Preprints
https://doi.org/10.5194/gmd-2020-446
https://doi.org/10.5194/gmd-2020-446

Submitted as: model description paper 11 Feb 2021

Submitted as: model description paper | 11 Feb 2021

Review status: this preprint is currently under review for the journal GMD.

The EC-Earth3 Earth System Model for the Climate Model Intercomparison Project 6

Ralf Döscher1, Mario Acosta2, Andrea Alessandri3, Peter Anthoni4, Almut Arneth4, Thomas Arsouze2, Tommi Bergmann5, Raffaele Bernadello2, Souhail Bousetta6, Louis-Philippe Caron2, Glenn Carver6, Miguel Castrillo2, Franco Catalano7, Ivana Cvijanovic2, Paolo Davini8, Evelien Dekker1, Francisco J. Doblas-Reyes2, David Docquier1, Pablo Echevarria2, Uwe Fladrich1, Ramon Fuentes-Franco1, Matthias Gröger1, Jost v. Hardenberg9,8, Jenny Hieronymus1, M. Pasha Karami1, Jukka-Pekka Keskinen10, Torben Koenigk1, Risto Makkonen11, Francois Massonnet12, Martin Ménégoz13, Paul A. Miller14, Eduardo Moreno-Chamarro2, Lars Nieradzik14, Twan van Noije5, Paul Nolan15, Declan O’Donnell11, Pirrka Ollinaho11, Gijs van den Oord5, Pablo Ortega2, Oriol Tintó Prims2, Arthur Ramos2, Thomas Reerink5, Clement Rousset16, Yohan Ruprich-Robert2, Philippe Le Sager5, Torben Schmith16, Roland Schrödner14, Federico Serva17, Valentina Sicardi2, Marianne Sloth Madsen18, Benjamin Smith14, Tian Tian18, Etienne Tourigny2, Petteri Uotila10, Martin Vancoppenolle19, Shiyu Wang1, David Wårlind14, Ulrika Willén1, Klaus Wyser1, Shuting Yang18, Xavier Yepes-Arbós2, and Qiong Zhang20 Ralf Döscher et al.
  • 1Swedish Meteorological and Hydrological Institute SMHI, Norrköping, 60176, Sweden
  • 2Barcelona Supercomputing Center, Barcelona, 08034, Spain
  • 3Institute of Atmospheric Sciences and Climate, Consiglio Nazionale delle Ricerche, ISAC-CNR, 40129, Bologna, Italy
  • 4Karlsruhe Institute of Technology KIT, Garmisch-Partenkirchen, 82467, Germany
  • 5Royal Netherlands Meteorological Institute KNMI, De Bilt, 3731, The Netherlands
  • 6European Centre for Medium Range Weather Forecast ECMWF, Reading, RG2-9AX, United Kingdom
  • 7Italian National Agency for New Technologies, Energy and Sustainable Economic Development ENEA, Roma, 00196, Italy
  • 8Institute of Atmospheric Sciences and Climate, Consiglio Nazionale delle Ricerche, ISAC-CNR, 10133, Torino, Italy
  • 9Politecnico di Torino, 10129 Torino, Italy
  • 10University of Helsinki, Helsinki, 00014, Finland
  • 11Finnish Meteorological Institute, FMI, Helsinki, 00560, Finland
  • 12Université Catholique de Louvain UCLouvain, Ottignies-Louvain-la-Neuve, 1348, Belgium
  • 13IGE, University of Grenoble, Grenoble, 38400, France
  • 14Lund University, Lund, 22100, Sweden
  • 15Irish Centre for High End Computing, ICHECK, Ireland
  • 16UPMC University Pierre and Marie Curie UPMC, Paris, 75005, France
  • 17Istituto di Scienze Marine CNR-ISMAR, Venezia, 30122, Italy
  • 18Danish Meteorological Institute, Copenhagen, 2100, Denmark
  • 19Institut Pierre Simon Laplace IPSL, Paris, 75005, France
  • 20Stockholm University, Stockholm, 106 91, Sweden

Abstract. The Earth System Model EC-Earth3 for contributions to CMIP6 is documented here, with its flexible coupling framework, major model configurations, a methodology for ensuring the simulations are comparable across different HPC systems, and with the physical performance of base configurations over the historical period. The variety of possible configurations and sub-models reflects the broad interests in the EC-Earth community. EC-Earth3 key performance metrics demonstrate physical behaviour and biases well within the frame known from recent CMIP models. With improved physical and dynamic features, new ESM components, community tools, and largely improved physical performance compared to the CMIP5 version, EC-Earth3 represents a clear step forward for the only European community ESM. We demonstrate here that EC-Earth3 is suited for a range of tasks in CMIP6 and beyond.

Ralf Döscher et al.

Status: final response (author comments only)

Comment types: AC – author | RC – referee | CC – community | EC – editor | CEC – chief editor | : Report abuse
  • CC1: 'Comment on gmd-2020-446', Malcolm J. Roberts, 15 Mar 2021
  • RC1: 'Comment on gmd-2020-446', Neil Swart, 19 Mar 2021
  • EC1: 'Comment on gmd-2020-446', Fiona O'Connor, 20 Apr 2021
  • RC2: 'Comment on gmd-2020-446', Fiona O'Connor, 20 Apr 2021

Ralf Döscher et al.

Ralf Döscher et al.

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Short summary
The Earth System Model EC-Earth3 is documented here. Key performance metrics show physical behaviour and biases well within the frame known from recent models. With improved physical and dynamic features, new ESM components, community tools, and largely improved physical performance compared to the CMIP5 version, EC-Earth3 represents a clear step forward for the only European community ESM. We demonstrate here that EC-Earth3 is suited for a range of tasks in CMIP6 and beyond.