多年平均年降水量的面积分布律

通过对全国，新疆，天山乌鲁木齐河流域三种不同区域多年平均年降水量的计算分析发现，在这三种区域里，多年平均年降水量与其占有的面积之间丰同一种函数关系－我指分布函数关系。这一关系式的得出，有助于（１）定量地描述某一气候区的降水气候状况。并且，这种对问题的提法既不太粗，也不太细，而是只提降水量为某一值的区域占有多大的比例；（３）根据河水径流深估计无雨量站区域的多年降水量和计算水文气象学中的一些参数。

The Area Distribution Law of the Mean-years Annual Precipitation

The mean years annual precipitation in three areas,the national range,Xinjiang Autonomy and the Urumchi River valley was analysed.The result shows that there is a functional relationship between the mean years annual precipitation and its area,the relationship is a negative exponential distribution.The method can be used to (1) describe quantitatively the precipitation state in a climatic region,and (2) estimate the mean years annual precipitation in the regions without rainfall station by the flow off of the river water and calculate some hydrometeorological parameters.