| 变分法和卫星云图模式识别在强降水面雨量预报中的应用 |
| |
| 引用本文： | 王登炎,李德俊,金琪.变分法和卫星云图模式识别在强降水面雨量预报中的应用[J].气象,2003,29(3):20-22. |
| |
| 作者姓名： | 王登炎 李德俊 金琪 |
| |
| 作者单位： | 武汉中心气象台,430074 |
| |
| 基金项目： | 中国气象局三峡气象保障服务项目资助 |
| |
| 摘 要： | 假设数值预报对雨量的落区预报是准确的，用卫星云图模式识别预报的流域雨量极值，应用变分法对数值预报雨量极值进行订正，使得订正预报与未订正场之间的泛函达最小，从而求得预报场。试验证明，该方法对强降水面雨量预报的准确率较数值预报有一定提高。
|
| 关 键 词： | 卫星云图 模式识别 变分法 强降水面雨量预报 数值预报 |
Application of Variation Method and Pattern Recognition ofSatellite Image to Forecasting of Heavy Area Rainfall overthe Upper Reaches of Changjiang River. |
| |
| Wang Dengyan,Li Dejun,Jinqi.Application of Variation Method and Pattern Recognition ofSatellite Image to Forecasting of Heavy Area Rainfall overthe Upper Reaches of Changjiang River.[J].Meteorological Monthly,2003,29(3):20-22. |
| |
| Authors: | Wang Dengyan Li Dejun Jinqi |
| |
| Abstract: | Under the condition of assumption that it is correct of area rainfall forecasting of NWP, pattern recognition method of satellite image is used to forecast maximum heavy rainfall and correct maximum rain of MAPS. Variation method has been used to get minimum of objective function between correct field and incorrect field. The forecast tests showed that the methods have advanced accuracy of heavy area rainfall forecasting. |
| |
| Keywords: | satellite image pattern recognition variation method forecasting of heavy area rainfall |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《气象》浏览原始摘要信息 |
| 点击此处可从《气象》下载免费的PDF全文 |
