Volume Reverberation in the Marginal Ice Zone of Fram Strait

Many measurements of volume reverberation have been conducted in the open oceans of the world. In May 1988, the Naval Research Laboratory at Stennis Space Center (NRL-SSC) had the opportunity to investigate volume reverberation in a unique region: the marginal ice zone (MIZ) of the Fram Strait betwe...

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Bibliographic Details
Main Authors: Wilson, Marcia A., Love, Richard H.
Other Authors: NAVAL RESEARCH LAB STENNIS SPACE CENTER MS
Format: Text
Language:English
Published: 1993
Subjects:
Snow
Ice and Permafrost
Acoustics
*ACOUSTIC SCATTERING
*REVERBERATION
*SEA ICE
FREQUENCY
REPRINTS
SCATTERING
ACOUSTIC WAVES
DEPTH
PROFILES
NORWEGIAN SEA
STRAITS
ARCTIC OCEAN
ICELAND
CHUKCHI SEA
DENMARK
GREENLAND
BAYS
ACOUSTIC PROPERTIES
COLD WATER
NEWFOUNDLAND(PROVINCE)
LABRADOR SEA
FRAM STRAIT
BAFFIN BAY
MARGINAL ICE ZONES
UNDERWATER ACOUSTICS
ICE
PULSES
WAVE PROPAGATION
NAVAL RESEARCH
TRANSDUCERS
OCEANS
PE62435N
WUDN496443
Arctic
Arctic Ocean
Baffin Bay
Chukchi Sea
Greenland
Newfoundland
Norwegian Sea
Baffin
Chukchi
Davis Strait
Denmark Strait
Fram Strait
Ice
Iceland
Labrador Sea
permafrost
Sea ice
Spitsbergen
Online Access:http://www.dtic.mil/docs/citations/ADA275344
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA275344
Description
Summary:Many measurements of volume reverberation have been conducted in the open oceans of the world. In May 1988, the Naval Research Laboratory at Stennis Space Center (NRL-SSC) had the opportunity to investigate volume reverberation in a unique region: the marginal ice zone (MIZ) of the Fram Strait between Spitsbergen and Greenland. Measurements were made from a drifting ice camp at three locations over a four day period. Volume scattering strength versus depth profiles were obtained at frequencies from 3.5 to 50 kHz using short CW pulses from a suite of downward and upward looking transducers. Results show that scattering layers occurred from about 100 to 200 m and 400 to 500 m at each location, with some variability in strength at the different locations. A comparison with volume scattering strengths reported from other cold water regions shows that values observed in the Fram Strait MIZ were lower than those reported at similar frequencies from open waters of the Norwegian Sea, Labrador Sea, and northern Baffin Bay, and comparable to those in the Denmark Strait, Davis Strait, Chukchi Sea MIZ, and northeast of Iceland. Acoustic propagation, Sea ice, Arctic Ocean. Availability: Pub. in Ocean Reverberation, p285-290 1993.

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