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Increasing winter baseflow and mean annual streamflow from possible permafrost thawing in the Northwest Territories, Canada

Dates

Year
2009

Citation

St. Jacques, Jeannine‐Marie, and Sauchyn, David J., 2009, Increasing winter baseflow and mean annual streamflow from possible permafrost thawing in the Northwest Territories, Canada: Geophysical Research Letters, v. 36, no. 1.

Summary

1] Increasing surface air temperatures from anthropogenic forcing are melting permafrost at high latitudes and intensifying the hydrological cycle. Long-term streamflow records (≥30 yrs) from 23 stream gauges in the Canadian Northwest Territories (NWT) indicate a general significant upward trend in winter baseflow of 0.5–271.6 %/yr and the beginning of significant increasing mean annual flow (seen at 39% of studied gauge records), as assessed by the Kendall-τ test. The NWT exports an average discharge of ≥308.6 km3/yr to the Beaufort Sea, of which ≥120.9 km3/yr is baseflow. We propose that the increases in winter baseflow and mean annual streamflow in the NWT were caused predominately by climate warming via permafrost thawing that [...]

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  • LC MAP - Landscape Conservation Management and Analysis Portal
  • Northwest Boreal Landscape Conservation Cooperative

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Data source
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File Process
Type
End Note
Reference Item
6127 records
Reference File
NWBLCC-20160503-Saved.xml

Additional Information

Identifiers

Type Scheme Key
DOI http://sciencebase.gov/vocab/identifierScheme 10.1029/2008GL035822

Citation Extension

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