Environmental Correlates of Pack Ice Noise

Low-frequency ambient noise under pack ice of the central Arctic Ocean has long-term variations(periods greater than 1 h)which correlate highly with composite measures of stress applied to the ice by wind, current, and drift. These composites are the horizontal ice stress and the stress moment, and...

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Bibliographic Details
Main Authors: Makris, Nicholas C., Dyer, Ira
Other Authors: MASSACHUSETTS INST OF TECH CAMBRIDGE DEPT OF OCEAN ENGINEERING
Format: Text
Language:English
Published: 1986
Subjects:
Snow
Ice and Permafrost
Acoustics
*PACK ICE
*AMBIENT NOISE
OCEAN CURRENTS
WIND
ATMOSPHERIC TEMPERATURE
MOMENTS
METEOROLOGICAL DATA
OCEANOGRAPHIC DATA
CORRELATION
DRIFT
HORIZONTAL ORIENTATION
NOISE
OCEAN ENVIRONMENTS
LOW FREQUENCY
ARCTIC OCEAN
UNDERICE
STRESSES
REPRINTS
Arctic
Arctic Ocean
Ice
permafrost
Online Access:http://www.dtic.mil/docs/citations/ADA196336
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA196336
Description
Summary:Low-frequency ambient noise under pack ice of the central Arctic Ocean has long-term variations(periods greater than 1 h)which correlate highly with composite measures of stress applied to the ice by wind, current, and drift. These composites are the horizontal ice stress and the stress moment, and are derived from meteorological and oceanographic data observed simultaneously with the noise. Atmospheric cooling, a known high correlate of midfrequency noise under the ice, is not important at low frequencies. Keywords: Underice ambient noise; Meteorological data; Ocean currents. Reprints. Pub. in Jnl. of the Acoustic Society of America, v79 n5 p1434-1440 May 1986. No copies furnished by DTIC/NTIS.

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