The University of Southampton
University of Southampton Institutional Repository

Tidal inlet stability in response to hydrodynamic and sediment dynamic conditions

Record type: Article

Factors controlling tidal inlet stability are analysed and the general dynamic behaviour of an inlet in response to hydrodynamic and sediment dynamic conditions are discussed, using an example from Christchurch Harbour (southern England). A technique is developed for the estimation of current speeds within the entrance channel, on the basis of the definition of the “apparent” basin area. The results show that: (1) the Image ratio as one of stability criteria can be extended to include the influences of the characteristics of tides and freshwater discharges; (2) for inlet systems characterised by small flood and ebb tidal deltas and a pattern of by-passing of sediments due to tidal currents, the equilibrium cross-sectional area can be determined analytically; (3) the ratio of the difference between flood and ebb sediment discharges within the entrance to longshore sediment flux (i.e. the parameter k defined in the present study) can be used as a stability criterion; and (4) the evolution of an inlet system in response to an increase in longshore sediment flux appears to be characterised by a decrease in AE and a constant k value in early stages, but by a slow change in AE and a decrease in k in later stages (hence, these two stability criteria can be combined to describe the inlet behaviours in response to sediment movement, for different stages of evolution).

Full text not available from this repository.

Citation

Gao, Shu and Collins, Michael (1994) Tidal inlet stability in response to hydrodynamic and sediment dynamic conditions Coastal Engineering, 23, (1-2), pp. 61-80. (doi:10.1016/0378-3839(94)90015-9).

More information

Published date: May 1994

Identifiers

Local EPrints ID: 192485
URI: http://eprints.soton.ac.uk/id/eprint/192485
ISSN: 0378-3839
PURE UUID: cc266c0a-fc2d-4a0c-9bd5-d7947aea8286

Catalogue record

Date deposited: 04 Jul 2011 15:54
Last modified: 18 Jul 2017 11:31

Export record

Altmetrics

Contributors

Author: Shu Gao
Author: Michael Collins

University divisions


Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×