Ice Thickness Distribution.

Prototype Upward Looking Sonar (ULS) instruments that monitor time series of ice draft from oceanographic moorings have been designed, built, tested and deployed in arctic waters. The measured time series recovered from these instruments reveal many geophysically significant, quantitative aspects of...

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Bibliographic Details
Main Authors: Untersteiner, Norbert, Moritz, Richard E.
Other Authors: WASHINGTON UNIV SEATTLE POLAR SCIENCE CENTER
Format: Text
Language:English
Published: 1989
Subjects:
Physical and Dynamic Oceanography
Snow
Ice and Permafrost
Acoustic Detection and Detectors
*SONAR
*SEA ICE
*UNDERSEA SURVEILLANCE
THICKNESS
DISTRIBUTION
TIME SERIES ANALYSIS
PROTOTYPES
ARCTIC REGIONS
MOORING
OCEANOGRAPHIC EQUIPMENT
ULS(UPWARD LOOKING SONAR)
Arctic
Ice
permafrost
Sea ice
Online Access:http://www.dtic.mil/docs/citations/ADA298898
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA298898
Description
Summary:Prototype Upward Looking Sonar (ULS) instruments that monitor time series of ice draft from oceanographic moorings have been designed, built, tested and deployed in arctic waters. The measured time series recovered from these instruments reveal many geophysically significant, quantitative aspects of the sea ice draft distribution that have not been measured or documented previously. The utility of the basic concept, and the soundness of the ULS Mark-1 design are confirmed by the data. Tests in the laboratory and in the field suggest opportunities for modest design changes that would improve the performance of the ULS. Proposed further work includes implementation of design modifications, detailed analysis of the ULS time series, redeployment of the prototype units, and construction and deployment of three new ULS units

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