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中文摘要: 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。
中文关键词: 卫星云图，模式识别，变分法，强降水面雨量预报
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.
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基金项目:中国气象局三峡气象保障服务项目资助
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引用文本：
王登炎,李德俊,金琪,2003.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,29(3):20-22.
,2003.Application of Variation Method and Pattern Recognition ofSatellite Image to Forecasting of Heavy Area Rainfall overthe Upper Reaches of Changjiang River.[J].Meteor Mon,29(3):20-22.
王登炎,李德俊,金琪,2003.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,29(3):20-22.
,2003.Application of Variation Method and Pattern Recognition ofSatellite Image to Forecasting of Heavy Area Rainfall overthe Upper Reaches of Changjiang River.[J].Meteor Mon,29(3):20-22.