| A study of a new retrieval algorithm for measurement of oceanic windvectors field using satellite microwave scatterometer |
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| 作者姓名： | Lin Mingsen Sun Ying Zheng Shuqing |
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| 作者单位： | Received February 10，1997; accepted June 9，1997 |
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| 基金项目： | The project was supported by the National Natural Science Foundation of China and the Office of the State Space Leading Group. |
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| 摘 要： | ＡｓｔｕｄｙｏｆａｎｅｗｒｅｔｒｉｅｖａｌａｌｇｏｒｉｔｈｍｆｏｒｍｅａｓｕｒｅｍｅｎｔｏｆｏｃｅａｎｉｃｗｉｎｄｖｅｃｔｏｒｓｆｉｅｌｄｕｓｉｎｇｓａｔｅｌｌｉｔｅｍｉｃｒｏｗａｖｅｓｃａｔｔｅｒｏｍｅｔｅｒＬｉｎＭｉｎｇｓｅｎ，ＳｕｎＹｉｎｇ，Ｚ...
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| 关 键 词： | SASS wind retrieval wind direction alias removal scatterometer |
| 收稿时间： | 1997/2/10 0:00:00 |
| 修稿时间： | 6/9/1997 12:00:00 AM |
A study of a new retrieval algorithm for measurement of oceanic windvectors field using satellite microwave scatterometer |
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| Lin Mingsen,Sun Ying,Zheng Shuqing.A study of a new retrieval algorithm for measurement of oceanic windvectors field using satellite microwave scatterometer[J].Acta Oceanologica Sinica,1998,17(3):305-319. |
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| Authors: | Lin Mingsen Sun Ying and Zheng Shuqing |
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| Institution: | Third Institute of Oceanography, State Oceanic Administration, Xiamen 361005, China |
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| Abstract: | The Seasat-A satellite scatterometer(SASS) demonstrated very successfully that scatterometers can makeaccurate synoptic measurements of surface wind vectors field over the ocean. The technology is based on the sensitivityof microwave radar back scatter to the ocean waves in centimeter scale created by the action of the surface wind. More-over, the back scatter is anisotropic, therefore, wind speed and direction can be derived from radar measurements attwo or more different azimuths. Owing to the nonlinear nature of scatter model function and the existence of variousnoise sources in the measurements, the retrieval wind results consist of as many as four wind directions. A new algo-rithm is proposed to recover ocean wind field from the SASS normalized cross-section measurement in this paper. Comparison with those estimated from the SASS surface wind analysed by Peteherych et al . (1984) and other referencesshow agreement largely in the wind direction and more exactly in the wind speed. |
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| Keywords: | SASS wind retrieval wind direction alias removal scatterometer |
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