Islands of Grounded Sea Ice

Large areas of grounded sea ice have been reported by early arctic explorers and more recently by the U.S. Coast Guard. The ESSA, ERTS, NOAA and DMSP satellites now provide multispectral imagery with sufficiently high resolution to allow detailed sequential observations to be made of the movement an...

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Bibliographic Details
Main Authors: Kovacs,A., Gow,A. J., Dehn,W. F.
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER N H
Format: Text
Language:English
Published: 1976
Subjects:
Snow
Ice and Permafrost
Unmanned Spacecraft
*SEA ICE
*ICE ISLANDS
ENVIRONMENTS
DRIFT
MULTISPECTRAL
AERIAL PHOTOGRAPHY
SATELLITE TRACKING SYSTEMS
CHUKCHI SEA
PACK ICE
Arctic
Chukchi Sea
Chukchi
Ice
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA025257
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA025257
Description
Summary:Large areas of grounded sea ice have been reported by early arctic explorers and more recently by the U.S. Coast Guard. The ESSA, ERTS, NOAA and DMSP satellites now provide multispectral imagery with sufficiently high resolution to allow detailed sequential observations to be made of the movement and spatial extent of arctic sea ice. This report discusses the location, formation and decay of five large (greater than 30 sq km) islands of grounded sea ice in the southern Chukchi Sea as observed for an extended period of time using satellite imagery. Measurements of the bathymetry around one grounded sea ice feature are presented along with observations made and photos taken from the ice surface. The potential use of these sea ice islands as research stations is also discussed. (Author)

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