3D high-resolution acoustic imaging of the sub-seabed
3D high-resolution acoustic imaging of the sub-seabed
Chirp sub-bottom profilers are marine acoustic devices that use a known and repeatable frequency-modulated source signature to produce vertical seismic reflection cross-sections of the sub-seabed. Here a 3D Chirp system is described that operates in the frequency range of 1.5–13 kHz, to produce a three-dimensional image of the sub-seabed, with typical penetration of 10–30 m and decimetric horizontal and vertical resolution. The system design incorporates a rigid frame that contains the Chirp source array together with 60 receiver elements, with positioning provided by an integrated real-time-kinematic (RTK) global positioning system (GPS). The system can be surface towed from a small survey vessel and can be applied to targets of marine geological, engineering, archaeological and defence interest. Data acquisition and processing are described for a case study which images a buried engineering structure in the Port of Southampton.
chirp, 3D chirp, 3D seismics, high-resolution seismics
262-272
Gutowski, Martin
cd31d0d7-2bcc-4c54-8b33-610ce765d7e5
Bull, Jonathan M.
c27d4f77-9226-4604-a638-0b66f7b39926
Dix, Justin K.
3c493ba2-5057-44f2-867f-88e5990efd0a
Henstock, Timothy J.
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Hogarth, Peter
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Hillier, Tom
c004fd6e-6316-4ea2-847b-36903227a944
Leighton, Timothy G.
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White, Paul R.
2dd2477b-5aa9-42e2-9d19-0806d994eaba
March 2008
Gutowski, Martin
cd31d0d7-2bcc-4c54-8b33-610ce765d7e5
Bull, Jonathan M.
c27d4f77-9226-4604-a638-0b66f7b39926
Dix, Justin K.
3c493ba2-5057-44f2-867f-88e5990efd0a
Henstock, Timothy J.
4aeffe81-2725-435c-ada6-1c2b4bb8b37f
Hogarth, Peter
655cda79-d358-4f19-9ac1-080d358db76e
Hillier, Tom
c004fd6e-6316-4ea2-847b-36903227a944
Leighton, Timothy G.
3e5262ce-1d7d-42eb-b013-fcc5c286bbae
White, Paul R.
2dd2477b-5aa9-42e2-9d19-0806d994eaba
Gutowski, Martin, Bull, Jonathan M., Dix, Justin K., Henstock, Timothy J., Hogarth, Peter, Hillier, Tom, Leighton, Timothy G. and White, Paul R.
(2008)
3D high-resolution acoustic imaging of the sub-seabed.
Applied Acoustics, 69 (3), .
(doi:10.1016/j.apacoust.2006.08.010).
Abstract
Chirp sub-bottom profilers are marine acoustic devices that use a known and repeatable frequency-modulated source signature to produce vertical seismic reflection cross-sections of the sub-seabed. Here a 3D Chirp system is described that operates in the frequency range of 1.5–13 kHz, to produce a three-dimensional image of the sub-seabed, with typical penetration of 10–30 m and decimetric horizontal and vertical resolution. The system design incorporates a rigid frame that contains the Chirp source array together with 60 receiver elements, with positioning provided by an integrated real-time-kinematic (RTK) global positioning system (GPS). The system can be surface towed from a small survey vessel and can be applied to targets of marine geological, engineering, archaeological and defence interest. Data acquisition and processing are described for a case study which images a buried engineering structure in the Port of Southampton.
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Published date: March 2008
Additional Information:
Also published in Applied Acoustics 69(5) as
a result of publisher's error
Keywords:
chirp, 3D chirp, 3D seismics, high-resolution seismics
Identifiers
Local EPrints ID: 51028
URI: http://eprints.soton.ac.uk/id/eprint/51028
ISSN: 0003-682X
PURE UUID: 9e1d415e-d5f8-4a2f-a4e1-4d9eeb3b2095
Catalogue record
Date deposited: 01 May 2008
Last modified: 11 Jul 2024 01:34
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Contributors
Author:
Martin Gutowski
Author:
Jonathan M. Bull
Author:
Justin K. Dix
Author:
Timothy J. Henstock
Author:
Peter Hogarth
Author:
Tom Hillier
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