Influence of groundwater on the beach profile change

Relationships of hydrological parameters which are groundwater level, rainfall, and tides to the beach profile change of a beach are examined in order to advance understanding on swash zone morphology. Heavy rainfall and drought affect the groundwater level in Malaysia during two seasons. First, hea...

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Main Author:	Rahim, Nor Suhaila
Format:	Thesis
Language:	English
Published:	2014
Subjects:	TC Hydraulic engineering Ocean engineering
Online Access:	http://eprints.utm.my/id/eprint/48483/1/NorSuhailaRahimMFKA2014.pdf
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id	my-utm-ep.48483
record_format	uketd_dc
spelling	my-utm-ep.484832017-06-22T01:54:50Z Influence of groundwater on the beach profile change 2014 Rahim, Nor Suhaila TC Hydraulic engineering. Ocean engineering Relationships of hydrological parameters which are groundwater level, rainfall, and tides to the beach profile change of a beach are examined in order to advance understanding on swash zone morphology. Heavy rainfall and drought affect the groundwater level in Malaysia during two seasons. First, heavy rainfall and storms contribute to higher groundwater level during the wet season; thereby enhance the erosion rate. Second, lesser rainfall or no rain during the dry season will drop the groundwater level and enhances the accretion rate. According to this phenomenon, seasonal variation factor has significant impact to the sediment transport due to the groundwater level effects. A field investigation is conducted at Desaru beach with three monitoring wells are installed cross shore to the beach along with a rain gauge at the upslope. A tide gauge is installed at jetty Tanjung Balau in order to record the water level. Two field works are done for one week during spring and neap tides for both seasons. From the analysis obtained, Desaru is categorised as medium-sandy beach with the mean of medium grain size, d50 = 0.37 mm. It is found that the highest rainfall occurred on July while the driest month occurred on April with no rainfall at all. Observations from both monitoring wells show that the groundwater surface is generally not flat but fluctuated with time from the Southwest to the Northeast monsoon. The beach groundwater levels in the two monitoring wells were affected by rainfall however groundwater level in the well that located near to the shore is highly affected by tidal fluctuation. Finally, it is found that beach with high groundwater level tends to erode and producing flatter gradient. 2014 Thesis http://eprints.utm.my/id/eprint/48483/ http://eprints.utm.my/id/eprint/48483/1/NorSuhailaRahimMFKA2014.pdf application/pdf en public http://dms.library.utm.my:8080/vital/access/manager/Repository/vital:79524?queryType=vitalDismax&query=Influence+of+groundwater+on+the+beach+profile+change masters Universiti Teknologi Malaysia, Faculty of Civil Engineering Faculty of Civil Engineering
institution	Universiti Teknologi Malaysia
collection	UTM Institutional Repository
language	English
topic	TC Hydraulic engineering Ocean engineering
spellingShingle	TC Hydraulic engineering Ocean engineering Rahim, Nor Suhaila Influence of groundwater on the beach profile change
description	Relationships of hydrological parameters which are groundwater level, rainfall, and tides to the beach profile change of a beach are examined in order to advance understanding on swash zone morphology. Heavy rainfall and drought affect the groundwater level in Malaysia during two seasons. First, heavy rainfall and storms contribute to higher groundwater level during the wet season; thereby enhance the erosion rate. Second, lesser rainfall or no rain during the dry season will drop the groundwater level and enhances the accretion rate. According to this phenomenon, seasonal variation factor has significant impact to the sediment transport due to the groundwater level effects. A field investigation is conducted at Desaru beach with three monitoring wells are installed cross shore to the beach along with a rain gauge at the upslope. A tide gauge is installed at jetty Tanjung Balau in order to record the water level. Two field works are done for one week during spring and neap tides for both seasons. From the analysis obtained, Desaru is categorised as medium-sandy beach with the mean of medium grain size, d50 = 0.37 mm. It is found that the highest rainfall occurred on July while the driest month occurred on April with no rainfall at all. Observations from both monitoring wells show that the groundwater surface is generally not flat but fluctuated with time from the Southwest to the Northeast monsoon. The beach groundwater levels in the two monitoring wells were affected by rainfall however groundwater level in the well that located near to the shore is highly affected by tidal fluctuation. Finally, it is found that beach with high groundwater level tends to erode and producing flatter gradient.
format	Thesis
qualification_level	Master's degree
author	Rahim, Nor Suhaila
author_facet	Rahim, Nor Suhaila
author_sort	Rahim, Nor Suhaila
title	Influence of groundwater on the beach profile change
title_short	Influence of groundwater on the beach profile change
title_full	Influence of groundwater on the beach profile change
title_fullStr	Influence of groundwater on the beach profile change
title_full_unstemmed	Influence of groundwater on the beach profile change
title_sort	influence of groundwater on the beach profile change
granting_institution	Universiti Teknologi Malaysia, Faculty of Civil Engineering
granting_department	Faculty of Civil Engineering
publishDate	2014
url	http://eprints.utm.my/id/eprint/48483/1/NorSuhailaRahimMFKA2014.pdf
_version_	1747817401360056320

Influence of groundwater on the beach profile change

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