Electromagnetic Induction Sounding of Sea Ice Thickness

Field results from a man-portable electromagnetic induction sounding instrument, with special plug-in data processing modules for the remote measurement of sea ice thickness, are discussed. The field trials indicate that the instrument was capable of estimating undeformed sea ice thickness, with a s...

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Bibliographic Details
Main Authors: Kovacs, Austin, Diemand, Deborah, Bayer, John J., Jr
Other Authors: COLD REGIONS RESEARCH AND ENGINEERING LAB HANOVER NH
Format: Text
Language:English
Published: 1996
Subjects:
Snow
Ice and Permafrost
Magnetic & Electric Fld Detection & Detectors
*SEA ICE
THICKNESS
ELECTRIC FIELDS
ELECTRICAL CONDUCTIVITY
ELECTROMAGNETIC INDUCTION
REMOTE DETECTION
Ice
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA286884
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA286884
Description
Summary:Field results from a man-portable electromagnetic induction sounding instrument, with special plug-in data processing modules for the remote measurement of sea ice thickness, are discussed. The field trials indicate that the instrument was capable of estimating undeformed sea ice thickness, with a snow cover, generally within about 5% of the drill hole measured thicknesses from about 1.25 to 4.5 m. No ice under 1.25 m was sounded in this study. Instrument thickness determinations of multiyear sea ice over about 4.5 m thick showed larger deviation from the drill hole snow and ice thickness measurement. It is proposed that the undulating multiyear sea ice relief is the major cause of the EM deviation. (Author)

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