| 利用卫星高度计风速资料研究海面粗糙度 |
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| 引用本文： | 周良明,郭佩芳,王爱方.利用卫星高度计风速资料研究海面粗糙度[J].海洋通报(英文版),2006,8(1):61-67. |
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| 作者姓名： | 周良明 郭佩芳 王爱方 |
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| 作者单位： | 中国海洋大学海洋环境学院,青岛,266003 |
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| 摘 要： | 海面粗糙度对于海洋工程和海洋军事都非常重要,但对海面粗糙度的现场观测资料非常少, 这大大制约了对海面粗糙度的认识。利用 TOPEX 高度计风速资料实现了对海面粗糙度的反演,并利用 1993 年和1998 年两年的资料对西北太平洋海域的海面粗糙度进行了研究。
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| 关 键 词： | 海面粗糙度 卫星高度计 海面风速 后向散射系数 阻力系数 摩擦风速 |
| 收稿时间： | 12 15 2005 12:00AM |
Sea Surface Roughness Derivation from Wind Speed Estimated by Satellite Altimeter |
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| ZHOU Liangming,GUO Peifang,WANG Aifang.Sea Surface Roughness Derivation from Wind Speed Estimated by Satellite Altimeter[J].Marina Science Bulletin,2006,8(1):61-67. |
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| Authors: | ZHOU Liangming GUO Peifang WANG Aifang |
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| Institution: | Department of Oceanography, College of Physical and Environmental Oceanography, Ocean University of China, Qingdao 266003, China |
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| Abstract: | For open sea conditions the sea surface roughness is described as a function of surface stress and wind speed over sea surface by Charnock relation. The sea surface roughnessn in the North-west Pacific Ocean is derived successfully using wind speed data estimated by the TOPEX satellite altimeter. From the results we find that: (1) the mean sea surface roughness in winter is greater than in summer; (2) compared with other sea areas, the sea surface roughness in the sea area east of Japan ( N30°- 40°, E135°- 150°) is larger than in other sea areas; (3) sea surface roughness in the South China Sea changes more greatly than that in the Bohai Sea, Yellow Sea and East China Sea. |
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| Keywords: | Sea surface roughness satellite altimeter sea surface wind speed normalized radar cross section wind stress coefficient friction velocity |
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