Study on ocean wind vector retrieval from ERS-2 SAR image
文献类型：期刊论文
| 作者 | Chen Yan-Ling; Huang Cheng; Ding Xiao-Li; Li Zhi-Wei |
| 刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
 |
| 出版日期 | 2007-11-01 |
| 卷号 | 50期号:6页码:1688-1694 |
| 关键词 | synthetic aperture radar wind vector spectrum analysis wind direction ambiguity CMOD4 |
| 英文摘要 | SAR (Synthetic Aperture Radar) wind retrieval is a hot research topic in current Remote Sensing field. In this paper the principle of space borne SAR ocean wind retrieval and three related retrieval algorithms are introduced firstly. Then, the flowchart of the retrieval procedures is provided. As an example,ERS-2 SAR image covering Hong Kong region acquired on May 7, 2002 is used for wind vector retrieval. The classic SAR Wind Direction Algorithm - spectral method is improved, and applied for the retrieval. The wind direction thus estimated is however with 180 degrees ambiguity. Buoy data collected by the Hong Kong Observatory are then used to resolve the uncertainty. Finally, the GMF (Geophysical Model Function) - CMOD4 is adopted to estimate the wind speed at the height of 10m above sea level. Compared with the data recorded by Hong Kong Observatory, the error in the wind direction and average wind speed are very small. The results show that accurate ADC (Analog to Digital Converter) compensation and image calibration, together with improved SWDA and CMOD4 algorithms, could offer high quality wind vector. |
| WOS标题词 | Science & Technology ; Physical Sciences |
| 类目[WOS] | Geochemistry & Geophysics |
| 研究领域[WOS] | Geochemistry & Geophysics |
| 关键词[WOS] | SYNTHETIC-APERTURE RADAR |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000251343600008 |
| 源URL | [http://119.78.226.72/handle/331011/19423]  |
| 专题 | 上海天文台_天文地球动力学研究中心 |
| 作者单位 | 1.Chinese Acad Sci, Shanghai Astron Observ, Shanghai 200030, Peoples R China 2.Grad Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Hong Kong Polytech Univ, Dept Land Surveying & Geoinformat, Hong Kong, Hong Kong, Peoples R China |
| 推荐引用方式 GB/T 7714 | Chen Yan-Ling,Huang Cheng,Ding Xiao-Li,et al. Study on ocean wind vector retrieval from ERS-2 SAR image[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2007,50(6):1688-1694. |
| APA | Chen Yan-Ling,Huang Cheng,Ding Xiao-Li,&Li Zhi-Wei.(2007).Study on ocean wind vector retrieval from ERS-2 SAR image.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,50(6),1688-1694. |
| MLA | Chen Yan-Ling,et al."Study on ocean wind vector retrieval from ERS-2 SAR image".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 50.6(2007):1688-1694. |
入库方式： OAI收割
来源：上海天文台
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