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 language | English |
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Title of host publication | Coastal Dynamics 2005 |
Subtitle of host publication | Proceedings of the Fifth International Coastal Dynamics Conference, held in Barcelona, Spain, April 4-8, 2005 |
Editors | Agustin Sanchez-Arcilla |
Place of Publication | Reston, VA |
Publisher | American Society of Civil Engineers |
Number of pages | 14 |
ISBN (Print) | 9780784408551 |
DOIs | |
Publication status | Published - 2006 |
Event | 5th International Conference on Coastal Dynamics 2005 - Barcelona, Spain Duration: 4 Apr 2005 → 8 Apr 2005 Conference number: 5 |
Conference
Conference | 5th International Conference on Coastal Dynamics 2005 |
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Country/Territory | Spain |
City | Barcelona |
Period | 4/04/05 → 8/04/05 |