Updated Deep-Tow Acoustics/Geophysics System Compressional Velocity Database
This memorandum report describes the Deep-Tow Acoustics/Geophysics System (DTAGS) compressional velocity database, a compilation of compressional velocity-layer thickness functions derived from DTAGS deep-tow multichannel seismic data. Geologic environments represented by the velocity functions incl...
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ftdtic:ADA275477 2023-05-15T17:12:05+02:00 Updated Deep-Tow Acoustics/Geophysics System Compressional Velocity Database Rowe, Mary M. Gettrust, Joseph F. NAVAL RESEARCH LAB STENNIS SPACE CENTER MS 1994-01-12 text/html http://www.dtic.mil/docs/citations/ADA275477 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA275477 en eng http://www.dtic.mil/docs/citations/ADA275477 Approved for public release; distribution is unlimited. Document partially illegible. DTIC AND NTIS Geology Geochemistry and Mineralogy Seismology Acoustic Detection and Detectors *SEISMIC DATA *ACOUSTICS *GEOPHYSICS *SEDIMENTATION *HYDROPHONES VELOCITY DATA BASES FREQUENCY THICKNESS ACOUSTIC VELOCITY MULTICHANNEL OCEAN BOTTOM SEDIMENTS SEISMIC VELOCITY METHANE PROFILES SAMPLING LAYERS TOWED ARRAYS HYDRATES DEPOSITS DTAGS(DEEP TOW ACOUSTICS/GEOPHYSIC SYSTEM) PE62435N PE61135N WUDN259007 WUDN250051 WU74507004 Text 1994 ftdtic 2016-02-22T03:49:00Z This memorandum report describes the Deep-Tow Acoustics/Geophysics System (DTAGS) compressional velocity database, a compilation of compressional velocity-layer thickness functions derived from DTAGS deep-tow multichannel seismic data. Geologic environments represented by the velocity functions included in this database include thick turbidite deposits, thick sediment basin deposits, sediment containing methane hydrate, and thin sediments overlying young basement. Horizontal sampling frequency (distance between velocity profiles) of the database ranges from 45 to 230 m. Vertical sampling frequency (layer thickness) ranges from 5 to 300 m. These compressional velocity-layer thickness profiles were determined from DTAGS multichannel seismic data using standard semblance velocity analysis procedures. The ASCII files containing compressional velocity data are included on an MSDOS 3-1/2 in. diskette, which may be ordered from the authors using the form included with this report. Included on the disk with the data files are two text files containing a description of the data file format and a list of the locations where the data were collected. As DTAGS data continue to be collected and processed, this database will be updated to include all available compressional velocity functions. Text Methane hydrate Defense Technical Information Center: DTIC Technical Reports database |
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Open Polar |
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Defense Technical Information Center: DTIC Technical Reports database |
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ftdtic |
language |
English |
topic |
Geology Geochemistry and Mineralogy Seismology Acoustic Detection and Detectors *SEISMIC DATA *ACOUSTICS *GEOPHYSICS *SEDIMENTATION *HYDROPHONES VELOCITY DATA BASES FREQUENCY THICKNESS ACOUSTIC VELOCITY MULTICHANNEL OCEAN BOTTOM SEDIMENTS SEISMIC VELOCITY METHANE PROFILES SAMPLING LAYERS TOWED ARRAYS HYDRATES DEPOSITS DTAGS(DEEP TOW ACOUSTICS/GEOPHYSIC SYSTEM) PE62435N PE61135N WUDN259007 WUDN250051 WU74507004 |
spellingShingle |
Geology Geochemistry and Mineralogy Seismology Acoustic Detection and Detectors *SEISMIC DATA *ACOUSTICS *GEOPHYSICS *SEDIMENTATION *HYDROPHONES VELOCITY DATA BASES FREQUENCY THICKNESS ACOUSTIC VELOCITY MULTICHANNEL OCEAN BOTTOM SEDIMENTS SEISMIC VELOCITY METHANE PROFILES SAMPLING LAYERS TOWED ARRAYS HYDRATES DEPOSITS DTAGS(DEEP TOW ACOUSTICS/GEOPHYSIC SYSTEM) PE62435N PE61135N WUDN259007 WUDN250051 WU74507004 Rowe, Mary M. Gettrust, Joseph F. Updated Deep-Tow Acoustics/Geophysics System Compressional Velocity Database |
topic_facet |
Geology Geochemistry and Mineralogy Seismology Acoustic Detection and Detectors *SEISMIC DATA *ACOUSTICS *GEOPHYSICS *SEDIMENTATION *HYDROPHONES VELOCITY DATA BASES FREQUENCY THICKNESS ACOUSTIC VELOCITY MULTICHANNEL OCEAN BOTTOM SEDIMENTS SEISMIC VELOCITY METHANE PROFILES SAMPLING LAYERS TOWED ARRAYS HYDRATES DEPOSITS DTAGS(DEEP TOW ACOUSTICS/GEOPHYSIC SYSTEM) PE62435N PE61135N WUDN259007 WUDN250051 WU74507004 |
description |
This memorandum report describes the Deep-Tow Acoustics/Geophysics System (DTAGS) compressional velocity database, a compilation of compressional velocity-layer thickness functions derived from DTAGS deep-tow multichannel seismic data. Geologic environments represented by the velocity functions included in this database include thick turbidite deposits, thick sediment basin deposits, sediment containing methane hydrate, and thin sediments overlying young basement. Horizontal sampling frequency (distance between velocity profiles) of the database ranges from 45 to 230 m. Vertical sampling frequency (layer thickness) ranges from 5 to 300 m. These compressional velocity-layer thickness profiles were determined from DTAGS multichannel seismic data using standard semblance velocity analysis procedures. The ASCII files containing compressional velocity data are included on an MSDOS 3-1/2 in. diskette, which may be ordered from the authors using the form included with this report. Included on the disk with the data files are two text files containing a description of the data file format and a list of the locations where the data were collected. As DTAGS data continue to be collected and processed, this database will be updated to include all available compressional velocity functions. |
author2 |
NAVAL RESEARCH LAB STENNIS SPACE CENTER MS |
format |
Text |
author |
Rowe, Mary M. Gettrust, Joseph F. |
author_facet |
Rowe, Mary M. Gettrust, Joseph F. |
author_sort |
Rowe, Mary M. |
title |
Updated Deep-Tow Acoustics/Geophysics System Compressional Velocity Database |
title_short |
Updated Deep-Tow Acoustics/Geophysics System Compressional Velocity Database |
title_full |
Updated Deep-Tow Acoustics/Geophysics System Compressional Velocity Database |
title_fullStr |
Updated Deep-Tow Acoustics/Geophysics System Compressional Velocity Database |
title_full_unstemmed |
Updated Deep-Tow Acoustics/Geophysics System Compressional Velocity Database |
title_sort |
updated deep-tow acoustics/geophysics system compressional velocity database |
publishDate |
1994 |
url |
http://www.dtic.mil/docs/citations/ADA275477 http://oai.dtic.mil/oai/oai?&verb=getRecord&metadataPrefix=html&identifier=ADA275477 |
genre |
Methane hydrate |
genre_facet |
Methane hydrate |
op_source |
DTIC AND NTIS |
op_relation |
http://www.dtic.mil/docs/citations/ADA275477 |
op_rights |
Approved for public release; distribution is unlimited. Document partially illegible. |
_version_ |
1766068850131992576 |