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An assessment of beach sediment store and sources in East Coast Park, Singapore
Author
Loh, Swee Ling
Supervisor
Teh, Tiong Sa
Abstract
Having undergone previous stages of land reclamation, the coastline of Singapore had been transformed beyond recognition. In particular, the configuration of the southeast coast of Singapore was greatly modified by the East Coast Reclamation Scheme. Presently. a series of crescent and J-shaped bays had formed along the East Coast Park. However, even after formation of the J-shaped bays which is supposed to signal the beginning of coastline equilibrium, the beaches of the East Coast Park continued to retreat.
The main source of sand for the formation of these beaches is unique, having originated mainly from the often clayey land fill used in reclamation. The sands released from the clay platform underlying the beach sands are important in the continued maintenance of the beaches. Sands from scarp retreat and lowering of the clay platform help to balance the sediment budget. However, it is essential that the scarp retreat and lowering of the clay platform be properly managed, for unmanaged retreat could bring about undesirable consequences, such as the loss of quality beaches, loss of infrastructures and property and pollution of coastal waters. Thus, coastal managers should undertake monitoring to track the health of the beaches. This study attempts to study the sediment budget and the role of the clay platform as a source of sediment supply. Two scenarios of scarp retreat and lowering of the clay platform will be discussed in detail, and the relationship between coastline retreat and the sediment budget will also be examined.
The main source of sand for the formation of these beaches is unique, having originated mainly from the often clayey land fill used in reclamation. The sands released from the clay platform underlying the beach sands are important in the continued maintenance of the beaches. Sands from scarp retreat and lowering of the clay platform help to balance the sediment budget. However, it is essential that the scarp retreat and lowering of the clay platform be properly managed, for unmanaged retreat could bring about undesirable consequences, such as the loss of quality beaches, loss of infrastructures and property and pollution of coastal waters. Thus, coastal managers should undertake monitoring to track the health of the beaches. This study attempts to study the sediment budget and the role of the clay platform as a source of sediment supply. Two scenarios of scarp retreat and lowering of the clay platform will be discussed in detail, and the relationship between coastline retreat and the sediment budget will also be examined.
Date Issued
2005
Call Number
GB451.2 Loh
Date Submitted
2005