A GIS-based method to calculate flow accumulation by considering dams and their specific operation time

被引：43

作者：

Schaeuble, Holger ^{[1
]}

Marinoni, Oswald ^{[2
]}

Hinderer, Matthias ^{[3
]}

机构：

[1] TERRACS, D-72076 Tubingen, Germany

[2] CSIRO, Sustainable Ecosyst, St Lucia, Qld 4067, Australia

[3] Tech Univ Darmstadt, Inst Appl Geosci, D-64287 Darmstadt, Germany

来源：

COMPUTERS & GEOSCIENCES | 2008年 / 34卷 / 06期

关键词：

GIS; flow accumulation; algorithm; river basin; sediment yield; trap-efficiency;

D O I：

10.1016/j.cageo.2007.05.023

中图分类号：

TP39 [计算机的应用];

学科分类号：

081203 ; 0835 ;

摘要：

This paper presents a new approach to calculate flow accumulation with geographic information systems (GIs). It is based on the well-known D8 single-flow algorithm that is extended to consider the trap-efficiencies of dams and their specific operation time. This allows realistic calculations of flow accumulation for any time period. The new approach is not restricted to surface water runoff but can be applied to all kinds of mass fluxes like suspended or dissolved sediment load (weighted flow accumulation). To facilitate its use, two GIs extensions for ArcView and ArcGIS have been developed. This paper presents the principles of the new approach, the functionality of the extensions and gives some applications in the fields of hydrology and sedimentology. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：635 / 646

页数：12

共 25 条

[1]

[Anonymous], 2000, Dams and development: a new framework for decision-making

[2] Efficient flow computation on massive grid terrain datasets [J].