| CORRECTION OF ASYMMETRIC STRENGTHENING OF QUIKSCAT WIND FIELD AND ASSIMILATION APPLICATION IN TYPHOON SIMULATION |
| |
| 作者姓名： | 王亮 陆汉城 潘晓滨 张云 |
| |
| 作者单位： | Mesoscale Meteorology Research Centre, Institute of Meteorology, PLA University of Science and
Technology;Department of MilitaryMeteorology, PLA University of Science
and Technology;Department of MilitaryMeteorology, PLA University of Science
and Technology;Department of MilitaryMeteorology, PLA University of Science
and Technology |
| |
| 基金项目： | National Key Fundamental Research and Development Plan of China (2004CB418301)；Natural Science Foundation of China (40830958) |
| |
| 摘 要： | As an approach to the technological problem that the wind data of QuikSCAT scatterometer
cannot accurately describe the zone of typhoon-level strong wind speed, some objective factors such as the
typhoon moving speed, direction and friction are introduced in this study to construct the asymmetric
strengthening of the QuikSCAT wind field. Then by adopting a technology of four-dimensional data
assimilation, an experiment that includes both the assimilation and forecasting phases is designed to
simulate Typhoon Rananim numerically. The results show that with model constraints and adjustment, this
technology can incorporate the QuikSCAT wind data to the entire column of the model atmosphere,
improve greatly the simulating effects of the whole-column wind, pressure field and the track as well as the
simulated typhoon intensity covered by the forecast phase, and work positively for the forecasting of
landfall locations.
|
| 关 键 词： | 四维数据同化 台风级 不对称 模拟 风场 应用 校正 移动速度 |
CORRECTION OF ASYMMETRIC STRENGTHENING OF QUIKSCAT WIND FIELD AND ASSIMILATION APPLICATION IN TYPHOON SIMULATION |
| |
| 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,2009,15(1):78-82. |
| |
| Authors: | WANG Liang LU Han-cheng PAN Xiao-bin and ZHANG Yun |
| |
| Institution: | 1. Mesoscale Meteorology Research Centre,Institute of Meteorology,PLA University of Science and Technology,Nanjing 211101 China
2. Department of Military Meteorology,PLA University of Science and Technology,Nanjing 211101 China |
| |
| Abstract: | As an approach to the technological problem that the wind data of QuikSCAT scatterometer
cannot accurately describe the zone of typhoon-level strong wind speed, some objective factors such as the
typhoon moving speed, direction and friction are introduced in this study to construct the asymmetric
strengthening of the QuikSCAT wind field. Then by adopting a technology of four-dimensional data
assimilation, an experiment that includes both the assimilation and forecasting phases is designed to
simulate Typhoon Rananim numerically. The results show that with model constraints and adjustment, this
technology can incorporate the QuikSCAT wind data to the entire column of the model atmosphere,
improve greatly the simulating effects of the whole-column wind, pressure field and the track as well as the
simulated typhoon intensity covered by the forecast phase, and work positively for the forecasting of
landfall locations. |
| |
| Keywords: | Numerical simulation typhoon forecast data assimilation QuikSCAT wind field asymmetricbogus model |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《热带气象学报(英文版)》浏览原始摘要信息 |
| 点击此处可从《热带气象学报(英文版)》下载免费的PDF全文 |
