SLOPE LENGTH CALCULATIONS FROM A DEM WITHIN ARC/INFO GRID

被引：85

作者：

HICKEY, R ^{[1
]}

SMITH, A ^{[1
]}

JANKOWSKI, P ^{[1
]}

机构：

[1] UNIV IDAHO,DEPT GEOG,MOSCOW,ID 83843

来源：

COMPUTERS ENVIRONMENT AND URBAN SYSTEMS | 1994年 / 18卷 / 05期

关键词：

D O I：

10.1016/0198-9715(94)90017-5

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

The Universal Soil Loss Equation has been used for a number of years to predict soil erosion rates. One of the required inputs to this model is the cumulative downhill slope length. Calculation of this factor has been the largest problem in using the USLE. The only necessary data for this calculation is a digital elevation model (DEM). DEMs have been available for years and are frequently used within Geographical Information Systems (GIS), but until recently the GIS software has not been robust enough to support the necessary calculations. This paper describes a method for calculating cumulative downhill slope length from a digital elevation model within the ARC/INFO GRID raster system.

引用

页码：365 / 380

页数：16