The Influence Of River Discharges, Tides, And Winds On Estuarine Plume In Northwest Peninsular Malaysia

The aim of the thesis was to investigate the spatial and temporal structure of estuarine plume and coastal waters in northwest Peninsular Malaysia. Measurements of salinity, temperature, and TSS were carried out at the Muda plume, Prai plume and the lower Merbok estuary. In addition, aerial image...

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Main Author: Syukri, Muhammad
Format: Thesis
Language:English
Published: 2006
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Online Access:http://eprints.usm.my/56228/1/00001660570%20M.S.pdf
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spelling my-usm-ep.562282023-01-05T08:11:14Z The Influence Of River Discharges, Tides, And Winds On Estuarine Plume In Northwest Peninsular Malaysia 2006-12 Syukri, Muhammad QC1 Physics (General) The aim of the thesis was to investigate the spatial and temporal structure of estuarine plume and coastal waters in northwest Peninsular Malaysia. Measurements of salinity, temperature, and TSS were carried out at the Muda plume, Prai plume and the lower Merbok estuary. In addition, aerial images and current measurements were also obtained through several selected field surveys. The discharge of the Muda River was an order of magnitude more than Prai and Merbok Rivers. The results suggest that the surface plume characteristics of the estuaries and coastal waters are influenced by freshwater discharge. spring-neap tidal energy, and to some extent by wind forcing. During high discharge, the offshore extent of the Muda and Prai estuary plumes were approximately 4 km and 2 km respectively. The surface horizontal areas covered by these plumes were 30.0 km2 and 13.5 km2, respectively. During low discharge, the extent of plumes were closer to the coastline at about 1-2 km offshore. Tides were responsible for the mixing and the stratification of the plumes. The Muda plume and the lower Merbok Estuary. during the transition of spring-to-neap periods that change the plume structure from partially-mixed or homogeneous (spring tide) to highly stratified (neap tide). There were consistently higher TSS concentrations of Muda and Prai plume waters and Merbok Estuary during spring tides than at neap tides due to stronger spring tide energy. On the contrary, during neap tide a similar behavior of TSS concentration was not found. No obvious correlation was found between the plume characteristics and wind forcing, except during strong winds when there were some evidence of plume movement according to wind direction. Remote sensing provided information on the two-dimensional surface structures of the estuary plumes. For example, the aerial images clearly showed snapshots of the Prai plume being deflected to the south/north during low/high discharge. These behaviors were influenced by tides. 2006-12 Thesis http://eprints.usm.my/56228/ http://eprints.usm.my/56228/1/00001660570%20M.S.pdf application/pdf en public phd doctoral Perpustakaan Hamzah Sendut Pusat Pengajian Sains Fizik
institution Universiti Sains Malaysia
collection USM Institutional Repository
language English
topic QC1 Physics (General)
spellingShingle QC1 Physics (General)
Syukri, Muhammad
The Influence Of River Discharges, Tides, And Winds On Estuarine Plume In Northwest Peninsular Malaysia
description The aim of the thesis was to investigate the spatial and temporal structure of estuarine plume and coastal waters in northwest Peninsular Malaysia. Measurements of salinity, temperature, and TSS were carried out at the Muda plume, Prai plume and the lower Merbok estuary. In addition, aerial images and current measurements were also obtained through several selected field surveys. The discharge of the Muda River was an order of magnitude more than Prai and Merbok Rivers. The results suggest that the surface plume characteristics of the estuaries and coastal waters are influenced by freshwater discharge. spring-neap tidal energy, and to some extent by wind forcing. During high discharge, the offshore extent of the Muda and Prai estuary plumes were approximately 4 km and 2 km respectively. The surface horizontal areas covered by these plumes were 30.0 km2 and 13.5 km2, respectively. During low discharge, the extent of plumes were closer to the coastline at about 1-2 km offshore. Tides were responsible for the mixing and the stratification of the plumes. The Muda plume and the lower Merbok Estuary. during the transition of spring-to-neap periods that change the plume structure from partially-mixed or homogeneous (spring tide) to highly stratified (neap tide). There were consistently higher TSS concentrations of Muda and Prai plume waters and Merbok Estuary during spring tides than at neap tides due to stronger spring tide energy. On the contrary, during neap tide a similar behavior of TSS concentration was not found. No obvious correlation was found between the plume characteristics and wind forcing, except during strong winds when there were some evidence of plume movement according to wind direction. Remote sensing provided information on the two-dimensional surface structures of the estuary plumes. For example, the aerial images clearly showed snapshots of the Prai plume being deflected to the south/north during low/high discharge. These behaviors were influenced by tides.
format Thesis
qualification_name Doctor of Philosophy (PhD.)
qualification_level Doctorate
author Syukri, Muhammad
author_facet Syukri, Muhammad
author_sort Syukri, Muhammad
title The Influence Of River Discharges, Tides, And Winds On Estuarine Plume In Northwest Peninsular Malaysia
title_short The Influence Of River Discharges, Tides, And Winds On Estuarine Plume In Northwest Peninsular Malaysia
title_full The Influence Of River Discharges, Tides, And Winds On Estuarine Plume In Northwest Peninsular Malaysia
title_fullStr The Influence Of River Discharges, Tides, And Winds On Estuarine Plume In Northwest Peninsular Malaysia
title_full_unstemmed The Influence Of River Discharges, Tides, And Winds On Estuarine Plume In Northwest Peninsular Malaysia
title_sort influence of river discharges, tides, and winds on estuarine plume in northwest peninsular malaysia
granting_institution Perpustakaan Hamzah Sendut
granting_department Pusat Pengajian Sains Fizik
publishDate 2006
url http://eprints.usm.my/56228/1/00001660570%20M.S.pdf
_version_ 1776101153966129152