A Feasibility Study of Ocean Acoustic Tomography in the Barents Sea
The purpose of this thesis is to explore the feasibility of conducting vertical array ocean acoustic tomography in the Barents Sea. This effort in support of the Barents Sea Acoustic Tomography Transmission Test experiment to be carried out in the summer of 1992 by NPS and Woods Hole Oceanographic I...
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ftdtic:ADA245171 2023-05-15T15:37:59+02:00 A Feasibility Study of Ocean Acoustic Tomography in the Barents Sea Emblidge, John M. NAVAL POSTGRADUATE SCHOOL MONTEREY CA 1991-09 text/html http://www.dtic.mil/docs/citations/ADA245171 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA245171 en eng http://www.dtic.mil/docs/citations/ADA245171 Approved for public release; distribution is unlimited. DTIC AND NTIS Physical and Dynamic Oceanography Acoustic Detection and Detectors *COMPUTERIZED SIMULATION SCATTERING ENVIRONMENTS LITERATURE SURVEYS ACOUSTIC WAVES ARRAYS THESES TRANSMITTANCE FEASIBILITY STUDIES SIGNALS RECEIVERS SOUND TRANSMISSION CLIMATE LAUNCHING LEVEL(QUANTITY) ACOUSTIC SIGNALS ACOUSTICS LOSSES TOMOGRAPHY OCEANS RAY TRACING BARENTS SEA BOTTOM HAMILTONIAN FUNCTIONS OCEANOGRAPHY SOURCES *SOUNDING *ACOUSTIC TOMOGRAPHY *BARENTS SEA HARPO(HAMILTONIAN ACOUSTIC RAY TRACING PROGRAM FOR THE OCEAN) Text 1991 ftdtic 2016-02-22T18:21:37Z The purpose of this thesis is to explore the feasibility of conducting vertical array ocean acoustic tomography in the Barents Sea. This effort in support of the Barents Sea Acoustic Tomography Transmission Test experiment to be carried out in the summer of 1992 by NPS and Woods Hole Oceanographic Institution (WHOI). This study is conducted in two stages: a literature search and a computer simulation of acoustic ray propagation in the Barents Sea. The literature search gathered oceanographic, geophysical, and climatological data on the Barents Sea. These data were used to form a picture of the oceanographic conditions expected to exist in the Barents Sea in August and to estimate the acoustic bottom, surface and scattering losses that the tomographic signal could be subjected to. Also the noise levels in the Barents Sea were determined from these data. The computer simulation of tomographic transmission in the Barents Sea was conducted using HARPO (Hamiltonian Acoustic Raytracing Program for the Ocean). This program provided raytraces for acoustic rays launched between 0 and 25 from one of the three planned sources to the receiver array. This analysis determined that tomography in the Barents Sea is possible, and that the planned source level of the sources will be large enough to overcome the environmental losses. Text Barents Sea Defense Technical Information Center: DTIC Technical Reports database Barents Sea |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
op_collection_id |
ftdtic |
language |
English |
topic |
Physical and Dynamic Oceanography Acoustic Detection and Detectors *COMPUTERIZED SIMULATION SCATTERING ENVIRONMENTS LITERATURE SURVEYS ACOUSTIC WAVES ARRAYS THESES TRANSMITTANCE FEASIBILITY STUDIES SIGNALS RECEIVERS SOUND TRANSMISSION CLIMATE LAUNCHING LEVEL(QUANTITY) ACOUSTIC SIGNALS ACOUSTICS LOSSES TOMOGRAPHY OCEANS RAY TRACING BARENTS SEA BOTTOM HAMILTONIAN FUNCTIONS OCEANOGRAPHY SOURCES *SOUNDING *ACOUSTIC TOMOGRAPHY *BARENTS SEA HARPO(HAMILTONIAN ACOUSTIC RAY TRACING PROGRAM FOR THE OCEAN) |
spellingShingle |
Physical and Dynamic Oceanography Acoustic Detection and Detectors *COMPUTERIZED SIMULATION SCATTERING ENVIRONMENTS LITERATURE SURVEYS ACOUSTIC WAVES ARRAYS THESES TRANSMITTANCE FEASIBILITY STUDIES SIGNALS RECEIVERS SOUND TRANSMISSION CLIMATE LAUNCHING LEVEL(QUANTITY) ACOUSTIC SIGNALS ACOUSTICS LOSSES TOMOGRAPHY OCEANS RAY TRACING BARENTS SEA BOTTOM HAMILTONIAN FUNCTIONS OCEANOGRAPHY SOURCES *SOUNDING *ACOUSTIC TOMOGRAPHY *BARENTS SEA HARPO(HAMILTONIAN ACOUSTIC RAY TRACING PROGRAM FOR THE OCEAN) Emblidge, John M. A Feasibility Study of Ocean Acoustic Tomography in the Barents Sea |
topic_facet |
Physical and Dynamic Oceanography Acoustic Detection and Detectors *COMPUTERIZED SIMULATION SCATTERING ENVIRONMENTS LITERATURE SURVEYS ACOUSTIC WAVES ARRAYS THESES TRANSMITTANCE FEASIBILITY STUDIES SIGNALS RECEIVERS SOUND TRANSMISSION CLIMATE LAUNCHING LEVEL(QUANTITY) ACOUSTIC SIGNALS ACOUSTICS LOSSES TOMOGRAPHY OCEANS RAY TRACING BARENTS SEA BOTTOM HAMILTONIAN FUNCTIONS OCEANOGRAPHY SOURCES *SOUNDING *ACOUSTIC TOMOGRAPHY *BARENTS SEA HARPO(HAMILTONIAN ACOUSTIC RAY TRACING PROGRAM FOR THE OCEAN) |
description |
The purpose of this thesis is to explore the feasibility of conducting vertical array ocean acoustic tomography in the Barents Sea. This effort in support of the Barents Sea Acoustic Tomography Transmission Test experiment to be carried out in the summer of 1992 by NPS and Woods Hole Oceanographic Institution (WHOI). This study is conducted in two stages: a literature search and a computer simulation of acoustic ray propagation in the Barents Sea. The literature search gathered oceanographic, geophysical, and climatological data on the Barents Sea. These data were used to form a picture of the oceanographic conditions expected to exist in the Barents Sea in August and to estimate the acoustic bottom, surface and scattering losses that the tomographic signal could be subjected to. Also the noise levels in the Barents Sea were determined from these data. The computer simulation of tomographic transmission in the Barents Sea was conducted using HARPO (Hamiltonian Acoustic Raytracing Program for the Ocean). This program provided raytraces for acoustic rays launched between 0 and 25 from one of the three planned sources to the receiver array. This analysis determined that tomography in the Barents Sea is possible, and that the planned source level of the sources will be large enough to overcome the environmental losses. |
author2 |
NAVAL POSTGRADUATE SCHOOL MONTEREY CA |
format |
Text |
author |
Emblidge, John M. |
author_facet |
Emblidge, John M. |
author_sort |
Emblidge, John M. |
title |
A Feasibility Study of Ocean Acoustic Tomography in the Barents Sea |
title_short |
A Feasibility Study of Ocean Acoustic Tomography in the Barents Sea |
title_full |
A Feasibility Study of Ocean Acoustic Tomography in the Barents Sea |
title_fullStr |
A Feasibility Study of Ocean Acoustic Tomography in the Barents Sea |
title_full_unstemmed |
A Feasibility Study of Ocean Acoustic Tomography in the Barents Sea |
title_sort |
feasibility study of ocean acoustic tomography in the barents sea |
publishDate |
1991 |
url |
http://www.dtic.mil/docs/citations/ADA245171 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA245171 |
geographic |
Barents Sea |
geographic_facet |
Barents Sea |
genre |
Barents Sea |
genre_facet |
Barents Sea |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA245171 |
op_rights |
Approved for public release; distribution is unlimited. |
_version_ |
1766368671131762688 |