Cristin-resultat-ID: 1914954
Sist endret: 16. desember 2021, 19:36
NVI-rapporteringsår: 2021
Resultat
Vitenskapelig artikkel
2021

Coastal ocean forecasting on the GPU using a two-dimensional finite-volume scheme

Bidragsytere:
  • André R. Brodtkorb og
  • HÅvard Heitlo Holm

Tidsskrift

Tellus. Series A, Dynamic meteorology and oceanography
ISSN 0280-6495
e-ISSN 1600-0870
NVI-nivå 1

Om resultatet

Vitenskapelig artikkel
Publiseringsår: 2021
Volum: 73
Hefte: 1
Sider: 1 - 23
Artikkelnummer: 1876341
Open Access

Importkilder

Scopus-ID: 2-s2.0-85105943734

Beskrivelse Beskrivelse

Tittel

Coastal ocean forecasting on the GPU using a two-dimensional finite-volume scheme

Sammendrag

In this work, we take a modern high-resolution finite-volume scheme for solving the rotational shallow-water equations and extend it with features required to run real-world ocean simulations. Our contributions include a spatially varying north vector and Coriolis term required for large scale domains, moving wet-dry fronts, a static land mask, bottom shear stress, wind forcing, boundary conditions for nesting in a global model, and an efficient model reformulation that makes it well-suited for massively parallel implementations. Our model order is verified using a grid convergence test, and we show numerical experiments using three different sections along the coast of Norway based on data originating from operational forecasts run at the Norwegian Meteorological Institute. Our simulation framework shows perfect weak scaling on a modern P100 GPU, and is capable of providing tidal wave forecasts that are very close to the operational model at a fraction of the cost. All source code and data used in this work are publicly available under open licenses.

Bidragsytere

Andre Brodtkorb

Bidragsyterens navn vises på dette resultatet som André R. Brodtkorb
  • Tilknyttet:
    Forfatter
    ved Institutt for informasjonsteknologi ved OsloMet - storbyuniversitetet

Håvard Heitlo Holm

Bidragsyterens navn vises på dette resultatet som HÅvard Heitlo Holm
  • Tilknyttet:
    Forfatter
    ved Mathematics and Cybernetics ved SINTEF AS
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