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Common errors in the regional atmospheric circulation simulated by the CMIP multi-model ensemble
  • Swen Brands
Swen Brands
MeteoGalicia

Corresponding Author:[email protected]

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Abstract

The ability of global climate models to reproduce recurrent regional atmospheric circulation types is introduced as an overarching concept to explore potential dependencies between these models. If this approach is applied on a sufficiently large spatial domain, the similarity of the resulting error pattern can be compared from one model to another. By computing a pattern correlation matrix for a large multi-model ensemble from the Coupled Model Intercomparison Project, groups of comparatively strong correlation coefficients are obtained for those models working with similar atmospheric components. Thereby, frequent shared error patterns are found within in the ensemble, which also occur for nominally different atmospheric component models.