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Titel |
NEMO on the shelf: assessment of the Iberia-Biscay-Ireland configuration |
VerfasserIn |
C. Maraldi, J. Chanut, B. Levier, N. Ayoub, P. Mey, G. Reffray, F. Lyard, S. Cailleau, M. Drévillon, E. A. Fanjul, M. G. Sotillo, P. Marsaleix, Mercator Research and Development Team |
Medientyp |
Artikel
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Sprache |
Englisch
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ISSN |
1812-0784
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Digitales Dokument |
URL |
Erschienen |
In: Ocean Science ; 9, no. 4 ; Nr. 9, no. 4 (2013-08-26), S.745-771 |
Datensatznummer |
250085215
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Publikation (Nr.) |
copernicus.org/os-9-745-2013.pdf |
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Zusammenfassung |
This work describes the design and validation of a high-resolution
(1/36°) ocean forecasting model over the "Iberian–Biscay–Irish"
(IBI) area. The system has been set-up using the NEMO model (Nucleus for
European Modelling of the Ocean). New developments have been incorporated in
NEMO to make it suitable to open- as well as coastal-ocean modelling. In
this paper, we pursue three main objectives: (1) to give an overview of the
model configuration used for the simulations; (2) to give a broad-brush account
of one particular aspect of this work, namely consistency verification; this
type of validation is conducted upstream of the implementation of the system
before it is used for production and routinely validated; it is meant to
guide model development in identifying gross deficiencies in the modelling
of several key physical processes; and (3) to show that such a regional modelling
system has potential as a complement to patchy observations (an integrated
approach) to give information on non-observed physical quantities and to
provide links between observations by identifying broader-scale patterns and
processes. We concentrate on the year 2008. We first provide domain-wide
consistency verification results in terms of barotropic tides, transports,
sea surface temperature and stratification. We then focus on two dynamical
subregions: the Celtic shelves and the Bay of Biscay slope and deep
regions. The model–data consistency is checked for variables and processes
such as tidal currents, tidal fronts, internal tides and residual elevation. We
also examine the representation in the model of a seasonal pattern of the
Bay of Biscay circulation: the warm extension of the Iberian Poleward
Current along the northern Spanish coast (Navidad event) in the winter of
2007–2008. |
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