2DH-quantification of surf zone bathymetry from video

Stefan Aarninkhof*, Kathelijne Wijnberg, Dano Roelvink, Ad Reniers

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contributionAcademicpeer-review

4 Citations (Scopus)
3 Downloads (Pure)

Abstract

Information on the actual state of the nearshore zone - in terms of topographic variability, surface waves, and circulation patterns - is crucial in many naval and civilian applications. Spatial scales of interest generally span distances on the order of hundreds of meters to a few kilometers. Obtaining this information form in situ measurements or model predictions alone is not feasible. This paper presents results of the first efforts in assimilating high-resolution video observations of the surf zone with a 2DH morphological model to map 3D bathymetry in the surf zone. Two pilot applications demonstrate the model's potential, returning a realistic rip channelled beach topography at Monterey (CA, USA) and preserving the characteristic bar-trough configuration at Egmond (NL) throughout the entire 9 month simulation period. Being fully embedded in the Delft3D modelling system, the assimilation model can be combined with any regular hydrodynamic or morphological model run. This sophisticated use of high-resolution video observations in combination with a 2DH morphological model opens the door towards the nowcasting of nearshore bathymetric evolution. Copyright ASCE 2006.

Original languageEnglish
Title of host publicationCoastal Dynamics 2005 - Proceedings of the Fifth Coastal Dynamics International Conference
DOIs
Publication statusPublished - 2006
Event5th International Conference on Coastal Dynamics 2005 - Barcelona, Spain
Duration: 4 Apr 20058 Apr 2005
Conference number: 5

Conference

Conference5th International Conference on Coastal Dynamics 2005
CountrySpain
CityBarcelona
Period4/04/058/04/05

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