Stochastic parametrization of subgrid‐scale processes in coupled ocean–atmosphere systems: benefits and limitations of response theory

  title={Stochastic parametrization of subgrid‐scale processes in coupled ocean–atmosphere systems: benefits and limitations of response theory},
  author={Jonathan Demaeyer and St{\'e}phane Vannitsem},
  journal={Quarterly Journal of the Royal Meteorological Society},
  • J. DemaeyerS. Vannitsem
  • Published 2 May 2016
  • Environmental Science
  • Quarterly Journal of the Royal Meteorological Society
A stochastic subgrid‐scale parametrization based on the Ruelle's response theory and proposed by Wouters and Lucarini is tested in the context of a low‐order coupled ocean–atmosphere model for which a part of the atmospheric modes is considered as unresolved. A natural separation of phase‐space into an invariant set and its complement allows for an analytical derivation of the different terms involved in the parametrization, namely the average, fluctuation and long memory terms. In this case… 

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