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Measurement of longitudinal dispersion in streams and its application using a water quality model

QUAL2E is one of the most widely used water quality model for watershed and stream management. It is capable of estimating the wasteload allocation or total maximum daily load (TMDL) for a given stream or river. The predictive equations used in QUAL2E were developed in United States and England; the...

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Main Authors: Te, Shu Harn, Mohamed, Maketab
Format: Conference or Workshop Item
Language:English
Published: 2003
Subjects:
T Technology (General)
Online Access:http://eprints.utm.my/id/eprint/5226/1/TeShuHarn2003_MeasurementOfLongitudinalDispersionInSreams.pdf
http://eprints.utm.my/id/eprint/5226/
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spelling my.utm.52262010-06-01T15:27:47Z http://eprints.utm.my/id/eprint/5226/ Measurement of longitudinal dispersion in streams and its application using a water quality model Te, Shu Harn Mohamed, Maketab T Technology (General) QUAL2E is one of the most widely used water quality model for watershed and stream management. It is capable of estimating the wasteload allocation or total maximum daily load (TMDL) for a given stream or river. The predictive equations used in QUAL2E were developed in United States and England; therefore, the applicability of QUAL2E in Malaysia with different climatological and geological conditions needs to be studied. In modeling, the accuracy of simulation is highly dependent upon the accuracy of empirical coefficients used, such as longitudinal dispersion. In this study, a water quality model upstream of Tebrau River was calibrated. The accuracy of the use of default dispersion constant, K (dimensionless), in water quality model (QUAL2E), for predicting the longitudinal dispersion effect of stream was examined. Longitudinal dispersion coefficients also calculated from predictive equations. Finally, an error analysis was conducted to compare the standard error (SE) of model outputs resulted from different longitudinal dispersion coefficients and evaluated which method gave the best result. 2003 Conference or Workshop Item PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/5226/1/TeShuHarn2003_MeasurementOfLongitudinalDispersionInSreams.pdf Te, Shu Harn and Mohamed, Maketab (2003) Measurement of longitudinal dispersion in streams and its application using a water quality model. In: Seminar Kebangsaan Pengurusan Persekitaran 2003, 8-9 Julai 2003, Universiti Kebangsaan Malaysia, Bangi, Selangor. (Submitted)
institution Universiti Teknologi Malaysia
building UTM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Malaysia
content_source UTM Institutional Repository
url_provider http://eprints.utm.my/
language English
topic T Technology (General)
spellingShingle T Technology (General)
Te, Shu Harn
Mohamed, Maketab
Measurement of longitudinal dispersion in streams and its application using a water quality model
description QUAL2E is one of the most widely used water quality model for watershed and stream management. It is capable of estimating the wasteload allocation or total maximum daily load (TMDL) for a given stream or river. The predictive equations used in QUAL2E were developed in United States and England; therefore, the applicability of QUAL2E in Malaysia with different climatological and geological conditions needs to be studied. In modeling, the accuracy of simulation is highly dependent upon the accuracy of empirical coefficients used, such as longitudinal dispersion. In this study, a water quality model upstream of Tebrau River was calibrated. The accuracy of the use of default dispersion constant, K (dimensionless), in water quality model (QUAL2E), for predicting the longitudinal dispersion effect of stream was examined. Longitudinal dispersion coefficients also calculated from predictive equations. Finally, an error analysis was conducted to compare the standard error (SE) of model outputs resulted from different longitudinal dispersion coefficients and evaluated which method gave the best result.
format Conference or Workshop Item
author Te, Shu Harn
Mohamed, Maketab
author_facet Te, Shu Harn
Mohamed, Maketab
author_sort Te, Shu Harn
title Measurement of longitudinal dispersion in streams and its application using a water quality model
title_short Measurement of longitudinal dispersion in streams and its application using a water quality model
title_full Measurement of longitudinal dispersion in streams and its application using a water quality model
title_fullStr Measurement of longitudinal dispersion in streams and its application using a water quality model
title_full_unstemmed Measurement of longitudinal dispersion in streams and its application using a water quality model
title_sort measurement of longitudinal dispersion in streams and its application using a water quality model
publishDate 2003
url http://eprints.utm.my/id/eprint/5226/1/TeShuHarn2003_MeasurementOfLongitudinalDispersionInSreams.pdf
http://eprints.utm.my/id/eprint/5226/
_version_ 1643644265390145536
score 13.211869

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