Application of Swat Hydrological Model with GIS Interface to Upper Bernam River Basin

Rising concern over the degradation of the environment due to rapid land development in recent years has created a need for watershed modeling. The Upper Bernam River Basin in South Perak and North Selangor, Malaysia was chosen for this study. This study was carried to evaluate the effectiveness of...

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Main Author:	Lai, Sai Hin
Format:	Thesis
Language:	English English
Published:	2001
Subjects:	Hydrologic models
Online Access:	http://psasir.upm.edu.my/id/eprint/10998/1/FK_2001_26.pdf
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id	my-upm-ir.10998
record_format	uketd_dc
spelling	my-upm-ir.109982024-07-10T01:25:53Z Application of Swat Hydrological Model with GIS Interface to Upper Bernam River Basin 2001-03 Lai, Sai Hin Rising concern over the degradation of the environment due to rapid land development in recent years has created a need for watershed modeling. The Upper Bernam River Basin in South Perak and North Selangor, Malaysia was chosen for this study. This study was carried to evaluate the effectiveness of a GIS interface physically based hydrologic model (SWAT) in predicting surface runoff and sediment load from a basin scale watershed. The effects of land use changes on runoff and sediment loading rate were also studied. The data required for this study is the topographical, hydrometeorological, soil, and the land use data. All of them are integrated in a GIS in tabular, vector and grid formats. The land use data in this study were derived from Landsat TM images. These images were enhanced and classified using a combination of different classification strategies. The classified land use maps compares reasonably well with the map showing broad vegetation types of the river basin with an accuracy of 95%. Due to recent rapid land use changes, the model was run in a short term basis. The results from model application and statistical analysis show that SW AT generally does a good job in predicting both runoff flow and sediment load with a an average gap of 22% and 34% respectively between observed and predicted results. The exception is for those days with very heavy rainfall (> 35 mm/day), SWAT seriously overestimated runoff. Results from historical data, trend analysis, and calculated runoff rate and sediment loading rate due to open area have also shown the close relationship between surface runoff, sediment load and open area downstream of the upper river basin. It is found that the average increment of sediment loading rate for the study area ranges from 1.47 to 2.06 tonnes per millimeter of rainfall for each kilometer-square increase of open areas. Hydrologic models 2001-03 Thesis http://psasir.upm.edu.my/id/eprint/10998/ http://psasir.upm.edu.my/id/eprint/10998/1/FK_2001_26.pdf text en public masters Universiti Putra Malaysia 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	Hydrologic models
spellingShingle	Hydrologic models Lai, Sai Hin Application of Swat Hydrological Model with GIS Interface to Upper Bernam River Basin
description	Rising concern over the degradation of the environment due to rapid land development in recent years has created a need for watershed modeling. The Upper Bernam River Basin in South Perak and North Selangor, Malaysia was chosen for this study. This study was carried to evaluate the effectiveness of a GIS interface physically based hydrologic model (SWAT) in predicting surface runoff and sediment load from a basin scale watershed. The effects of land use changes on runoff and sediment loading rate were also studied. The data required for this study is the topographical, hydrometeorological, soil, and the land use data. All of them are integrated in a GIS in tabular, vector and grid formats. The land use data in this study were derived from Landsat TM images. These images were enhanced and classified using a combination of different classification strategies. The classified land use maps compares reasonably well with the map showing broad vegetation types of the river basin with an accuracy of 95%. Due to recent rapid land use changes, the model was run in a short term basis. The results from model application and statistical analysis show that SW AT generally does a good job in predicting both runoff flow and sediment load with a an average gap of 22% and 34% respectively between observed and predicted results. The exception is for those days with very heavy rainfall (> 35 mm/day), SWAT seriously overestimated runoff. Results from historical data, trend analysis, and calculated runoff rate and sediment loading rate due to open area have also shown the close relationship between surface runoff, sediment load and open area downstream of the upper river basin. It is found that the average increment of sediment loading rate for the study area ranges from 1.47 to 2.06 tonnes per millimeter of rainfall for each kilometer-square increase of open areas.
format	Thesis
qualification_level	Master's degree
author	Lai, Sai Hin
author_facet	Lai, Sai Hin
author_sort	Lai, Sai Hin
title	Application of Swat Hydrological Model with GIS Interface to Upper Bernam River Basin
title_short	Application of Swat Hydrological Model with GIS Interface to Upper Bernam River Basin
title_full	Application of Swat Hydrological Model with GIS Interface to Upper Bernam River Basin
title_fullStr	Application of Swat Hydrological Model with GIS Interface to Upper Bernam River Basin
title_full_unstemmed	Application of Swat Hydrological Model with GIS Interface to Upper Bernam River Basin
title_sort	application of swat hydrological model with gis interface to upper bernam river basin
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Engineering
publishDate	2001
url	http://psasir.upm.edu.my/id/eprint/10998/1/FK_2001_26.pdf
_version_	1804888606004740096

Application of Swat Hydrological Model with GIS Interface to Upper Bernam River Basin

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