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基于GIS的福建省地形分析
引用本文:陈芬,陈文惠.基于GIS的福建省地形分析[J].华东地质学院学报,2009,32(2):185-188.
作者姓名:陈芬  陈文惠
作者单位:福建师范大学地理科学学院,福建,福州,350007  
基金项目:福建省教育厅B类项目 
摘    要:数字高程模型(DEM)是DTM的一种特例,是对地球表面地形地貌的一种离散的数字表达。DEM是地理信息系统进行地形分析的基础数据。采用1:10万数字等高线数据建构30m空间分辨率格网DEM,并基于DEM进行分级,提取坡度、地形起伏度及坡度聚类,坡谱等地形分析;比较准确地表达了福建的总体地形特征,为地理分析及环境评价等提供了基础的数据。

关 键 词:DEM  地形分析  聚类分析  起伏度

Terrain Analysis Based on GIS in Fujian Province
CHEN Fen,CHEN Wen-hui.Terrain Analysis Based on GIS in Fujian Province[J].Journal of East China Geological Institute,2009,32(2):185-188.
Authors:CHEN Fen  CHEN Wen-hui
Institution:College of Geographical Science;Fujian Normal University;Fuzhou;FJ 350007;China
Abstract:The digital elevation Models (DEM) is a common method used in three dimension surface modeling. And it is also an effective tool for terrain analysis. A rectangular DEM of Fujian province is constructed using the digital contour map of 1:10000 scale. And then several indices of describing the topographic features such as slope and relief amplitude was derived from the DEM. The terrain feature of Fujian province is analyzed employing the methods include slope clustering and statistics in the end.
Keywords:DEM
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