Permafrost investigations in western Arctic Canada

Regions: Inuvialuit Settlement Region

Tags: ground temperature, permafrost, wedge ice, tree ecology

Principal Investigator: Burn, Chris R (31)
Licence Number: 13294
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 10, 2002
Project Team: Douglas Joe, Dr. J. Ross Mackay, Andrew Burn

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, the research team will also investigate the growth of ice wedge polygons, and re-occupy a line of ground temperature sites first studied by Dr. Mackay in the early 1970's. These sites will be studied to determine how the ground has warmed over the last 30 years. The research team will also complete a study on the tilt of trees near Inuvik.

Project Description: The researcher will measure changes in ground temperatures by data loggers and on ground temperature cables that were installed several years ago. The researcher will measure both uplift of the ground by surveying, and sideways movement of the ground due to growth of ice wedges. The researcher will also measure air, ground, and lake water temperatures and ice thickness, to find out how these are changing with climatic variation. Travel to sites, which will occur several times this year, will take place by skidoo and helicopter. The research 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.