| The comparison of altimeter retrieval algorithms of the wind speed and the wave period |
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| 作者姓名： | ZHAO Dongliang LI Shuiqing SONG Chaoyang |
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| 作者单位： | Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, ChinaReceived 26 June 2011 |
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| 基金项目： | The National Natural Science Foundation of China under contract Nos 41076007 and 40676014; the National Basic Research Program of China under contract No. 2009CB421201; the Program of Introducing Talents of Discipline to Universities of China under contract No. B07036. |
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| 摘 要： | With the launch of altimeter,much effort has been made to develop algorithms on the wind speed and the wave period.By using a large data set of collocated altimeter and buoy measurements,the typical wind speed and wave period algorithms are validated.Based on theoretical argument and the concept of wave age,a semi-empirical algorithm for the wave period is also proposed,which has the wave-period dimension,and explicitly demonstrates the relationships between the wave period and the other variables.It is found that Ku and C band data should be applied simultaneously in order to improve either wind speed or wave period algorithms.The dual-band algorithms proposed by Chen et al.(2002) for the wind speed and Quilfen et al.(2004) for the wave period perform best in terms of a root mean square error in the practical applications.
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| 关 键 词： | altimeter wind speed wave period wave age significant wave height |
| 收稿时间： | 2011/6/26 0:00:00 |
| 修稿时间： | 2011/12/16 0:00:00 |
The comparison of altimeter retrieval algorithms of the wind speed and the wave period |
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| ZHAO Dongliang,LI Shuiqing,SONG Chaoyang.The comparison of altimeter retrieval algorithms of the wind speed and the wave period[J].Acta Oceanologica Sinica,2012,31(3):1-9. |
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| Authors: | ZHAO Dongliang LI Shuiqing and SONG Chaoyang |
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| Institution: | Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China;Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China;Physical Oceanography Laboratory, Ocean University of China, Qingdao 266100, China |
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| Abstract: | With the launch of altimeter, much effort has been made to develop algorithms on the wind speed and the wave period. By using a large data set of collocated altimeter and buoy measurements, the typical wind speed and wave period algorithms are validated. Based on theoretical argument and the concept of wave age, a semi-empirical algorithm for the wave period is also proposed, which has the wave-period dimension, and explicitly demonstrates the relationships between the wave period and the other variables. It is found that Ku and C band data should be applied simultaneously in order to improve either wind speed or wave period algorithms. The dual-band algorithms proposed by Chen et al. (2002) for the wind speed and Quilfen et al. (2004) for the wave period perform best in terms of a root mean square error in the practical applications. |
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| Keywords: | altimeter wind speed wave period wave age significant wave height |
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