ON THE EXTRACTION OF CHANNEL NETWORKS FROM DIGITAL ELEVATION DATA

被引：816

作者：

TARBOTON, DG

BRAS, RL

RODRIGUEZ-ITURBE, I

机构：

[1] Ralph M. Parsons Laboratory, Department of Civil Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts

[2] Utah Water Research Laboratory, Utah State University

来源：

HYDROLOGICAL PROCESSES | 1991年 / 5卷 / 01期

关键词：

DRAINAGE DENSITY; DIGITAL ELEVATION MODELS; FLUVIAL GEOMORPHOLOGY; RIVER BASINS; MAPPING; CARTOGRAPHY;

D O I：

10.1002/hyp.3360050107

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

Channel networks artibtrary drainage density or resolution can be extracted from digital elevation data. However, for digital elevation data derived networks to be useful they have to be extracted at the correct length scale or drainage density. Here we suggest a criterion for determining the appropriate drainage density at which to extract networks from digital elevation data. The criterion is basically to extract the highest resolution (highest drainage density) network that satisfies scaling laws that have traditionally been found to hold for channel networks. Procedures that use this criterion are presented and tested on 21 digital elevation data sets well distributed throughout the U.S.

引用

页码：81 / 100

页数：20

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