The Long-Term Effects of Training Walls, Reclamation, and Dredging on Estuaries.

INGLIS, CC; Kestner, F. J. T.

doi:10.1680/iicep.1958.2291

Cited by 25 publications

(5 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A further possible source of sediments may be reworking of the bed of The Wash itself by tidal current activity. Although the main bathymetric features have remained remarkably stable for several centuries, comparison of charts suggests that The Wash deepened during the years 1828-1917 by approximately an equal volume to that which has accreted on the surrounding intertidal flats (Inglis & Kestner, 1958;Kestner, 1979). The validity of this suggestion has been questioned by Ruxton (1979), however, who has pointed out the problems of comparing sequential hydrographical surveys.…”

Section: Discussionmentioning

confidence: 99%

“…The subsequent Holocene marine transgression has formed a series of gravels, forest beds, peats, clays and lake marls, and deposition of a wide crescent of dominantly sandy deposits around the shores of The Wash (Evans, 1965). Intertidal flat deposition in this sheltered embayment led to extensive coastal progradation over approximately the last 2000 years and this was enhanced by reclamation (Inglis & Kestner, 1958). Outcrops of bedrock and till are found in the deepest parts of the channels, near the entrance of The Wash and also on the floors of some of the estuarine channels, where they have been exposed by dredging.…”

Section: Regional Backgroundmentioning

confidence: 96%

“…The Wash, located on the east coast of England, is one of such embayments (Dugdale & Evans, 1990). Estimates of the annual water and suspended sediment discharged by rivers into The Wash are lo9 m3 and lo4 to lo5 tonnes, respectively; these, compared with a spring tidal prism of 2.8 x loy m3 and an annual mean offshore suspended sediment supply of the order of lo6 tonnes, indicate that fluvial processes are subordinate in this embayment ( Most studies undertaken in The Wash have focused upon the saltmarshes and intertidal flats fringing the embayment: water and sediment movement, and the sources of sediments deposited on the intertidal flats have been a subject of much discussion (Inglis & Kestner, 1958;Kestner, 1963;Evans, 1965;Evans & Collins, 1975, 1987Amos & Collins, 1978;Collins et al, 1981;Chang & Evans, 1992). Although some preliminary interpretations of water movement within the subtidal area of The Wash have been undertaken (Kestner, 1975;Evans & Collins, 1987), the movement of water and sediment into The Wash and subsequently onto the intertidal zone are still poorly understood.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Hydrodynamics and sediment dynamics of The Wash embayment, eastern England

Evans

Collins

1996

Sedimentology

View full text Add to dashboard Cite

Water and sediment movement in The Wash embayment has been determined from an extensive set of data, consisting of tidal current readings and suspended sediment concentration measurements. Instantaneous and residual currents in the embayment show a distinct lateral inhomogeneity, whereas vertically the water column is almost homogenous. The central deep water area (30–40 m) of the embayment is dominated by a residual landward water movement, whilst on the margins, the residual movement is seaward. Sediment is supplied predominantly in suspension from the north, through the northern extremity of Boston Deep. Suspended sediment pathways are coincident with the spring tide water movements and the subtidal channels act as the main conduits. Approximately 6·8 × 106 tonnes yr−1 of suspended sediments are supplied to the embayment from offshore areas. Bedload sediment supply is of lesser importance, ∼ 1·4 × 104 tonnes yr−1. Whereas suspended sediment movement appears to be the dominant mode of transport throughout the embayment, bedload transport is important in reforming the sea bed into a variety of bedforms which are particularly well developed on the margins of channels and shoals.

show abstract

Section: Discussionmentioning

confidence: 99%

Section: Regional Backgroundmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Hydrodynamics and sediment dynamics of The Wash embayment, eastern England

Evans

Collins

1996

Sedimentology

View full text Add to dashboard Cite

show abstract

“…Worldwide, land reclamation and dredging have been, and still are, common practice in many estuaries, many researchers reporting increased sedimentation as a consequence (e.g. Inglish and Kestner, 1958;Sherwood et al, 1990;Pye and French, 1993;. This can mainly be attributed to enhancement of flood dominance due to decrease tidal flat area (Van der Spek, 1997).…”

Section: Morphological Response Model Of the Hangzhou Baymentioning

confidence: 99%

Local human activities overwhelm decreased sediment supply from the Changjiang River: Continued rapid accumulation in the Hangzhou Bay-Qiantang Estuary system

Xie

Pan

et al. 2017

Marine Geology

View full text Add to dashboard Cite

The aim of this contribution is to investigate the morphological responses of Hangzhou Bay, China, located immediately south of the Changjiang Estuary, to the drastic reduction of the sediment load from the Changjiang River and the large-scale coastal embankment over past decades. The spatial patterns of deposition and erosion, sediment volume changes, and the feedback with hydrodynamics and sediment transport were analyzed, on the basis of historical bathymetric and hydrographic data. The results show that the sedimentation rates in the bay have overall increased rather than decreased over the past decades, despite bed erosion having occurred in the northern bay-mouth. This reveals that the influence of the reduction in the Changjiang River sediment load on the

show abstract

“…Inglis & Kestner 1958;Price & Kendrick 1963;O'Connor 1987). This may be caused by such modifications as an increase in water depth due to dredging, or channel straightening or reclamation in an estuary (e.g.…”

Section: Monitoring and Managementmentioning

confidence: 99%

Development of a coastal vulnerability index: a geomorphological perspective

2000

View full text Add to dashboard Cite

Sustainable coastal resource management requires the safeguarding and transmission to future generations of a level and quality of natural resources that will provide an ongoing yield of economic and environmental services. All maritime nations are approaching this goal with different issues in mind. The UK, which has a long history of development and flood protection in coastal areas, has chosen to adopt shoreline management, rather than coastal management, so placing coastal defence above all else as its primary and statutory objective. This paper aims to provide a geomorphological perspective of long-term coastal evolution and seeks to compare the UK approach with wider interpretations of coastal management. Based on a literature review, it is argued that coastal management (CM) and shoreline management, as a subset of CM, should share the same ultimate objectives, which are defined by many authorities as sustainable use. The objectives, both strategic and pragmatic, which follow from such an aim may appear to conflict with a reading of many of the texts for international and national CM or designated area management which emphasizes stability rather than sustainability. The result is that coastal defence is seen not merely as a means to an end but as an end in itself. It is argued within this paper that sustainable use of the coast, however, demands both spatial and temporal flexibility of its component systems, and management for change must therefore be the primary objective. Response of the natural system to independent forcing factors must be encouraged under this objective, whether such forces are natural or anthropogenic. In achieving such an objective the concept of shoreline vulnerability may prove useful. A simple and preliminary Vulnerability Index is proposed, relating disturbance event frequency to relaxation time (the time taken for the coastal feature to recover its form). This index provides a first order approximation of the temporal variability that may be expected in landform components of the shoreline system, so allowing management to provide more realistic objectives for long-term sustainability in response to both natural and artificial forces.

show abstract

The Long-Term Effects of Training Walls, Reclamation, and Dredging on Estuaries.

Cited by 25 publications

References 0 publications

Hydrodynamics and sediment dynamics of The Wash embayment, eastern England

Hydrodynamics and sediment dynamics of The Wash embayment, eastern England

Local human activities overwhelm decreased sediment supply from the Changjiang River: Continued rapid accumulation in the Hangzhou Bay-Qiantang Estuary system

Development of a coastal vulnerability index: a geomorphological perspective

Contact Info

Product

Resources

About