ALBEDO MEASUREMENTS OF AN ARCTIC ICE COVER FROM HIGH TOWERS

Radiometers, suspended at a height of 15 m between two towers anchored to the bottom of the ice cover, have been used to measure the average or integrated albedo of the surface. The work was carried out in May 1967 at Tanquary Fiord, Ellesmere Island during the period when the surface of the ice cov...

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Bibliographic Details
Main Author: Langleben,M. P.
Other Authors: MCGILL UNIV MONTREAL (QUEBEC) DEPT OF PHYSICS
Format: Text
Language:English
Published: 1967
Subjects:
Snow
Ice and Permafrost
(*ARCTIC REGIONS
ICE)
(*ICE
ALBEDO)
RADIOMETERS
TOWERS
SURFACES
MELTING
ARCTIC OCEAN
CANADA
Arctic
Arctic Ocean
Canada
Ellesmere Island
Tanquary Fiord
albedo
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/AD0699288
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0699288
Description
Summary:Radiometers, suspended at a height of 15 m between two towers anchored to the bottom of the ice cover, have been used to measure the average or integrated albedo of the surface. The work was carried out in May 1967 at Tanquary Fiord, Ellesmere Island during the period when the surface of the ice cover was undergoing rapid change. The albedo was observed to have a value of almost 1.0, for a fresh snow cover, and about 0.8 for a weathered snow cover. It decreased to 0.6 as the wind partially cleared the surface of snow and gradually to 0.5 with further deterioration of the snow. The onset of melting, produced when the daily mean temperature exceeded 0C, rapidly lowered the albedo to a value of about 0.3. (Author) Revision of report dated 15 Aug 67.

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