Infragravity wave source regions determined from ambient noise correlation
Infragravity wave source regions determined from ambient noise correlation
We use a backprojection method to determine dominant directions of ocean infragravity waves from 60–200 s period from cross correlations between 5 ocean bottom differential pressure gauges located off the coast of Sumatra. We observe infragravity waves arriving from all directions, but there is a dominant source direction that represents coherent propagation along the coast from the southeast or from the south. This study demonstrates the effectiveness of our projection technique, which may be applied to past and future seismic data to improve models of ocean infragravity wave generation and tsunami propagation.
L04604
Harmon, Nicholas
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Henstock, Timothy J.
27c450a4-3e6b-41f8-97f9-4e0e181400bb
Srokosz, Meric
1e0442ce-679f-43f2-8fe4-9a0f0174d483
Tilmann, Frederik
069b7049-5894-49e5-a2a3-bca816a3893b
Rietbrock, Andreas
9fbc63af-9a9a-4dfe-a389-83d92b5f4cc2
Barton, Penny
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24 February 2012
Harmon, Nicholas
10d11a16-b8b0-4132-9354-652e72d8e830
Henstock, Timothy J.
27c450a4-3e6b-41f8-97f9-4e0e181400bb
Srokosz, Meric
1e0442ce-679f-43f2-8fe4-9a0f0174d483
Tilmann, Frederik
069b7049-5894-49e5-a2a3-bca816a3893b
Rietbrock, Andreas
9fbc63af-9a9a-4dfe-a389-83d92b5f4cc2
Barton, Penny
f0ecd1d5-1fb2-4b65-9f70-907c9aa533eb
Harmon, Nicholas, Henstock, Timothy J., Srokosz, Meric, Tilmann, Frederik, Rietbrock, Andreas and Barton, Penny
(2012)
Infragravity wave source regions determined from ambient noise correlation.
Geophysical Research Letters, 39, .
(doi:10.1029/2011GL050414).
Abstract
We use a backprojection method to determine dominant directions of ocean infragravity waves from 60–200 s period from cross correlations between 5 ocean bottom differential pressure gauges located off the coast of Sumatra. We observe infragravity waves arriving from all directions, but there is a dominant source direction that represents coherent propagation along the coast from the southeast or from the south. This study demonstrates the effectiveness of our projection technique, which may be applied to past and future seismic data to improve models of ocean infragravity wave generation and tsunami propagation.
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Published date: 24 February 2012
Organisations:
Geology & Geophysics, Marine Physics and Ocean Climate
Identifiers
Local EPrints ID: 333190
URI: http://eprints.soton.ac.uk/id/eprint/333190
ISSN: 0094-8276
PURE UUID: 0d0060d0-6913-4a8a-b066-19cbccac096e
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Date deposited: 01 Mar 2012 15:01
Last modified: 15 Mar 2024 03:33
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Contributors
Author:
Meric Srokosz
Author:
Frederik Tilmann
Author:
Andreas Rietbrock
Author:
Penny Barton
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