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- Title
Grain size dependency in the occurrence of sand waves.
- Authors
Van der Veen, Hennie Henriët; Hulscher, Suzanne Jacqueline Marie Hélène; Knaapen, Michiel Adrianus Frederik
- 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.
- Subjects
NORTH Sea; SAND waves; SEDIMENTARY structures; OCEAN bottom; SAND
- Publication
Ocean Dynamics, 2006, Vol 56, Issue 3/4, p228
- ISSN
1616-7341
- Publication type
Article
- DOI
10.1007/s10236-005-0049-7