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Estimation of annual bedload flux in a macrotidal estuary: Bristol Channel, U.K.

Estimation of annual bedload flux in a macrotidal estuary: Bristol Channel, U.K.
Estimation of annual bedload flux in a macrotidal estuary: Bristol Channel, U.K.
Sedimentological data from the Bristol Channel indicate that “mutually evasive” ebb- and flood-dominant zones of net bedload transport are present. To test this hypothesis, long-term observations of currents from the channel are combined with empirical formulae to estimate annual bedload transport rates under the combined influence of tidal currents and surface wind-waves. Extrapolating these values over the ebb- and flood-dominant zones, sand flux to the upper part of the channel is estimated at about 64 × 105 t yr?1 with supply and removal being of nearly equal magnitude. Such patterns of sand and water movement may be typical of tidally dominated estuaries and embayments.
0025-3227
237-252
Harris, Peter T,
427f0f97-2af8-42db-8ef6-34dfbe2f1ae4
Collins, Michael
3b70278b-0004-45e0-b3c9-0debdf0a9351
Harris, Peter T,
427f0f97-2af8-42db-8ef6-34dfbe2f1ae4
Collins, Michael
3b70278b-0004-45e0-b3c9-0debdf0a9351

Harris, Peter T, and Collins, Michael (1988) Estimation of annual bedload flux in a macrotidal estuary: Bristol Channel, U.K. Marine Geology, 83 (1-4), 237-252. (doi:10.1016/0025-3227(88)90060-6).

Record type: Article

Abstract

Sedimentological data from the Bristol Channel indicate that “mutually evasive” ebb- and flood-dominant zones of net bedload transport are present. To test this hypothesis, long-term observations of currents from the channel are combined with empirical formulae to estimate annual bedload transport rates under the combined influence of tidal currents and surface wind-waves. Extrapolating these values over the ebb- and flood-dominant zones, sand flux to the upper part of the channel is estimated at about 64 × 105 t yr?1 with supply and removal being of nearly equal magnitude. Such patterns of sand and water movement may be typical of tidally dominated estuaries and embayments.

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Published date: September 1988

Identifiers

Local EPrints ID: 192539
URI: https://eprints.soton.ac.uk/id/eprint/192539
ISSN: 0025-3227
PURE UUID: dac0c823-697a-4a03-b560-a172e57880d6

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Date deposited: 05 Jul 2011 13:34
Last modified: 18 Jul 2017 11:31

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Author: Peter T, Harris
Author: Michael Collins

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