| Autor: |
Lashley, Christopher, Zanuttigh, Barbara, Bricker, Jeremy, van der Meer, Jentsje, Altomare, Corrado, Suzuki, Tomohiro, Roeber, Volker, Oosterlo, Patrick |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
Environmental Modelling & Software Environmental Modelling & Software, Volume 130, August 2020, 104740 |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1016/j.envsoft.2020.104740 |
| Popis: |
To accurately predict the consequences of nearshore waves, coastal engineers often employ numerical models. A variety of these models, broadly classified as either phase-resolving or phase-averaged, exist; each with strengths and limitations owing to the physical schematization of processes within them. Models which resolve the vertical flow structure or the full wave spectrum (i.e. sea-swell (SS) and infragravity (IG) waves) are considered more accurate, but also more computationally demanding than those with approximations. Here, we assess the speed-accuracy trade-off of six well-known wave models for overtopping (q), under shallow foreshore conditions. The results demonstrate that: i) q is underestimated by an order of magnitude when IG waves are neglected; ii) using more computationally-demanding models does not guarantee more accurate results; and iii) with empirical corrections to account for IG waves, phase-averaged models like SWAN can perform on par, if not better than, phase-resolving models but with far less computational effort. |
| Databáze: |
arXiv |
| Externí odkaz: |
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