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Bedform-velocity matrix: The estimation of bottom current velocity from bedform observations

Bedform-velocity matrix: The estimation of bottom current velocity from bedform observations
Bedform-velocity matrix: The estimation of bottom current velocity from bedform observations
A wide variety of bedforms, both depositional and erosional in origin, has been recognized on the deep seafloor and attributed to the influence of bottom currents. These range in scale from those visible in bottom photographs (centimeter to decimeter), to those recorded with seafloor bathymetric imaging (meter to kilometer). In many cases it has been possible to provide some quaication of substrate grain size and flow velocity responsible for each bedform type. We have synthesized both our own and published data in order to present a bedform-velocity matrix, which facilitates the estimation of bottom current velocity based on bedform type. Despite imperfections, we believe this to be a valuable model for assessing strength and variability of bottom currents that can have a significant influence on the siting of submarine cables, pipelines, and other seafloor installations.
0091-7613
327-330
Stow, Dorrik A.V.
888764b3-5e4d-49bf-96fd-32ba7f6f8356
Hernández-Molina, F. Javier
256ca467-a4e8-4f24-9ff1-23bd2ab8d28d
Llave, Estefania
60f6576c-627a-4ffb-a0c6-3e8752cd60d9
Sayago-Gil, Miriam
a870218f-70ca-48fe-8c96-84910a569c16
Díaz del Río, Victor
3690bd0a-54d7-4e9c-8907-544deea49c1d
Branson, Adam
ee147604-f84f-48ed-9d28-32a98a3aef43
Stow, Dorrik A.V.
888764b3-5e4d-49bf-96fd-32ba7f6f8356
Hernández-Molina, F. Javier
256ca467-a4e8-4f24-9ff1-23bd2ab8d28d
Llave, Estefania
60f6576c-627a-4ffb-a0c6-3e8752cd60d9
Sayago-Gil, Miriam
a870218f-70ca-48fe-8c96-84910a569c16
Díaz del Río, Victor
3690bd0a-54d7-4e9c-8907-544deea49c1d
Branson, Adam
ee147604-f84f-48ed-9d28-32a98a3aef43

Stow, Dorrik A.V., Hernández-Molina, F. Javier, Llave, Estefania, Sayago-Gil, Miriam, Díaz del Río, Victor and Branson, Adam (2009) Bedform-velocity matrix: The estimation of bottom current velocity from bedform observations. Geology, 37 (4), 327-330. (doi:10.1130/G25259A.1).

Record type: Article

Abstract

A wide variety of bedforms, both depositional and erosional in origin, has been recognized on the deep seafloor and attributed to the influence of bottom currents. These range in scale from those visible in bottom photographs (centimeter to decimeter), to those recorded with seafloor bathymetric imaging (meter to kilometer). In many cases it has been possible to provide some quaication of substrate grain size and flow velocity responsible for each bedform type. We have synthesized both our own and published data in order to present a bedform-velocity matrix, which facilitates the estimation of bottom current velocity based on bedform type. Despite imperfections, we believe this to be a valuable model for assessing strength and variability of bottom currents that can have a significant influence on the siting of submarine cables, pipelines, and other seafloor installations.

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Published date: April 2009

Identifiers

Local EPrints ID: 66087
URI: http://eprints.soton.ac.uk/id/eprint/66087
ISSN: 0091-7613
PURE UUID: ed6fcdc4-c565-41ae-8e3e-e1d6166047f9

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Date deposited: 27 Apr 2009
Last modified: 13 Mar 2024 18:08

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Contributors

Author: Dorrik A.V. Stow
Author: F. Javier Hernández-Molina
Author: Estefania Llave
Author: Miriam Sayago-Gil
Author: Victor Díaz del Río
Author: Adam Branson

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