Application of HuTVeC Hydrological Model to Two Malaysian Watersheds

HuTVeC, an acronym for Humid Tropical Vegetation and Climate hydrological model was developed by Amjad Nabi in 1997. This model includes the plant leaf dependent parameters such as the leaf area index, light extinction coefficient, canopy storage coefficient, etc., which are controlled by the vegeta...

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Main Author:	Choong, Wee Kang
Format:	Thesis
Language:	English English
Published:	2000
Subjects:	Watersheds Hydrologic models
Online Access:	http://psasir.upm.edu.my/id/eprint/10454/1/FK_2000_2.pdf
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id	my-upm-ir.10454
record_format	uketd_dc
spelling	my-upm-ir.104542024-03-27T07:09:55Z Application of HuTVeC Hydrological Model to Two Malaysian Watersheds 2000-02 Choong, Wee Kang HuTVeC, an acronym for Humid Tropical Vegetation and Climate hydrological model was developed by Amjad Nabi in 1997. This model includes the plant leaf dependent parameters such as the leaf area index, light extinction coefficient, canopy storage coefficient, etc., which are controlled by the vegetation type. The output of this model are the daily evapotranspiration, canopy storage and streamflow. The input data required for this model includes daily rainfall, minimum and maximum temperatures, minimum and maximum relative humidity and sunshine hours. Daily streamflow data is also required for model calibration and validation. Application of HuTVeC model was carried out in a 66 square kilometre Trolak watershed using continuous five-year data from 1982 to 1986. For model application to a bigger watershed, Tanjung Malim watershed with watershed area of 186 square kilometres was selected using continuous five-year data from 1988 to 1992. The results of the model application show that HuTVeC model underestimated the streamflow in both watersheds with up to 38.5% underestimation for Trolak watershed and up to 50.8% underestimation for Tanjung Malim watershed. From the analyses, these underestimated streamflow were due to overstated canopy interception by up to 5% and overstated transpiration of up to 9%. Better results were obtained when the maximum rainfall was used in place of average rainfall in the watershed. It is also found that if the ratio of modelled canopy interception to rainfall and the ratio of modelled transpiration to rainfall were maintained below 20% and 40% respectively, the modelled results were deemed acceptable. The study also found that HuTVeC model is able to produce annual streamflow for planning purposes with more than 60% probability that the modelled annual flow and observed annual are having the same mean with good correlation between monthly modelled flow and observed flow. Watersheds Hydrologic models 2000-02 Thesis http://psasir.upm.edu.my/id/eprint/10454/ http://psasir.upm.edu.my/id/eprint/10454/1/FK_2000_2.pdf text en public masters Universiti Putra Malaysia Watersheds Hydrologic models Faculty of Engineering Mohd Soom, Mohd Amin English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
advisor	Mohd Soom, Mohd Amin
topic	Watersheds Hydrologic models
spellingShingle	Watersheds Hydrologic models Choong, Wee Kang Application of HuTVeC Hydrological Model to Two Malaysian Watersheds
description	HuTVeC, an acronym for Humid Tropical Vegetation and Climate hydrological model was developed by Amjad Nabi in 1997. This model includes the plant leaf dependent parameters such as the leaf area index, light extinction coefficient, canopy storage coefficient, etc., which are controlled by the vegetation type. The output of this model are the daily evapotranspiration, canopy storage and streamflow. The input data required for this model includes daily rainfall, minimum and maximum temperatures, minimum and maximum relative humidity and sunshine hours. Daily streamflow data is also required for model calibration and validation. Application of HuTVeC model was carried out in a 66 square kilometre Trolak watershed using continuous five-year data from 1982 to 1986. For model application to a bigger watershed, Tanjung Malim watershed with watershed area of 186 square kilometres was selected using continuous five-year data from 1988 to 1992. The results of the model application show that HuTVeC model underestimated the streamflow in both watersheds with up to 38.5% underestimation for Trolak watershed and up to 50.8% underestimation for Tanjung Malim watershed. From the analyses, these underestimated streamflow were due to overstated canopy interception by up to 5% and overstated transpiration of up to 9%. Better results were obtained when the maximum rainfall was used in place of average rainfall in the watershed. It is also found that if the ratio of modelled canopy interception to rainfall and the ratio of modelled transpiration to rainfall were maintained below 20% and 40% respectively, the modelled results were deemed acceptable. The study also found that HuTVeC model is able to produce annual streamflow for planning purposes with more than 60% probability that the modelled annual flow and observed annual are having the same mean with good correlation between monthly modelled flow and observed flow.
format	Thesis
qualification_level	Master's degree
author	Choong, Wee Kang
author_facet	Choong, Wee Kang
author_sort	Choong, Wee Kang
title	Application of HuTVeC Hydrological Model to Two Malaysian Watersheds
title_short	Application of HuTVeC Hydrological Model to Two Malaysian Watersheds
title_full	Application of HuTVeC Hydrological Model to Two Malaysian Watersheds
title_fullStr	Application of HuTVeC Hydrological Model to Two Malaysian Watersheds
title_full_unstemmed	Application of HuTVeC Hydrological Model to Two Malaysian Watersheds
title_sort	application of hutvec hydrological model to two malaysian watersheds
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Engineering
publishDate	2000
url	http://psasir.upm.edu.my/id/eprint/10454/1/FK_2000_2.pdf
_version_	1804888539411775488

Application of HuTVeC Hydrological Model to Two Malaysian Watersheds

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