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Simulation of flood risk area in Kelantan watershed, Malaysia using numerical model

Flood events have recently increased and caused extensive damages to the agricultural area and infrastructures, despite enormous efforts to decrease this hazard. Modeling of runoff can be a suitable approach to determine the effective factors in flooding, and to explore reasonable solution and thus...

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Main Authors: Ghorbani, Karim, Wayayok, Aimrun, Abdullah, Ahmad Fikri
Format: Article
Language:English
Published: UTM Press 2016
Online Access:http://psasir.upm.edu.my/id/eprint/53821/1/Simulation%20of%20flood%20risk%20area%20in%20Kelantan%20watershed%2C%20Malaysia%20using%20numerical%20model.pdf
http://psasir.upm.edu.my/id/eprint/53821/
http://www.jurnalteknologi.utm.my/index.php/jurnalteknologi/article/view/7260
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spelling my.upm.eprints.538212018-02-06T06:12:04Z http://psasir.upm.edu.my/id/eprint/53821/ Simulation of flood risk area in Kelantan watershed, Malaysia using numerical model Ghorbani, Karim Wayayok, Aimrun Abdullah, Ahmad Fikri Flood events have recently increased and caused extensive damages to the agricultural area and infrastructures, despite enormous efforts to decrease this hazard. Modeling of runoff can be a suitable approach to determine the effective factors in flooding, and to explore reasonable solution and thus to be able reduce hazard on watersheds. The current work attempted to derive basin and sub-basins, stream network, aspect, slop and all relevant physiographic parameters of Kelantan watershed in order to estimate depth of runoff using DEM data , satellite images and field study. In addition, the maximum rainfall intensity of all the meteorological stations were extracted and the interpolation of the values obtained, led to derive a contour map as rainfall intensity for the watershed. Soil Conservation Service (SCS) model was employed to calculate the surface flows, and to derive the flood hydrograph for all the sub-basins at the return periods of 5,10,25,50,100, considering to the Curve Number (CN) is a function of land use, soil, and primary moisture content. HEC-HMs model was calibrated for the study area using observed storm rainfall and recorded floods at the number of hydrometric stations. A good agreement was obtained between simulated and observed data with a correlation of 82%. Calibrated model was used to simulate depth of runoff in different return period that led to derive flood risk maps for Kelantan watershed. Results obtained revealed that flooding could be moderated and managed within a number of the sub - basins through implementing a technical scheme, depending on characteristic of the sub- basin, and its effect on the flood peak. UTM Press 2016 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/53821/1/Simulation%20of%20flood%20risk%20area%20in%20Kelantan%20watershed%2C%20Malaysia%20using%20numerical%20model.pdf Ghorbani, Karim and Wayayok, Aimrun and Abdullah, Ahmad Fikri (2016) Simulation of flood risk area in Kelantan watershed, Malaysia using numerical model. Jurnal Teknologi, 78 (1-2). pp. 51-57. ISSN 0127–9696; ESSN: 2180–3722 http://www.jurnalteknologi.utm.my/index.php/jurnalteknologi/article/view/7260
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Flood events have recently increased and caused extensive damages to the agricultural area and infrastructures, despite enormous efforts to decrease this hazard. Modeling of runoff can be a suitable approach to determine the effective factors in flooding, and to explore reasonable solution and thus to be able reduce hazard on watersheds. The current work attempted to derive basin and sub-basins, stream network, aspect, slop and all relevant physiographic parameters of Kelantan watershed in order to estimate depth of runoff using DEM data , satellite images and field study. In addition, the maximum rainfall intensity of all the meteorological stations were extracted and the interpolation of the values obtained, led to derive a contour map as rainfall intensity for the watershed. Soil Conservation Service (SCS) model was employed to calculate the surface flows, and to derive the flood hydrograph for all the sub-basins at the return periods of 5,10,25,50,100, considering to the Curve Number (CN) is a function of land use, soil, and primary moisture content. HEC-HMs model was calibrated for the study area using observed storm rainfall and recorded floods at the number of hydrometric stations. A good agreement was obtained between simulated and observed data with a correlation of 82%. Calibrated model was used to simulate depth of runoff in different return period that led to derive flood risk maps for Kelantan watershed. Results obtained revealed that flooding could be moderated and managed within a number of the sub - basins through implementing a technical scheme, depending on characteristic of the sub- basin, and its effect on the flood peak.
format Article
author Ghorbani, Karim
Wayayok, Aimrun
Abdullah, Ahmad Fikri
spellingShingle Ghorbani, Karim
Wayayok, Aimrun
Abdullah, Ahmad Fikri
Simulation of flood risk area in Kelantan watershed, Malaysia using numerical model
author_facet Ghorbani, Karim
Wayayok, Aimrun
Abdullah, Ahmad Fikri
author_sort Ghorbani, Karim
title Simulation of flood risk area in Kelantan watershed, Malaysia using numerical model
title_short Simulation of flood risk area in Kelantan watershed, Malaysia using numerical model
title_full Simulation of flood risk area in Kelantan watershed, Malaysia using numerical model
title_fullStr Simulation of flood risk area in Kelantan watershed, Malaysia using numerical model
title_full_unstemmed Simulation of flood risk area in Kelantan watershed, Malaysia using numerical model
title_sort simulation of flood risk area in kelantan watershed, malaysia using numerical model
publisher UTM Press
publishDate 2016
url http://psasir.upm.edu.my/id/eprint/53821/1/Simulation%20of%20flood%20risk%20area%20in%20Kelantan%20watershed%2C%20Malaysia%20using%20numerical%20model.pdf
http://psasir.upm.edu.my/id/eprint/53821/
http://www.jurnalteknologi.utm.my/index.php/jurnalteknologi/article/view/7260
_version_ 1643835495775469568
score 13.211869

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