西安理工大学学报2012，Vol.28Issue(2)：127-131,5.
DEM数据分辨率对黑河金盆水库流域地形参数提取的影响分析
An Analysis of Terrain Parameters Extraction in Heihejinpen Reservoir Basin Affected by DEM Data Resolution
摘要
Abstract
Based on the different resolutions digital elevation model (DEM) data in Heihe Jinpen reservoir basin in Shaanxi Province, the mathematical statistical method is adopted to analyze the impact of changes in the DEM data resolution on the basin topographic parameters extracted so as to provide a reference for the establishment of the choice of DEM data resolution in distributed watershed hydrological model in this paper. The results obtained from analyzing different resolutions DEM data in the basin indicate: With the decrease in resolution of the DEM data, there appears to have decreasing tendency in basin roughness value, the maximum slope and average slope value, the maximum elevation value, the maximum and minimum absolute value of plane and profile curvature, the minimum elevation trends to increase; there will be a larger change in the slope direction when the DEM resolution drops to a certain extent, and the topographic index range tend to be more concentrated.关键词
数字高程模型/分辨率/地形参数/黑河金盆水库Key words
digital elevation model (DEM) / resolution/ terrain parameters/ Heihe Jinpen Reservoir分类
天文与地球科学引用本文复制引用
李抗彬,沈冰,李智录..DEM数据分辨率对黑河金盆水库流域地形参数提取的影响分析[J].西安理工大学学报,2012,28(2):127-131,5.基金项目
国家自然科学基金资助项目(50939004). （50939004）
