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(Article of periodic en Anglais - 2011)

Document title

Rate of floodplain reworking in response to increasing storm-induced floods, Squamish River, south-western British Columbia, Canada

Authors(s) and Affiliation(s)

BAUCH G.D. (1) ; HICKIN E.J. (1) ;
(1) Dep. of Geography, Simon Fraser Univ., Burnaby, CANADA

Abstract

Relations among hydroclimatic and channel planform changes on Squamish River are presented for the period 1956–2007. The increase in extreme floods is attributed to the intensification of late-season (August–December) Pacific storms that have produced increases in precipitation amounts, intensity and duration over the same period. Changes in floodplain-surface area calculated from the geographic information system (GIS) differencing of sequential large-scale aerial photographs indicate that the rate of geomorphic change in Squamish River has accelerated during the 1980s to the mid-1990s. Erosion is currently outpacing deposition in the majority of study reaches. Although channel geometry generally exhibits no uniform pattern of response to the increase in extreme floods, the meandering reaches have straightened over the duration of the study period

Source

Article of periodic

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

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

Millesime : 2011, vol. 36, no7 [pp. 872-884]

Bibliographic references : 37 ref.

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.2115

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2011
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