起伏地形下重庆降水精细的空间分布  

Fine Spatial Distribution of Precipitation on Chongqing Rugged Terrain

作　　者：陆忠艳[1] 马力[2] 缪启龙[1] 代强[2] 王扬锋[3] 

机构地区：[1]南京信息工程大学空间信息科学系 [2]重庆市气象局,重庆400039 [3]中国气象局沈阳大气环境研究所,辽宁沈阳110016

出　　处：《南京气象学院学报》2006年第3期408-412,共5页Journal of Nanjing Institute of Meteorology

基　　金：国家重点基础研究发展规划项目(G19990436-01G20000779)

摘　　要：采用重庆地区34个气象观测站1971—2000年30 a平均月降水总量资料,以及重庆地区100 m×100 m DEM(D igital E levation Model)数据,对重庆地区降水空间分布进行研究。根据山地气候学原理,利用GIS(Geographical Information Systems)软件,分析降水空间分布的影响因子,建立平均月降水量空间估算模型,计算了平均月降水量的空间分布。结果表明:随着海拔高度的增加,降水量逐渐增加;各月降水量的最大值出现在东北山区;降水量的季节变化明显。Based on the 1971-2000 monthly precipitation data observed at 34 meteorological stations in the Chongqing region and the 100 m ×100 m DEM（ Digital Elevation Model） of Chongqing, the spatial distribution of precipitation of Chongqing was studied. In light of the principles of mountain climatology and using GIS （ Geographical Information Systems ） technology, the factors affecting the spatial distribution of precipitation were analyzed, the model to simulate the spatial distribution of averaged monthly precipita- tion was established, and the spatial distribution of averaged monthly precipitation was computed. The resuits show that the precipitation increased with the elevation, and the maximum value of monthly precipitation appeared in the northeast mountainous region;and the seasonal change of precipitation in Chongqing was distinctive.

关 键 词：降水 GIS(Geographical INFORMATION Systems) 空间分布 重庆 

分 类 号：P426.6[天文地球—大气科学及气象学]