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(Article of periodic en Anglais - 2013)

Document title

Annual to decadal morphodynamics of the foredune system at Greenwich Dunes, Prince Edward Island, Canada

Authors(s) and Affiliation(s)

OLLERHEAD J. (1) ; DAVIDSON-ARNOTT R. (2) ; WALKER I.J. (3) ; MATHEW S. (4) ;
(1) Dept. of Geography and Environment, Mount Allison Univ., Sackville, CANADA
(2) Dept. of Geography, Univ., Guelph, CANADA
(3) Dept. of Geography, Univ., Victoria, CANADA
(4) Bureau of Economic Geology, Jackson School of Geosciences, Univ. Texas, Austin, ETATS-UNIS

Abstract

The AA. quantify relationships between season, sediment availability, sediment transport pathways, and beach/foredune morphology at Greenwich Dunes, PEI. This was done for periods ranging from a few days to multiple decades using erosion pins, bedframe measurements, annual surveys, and digital photogrammetry using historical aerial photographs. The relative significance of seasonal/annual processes versus response of the foredune system to broader geomorphic controls (e.g. relative sea level rise, storms, etc.) was also assessed. The data show that there are clear seasonal differences in the patterns of sand supply from the beach to the foredune at Greenwich and that there are differences in sediment supply to the foredune between the east and west reaches of the study area, resulting in ongoing differences in foredune morphology. Although the rate of foredune development or recovery after disturbance changes over time due to morphological feedback, the overall decadal evolution of the foredune system at Greenwich is consistent with, and supports, the Davidson-Arnott (2005) conceptual model of dune transgression under rising sea level

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, no3 [pp. 284-298]

Bibliographic references : 2 p.

Collation : 12 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.3327

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