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The first quantitative remote sensing of ocean internal waves by Chinese GF-3 SAR satellite 被引量:6
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作者 YANG Jingsong WANG Juan REN Lin 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2017年第1期118-118,共1页
Quantitative analysis and retrieval is given by the State Key Laboratory of Satellite Ocean Environment Dynamics(SOED),Second Institute of Oceanography(SIO),State Oceanic Administration(SOA),China,from the first... Quantitative analysis and retrieval is given by the State Key Laboratory of Satellite Ocean Environment Dynamics(SOED),Second Institute of Oceanography(SIO),State Oceanic Administration(SOA),China,from the first batch of GF-3 synthetic aperture radar(SAR)data with ocean internal wave features in the Yellow Sea. 展开更多
关键词 SAR The first quantitative remote sensing of ocean internal waves by Chinese gf-3 SAR satellite GF
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Overview of Chinese First C Band Multi-Polarization SAR Satellite GF-3 被引量:7
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作者 ZHANG Qingjun LIU Yadong 《Aerospace China》 2017年第3期22-31,共10页
The GF-3 satellite, the first C band and multi-polarization Synthetic Aperture Radar(SAR) satellite in China, achieved breakthroughs in a number of key technologies such as multi-polarization and the design of a multi... The GF-3 satellite, the first C band and multi-polarization Synthetic Aperture Radar(SAR) satellite in China, achieved breakthroughs in a number of key technologies such as multi-polarization and the design of a multiimaging mode, a multi-polarization phased array SAR antenna, and in internal calibration technology. The satellite technology adopted the principle of "Demand Pulls, Technology Pushes", creating a series of innovation firsts, reaching or surpassing the technical specifications of an international level. 展开更多
关键词 gf-3 satellite system design APPLICATION
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Chinese GF-1 and GF-3 satellites observed the giant iceberg calving off the Larsen C Ice Shelf 被引量:1
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作者 SHI Lijian WANG Qimao +1 位作者 ZENG Tao LIANG Chao 《Acta Oceanologica Sinica》 SCIE CAS CSCD 2017年第11期115-115,共1页
A massive iceberg, named A-68 by National Ice Center (NIC) officially, calved away from the Larsen C Ice Shelf in Antarctica on luly 12, 2017. The iceberg A-68 is about 5 800 km2, weighs more than a trillion tons an... A massive iceberg, named A-68 by National Ice Center (NIC) officially, calved away from the Larsen C Ice Shelf in Antarctica on luly 12, 2017. The iceberg A-68 is about 5 800 km2, weighs more than a trillion tons and it is one of the biggest ever recorded icebergs. Chinese satellites Gaofen-1 (GF-1) and Gaofen-3 (GF-3) data was used to monitoring the propagation of the rift and the iceberg by National Satellite Ocean Application Service (NSOAS). 展开更多
关键词 GF SAR Chinese gf-1 and gf-3 satellites observed the giant iceberg calving off the Larsen C Ice Shelf Figure
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GF-3 Satellite Put into Operation
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作者 CUI Enhui 《Aerospace China》 2017年第1期61-61,共1页
GF-3,China’s first C-band Synthetic Aperture Radar(SAR)satellite with multiple polarizations,has been put into use from January 23.The SAR-C satellite has a 1 m resolution.CNSA Deputy Director WU Yanhua and CASC Vice... GF-3,China’s first C-band Synthetic Aperture Radar(SAR)satellite with multiple polarizations,has been put into use from January 23.The SAR-C satellite has a 1 m resolution.CNSA Deputy Director WU Yanhua and CASC Vice President YANG Baohua attended the ceremony for the commencement of formal operation of GF-3.GF-3 is the first LEO remote sens- 展开更多
关键词 CASC gf-3 satellite Put into Operation
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Evaluation of wave retrieval for Chinese Gaofen-3 synthetic aperture radar 被引量:2
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作者 Weizeng Shao Xingwei Jiang +3 位作者 Zhanfeng Sun Yuyi Hu Armando Marino Youguang Zhang 《Geo-Spatial Information Science》 SCIE EI CSCD 2022年第2期229-243,共15页
The goal of this study was to investigate the performance of a spectral-transformation wave retrieval algorithm and confirm the accuracy of wave retrieval from C-band Chinese Gaofen-3(GF-3)Synthetic Aperture Radar(SAR... The goal of this study was to investigate the performance of a spectral-transformation wave retrieval algorithm and confirm the accuracy of wave retrieval from C-band Chinese Gaofen-3(GF-3)Synthetic Aperture Radar(SAR)images.More than 200 GF-3 SAR images of the coastal China Sea and the Japan Sea for dates from January to July 2020 were acquired in the Quad-Polarization Strip(QPS)mode.The images had a swath of 30 km and a spatial resolution of 8 m pixel size.They were processed to retrieve Significant Wave Height(SWH),which is simulated from a numerical wave model called Simulating WAves Nearshore(SWAN).The first-guess spectrum is essential to the accuracy of Synthetic Aperture Radar(SAR)wave spectrum retrieval.Therefore,we proposed a wave retrieval scheme combining the theocratic-based Max Planck Institute Algorithm(MPI),a Semi-Parametric Retrieval Algorithm(SPRA),and the Parameterized First-guess Spectrum Method(PFSM),in which a full wave-number spectrum and a non-empirical ocean spectrum proposed by Elfouhaily are applied.The PFSM can be driven using the wind speed without calculating the dominant wave phase speed.Wind speeds were retrieved using a Vertical-Vertical(VV)polarized geophysical model function C-SARMOD2.The proposed algorithm was implemented for all collected SAR images.A comparison of SAR-derived wind speeds with European Center for Medium-Range Weather Forecasts(ECMWF)ERA-5 data showed a 1.95 m/s Root-Mean-Squared Error(RMSE).The comparison of retrieved SWH with SWAN-simulated results demonstrated a 0.47 m RMSE,which is less than the 0.68 m RMSE of SWH when using the PFSM algorithm. 展开更多
关键词 Wave retrieval gaofen-3(gf-3) Synthetic Aperture Radar(SAR)
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