| 几种台风初始化方法及其对比实验 |
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| 引用本文： | 王益柏,费建芳,张根生.几种台风初始化方法及其对比实验[J].气象,2006,32(2):3-8. |
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| 作者姓名： | 王益柏 费建芳 张根生 |
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| 作者单位： | 解放军理工大学气象学院,南京,211101 |
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| 摘 要： | 利用中尺度MM5V3模式及其伴随系统，运用四维变分同化方法，将Bogus台风作为观测资料进而优化台风初始场，对0422号台风个例进行了数值模拟和试验，并与传统Bogus方法和Nudging方法进行比较。结果表明，经过BDA方案优化的台风初始场更加接近实际台风的结构，有效地提高了台风路径和强度预报的准确率。
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| 关 键 词： | 四维变分资料同化 台风数值模拟 牛顿松弛法 BDA方案 |
| 收稿时间： | 2005-07-13 |
| 修稿时间： | 2005-12-06 |
Three Typhoon Initialization Schemes and Comparison Experiments |
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| Wang Yibai,Fei Jianfang,Zhang Gensheng.Three Typhoon Initialization Schemes and Comparison Experiments[J].Meteorological Monthly,2006,32(2):3-8. |
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| Authors: | Wang Yibai Fei Jianfang Zhang Gensheng |
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| Abstract: | With MM5V3 and its adjoint system, the bogus vortex and the method of 4DVAR are used to generate an optimal initial condition of the typhoon Ma-on, compared with the initialization schemes of traditional Bogussing and Nudging. The results show that the optimal initial field produced by BDA scheme is closer to the observations and the forecast accuracy for both track and intensity is improved effectively. |
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| Keywords: | four-dimensional data assimilation typhoon numerical simulation Nudging BDA scheme |
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