Permafrost investigations in western arctic Canada

Regions: Inuvialuit Settlement Region

Tags: physical sciences, geology, active layer, frost heave, geophysics, pingo, surficial stability, wedge ice

Principal Investigator: Burn, Chris R (31)
Licence Number: 13171
Organization: Carleton University
Licenced Year(s): 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998
Issued: Apr 04, 2001
Project Team: Douglas Joe, Dr. J. Ross Mackay

Objective(s): The work concerns permafrost conditions in the Mackenzie Delta area, and how ground behaves due to the extreme temperatures of the region. At Illisarvik, the research team will investigate heave of the lake bottom and growth of permafrost in the drained-lake sediments. At Garry Island and near Inuvik, the research team will also investigate movement of the ground associated with ice wedges. At Inuvik, the team will investigate the tilting of trees as a result of frost heave. The research team will visit Paulatuk this summer, to continue some observations of wind-abraded rocks Dr. Mackay began 50 years ago.

Project Description: Changes in the ground due to uplift, associated with the growth of a pingo, and sideways movements due to the growth of ice wedges, will be measured. Air, ground, and lake water temperatures will be measured, in order to find out how the ground is responding to climatic variation. The reseach team will also return to Paulatuk, to continue studies Dr. Mackay began there 50 years ago. Travel to sites, which takes place several times a year, takes place by skidoo and helicopter. The reseach team camps at a cabin nearby to where measurements are taken, and walks to the study site. All garbage, and camp gear, is removed from the site at the end of each visit.