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(Article of periodic en Anglais - 2012)

Document title

Using ice-scars as indicators of exposure to physical lakeshore disturbances, Corvette Lake, northern Québec, Canada

Authors(s) and Affiliation(s)

LEMAY M. (1) ; BÉGIN Y. (2) ;
(1) Centre d'études nordiques et Dept. de Géographie, Université Laval, Sainte-Foy, Québec, CANADA
(2) Centre d'études nordiques/Centre for Northern Studies and Centre Eau Terre Environnement, Inst. National de la Recherche Scientifique, Québec, CANADA

Abstract

The hypothesis tested here is that ice-scars recorded by lakeshore tree stands can be used as an integrative proxy indicator of the overall hydrodynamic disturbance regimes affecting northern lakeshores. This study was conducted on a shoreline segment located at the extreme east of Corvette Lake, situated in the high-boreal climatic zone of northern Quebec. A significant relationship was found between ice-scar chronology and wave exposure index, which indicates that the mechanical action and physical force of ice activity mainly depend on the same environmental factors determining exposure to wave action (fetch, wind direction and velocity, and shore slope). The spatial and temporal variability of ice-scar chronology features also corresponded to the distribution of geomorphological features associated with ice activity along the shoreline. Together, ice-scars and wave exposure index provide essential information to interpret the evolution of lakeshore vegetation mosaics in time and space

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, no13 [pp. 1353-1361]

Bibliographic references : 2 p.

Collation : 7 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.3244

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