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(Article of periodic en Anglais - 2012)

Document title

High-frequency sediment transport responses on a vegetated foredune

Authors(s) and Affiliation(s)

DAVIDSON-ARNOTT R.G.D. (1) ; BAUER B.O. (2) ; WALKER I.J. (3) ; HESP P.A. (4) ; OLLERHEAD J. (5) ; CHAPMAN C. (3) ;
(1) Dep. of Geography, Univ., Guelph, BELGIQUE
(2) Earth and Environmental Sciences & Geography, Univ. of British Columbia, Kelowna, CANADA
(3) Dept. of Geography, Univ., Victoria, CANADA
(4) Dept. of Geography and Anthropology, Louisiana State Univ., Baton Rouge, ETATS-UNIS
(5) Dept. of Geography and Environment, Mount Allison Univ., Sackville, CANADA

Abstract

The field experiment was undertaken at Greenwich Dunes, Prince Edward Island National Park, Canada. Wind flow and sand transport intensity were measured on the seaward slope of a vegetated foredune during a 16 h storm using an array of sonic anemometers and Wenglor laser particle counters. Sand transport was initially inhibited by a brief period of rain at the start of the event but as the surface dried and wind speed increased sand transport was initiated over the entire seaward slope. Transport intensity was quite variable both temporally and spatially on the upper slope as a result of fluctuating wind speed and direction, but overall magnitudes were similar over the whole length. Transport on the beach for onshore winds is decoupled from that on the seaward slope above the small scarp when the wind angle is highly oblique, but for wind angles <45° from shore perpendicular some sand is transported onto the lower slope

Source

Article of periodic

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

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

Millesime : 2012, vol. 37, no11 [pp. 1227-1241]

Bibliographic references : 2 p.

Collation : 12 fig., 3 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3275

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2013
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