Sound Propagation Experiments Conducted under the Polar Ice Pack during the Summer of 1958

During the summer of 1958 the U. S. Navy Underwater Sound Laboratory made sound propagation measurements in the Arctic Ocean. The group velocity of the shots over an average range of 790 kyds appears to change with time, being highest in early and late summer and lowest in midsummer. The spectrum en...

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Bibliographic Details
Main Author: Hecht, Richard J
Other Authors: NAVY UNDERWATER SOUND LAB NEW LONDON CT
Format: Text
Language:English
Published: 1960
Subjects:
Physical and Dynamic Oceanography
*ARCTIC OCEAN
*UNDERWATER SOUND
POWER SPECTRA
SEA ICE
SOUND TRANSMISSION
VELOCITY
MOST PROJECT-2
Arctic
Arctic Ocean
ice pack
Sea ice
Online Access:http://www.dtic.mil/docs/citations/AD0758081
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0758081
id ftdtic:AD0758081
record_format openpolar
spelling ftdtic:AD0758081 2023-05-15T14:52:16+02:00 Sound Propagation Experiments Conducted under the Polar Ice Pack during the Summer of 1958 Hecht, Richard J NAVY UNDERWATER SOUND LAB NEW LONDON CT 1960-02-09 text/html http://www.dtic.mil/docs/citations/AD0758081 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0758081 en eng http://www.dtic.mil/docs/citations/AD0758081 Approved for public release; distribution is unlimited. DTIC AND NTIS Physical and Dynamic Oceanography *ARCTIC OCEAN *UNDERWATER SOUND POWER SPECTRA SEA ICE SOUND TRANSMISSION VELOCITY MOST PROJECT-2 Text 1960 ftdtic 2016-02-24T08:24:31Z During the summer of 1958 the U. S. Navy Underwater Sound Laboratory made sound propagation measurements in the Arctic Ocean. The group velocity of the shots over an average range of 790 kyds appears to change with time, being highest in early and late summer and lowest in midsummer. The spectrum energy curves for various-sized charges show an average slope of -17 to -24db per octave above cps. It is probable that the pack ice acting as a band rejection filter accounts for the presence of only low frequencies. The transmission loss over a range of 790 kyds averaged 103.5 db. Text Arctic Arctic Ocean ice pack Sea ice Defense Technical Information Center: DTIC Technical Reports database Arctic Arctic Ocean
institution Open Polar
collection Defense Technical Information Center: DTIC Technical Reports database
op_collection_id ftdtic
language English
topic Physical and Dynamic Oceanography
*ARCTIC OCEAN
*UNDERWATER SOUND
POWER SPECTRA
SEA ICE
SOUND TRANSMISSION
VELOCITY
MOST PROJECT-2
spellingShingle Physical and Dynamic Oceanography
*ARCTIC OCEAN
*UNDERWATER SOUND
POWER SPECTRA
SEA ICE
SOUND TRANSMISSION
VELOCITY
MOST PROJECT-2
Hecht, Richard J
Sound Propagation Experiments Conducted under the Polar Ice Pack during the Summer of 1958
topic_facet Physical and Dynamic Oceanography
*ARCTIC OCEAN
*UNDERWATER SOUND
POWER SPECTRA
SEA ICE
SOUND TRANSMISSION
VELOCITY
MOST PROJECT-2
description During the summer of 1958 the U. S. Navy Underwater Sound Laboratory made sound propagation measurements in the Arctic Ocean. The group velocity of the shots over an average range of 790 kyds appears to change with time, being highest in early and late summer and lowest in midsummer. The spectrum energy curves for various-sized charges show an average slope of -17 to -24db per octave above cps. It is probable that the pack ice acting as a band rejection filter accounts for the presence of only low frequencies. The transmission loss over a range of 790 kyds averaged 103.5 db.
author2 NAVY UNDERWATER SOUND LAB NEW LONDON CT
format Text
author Hecht, Richard J
author_facet Hecht, Richard J
author_sort Hecht, Richard J
title Sound Propagation Experiments Conducted under the Polar Ice Pack during the Summer of 1958
title_short Sound Propagation Experiments Conducted under the Polar Ice Pack during the Summer of 1958
title_full Sound Propagation Experiments Conducted under the Polar Ice Pack during the Summer of 1958
title_fullStr Sound Propagation Experiments Conducted under the Polar Ice Pack during the Summer of 1958
title_full_unstemmed Sound Propagation Experiments Conducted under the Polar Ice Pack during the Summer of 1958
title_sort sound propagation experiments conducted under the polar ice pack during the summer of 1958
publishDate 1960
url http://www.dtic.mil/docs/citations/AD0758081
http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=AD0758081
geographic Arctic
Arctic Ocean
geographic_facet Arctic
Arctic Ocean
genre Arctic
Arctic Ocean
ice pack
Sea ice
genre_facet Arctic
Arctic Ocean
ice pack
Sea ice
op_source DTIC AND NTIS
op_relation http://www.dtic.mil/docs/citations/AD0758081
op_rights Approved for public release; distribution is unlimited.
_version_ 1766323488502579200

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