| Registro completo |
| Provedor de dados: |
ArchiMer
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| País: |
France
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| Título: |
Large-scale flows under location uncertainty: a consistent stochastic framework
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| Autores: |
Chapron, Bertrand
Derian, P.
Memin, E.
Resseguier, Valentin
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| Data: |
2018-01
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| Ano: |
2018
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| Palavras-chave: |
Large-scale flow modelling
Stochastic parametrization
Modelling under location uncertainty
Stochastic Lorenz model
Stochastic transport
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| Resumo: |
Using a classical example, the Lorenz-63 model, an original stochastic framework is applied to represent large-scale geophysical flow dynamics. Rigorously derived from a reformulated material derivative, the proposed framework encompasses several meaningful mechanisms to model geophysical flows. The slightly compressible set-up, as treated in the Boussinesq approximation, yields a stochastic transport equation for the density and other related thermodynamical variables. Coupled to the momentum equation through a forcing term, the resulting stochastic Lorenz-63 model is derived consistently. Based on such a reformulated model, the pertinence of this large-scale stochastic approach is demonstrated over classical eddy-viscosity based large-scale representations.
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| Tipo: |
Text
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| Idioma: |
Inglês
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| Identificador: |
https://archimer.ifremer.fr/doc/00429/54081/56227.pdf
DOI:10.1002/qj.3198
https://archimer.ifremer.fr/doc/00429/54081/
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| Editor: |
Wiley
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| Formato: |
application/pdf
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| Fonte: |
Quarterly Journal Of The Royal Meteorological Society (0035-9009) (Wiley), 2018-01 , Vol. 144 , N. 710 , P. 251-260
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| Direitos: |
2017 Royal Meteorological Society
info:eu-repo/semantics/openAccess
restricted use
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