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January 25, 2012

USGS gets airborne to map permafrost

  • Thawing of permafrost will affect northern infrastructure such as buildings and roads.
    • By DAN JOLING
    Associated Press

    ANCHORAGE — A tool used by mining companies to find mineral ores has been adapted to map frozen soils below the ground in Alaska and could be used to track the effects of global warming, according to the U.S. Geological Survey.

    The agency said an airborne survey conducted in Alaska's Yukon River drainage collected unprecedented images of the presence and absence of permafrost down to 328 feet. The study used an electromagnetic survey tool flown beneath a helicopter.


     
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