网格DEM剖面方法获取岷江上游层状地貌参数  

Acquisition Parameters of Stratified Reliefs by Grid DEM Profiles Method on the Upper Minjiang

作　　者：张军龙[1] 任金卫[1] 徐岳仁[1] 陈长云[1] 

机构地区：[1]中国地震局地震预测研究所,北京市复兴路63号100036

出　　处：《武汉大学学报（信息科学版）》2013年第11期1378-1382,共5页Geomatics and Information Science of Wuhan University

基　　金：地震预测研究所基本科研业务经费资助项目(02092437);国家973计划资助项目(2008CB425701)

摘　　要：针对连续层状地貌序列空间数据较难获取的现状,提出通过网格化统计高精度DEM剖面,进而提取层状地貌序列空间数据的原理和方法,并以川西岷江上游为例进行验证。在研究区,等间隔提取垂直于河流流向的DEM剖面,以10m×50m的单位网格统计DEM剖面中层状地貌序列的分布,并进行野外层状地貌调查和DGPS剖面验证,最终确定层状地貌序列的垂向分布形态。实验验证了此方法的可行性。With the development of neotectonics, quantitative research on stratified reliefs is required when evaluating vertical uplift movement. In order to solve these problems,a sys- tem of stratified relief data acquisition method is proposed and tested on the upper Minjiang River, China. In the research zone, the vertical spatial data of stratified relief was acquired by using a unit grid to analyze the distribution of reliefs in the DEM profiles, which are perpendicu- lar to the river. A field survey and DGPS profile verified the availability of this method.

关 键 词：网格 数字高程模型 层状地貌 岷江上游 

分 类 号：P208[天文地球—地图制图学与地理信息工程] P51[天文地球—测绘科学与技术]