Depth-Time-Temperature Relationships of Ice Crystal Growth in Polar Glaciers.

The growth of ice crystals as a function of depth and time in polar firn and glacier ice has been investigated at a number of locations in Antarctica and Greenland. Thin sections of snow and ice were used to measure crystal size variations. Crystal growth rates are strongly temperature dependent wit...

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Bibliographic Details
Main Author: Gow,Anthony J.
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1971
Subjects:
Snow
Ice and Permafrost
(*ICE
CRYSTAL GROWTH)
(*GLACIERS
*POLAR REGIONS)
DEPTH FINDING
TEMPERATURE
CORRELATION TECHNIQUES
ANTARCTIC REGIONS
GREENLAND
CAMP CENTURY
GLACIOLOGY
ICE REPORTING
LAND ICE
Antarctic
Greenland
Antarc*
Antarctica
glacier
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/AD0733318
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0733318
Description
Summary:The growth of ice crystals as a function of depth and time in polar firn and glacier ice has been investigated at a number of locations in Antarctica and Greenland. Thin sections of snow and ice were used to measure crystal size variations. Crystal growth rates are strongly temperature dependent with growth being very much retarded at the lower englacial temperatures. At Camp Century, Greenland, where the firn temperature is -24C (constant below 10 m depth) crystals grow approximately 23 times faster than at Plateau Station, Antarctica, where the in situ temperature is -57C. (Author)

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