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(Article of periodic en Anglais - 2014)

Document title

Characterising runoff generation processes in a lake-rich thermokarst landscape (Old Crow Flats, Yukon, Canada) using δ18 O, δ2 H and d-excess measurements

Authors(s) and Affiliation(s)

TURNER K.W. (1) ; EDWARDS T.W.D. (2) ; WOLFE B.B. (1) ;
(1) Dept. of Geography and Environmental Studies, Wilfrid Laurier Univ., Ontario, Waterloo, CANADA
(2) Dept. of Earth and Environmental Sciences, Univ., Ontario, Waterloo, CANADA

Abstract

In Old Crow Flats, a lake-rich thermokarst landscape in northern Yukon Territory (Canada), local land users have concerns over the effects of recent lake drainage and fluctuating river discharge on their traditional way of life. In the absence of hydrometric stations, the AA. evaluate the utility of isotopic monitoring of the lower Old Crow River, which is fed by several tributaries and drains the flats, for tracking runoff generation. Isotopic "snapshots" obtained from 2007, 2008 and 2009 during the recession limb of the spring freshet hydrograph provided characteristic patterns of deuterium excess (d-excess) along the Old Crow River. It is shown that river isotope sampling could be used to monitor spatial and temporal variability in runoff generation processes in the Old Crow Flats and other northern lake-rich landscapes drained by rivers

Source

Article of periodic

published at : Permafrost and periglacial processes / ISSN 1045-6740 / CODEN PEPPED

Editor : Wiley, Chichester - ROYAUME-UNI (1990)

Millesime : 2014, vol. 25, no1 [pp. 53-59]

Bibliographic references : 1 p.

Collation : 4 fig., 1 tabl.

Language

Anglais

Digital Object Identifier

Go to electronic document thanks to its DOI : doi:10.1002/ppp.1802

Tous droits réservés © Prodig - Bibliographie Géographique Internationale (BGI), 2014
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