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Parameterizing unresolved obstacles with source terms in wave modeling: A real-world application
- Publication Year :
- 2018
-
Abstract
- Parameterizing the dissipative effects of small, unresolved coastal features, is fundamental to improve the skills of wave models. The established technique to deal with this problem consists in reducing the amount of energy advected within the propagation scheme, and is currently available only for regular grids. To find a more general approach, Mentaschi et al., 2015b formulated a technique based on source terms, and validated it on synthetic case studies. This technique separates the parameterization of the unresolved features from the energy advection, and can therefore be applied to any numerical scheme and to any type of mesh. Here we developed an open-source library for the estimation of the transparency coefficients needed by this approach, from bathymetric data and for any type of mesh. The spectral wave model WAVEWATCH III was used to show that in a real-world domain, such as the Caribbean Sea, the proposed approach has skills comparable and sometimes better than the established propagation-based technique.
- Subjects :
- Atmospheric Science
010504 meteorology & atmospheric sciences
010505 oceanography
Computer science
Advection
Transparency (human–computer interaction)
Type (model theory)
Geotechnical Engineering and Engineering Geology
Oceanography
01 natural sciences
Domain (software engineering)
Wave model
Source term
Wave modeling
Unresolved obstacle
Wavewatch
Computer Science (miscellaneous)
Dissipative system
Bathymetry
Subscale modelling
UOST
Algorithm
Energy (signal processing)
0105 earth and related environmental sciences
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....c8cafb7de665c0aa961553880755a9f6