【摘要】 本文利用粤北石灰岩地区气象站和水文站有关的降水资料、经纬度资料和海拔高度资料进行了统计分析，建立了该区域１、４、７、１０月和年降水量的推算模式。经统计检验，效果显著。与此同时，利用这些推算模式，以经纬度５′×５′为网格点，计算出该区域每一格点上相应的降水量，并经过宏观地形效应订正后，制作出１、４、７、１０月和年的小网格降水量分布图，其与常规雨量分布图比较，更能客观地反映出地形条件对降水量分布的影响。更多还原

【Abstract】 Based on the data of rainfall, longitude and latitude, and the elevation above sea level in North Guangdong a model for calculating yearly rainfall and monthly rainfall of January,April, July and October is developed in this paper. Using the model, the corresponding rainfall is calculated in each grid point of 5′×5′longitude and latitude, and the scattered chart for the rainfall in each grid POint is also made after macrotopography correction.更多还原