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| Titel |
GO5.0: the joint NERC–Met Office NEMO global ocean model for use in coupled and forced applications |
| VerfasserIn |
A. Megann, D. Storkey, Y. Aksenov, S. Alderson, D. Calvert, T. Graham, P. Hyder, J. Siddorn, B. Sinha |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1991-959X
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| Digitales Dokument |
URL |
| Erschienen |
In: Geoscientific Model Development ; 7, no. 3 ; Nr. 7, no. 3 (2014-06-06), S.1069-1092 |
| Datensatznummer |
250115630
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| Publikation (Nr.) |
 copernicus.org/gmd-7-1069-2014.pdf |
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| Zusammenfassung |
We describe a new Global Ocean standard configuration (GO5.0) at
eddy-permitting resolution, developed jointly between the National
Oceanography Centre and the Met Office as part of the Joint Ocean Modelling
Programme (JOMP), a working group of the UK's National Centre for Ocean
Forecasting (NCOF) and part of the Joint Weather and Climate Research
Programme (JWCRP). The configuration has been developed with the seamless
approach to modelling in mind for ocean modelling across timescales and for a
range of applications, from short-range ocean forecasting through seasonal
forecasting to climate predictions as well as research use. The configuration
has been coupled with sea ice (GSI5.0), atmosphere (GA5.0), and land-surface
(GL5.0) configurations to form a standard coupled global model (GC1). The
GO5.0 model will become the basis for the ocean model component of the
Forecasting Ocean Assimilation Model, which provides forced short-range
forecasting services. The GC1 or future releases of it will be used in
coupled short-range ocean forecasting, seasonal forecasting, decadal
prediction and for climate prediction as part of the UK Earth System Model.
A 30-year integration of GO5.0, run with CORE2 (Common Ocean-ice Reference
Experiments) surface forcing from 1976 to 2005, is described, and the
performance of the model in the final 10 years of the integration is
evaluated against observations and against a comparable integration of an
existing standard configuration, GO1. An additional set of 10-year
sensitivity studies, carried out to attribute changes in the model
performance to individual changes in the model physics, is also analysed.
GO5.0 is found to have substantially reduced subsurface drift above the depth
of the thermocline relative to GO1, and also shows a significant improvement
in the representation of the annual cycle of surface temperature and mixed
layer depth. |
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