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Grain size dependency in the occurrence of sand waves

Grain size dependency in the occurrence of sand waves
Grain size dependency in the occurrence of sand waves
Sandy shallow seas, like the North Sea, are very dynamic. Several morphological features are present on the bed, from small ripples to sand waves and large tidal sandbanks. The larger patterns induce significant depth variations that have an impact on human activities taking place in this area. Therefore, it is important to know where these large-scale features occur, what their natural behaviour is and how they interact with human activities. Here, we extend earlier research that compares the results of an idealized model of large-scale seabed patterns with data of seabed patterns in the North Sea. The idealized model is extended with a grain size dependency. The adaptations lead to more accurate predictions of the occurrence of large-scale bed forms in the North Sea. Therefore, grain size dependency and, in particular, critical shear stress are important to explain the occurrence of sand waves and sandbanks in the North Sea.
Sand waves - North Sea - GIS - Grain size
1616-7341
228-234
van der Veen, H.H.
e5fa0fff-d3e3-49c1-abb2-6e25f96406a5
Hulscher, S.J.M.H.
607b5835-2a4a-4020-bc38-0c64a904c37d
Knaapen, M.A.F.
32abd748-aa55-4180-a3f3-d3315e122fb1
van der Veen, H.H.
e5fa0fff-d3e3-49c1-abb2-6e25f96406a5
Hulscher, S.J.M.H.
607b5835-2a4a-4020-bc38-0c64a904c37d
Knaapen, M.A.F.
32abd748-aa55-4180-a3f3-d3315e122fb1

van der Veen, H.H., Hulscher, S.J.M.H. and Knaapen, M.A.F. (2006) Grain size dependency in the occurrence of sand waves. Ocean Dynamics, 56 (3-4), 228-234. (doi:10.1007/s10236-005-0049-7).

Record type: Article

Abstract

Sandy shallow seas, like the North Sea, are very dynamic. Several morphological features are present on the bed, from small ripples to sand waves and large tidal sandbanks. The larger patterns induce significant depth variations that have an impact on human activities taking place in this area. Therefore, it is important to know where these large-scale features occur, what their natural behaviour is and how they interact with human activities. Here, we extend earlier research that compares the results of an idealized model of large-scale seabed patterns with data of seabed patterns in the North Sea. The idealized model is extended with a grain size dependency. The adaptations lead to more accurate predictions of the occurrence of large-scale bed forms in the North Sea. Therefore, grain size dependency and, in particular, critical shear stress are important to explain the occurrence of sand waves and sandbanks in the North Sea.

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More information

Submitted date: 1 March 2005
Published date: July 2006
Keywords: Sand waves - North Sea - GIS - Grain size

Identifiers

Local EPrints ID: 40589
URI: http://eprints.soton.ac.uk/id/eprint/40589
ISSN: 1616-7341
PURE UUID: 4dc5f028-3543-4e57-b784-fd05717c5a00

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Date deposited: 06 Jul 2006
Last modified: 15 Mar 2024 08:20

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Contributors

Author: H.H. van der Veen
Author: S.J.M.H. Hulscher
Author: M.A.F. Knaapen

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