人民长江Issue(21)：30-32,61,4.
基于 DEM 的鄱阳湖水下地形分析
Underwater topography analysis of Poyang Lake by DEM
摘要
Abstract
In this paper,by using digital topographic nap at a 1:10000 scale of Poyang Lake,the lake underwater DEM(dig-ital elevation nodel)with 5n horizontal resolution is established. According to the nodel,by applying spatial analyst of inforna-tion systen,the topographic indexes of underwater topographic sections are abstracted and the slope,terrain,slope gradient,sur-face roughness are generated. Based on the analysis data,the curved surface areas and storages under different water levels are calculated and the underwater topographic characteristics are analyzed. The calculation results can provide a basis for water re-sources project planning and water disaster control in the lake region.关键词
水下DEM/地形分析/鄱阳湖Key words
underwater DEM/topographic analysis/Poyang Lake分类
建筑与水利引用本文复制引用
许小华,雷声,王小笑,章重..基于 DEM 的鄱阳湖水下地形分析[J].人民长江,2014,(21):30-32,61,4.基金项目
水利部公益性项目“鄱阳湖流域生态调度研究” （）
