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Journal Articles Journal of Geophysical Research: Atmospheres Year : 2021

Evaluation of the Large EURO-CORDEX Regional Climate Model Ensemble

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Fredrik Boberg
  • Function : Author
Erasmo Buonomo
  • Function : Author
Katharina Bülow
  • Function : Author
Erika Coppola
  • Function : Author
Lola Corre
  • Function : Author
Erik van Meijgaard
  • Function : Author
Rita Nogherotto
  • Function : Author
Marit Sandstad
  • Function : Author
Clemens Schwingshackl
  • Function : Author
Emma Aalbers
  • Function : Author
Ole B. Christensen
  • Function : Author
James M. Ciarlo
  • Function : Author
Marie-Estelle Demory
  • Function : Author
Filippo Giorgi
  • Function : Author
Daniela Jacob
  • Function : Author
Richard G. Jones
  • Function : Author
Klaus Keuler
  • Function : Author
Erik Kjellström
  • Function : Author
Geert Lenderink
  • Function : Author
Grigory Nikulin
  • Function : Author
Jana Sillmann
  • Function : Author
Cosimo Solidoro
  • Function : Author
Silje Lund Sørland
  • Function : Author
Christian Steger
Claas Teichmann
  • Function : Author
Kirsten Warrach-Sagi
  • Function : Author
Volker Wulfmeyer

Abstract

The use of regional climate model (RCM)-based projections for providing regional climate information in a research and climate service contexts is currently expanding very fast. This has been possible thanks to a considerable effort in developing comprehensive ensembles of RCM projections, especially for Europe, in the EURO-CORDEX community (Jacob et al., 2014, 2020). As of end of 2019, EURO-CORDEX has developed a set of 55 historical and scenario projections (RCP8.5) using 8 driving global climate models (GCMs) and 11 RCMs. This article presents the ensemble including its design. We target the analysis to better characterize the quality of the RCMs by providing an evaluation of these RCM simulations over a number of classical climate variables and extreme and impact-oriented indices for the period 1981-2010. For the main variables, the model simulations generally agree with observations and reanalyses. However, several systematic biases are found as well, with shared responsibilities among RCMs and GCMs: Simulations are overall too cold, too wet, and too windy compared to available observations or reanalyses. Some simulations show strong systematic biases on temperature, others on precipitation or dynamical variables, but none of the models/simulations can be defined as the best or the worst on all criteria. The article aims at supporting a proper use of these simulations within a climate services context.
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Dates and versions

insu-03660154 , version 1 (05-05-2022)

Licence

Attribution - CC BY 4.0

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Robert Vautard, Nikolay Kadygrov, Carley Iles, Fredrik Boberg, Erasmo Buonomo, et al.. Evaluation of the Large EURO-CORDEX Regional Climate Model Ensemble. Journal of Geophysical Research: Atmospheres, 2021, 126, ⟨10.1029/2019JD032344⟩. ⟨insu-03660154⟩
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