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(Article of periodic en Anglais - 2012)

Document title

Wind direction and complex sediment transport response across a beach–dune system

Authors(s) and Affiliation(s)

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

Abstract

A field study was undertaken at the Greenwich Dunes, Price Edward Island, Canada. A conceptual model is proposed which shows how near-surface wind vectors are altered for 4 regional wind conditions : (a) onshore, detached; (b) onshore-oblique, attached and deflected; (c) offshore, detached; and (d) offshore-oblique, attached and deflected. High-frequency measurements of sediment transport intensity during these different events demonstrate that predictions of sediment flux using standard equations driven by regional wind statistics would by unreliable and misleading. It is recommended that field studies routinely implement experimental designs that treat the near-surface wind field as comprising true vector quantities (with speed and direction) in order that a more robust linkage between the regional (upper air) wind field and the sediment transport response across the beach-dune profile be established

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, no15 [pp. 1661-1677]

Bibliographic references : 2 p.

Collation : 11 fig., 1 tabl.

Language

Anglais

INIST-CNRS, Cote INIST : 17355

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/esp.3306

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