Régions: Inuvialuit Settlement Region
étiquettes: ground temperature, permafrost, wedge ice, tree ecology
| chercheur principal: | Burn, Chris R (36) |
| Nᵒ de permis: | 13294 |
| Organisation: | Carleton University |
| Année(s) de permis: |
2022
2021
2020
2019
2018
2017
2016
2015
2014
2013
2012
2011
2010
2009
2008
2007
2006
2005
2004
2003
2002
2001
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1999
1998
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| Délivré: | avr. 10, 2002 |
| Équipe de projet: | Douglas Joe, Dr. J. Ross Mackay, Andrew Burn |
Objectif(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.
Description du projet: 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.
