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| 海浪成长状态对TOPEX/Poseidon高度计风速反演的影响 | |
| 引用本文： | 程永存,刘玉光,徐青,宗海波,文凡.海浪成长状态对TOPEX/Poseidon高度计风速反演的影响[J].海洋通报,2007,26(5):11-16. |
| 作者姓名： | 程永存 刘玉光 徐青 宗海波 文凡 |
| 作者单位： | 1. 解放军理工大学气象学院,江苏,南京,211101;中国海洋大学物理海洋实验室,山东,青岛,266003 2. 中国海洋大学物理海洋实验室,山东,青岛,266003 3. 中国海洋大学物理海洋实验室,山东,青岛,266003;香港中文大学太空与地球信息科学研究所,香港 |
| 基金项目： | 国家高技术研究发展计划(863计划) , 中国海洋大学校科研和教改项目 |
| 摘 要： | 以墨西哥湾同步高度计、浮标资料为例,研究了海浪成长状态对高度计风速反演的影响。同步的高度计风速和浮标风速比较显示,在墨西哥湾地区,海浪成长状态对高度计风速反演有较大影响。在考虑海浪成长状态影响的条件下,利用谱模型反演高度计风速,取得了较好的效果。与目前TOPEX/Poseidon高度计风速反演业务化算法相比,在海浪未充分成长条件下,考虑海浪成长状态影响后,根据谱模型反演获得的风速与浮标风速之间的均方根误差减小了30%,平均误差减小了83%。在利用谱模型算法反演高度计风速时,谱模型中的波龄因子(表示海浪成长状态)可以根据高度计测得的有效波高和风速获得,因此该方法具有广泛的适用性。 |
| 关 键 词： | 海浪成长状态 TOPEX/Poseidon 算法 墨西哥湾 |
| 文章编号： | 1001-6932（2007）05-0011-0006 |
| 修稿时间： | 2006-06-25 |
Effects of the Wave State on TOPEX/Poseidon Altimeter for Retrieving Winds |
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| CHENG Yongcun,LIU Yuguang,XU Qing,ZONG Haibo,WEN Fan.Effects of the Wave State on TOPEX/Poseidon Altimeter for Retrieving Winds[J].Marine Science Bulletin,2007,26(5):11-16. | |
| Authors: | CHENG Yongcun LIU Yuguang XU Qing ZONG Haibo WEN Fan |
| Institution: | 1. Institute of Meteorology, PLA University of Science and Technology, Nanjing 211101, Jiangsu, China; 2. Physical Oceanography Laboratory,Ocean University of China, Qingdao 266003, Shandong, China; 3. Institute of Space and Earth Information Science, The Chinese University of Hong Kong, Shatin, N.T., Hong Kong |
| Abstract: | The effects of the wave state on the altimeter wind speed retrieval are investigated based on the observations in the Gulf of Mexico. The comparison between measurements from the altimeter and buoys shows that the wave state has significant effects on the altimeter wind speed retrieval. After considering the effects of the wave state, the altimeter winds speed is retrieved more accurately with a new wind wave spectrum model. Compared with the wind speed retrieval algorithm in the operational use for TOPEX/Poseidon altimeter, after the effects of the wind state are included in the analytical algorithm, the root-mean-square difference and the averaged bias between retrieved altimeter wind speeds and buoy observations are 30 % and 83 % less, respectively. The wave age factor which denotes the wave state can be calculated from altimeter measured Hs and U10 ( from algorithm in the operational use for TOPEX/Poseidon altimeter ). Thus, the analytical algorithm proposed in this study has a comprehensive applicability. |
| Keywords: | wave state TOPEX/Poseidon algorithm Gulf of Mexico |
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