Icings and groundwater conditions in permafrost catchments of northwestern Canada.

Since 1980, the northern region has experienced a warming trend of 0.07 to 0.11 °C yr −1 , whereas the more southern region experienced a warming of 0.01 to 0.07 °C yr −1 ; with four stations showing a significant trend at <0.1 level (Table S1 ).

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