USGS: Science Topics: permafrost

Science Topics

Permafrost

Rocks and deposits in which the interstitial waters remain perennially frozen.

Subtopics:
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Results 1 - 2 of 2 listed alphabetically [list by similarity]

A promising tool for subsurface permafrost mapping-An application of airborne geophysics from the Yukon River Basin, Alaska [More info]: Airborne electromagnetic surveying is used to estimate the character of the permafrost by measuring and monitoring the electrical resistivity, which is affected by lithology, temperature, water, and ice.
The Yukon River Basin Active Layer Network: A cooperative project between the Yukon River Inter-Tribal Watershed Council and the U.S. Geological Survey [More info]: Monitoring soil temperature, soil moisture, air temperature, and overall thickness of the soil and sediment that is above the permafrost, therefore undergoing freeze-thaw cycles. Climate change may affect this active layer; we want to know how it does.

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U.S. Department of the Interior | U.S. Geological Survey
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