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The EC-Earth3 Earth system model for the Coupled Model Intercomparison Project 6

2022; Copernicus Publications; Volume: 15; Issue: 7 Linguagem: Inglês

10.5194/gmd-15-2973-2022

1991-9603

Ralf Döscher, Mario Acosta, Andrea Alessandri, Peter Anthoni, Thomas Arsouze, Tommi Bergman, Raffaele Bernardello, Souhail Boussetta, Louis‐Philippe Caron, Glenn Carver, Miguel Castrillo, Franco Catalano, Ivana Cvijanović, Paolo Davini, Evelien Dekker, Francisco J. Doblas‐Reyes, David Docquier, Pablo Echevarría, Uwe Fladrich, Ramón Fuentes‐Franco, Matthias Gröger, Jost von Hardenberg, Jenny Hieronymus, Mehdi Pasha Karami, Jukka‐Pekka Keskinen, Torben Koenigk, Risto Makkonen, François Massonnet, Martin Ménégoz, Paul Miller, Eduardo Moreno‐Chamarro, Lars Nieradzik, Twan van Noije, P. Nolan, Declan O’Donnell, Pirkka Ollinaho, Gijs van den Oord, Pablo Ortega, Oriol Tintó Prims, Arthur Ramos, Thomas Reerink, Clément Rousset, Yohan Ruprich‐Robert, Philippe Le Sager, Torben Schmith, Roland Schrödner, Federico Serva, Valentina Sicardi, Marianne Sloth Madsen, Benjamin Smith, Tian Tian, Étienne Tourigny, Petteri Uotila, Martin Vancoppenolle, Shiyu Wang, David Wårlind, Ulrika Willén, Klaus Wyser, Shuting Yang, Xavier Yepes-Arbós, Qiong Zhang,

Scientific Research and Discoveries

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 high-performance computing (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 behavior and biases well within the frame known from recent CMIP models. With improved physical and dynamic features, new Earth system model (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.