| 几个典型台风路径的同化试验 |
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| 引用本文： | 蔡其发,黄思训,项杰,兰伟仁.几个典型台风路径的同化试验[J].海洋通报(英文版),2006,8(2):75-82. |
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| 作者姓名： | 蔡其发 黄思训 项杰 兰伟仁 |
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| 作者单位： | 解放军理工大学气象学院,江苏,南京,211101;总参气象水文中心,北京,100081;解放军理工大学气象学院,江苏,南京,211101;总参气象水文中心,北京,100081 |
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| 摘 要： | 从上海台风所的台风路径统计动力预报模型SD-90出发,利用变分同化方法结合反问题正则化思想和最优控制技巧(而非统计方法),反演出台风所受到的除科氏力以外所有力的合力及台风的初始速度,用实际台风定位资料分析不同的正则化参数及最优控制参数的组合对同化结果的影响,分析不同路径特征台风路径的拟合效果。该方法具有模式简单、应用资料少、拟合精度高等优点,为台风路径的预报提供了新的思路。
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| 关 键 词： | 台风路径 变分同化 正则化方法 最优控制 |
| 收稿时间： | 04 11 2006 12:00AM |
Some Trials of Typical Typhoon Tracks Using the Adjoint Method |
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| CAI Qifa,HUANG Sixun,XIANG Jie,LAN Weiren.Some Trials of Typical Typhoon Tracks Using the Adjoint Method[J].Marina Science Bulletin,2006,8(2):75-82. |
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| Authors: | CAI Qifa HUANG Sixun XIANG Jie LAN Weiren |
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| Institution: | 1. Meteorological College, PLA University of Science and Technology, Nanjing 211101, Jangsu, China; 2. Hydrometeorological Center of the Headquarters of General Staff, Bejiing 100081, China |
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| Abstract: | In this paper, the adjoint method is applied to the statistical-dynamic model (SD-90) for the prediction of typhoon tracks along with the regularization thinking and optimal control techniques. The adjoint model and the gradient of objective function are deduced with the continual model respectively. For 4 typical typhoons, the forces and the initial velocity can be retrieved well, and the tracks of these typhoons are accurately fitted for an appropriate regularization parameter and optimal control parameter. |
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| Keywords: | typhoon tracks variational assimilation regularization methods optimal control |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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