The role of remote sensing in hydrological modelling of the Okavango Delta, Botswana

被引：34

作者：

Milzow, Christian ^{[1
]}

Kgotlhang, Lesego ^{[1
,2
]}

Kinzelbach, Wolfgang ^{[1
]}

Meier, Philipp ^{[1
]}

Bauer-Gottwein, Peter ^{[3
]}

机构：

[1] ETH, Inst Environm Engn, CH-8093 Zurich, Switzerland

[2] Dept Water Affairs, Gaborone, Botswana

[3] Tech Univ Denmark, Dept Environm Engn, DK-2800 Lyngby, Denmark

来源：

JOURNAL OF ENVIRONMENTAL MANAGEMENT | 2009年 / 90卷 / 07期

基金：

瑞士国家科学基金会;

关键词：

Okavango Delta; Integrated hydrological modelling; Surface water-groundwater interaction; Remote sensing; Wetland;

D O I：

10.1016/j.jenvman.2007.06.032

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

A coupled surface water-groundwater model of the Okavango Delta has been built based on the United States Geological Survey software MODFLOW 2000 including the SFR2 package for stream-flow routing. It will provide a new tool for evaluating water management and climate change scenarios. The delta's size and limited accessibility make direct, on the ground data acquisition difficult. Remote sensing methods are the most promising source of acquiring spatially distributed data for both model input parameters and calibration. Topography, aquifer thickness, channel positions, evapotranspiration and precipitation data are all based on remote sensing. Simulated flooding patterns are compared to patterns derived from visible to thermal NOAA-AVHRR data and microwave radar ENVISAT-ASAR data. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：2252 / 2260

页数：9

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