Modeling bio-geomorphological influences for offshore sandwaves

Bastiaan Wijnand Borsje, Mindert de Vries, T.J. Bouma, G. Besio, Suzanne J.M.H. Hulscher, P.M.J. Herman

Research output: Contribution to journalArticleAcademic

27 Citations (Scopus)

Abstract

The coastal environment shows a wide range of bed patterns, for which sandwaves and sandbanks are among the most common. Less known in this context is the high benthic diversity in the coastal environment, which gives rise to the question to what extend the benthos interacts with the shape of the seabed. This paper reviews field and flume experiments on bio-geomorphological influences between benthos and sediment and tests the hypothesis that both the occurrence and the dimensions of sandwaves are dependent on the benthic diversity in the North Sea. Mathematical inclusions to account for biological activity in idealized models reveal that biota is able to influence the wavelength of sandwaves significantly, compared to the default case. More importantly, the models indicate that biota is able to induce bed patterns under conditions when the physical parameters suggest a stable flat bed and vice versa. Present model explorations indicate that future research should focus on the parameterization of subtidal biological activity on sediment dynamics and thereby on seabed patterns. Such knowledge will enable process-based modeling of the spatial and temporal variation in biological activity on seabed morphodynamics and validate the proposed modeling approach with field measurements.
Original languageEnglish
Pages (from-to)1289-1301
JournalContinental shelf research
Volume29
Issue number9
DOIs
Publication statusPublished - 2009

Fingerprint

benthos
coastal zone
biota
bioactive properties
sandbank
modeling
flume experiment
benthic organisms
morphodynamics
sediment
parameterization
temporal variation
spatial variation
sediments
wavelength
organisms
wavelengths
biological activity
testing
parameter

Keywords

  • Sand waves
  • North Sea
  • Stability analysis
  • IR-80082
  • Biogeomorphology
  • Morphological/morphodynamic modeling
  • Benthos

Cite this

Borsje, Bastiaan Wijnand ; de Vries, Mindert ; Bouma, T.J. ; Besio, G. ; Hulscher, Suzanne J.M.H. ; Herman, P.M.J. / Modeling bio-geomorphological influences for offshore sandwaves. In: Continental shelf research. 2009 ; Vol. 29, No. 9. pp. 1289-1301.
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abstract = "The coastal environment shows a wide range of bed patterns, for which sandwaves and sandbanks are among the most common. Less known in this context is the high benthic diversity in the coastal environment, which gives rise to the question to what extend the benthos interacts with the shape of the seabed. This paper reviews field and flume experiments on bio-geomorphological influences between benthos and sediment and tests the hypothesis that both the occurrence and the dimensions of sandwaves are dependent on the benthic diversity in the North Sea. Mathematical inclusions to account for biological activity in idealized models reveal that biota is able to influence the wavelength of sandwaves significantly, compared to the default case. More importantly, the models indicate that biota is able to induce bed patterns under conditions when the physical parameters suggest a stable flat bed and vice versa. Present model explorations indicate that future research should focus on the parameterization of subtidal biological activity on sediment dynamics and thereby on seabed patterns. Such knowledge will enable process-based modeling of the spatial and temporal variation in biological activity on seabed morphodynamics and validate the proposed modeling approach with field measurements.",
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Modeling bio-geomorphological influences for offshore sandwaves. / Borsje, Bastiaan Wijnand; de Vries, Mindert; Bouma, T.J.; Besio, G.; Hulscher, Suzanne J.M.H.; Herman, P.M.J.

In: Continental shelf research, Vol. 29, No. 9, 2009, p. 1289-1301.

Research output: Contribution to journalArticleAcademic

TY - JOUR

T1 - Modeling bio-geomorphological influences for offshore sandwaves

AU - Borsje, Bastiaan Wijnand

AU - de Vries, Mindert

AU - Bouma, T.J.

AU - Besio, G.

AU - Hulscher, Suzanne J.M.H.

AU - Herman, P.M.J.

PY - 2009

Y1 - 2009

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AB - The coastal environment shows a wide range of bed patterns, for which sandwaves and sandbanks are among the most common. Less known in this context is the high benthic diversity in the coastal environment, which gives rise to the question to what extend the benthos interacts with the shape of the seabed. This paper reviews field and flume experiments on bio-geomorphological influences between benthos and sediment and tests the hypothesis that both the occurrence and the dimensions of sandwaves are dependent on the benthic diversity in the North Sea. Mathematical inclusions to account for biological activity in idealized models reveal that biota is able to influence the wavelength of sandwaves significantly, compared to the default case. More importantly, the models indicate that biota is able to induce bed patterns under conditions when the physical parameters suggest a stable flat bed and vice versa. Present model explorations indicate that future research should focus on the parameterization of subtidal biological activity on sediment dynamics and thereby on seabed patterns. Such knowledge will enable process-based modeling of the spatial and temporal variation in biological activity on seabed morphodynamics and validate the proposed modeling approach with field measurements.

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KW - North Sea

KW - Stability analysis

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KW - Biogeomorphology

KW - Morphological/morphodynamic modeling

KW - Benthos

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