TOPMODEL for Streamflow Simulation of a Tropical Catchment Using Different Resolutions of ASTER DEM: Optimization Through Response Surface Methodology

The unavailability of proper hydrological data quality combined with the complexity of most physical based hydrologic models limits research on rainfall-runoff relationships, particularly in the tropics. In this paper, an attempt has been made to use different resolutions of DEM generated from freel...

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Bibliographic Details
Published inWater resources management Vol. 30; no. 9; pp. 3159 - 3173
Main Authors Suliman, Ali H. Ahmed, Katimon, Ayob, Darus, Intan Zaurah Mat, Shahid, Shamsuddin
Format Journal Article
LanguageEnglish
Published Dordrecht Springer Netherlands 01.07.2016
Springer Nature B.V
Subjects
Atmospheric Sciences
Catchments
Civil Engineering
Computer simulation
Developing countries
Earth and Environmental Science
Earth Sciences
Environment
Freshwater
Geotechnical Engineering & Applied Earth Sciences
Hydrogeology
Hydrologic models
Hydrology
Hydrology/Water Resources
LDCs
Optimization
Precipitation
Rain
Rainfall-runoff relationships
Response surface methodology
Rivers
Runoff
Simulation
Stream discharge
Stream flow
Studies
Topography
Tropical environments
Tropics
Water runoff
Water supply
Malaysia
TOPMODEL
Johor
Rantau Panjang
Tropical
ASTER
Different resolutions
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Summary:The unavailability of proper hydrological data quality combined with the complexity of most physical based hydrologic models limits research on rainfall-runoff relationships, particularly in the tropics. In this paper, an attempt has been made to use different resolutions of DEM generated from freely available 30 m-based ASTER imagery as primary input to the topographically-based hydrological (TOPMODEL) model to simulate the runoff of a medium catchment located in the tropics. Response surface methodology (RSM) was applied to optimize the most sensitive parameters for streamflow simulation. DEM resolutions from 30 to 300 m have been used to assess their effects on the topographic index distribution (TI) and TOPMODEL simulation. It is found that changing DEM resolutions reduces the TOPMODEL simulation performance as the resolutions are varied from 30 to 300 m. The study concluded that the ASTER 30 m DEM can be used for reasonable streamflow simulation of a data scarce tropical catchment compared with the resampled DEMs.
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ISSN:0920-4741
1573-1650
DOI:10.1007/s11269-016-1338-2