ESTIMATING TALIK DEPTH BENEATH LAKES IN ARCTIC ALASKA

Kenneth Hinkel, Christopher Arp

In the proceedings of: GeoQuébec 2015: 68th Canadian Geotechnical Conference & 7th Canadian Permafrost Conference

Session: John Ross MacKay Symposium - Permafrost II / Symposium John Ross MacKay - Pergélisol II

ABSTRACT: Water temperature and morphometric data were collected from 28 lakes in Arctic Alaska of various size, geometry, depth and genesis. Using methods pioneered by J. Ross Mackay, calculations of temperature beneath the lake indicate that 20 of these have through taliks. We estimate that over 2100 lakes in the study area have through taliks, suggesting that the continuous permafrost is riddled with taliks that may connect surface lake water with sub-permafrost water.

RÉSUMÉ: Des données de température de l'eau et des données morphométriques ont été recueillies pour 28 lacs de tailles, de géométries, de profondeurs et de genèses variées en Alaska arctique. En utilisant des méthodes mises au point par J. Ross Mackay, le calcul de la température sous le lac indique que 20 d'entre eux sont associés à des taliks traversant. Nous estimons que plus de 2100 lacs dans la zone d'étude ont des taliks traversant, suggérant que le pergélisol continu est criblé de taliks qui peuvent connecter l'eau de surface d™un lac avec l'eau sous le pergélisol.

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Cite this article:
Kenneth Hinkel; Christopher Arp (2015) ESTIMATING TALIK DEPTH BENEATH LAKES IN ARCTIC ALASKA in GEO2015. Ottawa, Ontario: Canadian Geotechnical Society.

@article{296,author = Kenneth Hinkel; Christopher Arp,title = ESTIMATING TALIK DEPTH BENEATH LAKES IN ARCTIC ALASKA,year = 2015}