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| Cross-polarization geophysical model function for C-band radar backscattering from the ocean surface and wind speed retrieval | |
| Hwang, Paul A.1; Stoffelen, Ad2; van Zadelhoff, Gerd-Jan2; Perrie, William3; Zhang, Biao3,4; Li, Haiyan3,5; Shen, Hui3,6 | |
| 2015-02-01 | |
| 发表期刊 | JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS
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| 卷号 | 120期号:2页码:893-909 |
| 文章类型 | Article |
| 摘要 | The wind speed sensitivity of cross-polarization (cross-pol) radar backscattering cross section (VH) from the ocean surface increases toward high winds. The signal saturation problem of VH, if it exists, occurs at a much higher wind speed compared to the copolarization (copol: VV or HH) sea returns. These properties make VH a better choice over VV or HH for monitoring severe weather. Combined with high spatial resolution of the synthetic aperture radar (SAR), the development of hurricane wind retrieval using VH is advancing rapidly. This paper describes a cross-pol C-band radar backscattering geophysical model function (GMF) with incidence angle dependence for the full wind speed range in the available data sets (up to 56 m/s). The GMF is derived from RADARSAT-2 (R2) dual-polarization (dual-pol) ScanSAR modes with 300 and 500 km swaths. The proposed GMF is compared to other published algorithms. The result shows that the simulated VH cross section and the retrieved wind speed with the proposed GMF is in better agreement with measurements. With careful treatment of noise, the VH-retrieved wind speeds may extend to mild or moderate conditions. The higher fraction of non-Bragg contribution in VH can be exploited for analysis of surface wave breaking. |
| DOI | 10.1002/2014JC010439 |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000352154800019 |
| 引用统计 | |
| 文献类型 | 期刊论文 |
| 条目标识符 | http://ir.qdio.ac.cn/handle/337002/25452 |
| 专题 | 海洋环流与波动重点实验室 |
| 作者单位 | 1.Naval Res Lab, Remote Sensing Div, Washington, DC 20375 USA 2.Royal Netherlands Meteorol Inst, NL-3730 AE De Bilt, Netherlands 3.Fisheries & Oceans Canada, Bedford Inst Oceanog, Dartmouth, NS B2Y 4A2, Canada 4.Nanjing Univ Informat Sci & Technol, Sch Marine Sci, Nanjing, Jiangsu, Peoples R China 5.Univ Chinese Acad Sci, Chinese Acad Sci, Key Lab Computat Geodynam, Beijing, Peoples R China 6.Chinese Acad Sci, Inst Oceanol, Qingdao, Peoples R China |
| 推荐引用方式 GB/T 7714 | Hwang, Paul A.,Stoffelen, Ad,van Zadelhoff, Gerd-Jan,et al. Cross-polarization geophysical model function for C-band radar backscattering from the ocean surface and wind speed retrieval[J]. JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,2015,120(2):893-909. |
| APA | Hwang, Paul A..,Stoffelen, Ad.,van Zadelhoff, Gerd-Jan.,Perrie, William.,Zhang, Biao.,...&Shen, Hui.(2015).Cross-polarization geophysical model function for C-band radar backscattering from the ocean surface and wind speed retrieval.JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS,120(2),893-909. |
| MLA | Hwang, Paul A.,et al."Cross-polarization geophysical model function for C-band radar backscattering from the ocean surface and wind speed retrieval".JOURNAL OF GEOPHYSICAL RESEARCH-OCEANS 120.2(2015):893-909. |
| 条目包含的文件 | ||||||
| 文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
| Cross-polarization g（5743KB） | 期刊论文 | 出版稿 | 限制开放 | ODC PDDL | 浏览 | |
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