摘要
本文根据降水随海拔高度变化的不同参数，对山区地形方位进行分区，在分区的基础上，建立山区雨量推算方程，推算平均相对误差为２．０３％，然后利用小网格点法，推算华北山区年降水量分布和最大降水高度。
According to the variation of different parameters of rainfall with height,14 sub-regions in the North China mountainous regions are divided. A study on relations between variation of rainfall and geographical parameters is made. A regression equation is expressed as follows:Pi=a(0i)+a(1i)ψ+a(2i)λ+a(3i)hWhere Pi is rainfall calculated,a(0i)is a constant,a(1i),a(2i),a(3i) are the partial correlation coefficients,ψis latitude,λis longitude, h is the height above sea level.The average error for calculation is 2. 03% and the maximum average error is 4. 61%.Making a calculation for every 10' of latitude and longitude and substituting h for λ and ψ in the equation above,we can calculate the rainfall and the maximum rainfall height in a specified sub-region.
出处
《地理学报》
CSSCI
CSCD
北大核心
1996年第2期164-171,共8页
Acta Geographica Sinica
