Work

SnapWave: fast, implicit wave transformation from offshore to nearshore

Year: 2025

Type: article

Abstract: . This paper presents an efficient, implicit, unstructured-grid wave propagation model, SnapWave (Dano Roelvink, Ormondt, Reyns, & Lugt, 2025), which provides a simple and fast way to predict nearshore wave conditions at specified locations, for coastline models such as ShorelineS, or wave fields and their forcing of flows, to be used in other models, such as Delft3D-FM, XBeach or SFINCS. We describe the numerical method and verify the correct implementation by comparing against analytical solutions for schematized cases. We then test the model application in four different coastal settings by propagating time series of ERA5 hourly wave conditions to observation points nearshore and through the surf zone. We conclude that the model is robust, easy to set up and fast, and can be applied on open coasts worldwide.

Source: Geoscientific model development

DOI: 10.5194/gmd-18-9469-2025

Authors: Dano Roelvink, Maarten van Ormondt, Johan Reyns, Marlies van der Lugt

Institutions: IHE Delft Institute for Water Education, Deltares, Delft University of Technology

Language: English

Topic: Coastal and Marine Dynamics

Subfield: Earth-Surface Processes

Field: Earth and Planetary Sciences

Domain: Physical Sciences

SDG: Life below water

Open Access status: gold

Estimated APC paid: $1,725