Accession Number : AD0653180

Title :   GROUND TEMPERATURE DATA OF BIOLOGICAL SIGNIFICANCE.

Descriptive Note : Final rept., Sep 63-Jun 66,

Corporate Author : ARCTIC AEROMEDICAL LAB FORT WAINWRIGHT ALASKA

Personal Author(s) : Lee,John F.

Report Date : APR 1967

Pagination or Media Count : 15

Abstract : Ground temperature studies were initiated at Fairbanks, Alaska to prove data for predicting temperatures of survival shelters warmed by radiation from the earth. Some of this data is presented here in the hope it may be interesting to investigators of mammalian microclimates. Holes to depths of 10 ft were instrumented with thermistors during September 1963 and readings were taken at regular intervals until July 1966. Insulated shelters were placed in the vicinity of instrumented holes and temperature data were obtained. Temperatures were also taken inside shelters occupied by human subjects. Instrumented shelters were placed on frozen Chena River and data obtained while unoccupied and during occupancy. Nearby thermistors were frozen to river ice under snow cover and with snow removed. Temperatures of ground surface beneath snow were -6C when ambient air was -46C. When ambient air was -40C, temperatures inside shelters were as high as -8C and when shelters were occupied temperatures were over +15C. With ambient air below -40C, temperature in unoccupied shelter on the river was -9C, under snow -8C, and where snow was removed -30C. (Author)

Descriptors :   (*SHELTERS, ARCTIC REGIONS), THERMISTORS, MAMMALS, HIBERNATION, THERMAL INSULATION, INSTRUMENTATION, SURVIVAL(PERSONNEL), SNOW, PERMAFROST, TEMPERATURE, SOILS, ALASKA, CLIMATE

Subject Categories : Biology
      Snow, Ice and Permafrost
      Structural Engineering and Building Technology
      Escape, Rescue and Survival

Distribution Statement : APPROVED FOR PUBLIC RELEASE