Swash hydrodynamic modelling using a tri-dimensional model: CROCO

Abstract

Abstract:The swash zone is one the most dynamic regions in the nearshore. During storms the beach response (erosion and recovery) is strongly controlled by the swash zone and for this reason it is crucial to acquire field data to and develop new modelling solutions to improve the forecast of the processes in this zone. New remote sensing techniques, such as 2D Lidar, that can measure swash hydro-and morphodynamics provide extremely valuable observations to develop and validate numerical models. In the present work a novel dataset of swash hydrodynamic observations (performed by a 2D Lidar) are used to test the performance of a new non-hydrostatic tri-dimensional numerical model (CROCO) to predict wave transformation and swash motions on a sandy beach with a low tide terrace (Nha Trang, Vietnam). An high resolution grid was setup, covering the entire swash zone and the inner surf zone, and 2 types of simulations were performed with energetic waves and mild wave conditions. Comparisons between CROCO and 2D Lidar indicate that despite some differences between individual waves characteristics (length of swash excursions and durations) in the overall the model show skills to predict extreme runup statistics (e.g., R2% or R10%) with very high level of accuracy, particularly during mild energetic wave conditions.

Simulated circulation and particle trajectory analysis related to the oil spill event in the Karawang Coastal Waters

“…In this study, the CROCO modelling (https://www.croco-ocean.org/) was used to simulate ocean circulation at the time oil spill occurred. The CROCO model has the advantage of having flexible framework that can adapt to model elements including advection schemes, turbulence sub-models, and boundary conditions [3].…”

The ocean response to El Nino Southern Oscillation (ENSO) in the Bali Sea: a model study

“…The Coastal and Regional Ocean Community Model (CROCO) system is used in this study. This model can model coastal scales and regional scales [9]. Research on the connection between ENSO and ocean response is interesting to study.…”