Journal article
Resolving and parameterising the ocean mesoscale in earth system models
- Abstract:
- Purpose of ReviewAssessment of the impact of ocean resolution in Earth System models on the mean state, variability, andfuture projections and discussion of prospects for improved parameterisations to represent the ocean mesoscale.Recent FindingsThe majority of centres participating in CMIP6 employ ocean components with resolutions of about 1 degree intheir full Earth System models (eddy-parameterising models). In contrast, there are also models submitted to CMIP6 (both DECKand HighResMIP) that employ ocean components of approximately 1/4 degree and 1/10 degree (eddy-present and eddy-richmodels). Evidence to date suggests that whether the ocean mesoscale is explicitly represented or parameterised affects not onlythe mean state of the ocean but also the climate variability and the future climate response, particularly in terms of the Atlanticmeridional overturning circulation (AMOC) and the Southern Ocean. Recent developments in scale-aware parameterisations ofthe mesoscale are being developed and will be included in future Earth System models.SummaryAlthough the choice of ocean resolution in Earth System models will always be limited by computational consider-ations, for the foreseeable future, this choice is likely to affect projections of climate variability and change as well as otheraspects of the Earth System. Future Earth System models will be able to choose increased ocean resolution and/or improvedparameterisation of processes to capture physical processes with greater fidelity.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, 877.7KB, Terms of use)
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- Publisher copy:
- 10.1007/s40641-020-00164-w
Authors
- Publisher:
- Springer Nature
- Journal:
- Current Climate Change Reports More from this journal
- Volume:
- 6
- Pages:
- 137-152
- Publication date:
- 2020-10-07
- Acceptance date:
- 2020-09-11
- DOI:
- EISSN:
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2198-6061
- Language:
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English
- Keywords:
- Pubs id:
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1131703
- Local pid:
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pubs:1131703
- Deposit date:
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2020-09-15
Terms of use
- Copyright holder:
- Hewitt et al.
- Copyright date:
- 2020
- Rights statement:
- © The Author(s) 2020. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adap-tation, distribution and reproduction in any medium or format, as long asyou give appropriate credit to the original author(s) and the source, pro-vide a link to the Creative Commons licence, and indicate if changes weremade. The images or other third party material in this article are includedin the article's Creative Commons licence, unless indicated otherwise in acredit line to the material. If material is not included in the article'sCreative Commons licence and your intended use is not permitted bystatutory regulation or exceeds the permitted use, you will need to obtainpermission directly from the copyright holder. To view a copy of thislicence, visithttp://creativecommons.org/licenses/by/4.0/.
- Licence:
- CC Attribution (CC BY)
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