Physics – Space Physics
Scientific paper
Dec 2000
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2000dps....32.6503a&link_type=abstract
American Astronomical Society, DPS Meeting #32, #65.03; Bulletin of the American Astronomical Society, Vol. 32, p.1639
Physics
Space Physics
Scientific paper
Perennial springs located on west central Axel Heiberg Island in the Canadian High Arctic occur in a region with a mean annual air temperature of -17 degrees C and flow through continuous permafrost over 600 meters thick. The spring water is a low temperature (up to 6 degrees C) brine flow that maintains constant discharge temperatures and flow rate throughout the year. Here we report on observations of the thermal regime associated with these springs and develop a combined flow and thermal model of the subsurface flow using the measured geothermal gradient. We also consider the implications these springs have for the search for similar environments, past or present, on Mars. This work was supported by grants from NASA's Exobiology program, the Natural Sciences and Engineering Research Council of Canada, the Department of Indian and Northern Affairs Northern Scientific Training Program, NASA's Astrobiology Integration Office, and the Laboratory for Atmospheric and Space Physics at the University of Colorado. Logistical support was provided by the Canadian Polar Continental Shelf Project and McGill University's High Arctic Research Station.
Andersen Timothy D.
Heldmann Jennifer L.
Jakosky Bruce M.
McKay Chris P.
Pollard Wayne H.
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