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(Article of periodic en Anglais - 2013)

Document title

Observations and conceptual modelling of morphological coupling in a double sandbar system

Authors(s) and Affiliation(s)

PRICE T.D. (1) ; RUESSINK B.G. (1) ;
(1) Dep. of Physical Geography, Fac. of Geosciences, Inst. for Marine and Atmospheric Research, Univ., Utrecht, PAYS-BAS

Abstract

The AA. use a 9.3-year dataset of daily low-tide time exposure images from the double-barred beach at Surfers Paradise (Gold Coast, Australia) to analyse the temporal and spatial characteristics of morphological coupling within a double sandbar system. They distinguish 5 types of morphological coupling between the inner and outer sandbars, of which 4 coincide with a downstate progression of the outer bar. Cross-correlation of the image-derived inner- and outer-bar patterns shows coupling to be a common phenomenon in the double sandbar system studied here. Based on their observations and bathymetries assimilated from the images for a restricted set of coupling events, the AA. hypothesize that the angle of offshore wave incidence, wave height and depth variations along the outer sandbar determine the type of flow pattern (cell circulations versus meandering currents) above the inner bar and hence steer the type of coupling

Source

Article of periodic

published at : Earth surface processes and landforms / ISSN 0197-9337 / CODEN ESPLDB

Editor : Wiley, Chichester - ROYAUME-UNI (1981)

Millesime : 2013, vol. 38, no5 [pp. 477-489]

Bibliographic references : 1 p.

Collation : 11 fig., 2 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3293

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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