Sublimation and Its Control in the CRREL Permafrost Tunnel.

Abstract

The U.S. Army Cold Regions Research and Engineering Laboratory's permafrost tunnel at Fox, near Fairbanks, Alaska, was used to investigate the sublimation process in permafrost silt. The rate of increase in thickness of the dried silt layer from sublimation was found to be approximately 0.023 in. (0.058 cm) in 1 month and closely related to the relative humidity in the tunnel. Sublimation prevention studies consisted of evaluation of various membranes to impede the sublimation. Ice was found to show promise as an easily installed, effective membrane when applied as a fine water mist and subsequently left to freeze. (Author)

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1981
Accession Number
ADA101555

Entities

People

  • E. W. Wellen
  • N. I. Johansen
  • P. C. Chalich

Organizations

  • University of Alaska Fairbanks

Tags

Communities of Interest

  • Human Systems

DTIC Thesaurus Topics

  • Army
  • Cold Regions
  • Dielectric Polymers
  • Engineering
  • Grain Size
  • Humidity
  • Hydrocarbons
  • Linings
  • Materials
  • Measurement
  • Moisture
  • Moisture Content
  • New Hampshire
  • Organic Materials
  • Petroleum
  • Refrigeration Systems
  • Regions

Readers

  • Environmental Engineering
  • Mathematics or Statistics
  • Polar and Arctic Studies