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| Titel |
The Met Office Global Coupled model 2.0 (GC2) configuration |
| VerfasserIn |
K. D. Williams, C. M. Harris, A. Bodas-Salcedo, J. Camp, R. E. Comer, D. Copsey, D. Fereday, T. Graham, R. Hill, T. Hinton, P. Hyder, S. Ineson, G. Masato, S. F. Milton, M. J. Roberts, D. P. Rowell, C. Sanchez, A. Shelly, B. Sinha, D. N. Walters, A. West, T. Woollings, P. K. Xavier |
| 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 ; 8, no. 5 ; Nr. 8, no. 5 (2015-05-21), S.1509-1524 |
| Datensatznummer |
250116347
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| Publikation (Nr.) |
 copernicus.org/gmd-8-1509-2015.pdf |
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| Zusammenfassung |
The latest coupled configuration of the Met Office Unified Model
(Global Coupled configuration 2, GC2) is presented. This paper
documents the model components which make up the configuration
(although the scientific description of these components is detailed
elsewhere) and provides a description of the coupling between the
components. The performance of GC2 in terms of its systematic errors
is assessed using a variety of diagnostic techniques. The
configuration is intended to be used by the Met Office and
collaborating institutes across a range of timescales, with the
seasonal forecast system (GloSea5) and climate projection system
(HadGEM) being the initial users. In this paper GC2 is compared
against the model currently used operationally in those two systems.
Overall GC2 is shown to be an improvement on the configurations used
currently, particularly in terms of modes of variability
(e.g. mid-latitude and tropical cyclone intensities, the
Madden–Julian Oscillation and El Niño Southern
Oscillation). A number of outstanding errors are identified with the
most significant being a considerable warm bias over the Southern
Ocean and a dry precipitation bias in the Indian and West African
summer monsoons. Research to address these is ongoing. |
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