学术
基于DEM的秦岭温度场模拟
莫申国[1,2] 张百平[2]
[1]重庆工商大学旅游学院,重庆400067 [2]中国科学院地理科学与资源研究所资源与环境信息系统国家重点实验室,北京100101
摘 要:
摘要：考虑到秦岭地形对温度场的影响因素，以主分水岭为界分为南北两部分，在普通插值的基础上，采用一种基于DEM的辅助插值方法，同时考虑秦岭南北坡坡向的差异，对秦岭的温度场进行了模拟。采用气象观测站点数据和格网精度为100m的DEM数据，利用GIS空间分析方法，模拟了秦岭的温度场，并对模拟结果进行了交叉验证分析。实验表明，基于DEM的秦岭温度场模拟，结果较精确地反映秦岭山地的温度场分布特征，同时验证了秦岭对南北气温具有明显的分异作用和气候效应。[著者文摘]
文章出处:
《山地学报》-2007年25卷4期 -406-411页
栏目信息:
文献标识码:
A
文章编号:
1008-2786-（2007）4-406-06
Simulation of Temperature Fields Based on DEM in Qinling Mts.
MO Shenguo,ZHANG Baiping（1. Tourism College, Chongqing Technology and Business University, Chongqing 400067, China; 2. LREIS, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China）
Abstract:
Qinling Mts. , middle-altitude mountains in central China, is an important climate borderline of the North and the South in China. Many climate simulation methods based on terrain are studied to simulate mountain climate fields by former researchers and can help to temperature fields＇ simulation of Qinling Mts. Considering the influent factor of landforms on temperature fields and the aspect differences on northern and southern slopes alone the ridge o of Ordinary K_riging interpolation f Qinling Mts. , the DEM-Aided spatial interpolation method is applied on the basis method and the temperature fields of Qinling Mts. are simulated. Based on the data of meteorological observation stations and the DEM data with the grid precision of 100 × 100 meters, this paper simulates the temperature fields of Qinling Mts. by GIS spatial analysis methods, and the cross validation is adopted to simulation results. The report indicates that the simulation results of temperature fields of Qinling Mts. based on DEM are perfect, the prediction errors precision are rational, and the results reflect accurately the temperature distribution features of Qinling Mts. , which indicates that Qinling Mts. time, the simulation of temperature fields has proved that mate effects on both sides of Qinling Mts. is an important climate borderline in China. At the same Qinling Mts. has evident climate differentiational and climate effects on both sides of Qinling Mts.[著者文摘]
Key words:
Qinling Mts. ; DEM-Aided spatial interpolation method; temperature field; simulation
基金资助:
基金项目：国家自然科学基金项目（40571010）资助
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