Grain size dependency in the occurrence of sand waves

Henriëtte van der Veen, Suzanne J.M.H. Hulscher, Michiel Knaapen

Research output: Contribution to journalArticleAcademicpeer-review

33 Citations (Scopus)

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.
Original languageEnglish
Article numberdoi:10.1007/s10236-005-0049-7
Pages (from-to)228-234
JournalOcean dynamics
Volume56
Issue number2006
DOIs
Publication statusPublished - 2006

Keywords

  • GIS
  • Grain size
  • IR-53832
  • North Sea
  • METIS-227109
  • Sand waves

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