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Morphodynamic models used to study the impact of offshore aggregate extraction: a review
Idier, D.; Hommes, S.; Brière, C.; Roos, P.C.; Walstra, D.J.R.; Knaapen, M.A.F.; Hulscher, S.J.M.H. (2010). Morphodynamic models used to study the impact of offshore aggregate extraction: a review. J. Coast. Res. SI 51: 39-52
In: Journal of Coastal Research. Coastal Education and Research Foundation: Fort Lauderdale. ISSN 0749-0208, more

Available in Authors 
Document type: Review

Keyword
    Marine
Author keywords
    aggregate extraction; impact; morphodynamics; modelling; sandbanks; coastal state indicator

Authors  Top 
  • Idier, D.
  • Hommes, S.
  • Brière, C.
  • Roos, P.C.
  • Walstra, D.J.R.
  • Knaapen, M.A.F., more
  • Hulscher, S.J.M.H., more

Abstract
    This review highlights three morphodynamics modelling approaches, used for offshore marine aggregate extraction impact assessment. These approaches are based upon examples of (1) full process-based models; (2) idealised processbased models; and (3) conceptual models. Illustrated also is the way in which these models, applied for extractions on flat bed or sandbanks, can complement each other, towards the estimation of Coastal State Indicators (CSIs). This review leads to the conclusion that, for an optimal environment assessment, there are two main approaches: (1) either combine and couple the models, in order to simulate the full morphodynamics of the system over a long time-scale, taking into account also short-term events, or (2) use a set of existing models, knowing precisely their applicability to the CSI’s and the reliability of their predictions, rather than using only the best model, available presently.

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