不规则三角网(TIN)在流域坡面汇流分析中的应用The Application of TIN in the Analysis of Water Convergingon Drainage Area Slope Surface
卢振千,吕妙儿,黄杏元
摘要(Abstract):
数字高程模型 (DEM)的地形解析能力在提取地貌特征中的应用已经十分广泛 ,流域的坡面汇流分析及径流的数字模拟工作也随之展开。但是目前分析中常用的方格网络模型、等高线网络模型和不规则三角网络模型在应用中都存在着很大的缺陷 ,因此本文提出了一种融合方格网络和等高线网络的 DEM- TIN网络模型 ,该模型具有上述三种模型的优点。同时以 DEM数据和数字线划图 (DL G)为基础 ,设计了这种模型的简易生成算法。
关键词(KeyWords): 数字高程模型;流域;不规则三角网
基金项目(Foundation):
作者(Author): 卢振千,吕妙儿,黄杏元
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