Prediction of Salinity Intrusion in the Sheltered Estuary of Terengganu River in Malaysia using 1-D Empirical Intrusion Model

Generally one dimensional (1-D) empirical salinity intrusion model is limited to natural alluvial estuary. However, this study attempts to investigate its ability to model a sheltered alluvial estuary of the Terengganu River in Malaysia. The constructed breakwater at the mouth of the river shelters...

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Main Authors:	Hin, Lee Lee, Fredolin, Tangang, Gisen, J. I. A., Saim, Suratman
Format:	Article
Language:	English
Published:	Springer 2017
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/17714/ http://umpir.ump.edu.my/id/eprint/17714/ http://umpir.ump.edu.my/id/eprint/17714/ http://umpir.ump.edu.my/id/eprint/17714/1/fkasa-2017-isabella-Prediction%20of%20salinity%20intrusion%20in%20the%20sheltered1.pdf

id	ump-17714
recordtype	eprints
spelling	ump-177142018-05-21T01:51:23Z http://umpir.ump.edu.my/id/eprint/17714/ Prediction of Salinity Intrusion in the Sheltered Estuary of Terengganu River in Malaysia using 1-D Empirical Intrusion Model Hin, Lee Lee Fredolin, Tangang Gisen, J. I. A. Saim, Suratman TA Engineering (General). Civil engineering (General) Generally one dimensional (1-D) empirical salinity intrusion model is limited to natural alluvial estuary. However, this study attempts to investigate its ability to model a sheltered alluvial estuary of the Terengganu River in Malaysia. The constructed breakwater at the mouth of the river shelters the estuary from direct influence of the open sea. The salinity density along the estuary was collected during the wet and dry seasons for scenarios before and after the constructed breakwater. Moreover, the freshwater discharges, tidal elevations and bathymetry data were also measured as model inputs. A good fit was demonstrated between simulated and observed variables, namely salinity distribution and intrusion length for both scenarios. Thus, the results show that 1-D empirical salinity model can be utilized for sheltered estuarine condition at the Terengganu Estuary, but with an appropriate determination of an initial point. Furthermore, it was observed that the salinity intrusion in the study area is largely dependent on the freshwater discharge rather than tidal elevation fluctuations. The scale of the salinity intrusion length in the study area is proportional to the river discharge of the–1/2 power. It was appeared that the two lines of the 1-D empirical salinity model and discharge power based equation fitted well to each other, with the average predicted minimum freshwater discharge of 150 m3/s is going to be required to maintain acceptable salinity levels during high water slack (HWS) near the water intake station, which is located at 10.63 km from river mouth. Springer 2017 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/17714/1/fkasa-2017-isabella-Prediction%20of%20salinity%20intrusion%20in%20the%20sheltered1.pdf Hin, Lee Lee and Fredolin, Tangang and Gisen, J. I. A. and Saim, Suratman (2017) Prediction of Salinity Intrusion in the Sheltered Estuary of Terengganu River in Malaysia using 1-D Empirical Intrusion Model. Acta Oceanologica Sinica, 36 (5). pp. 57-66. ISSN 0253-505X (Print) 1869-1099 (Online) http://dx.doi.org/10.1007/s13131-017-1060-9 doi: 10.1007/s13131-017-1060-9
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Hin, Lee Lee Fredolin, Tangang Gisen, J. I. A. Saim, Suratman Prediction of Salinity Intrusion in the Sheltered Estuary of Terengganu River in Malaysia using 1-D Empirical Intrusion Model
description	Generally one dimensional (1-D) empirical salinity intrusion model is limited to natural alluvial estuary. However, this study attempts to investigate its ability to model a sheltered alluvial estuary of the Terengganu River in Malaysia. The constructed breakwater at the mouth of the river shelters the estuary from direct influence of the open sea. The salinity density along the estuary was collected during the wet and dry seasons for scenarios before and after the constructed breakwater. Moreover, the freshwater discharges, tidal elevations and bathymetry data were also measured as model inputs. A good fit was demonstrated between simulated and observed variables, namely salinity distribution and intrusion length for both scenarios. Thus, the results show that 1-D empirical salinity model can be utilized for sheltered estuarine condition at the Terengganu Estuary, but with an appropriate determination of an initial point. Furthermore, it was observed that the salinity intrusion in the study area is largely dependent on the freshwater discharge rather than tidal elevation fluctuations. The scale of the salinity intrusion length in the study area is proportional to the river discharge of the–1/2 power. It was appeared that the two lines of the 1-D empirical salinity model and discharge power based equation fitted well to each other, with the average predicted minimum freshwater discharge of 150 m3/s is going to be required to maintain acceptable salinity levels during high water slack (HWS) near the water intake station, which is located at 10.63 km from river mouth.
format	Article
author	Hin, Lee Lee Fredolin, Tangang Gisen, J. I. A. Saim, Suratman
author_facet	Hin, Lee Lee Fredolin, Tangang Gisen, J. I. A. Saim, Suratman
author_sort	Hin, Lee Lee
title	Prediction of Salinity Intrusion in the Sheltered Estuary of Terengganu River in Malaysia using 1-D Empirical Intrusion Model
title_short	Prediction of Salinity Intrusion in the Sheltered Estuary of Terengganu River in Malaysia using 1-D Empirical Intrusion Model
title_full	Prediction of Salinity Intrusion in the Sheltered Estuary of Terengganu River in Malaysia using 1-D Empirical Intrusion Model
title_fullStr	Prediction of Salinity Intrusion in the Sheltered Estuary of Terengganu River in Malaysia using 1-D Empirical Intrusion Model
title_full_unstemmed	Prediction of Salinity Intrusion in the Sheltered Estuary of Terengganu River in Malaysia using 1-D Empirical Intrusion Model
title_sort	prediction of salinity intrusion in the sheltered estuary of terengganu river in malaysia using 1-d empirical intrusion model
publisher	Springer
publishDate	2017
url	http://umpir.ump.edu.my/id/eprint/17714/ http://umpir.ump.edu.my/id/eprint/17714/ http://umpir.ump.edu.my/id/eprint/17714/ http://umpir.ump.edu.my/id/eprint/17714/1/fkasa-2017-isabella-Prediction%20of%20salinity%20intrusion%20in%20the%20sheltered1.pdf
first_indexed	2023-09-18T22:24:37Z
last_indexed	2023-09-18T22:24:37Z
_version_	1777415883763744768

Prediction of Salinity Intrusion in the Sheltered Estuary of Terengganu River in Malaysia using 1-D Empirical Intrusion Model

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