It is a very important content of disaster prevention and reduction to describe and forecast the distribution of urban rainfall (rainstorm).
如何准确描述和预测降雨(暴雨)的空间分布，已成为城市减灾防灾的重要内容。
Two watershed hydrological models, i. e. a hydrological model considering spatial distribution of rainfall and TOPMODEL with comparatively well-developed theory are both applied to forecast flood.
在水文模型方面，分别采用一种考虑降雨空间分布的产流模型以及理论较为成熟的TOPMODEL。
Then, via building a Measure function to represent gap between forecast-rainfall and actual-rainfall. Eventually, to take minimum of the sum of distance as evaluation function.
而后，创建了一种距离函数来表征预测与实际降雨量之间的差距，最后用距离和的最小作为评价函数。
By using the life time of a certain scale echo to restrict the lead time, a forecast can be made for the rainfall at this scale, and total rainfall is obtained through composing.
根据不同尺度回波生命史来约束其预报时效，得到分尺度下的降水预报场，实现暴雨回波多尺度的合成降水量临近预报；将分尺度与不分尺度降水预报结果进行了比较。
By using the life time of a certain scale echo to restrict the lead time, a forecast can be made for the rainfall at this scale, and total rainfall is obtained through composing.
根据不同尺度回波生命史来约束其预报时效，得到分尺度下的降水预报场，实现暴雨回波多尺度的合成降水量临近预报；将分尺度与不分尺度降水预报结果进行了比较。
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