Validation of significant wave height retrieval from co-polarization Chinese Gaofen-3 SAR imagery using an improved algorithm
文献类型：CNKI期刊论文
| 作者 | SHENG Yexin; SHAO Weizeng; ZHU Shuai; SUN Jian; YUAN Xinzhe; LI Shuiqing; SHI Jian; ZUO Juncheng |
| 发表日期 | 2018-06-15 |
| 出处 | Acta Oceanologica Sinica
 |
| 关键词 | Gaofen-3 synthetic aperture radar significant wave height |
| 英文摘要 | Chinese Gaofen-3(GF-3) is the first civilian satellite to carry C-band(5.3 GHz) synthetic aperture radar(SAR).During the period of August 2016 to December 2017, 1 523 GF-3 SAR images acquired in quad-polarization(vertical-vertical(VV), horizontal-horizontal(HH), vertical-horizontal(VH), and horizontal-vertical(HV)) mode were recorded, mostly around China's seas. In our previous study, the root mean square error(RMSE) of significant wave height(SWH) was found to be around 0.58 m when compared with retrieval results from a few GF-3 SAR images in co-polarization(VV and HH) with moored measurements by using an empirical algorithm CSAR_WAVE. We collected a number of sub-scenes from these 1 523 images in the co-polarization channel,which were collocated with wind and SWH data from the European Centre for Medium-Range Weather Forecasts(ECMWF) reanalysis field at a 0.125° grid. Through the collected dataset, an improved empirical wave retrieval algorithm for GF-3 SAR in co-polarization was tuned, herein denoted as CSAR_WAVE2. An additional 92 GF-3 SAR images were implemented in order to validate CSAR_WAVE2 against SWH from altimeter Jason-2, showing an about 0.52 m RMSE of SWH for co-polarization GF-3 SAR. Therefore, we conclude that the proposed empirical algorithm has a good performance for wave retrieval from GF-3 SAR images in co-polarization. |
| 文献子类 | CNKI期刊论文 |
| 资助机构 | The National Key Research and Development Program of China under contract Nos 2016YFC1401905 and2017YFA0604901 ; the National Natural Science Foundation of China under contract Nos 41776183,41676014,41606024 and 41506033 ; the National Social Science Foundation of China under contract No.15ZDB170 |
| 卷 | v.37期:06页:5-14 |
| 语种 | 英文; |
| 分类号 | P715.7 |
| ISSN号 | 0253-505X |
| 源URL | [http://ir.qdio.ac.cn/handle/337002/188896]  |
| 专题 | 中国科学院海洋研究所 |
| 作者单位 | 1.PhysicalOceanographyLaboratory/CIMST,OceanUniversityofChinaandQingdaoNationalLaboratoryforMarineScienceandTechnology 2.NationalSatelliteOceanApplicationServiceStateOceanicAdministration 3.InstituteofOceanology,ChineseAcademyofSciences 4.MarineScienceandTechnologyCollege,ZhejiangOceanUniversity 5.LaboratoryforOceanDynamicsandClimate,QingdaoNationalLaboratoryforMarineScienceandTechnology 6.CollegeofMeteorologyandOceanography,NationalUniversityofDefenseTechnology |
| 推荐引用方式 GB/T 7714 | SHENG Yexin,SHAO Weizeng,ZHU Shuai,et al. Validation of significant wave height retrieval from co-polarization Chinese Gaofen-3 SAR imagery using an improved algorithm. 2018. |
入库方式： OAI收割
来源：海洋研究所
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