; SCATTEROMETRY ; FIELD
WOS研究方向	Engineering ; Physical Geography ; Remote Sensing ; Imaging Science & Photographic Technology
语种	英语
出版者	IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
WOS记录号	WOS:000388871500011
内容类型	期刊论文
源URL	[http://ir.fio.com.cn:8080/handle/2SI8HI0U/24942]
专题	自然资源部第一海洋研究所
通讯作者	Shao, Weizeng
作者单位	1.Zhejiang Ocean Univ, Marine Acoust & Remote Sensing Lab, Zhoushan 316000, Peoples R China 2.Chinese Acad Sci, Inst Remote Sensing & Digital Earth, Beijing 100049, Peoples R China 3.State Ocean Adm, North China Sea Marine Forecasting Ctr, Shangdong Prov Key Lab Marine Ecol & Environm & D, Qingdao 266100, Peoples R China
推荐引用方式 GB/T 7714	Shao, Weizeng,Zhang, Zheng,Li, Xiaoming,et al. Sea Surface Wind Speed Retrieval From TerraSAR-X HH Polarization Data Using an Improved Polarization Ratio Model[J]. IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,2016,9(11):4991-4997.
APA	Shao, Weizeng,Zhang, Zheng,Li, Xiaoming,&Wang, Weili.(2016).Sea Surface Wind Speed Retrieval From TerraSAR-X HH Polarization Data Using an Improved Polarization Ratio Model.IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING,9(11),4991-4997.
MLA	Shao, Weizeng,et al."Sea Surface Wind Speed Retrieval From TerraSAR-X HH Polarization Data Using an Improved Polarization Ratio Model".IEEE JOURNAL OF SELECTED TOPICS IN APPLIED EARTH OBSERVATIONS AND REMOTE SENSING 9.11(2016):4991-4997.