Hydrologic Conditions in the Santa Anna and Franz Victoria Troughs
The optimal source depth for transarctic transmissions and acoustic thermometry over transarctic paths, depends on the sound speed profile at the transmitting site. Furthermore, for analysis and interpretation of acoustic data in the experiment, it is necessary to have information on long-term varia...
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ftdtic:ADA348967 2023-05-15T14:56:07+02:00 Hydrologic Conditions in the Santa Anna and Franz Victoria Troughs Gavrilov, A. N. Pisarev, S. V. MARINE SCIENCE INTERNATIONAL CORP 1996 text/html http://www.dtic.mil/docs/citations/ADA348967 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA348967 en eng http://www.dtic.mil/docs/citations/ADA348967 APPROVED FOR PUBLIC RELEASE DTIC Physical and Dynamic Oceanography Acoustics *SOUND TRANSMISSION *MARINE CLIMATOLOGY *ARCTIC OCEAN ATMOSPHERIC TEMPERATURE BATHYMETRY SEASONAL VARIATIONS SALINITY UNDERWATER ACOUSTICS ACOUSTIC VELOCITY ACOUSTIC DATA OCEAN TIDES TROUGHS SANTA ANNA TROUGH FRANZ VICTORIA TROUGH SERDP COLLECTION SERDP(STRATEGIC ENVIRONMENTAL RESEARCH AND DEVELOPMENT PROGRAM) Text 1996 ftdtic 2016-02-20T01:13:16Z The optimal source depth for transarctic transmissions and acoustic thermometry over transarctic paths, depends on the sound speed profile at the transmitting site. Furthermore, for analysis and interpretation of acoustic data in the experiment, it is necessary to have information on long-term variations of the sound speed profile in the vicinity of the source. Such variations, like seasonal changes, tidal and internal waves, and intrusions, disturb the modal eigenfunctions and hence the excitation coefficients, which can lead to considerable fluctuations in the modal amplitudes at the receiving site. If these fluctuations are considerable, they may complicate the detection of climatic changes in the mean ice thickness reflected in variations of the sound speed also lead to variations in the modal propagation times, which produce noise in the measurements of climate and basin-scale changes in Arctic water. Text Arctic Arctic Ocean 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 Acoustics *SOUND TRANSMISSION *MARINE CLIMATOLOGY *ARCTIC OCEAN ATMOSPHERIC TEMPERATURE BATHYMETRY SEASONAL VARIATIONS SALINITY UNDERWATER ACOUSTICS ACOUSTIC VELOCITY ACOUSTIC DATA OCEAN TIDES TROUGHS SANTA ANNA TROUGH FRANZ VICTORIA TROUGH SERDP COLLECTION SERDP(STRATEGIC ENVIRONMENTAL RESEARCH AND DEVELOPMENT PROGRAM) |
spellingShingle |
Physical and Dynamic Oceanography Acoustics *SOUND TRANSMISSION *MARINE CLIMATOLOGY *ARCTIC OCEAN ATMOSPHERIC TEMPERATURE BATHYMETRY SEASONAL VARIATIONS SALINITY UNDERWATER ACOUSTICS ACOUSTIC VELOCITY ACOUSTIC DATA OCEAN TIDES TROUGHS SANTA ANNA TROUGH FRANZ VICTORIA TROUGH SERDP COLLECTION SERDP(STRATEGIC ENVIRONMENTAL RESEARCH AND DEVELOPMENT PROGRAM) Gavrilov, A. N. Pisarev, S. V. Hydrologic Conditions in the Santa Anna and Franz Victoria Troughs |
topic_facet |
Physical and Dynamic Oceanography Acoustics *SOUND TRANSMISSION *MARINE CLIMATOLOGY *ARCTIC OCEAN ATMOSPHERIC TEMPERATURE BATHYMETRY SEASONAL VARIATIONS SALINITY UNDERWATER ACOUSTICS ACOUSTIC VELOCITY ACOUSTIC DATA OCEAN TIDES TROUGHS SANTA ANNA TROUGH FRANZ VICTORIA TROUGH SERDP COLLECTION SERDP(STRATEGIC ENVIRONMENTAL RESEARCH AND DEVELOPMENT PROGRAM) |
description |
The optimal source depth for transarctic transmissions and acoustic thermometry over transarctic paths, depends on the sound speed profile at the transmitting site. Furthermore, for analysis and interpretation of acoustic data in the experiment, it is necessary to have information on long-term variations of the sound speed profile in the vicinity of the source. Such variations, like seasonal changes, tidal and internal waves, and intrusions, disturb the modal eigenfunctions and hence the excitation coefficients, which can lead to considerable fluctuations in the modal amplitudes at the receiving site. If these fluctuations are considerable, they may complicate the detection of climatic changes in the mean ice thickness reflected in variations of the sound speed also lead to variations in the modal propagation times, which produce noise in the measurements of climate and basin-scale changes in Arctic water. |
author2 |
MARINE SCIENCE INTERNATIONAL CORP |
format |
Text |
author |
Gavrilov, A. N. Pisarev, S. V. |
author_facet |
Gavrilov, A. N. Pisarev, S. V. |
author_sort |
Gavrilov, A. N. |
title |
Hydrologic Conditions in the Santa Anna and Franz Victoria Troughs |
title_short |
Hydrologic Conditions in the Santa Anna and Franz Victoria Troughs |
title_full |
Hydrologic Conditions in the Santa Anna and Franz Victoria Troughs |
title_fullStr |
Hydrologic Conditions in the Santa Anna and Franz Victoria Troughs |
title_full_unstemmed |
Hydrologic Conditions in the Santa Anna and Franz Victoria Troughs |
title_sort |
hydrologic conditions in the santa anna and franz victoria troughs |
publishDate |
1996 |
url |
http://www.dtic.mil/docs/citations/ADA348967 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA348967 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Ocean |
genre_facet |
Arctic Arctic Ocean |
op_source |
DTIC |
op_relation |
http://www.dtic.mil/docs/citations/ADA348967 |
op_rights |
APPROVED FOR PUBLIC RELEASE |
_version_ |
1766328155321139200 |