| 台风模拟中QuikSCAT风场的非对称加强订正及同化应用 |
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| 引用本文： | 王亮,陆汉城,潘晓滨,张云.台风模拟中QuikSCAT风场的非对称加强订正及同化应用[J].热带气象学报,2008,24(6):658-664. |
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| 作者姓名： | 王亮 陆汉城 潘晓滨 张云 |
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| 作者单位： | 解放军理工大学气象学院,江苏,南京,211101 |
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| 基金项目： | 国家自然科学基金资助项目
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国家重点基础研究专项经费
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| 摘 要： | 针对QuikSCAT 散射计风场资料对台风级别的强风速区还无法准确刻画这个技术问题，引入台风移速、移向、摩擦等客观因素对该风场产品资料进行非对称加强订正；然后利用四维同化技术，并设计了先同化后预报两个阶段的试验方案，对“云娜”台风进行了数值模拟试验。试验结果表明：通过模式约束调整，四维同化技术可以把QuikSCAT 海面风场资料引入到整层模式大气中，并对整层风场和气压场的强度及路径模拟都有很大的改进，而且该资料还提高了预报阶段台风强度的模拟效果，并对登陆点的预报起到了积极作用。
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| 关 键 词： | QuikSCAT风场 非对称风场订正加强 四维同化 数值模拟 |
| 收稿时间： | 7/6/2007 12:00:00 AM |
| 修稿时间： | 2007/11/8 0:00:00 |
CORRECTION OF ASYMMETRIC STRENGTHENING OF QUIKSCAT WIND FIELD AND ASSIMILATION APPLICATION IN TYPHOON SIMULATION |
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| WANG Liang,LU Han-cheng,PAN Xiao-bin and ZHANG Yun.CORRECTION OF ASYMMETRIC STRENGTHENING OF QUIKSCAT WIND FIELD AND ASSIMILATION APPLICATION IN TYPHOON SIMULATION[J].Journal of Tropical Meteorology,2008,24(6):658-664. |
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| Authors: | WANG Liang LU Han-cheng PAN Xiao-bin and ZHANG Yun |
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| Institution: | WANG Liang,LU Han-cheng,PAN Xiao-bin,ZHANG Yun(Institute of Meteorology,PLA University of Science , Technology,Nanjing 211101,China) |
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| Abstract: | Aiming at a technological problem that the wind data of QuikSCAT scatterometer cannot accurately describe the zone of typhoon-level strong wind speed,this paper introduces some objective factors such as the typhoon moving speed,direction and friction when constructing the asymmetric strengthening of the QuikSCAT wind field.Then by adopting four-dimensional data assimilation technology,the experiment including assimilation and forecasting phases is designed to simulate Typhoon Rananim numerically.The results... |
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| Keywords: | QuikSCAT wind field asymmetric strengthening correct four-dimensional data assimilation numerical simulation |
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