| | |
| | |
Stat |
Members: 3667 Articles: 2'599'751 Articles rated: 2609
08 February 2025 |
|
| | | |
|
Article overview
| |
|
Stochastic parameterization of subgrid-scale processes in coupled ocean-atmosphere systems: Benefits and limitations of response theory | Jonathan Demaeyer
; Stéphane Vannitsem
; | Date: |
2 May 2016 | Abstract: | A stochastic subgrid-scale parameterization based on the Ruelle’s response
theory and proposed in Wouters and Lucarini (2012) is tested in the context of
a low-order coupled ocean-atmosphere model for which a part of the atmospheric
modes are considered as unresolved. A natural separation of the phase-space
into an invariant set and its complement allows for an analytical derivation of
the different terms involved in the parameterization, namely the average, the
fluctuation and the long memory terms. In this case, the fluctuation term is an
additive stochastic noise. Its application to the low-order system reveals that
a considerable correction of the low-frequency variability along the invariant
subset can be obtained, provided that the coupling is sufficiently weak. This
new approach of scale separation opens new avenues of subgrid-scale
parameterizations in multiscale systems used for climate forecasts. | Source: | arXiv, 1605.0461 | Services: | Forum | Review | PDF | Favorites |
|
|
No review found.
Did you like this article?
Note: answers to reviews or questions about the article must be posted in the forum section.
Authors are not allowed to review their own article. They can use the forum section.
|
| |
|
|
|