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Journal of Environmental Hydrology
ISSN 1058-3912 |
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Electronic Journal of the International Association for
Environmental Hydrology
JEH Volume 20 (2012), Paper 8 Posted May 23, 2012 GIS-BASED RIVER BASIN FLOOD MODELLING USING HEC-HMS AND MIKE11 - KAYU ARA RIVER BASIN, MALAYSIA
Sina Alaghmand1 2Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran ABSTRACT River flood modelling comprises three main components as follows: hydrological modelling, hydraulic modelling and river flood visualization in a geographic information system (GIS). In this research, HEC-HMS and MIKE11 were utilized as hydrological and hydraulic models which were linked to a GIS environment using HEC-GeoHMS and MIKE11GIS extensions. In this procedure, firstly, the rainfall-runoff simulation is conducted to generate the design flood hydrographs which are used as input for the hydraulic model with boundary or initial conditions. Then, according to design hydrographs, hydraulic modelling is performed for defined scenarios. GIS is used to visualize the results of the hydraulic model. The primary results visualized consist of flood extent and flood depth maps. These maps are the basic requirement for preparing the river flood hazard and river flood risk maps. Reference: Alaghmand, S., R. bin Abdullah, I. Abustan, Md Said, M.A., and B. Vosoogh. 2012. GIS-Based river basin flood modelling using HEC-HMS and MIKE11 - Kayu Ara River Basin, Malaysia. Journal of Environmental Hydrology, Vol. 20, Paper 8. CONTACT: Sina Alaghmand H2-19, CWMR Mawson Lakes Campus University of South Australia 5095 SA Adelaide, Australia E-mail: sina.alaghmand@mymail.unisa.edu.au |
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