UID:
kobvindex_GFZ20201118142122
Format:
iv, 9 Seiten
,
Illustrationen
Series Statement:
Research report / Cold Regions Research and Engineering Laboratory 39
Content:
Summary: An analysis of snow-cover density, temperature, and hardness data, measured over a period of several years at five stations in Alaska and six stations in the Canadian Arctic, shows the snow cover in the Canadian Archipelago to be colder, denser, and harder than in the interior of Alaska. A series of nomographs were developed to estimate average monthly snow-cover density from mean monthly air temperature and wind velocity. The nomographs are applicable for the months November through March, for the Alaskan and Canadian area north of 62°N latitude, and for elevations below 1500 ft. A comparison of observed snow-cover densities with those derived from the nomographs indicates that the method will provide a reliable regional estimate of snow-cover density. Studies of the relation between snow-cover temperature and air temperature from November through March disclosed the snow to be on the average from 4°C to 9°C warmer than the air at the Alaskan stations and 4.5°C warmer at the Canadian Archipelago stations. An investigation of snow-cover hardness revealed regional variations similar to that for density. Measured snow hardness during the period of no melting was found to be related to densities between 0.15 and 0.36 g/cm^3.
Note:
CONTENTS
Preface
Summary
Introduction
Climatic parameters which may affect arctic snow-cover density
Results of study
Regional variations in snow-cover density
Prediction of average monthly snow-cover density in the arctic from air temperature and wind velocity
Comparison of observed snow-cover density with density computed from the nomographs
Relation between snow-cover temperature and air temperature
Relation between hardness and density of the snow cover
References
In:
Research report / Cold Regions Research and Engineering Laboratory, 39
Language:
English
Keywords:
Forschungsbericht
URL:
https://hdl.handle.net/11681/2754
