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Título: | MVL spatiotemporal analysis for model intercomparison in EPS: application to the DEMETER multi-model ensemble |
Autor: | Fernández, J.; Primo, C.; Cofiño, Antonio S. CSIC ORCID; Gutiérrez, José M. CSIC ORCID ; Rodríguez, Miguel A. CSIC ORCID | Palabras clave: | Error growth Model intercomparison MVL diagram Spatiotemporal dynamics Ensemble prediction systems |
Fecha de publicación: | 2009 | Editor: | Springer Nature | Citación: | Climate Dynamics 33(2-3): 233-243 (2009) | Resumen: | In a recent paper, Gutiérrez et al. (Nonlinear Process Geophys 15(1):109-114, 2008) introduced a new characterization of spatiotemporal error growth - the so called mean - variance logarithmic (MVL) diagram - and applied it to study ensemble prediction systems (EPS); in particular, they analyzed single-model ensembles obtained by perturbing the initial conditions. In the present work, the MVL diagram is applied to multi-model ensembles analyzing also the effect of model formulation differences. To this aim, the MVL diagram is systematically applied to the multi-model ensemble produced in the EU-funded DEMETER project. It is shown that the shared building blocks (atmospheric and ocean components) impose similar dynamics among different models and, thus, contribute to poorly sampling the model formulation uncertainty. This dynamical similarity should be taken into account, at least as a pre-screening process, before applying any objective weighting method. © Springer-Verlag 2008. | URI: | http://hdl.handle.net/10261/94071 | DOI: | 10.1007/s00382-008-0456-9 | Identificadores: | doi: 10.1007/s00382-008-0456-9 issn: 0930-7575 e-issn: 1432-0894 |
Aparece en las colecciones: | (IFCA) Artículos |
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