流域面雨量的计算方法

Simple Analysis the Calculation Method of Surface Rainfall

降水的空间分布特征是影响径流模拟及一系列其他水文问题的主要控制因素,因此求得区域(流域)平均降水量就显的尤为重要。针对几种常见的区域(流域)面雨量的计算方法进行了总结,并指出雷达测雨跟传统测雨相比可以直接测出面降雨量,因此雷达测雨必然是测雨技术未来的发展方向之一。基于我国目前雨量站的资料密度远不能满足分布流域水文模型的需求,因此需要采用合适的空间插值方法。同时列举了几种插值方法,并对比了其优缺点。

Spatial distribution characteristics of precipitation is affected runoff simulation and main control factors of a series of other hydrological problems,so it is very important to get the average rainfall basin. This paper summarizes several common basin surface precipitation method,and points out that theradar rainfull measuring can be directly measured surface compared to the traditional rainfall measuringrainfall,so the radar rainfull measuring must be one of the developing direction of the future rainfall. Based on the precipitation station in date density is far cannot meet the demand of the distributed watershed hydrological model detachment,therefore we need to take the appropriate space difference method. This paper enumerates several interpolation methods and compared the advantages and disadvantages.