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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Discussion papers
https://doi.org/10.5194/gmd-2019-226
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/gmd-2019-226
© Author(s) 2019. This work is distributed under
the Creative Commons Attribution 4.0 License.

Submitted as: methods for assessment of models 20 Sep 2019

Submitted as: methods for assessment of models | 20 Sep 2019

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This discussion paper is a preprint. It is a manuscript under review for the journal Geoscientific Model Development (GMD).

ESMValTool v2.0 – Technical overview

Mattia Righi1, Bouwe Andela2, Veronika Eyring1,3, Axel Lauer1, Valeriu Predoi4, Manuel Schlund1, Javier Vegas-Regidor5, Lisa Bock1, Björn Brötz1, Lee de Mora6, Faruk Diblen2, Laura Dreyer7, Niels Drost2, Paul Earnshaw7, Birgit Hassler1, Nikolay Koldunov8,9, Bill Little7, Saskia Loosveldt Tomas5, and Klaus Zimmermann10 Mattia Righi et al.
  • 1Deutsches Zentrum für Luft- und Raumfahrt (DLR), Institut für Physik der Atmosphäre, Oberpfaffenhofen, Germany
  • 2Netherlands eScience Center, Science Park 140, 1098 XG Amsterdam, the Netherlands
  • 3University of Bremen, Institute of Environmental Physics (IUP), Bremen, Germany
  • 4National Centre for Atmospheric Science, University of Reading, Department of Meteorology, Reading, United Kingdom
  • 5Barcelona Supercomputing Center, Barcelona, Spain
  • 6Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, Devon, United Kingdom, PL1 3DH
  • 7Met Office, FitzRoy Road, Exeter, EX1 3PB, United Kingdom
  • 8Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany
  • 9MARUM - Center for Marine Environmental Sciences, Bremen, Germany
  • 10Swedish Meteorological and Hydrological Institute (SMHI), Norrköping, Sweden

Abstract. This paper describes the second major release of the Earth System Model Evaluation Tool (ESMValTool), a community diagnostic and performance metrics tool for the evaluation of Earth System Models (ESMs) participating in the Coupled Model Intercomparison Project (CMIP). Compared to version 1.0, released in 2016, ESMValTool version 2.0 (v2.0) features a brand new design, with an improved interface and a revised preprocessor. It also features a significantly enhanced diagnostic part that is described in three companion papers. The new version of the ESMValTool has been specifically developed to target the increased data volume of CMIP Phase 6 (CMIP6) and the related challenges posed by the analysis and the evaluation of output from multiple high-resolution or complex ESMs. The new version takes advantage of state-of-the-art computational libraries and methods to deploy an efficient and user-friendly data processing. Common operations on the input data (such as regridding or computation of multi-model statistics) are centralized in a highly optimized preprocessor, which allows applying a series of preprocessing functions before diagnostics scripts are applied for in-depth scientific analysis of the model output. Performance tests conducted on a set of standard diagnostics show that the new version is faster than its predecessor by about a factor of three. The performance can be further improved, up to a factor of more than 30, when the newly-introduced task-based parallelization options are used, which enable the efficient exploitation of much larger computing infrastructures. ESMValTool v2.0 also includes a revised and simplified installation procedure, setting of user configurable options based on modern language formats, and high code quality standards following the best practices for software development.

Mattia Righi et al.
Interactive discussion
Status: open (until 20 Nov 2019)
Status: open (until 20 Nov 2019)
AC: Author comment | RC: Referee comment | SC: Short comment | EC: Editor comment
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Mattia Righi et al.
Model code and software

ESMValTool Adeniyi, Kemisola; Andela, Bouwe; Arnone, Enrico; Bellprat, Omar; Berg, Peter; Bock, Lisa; Broetz, Bjoern; Caron, Louis-Philippe; Carvalhais, Nuno; Cionni, Irene; Cortesi, Nicola; Corti, Susanna; Crezee, Bas; Davin, Edouard Leopold; Davini, Paolo; Deser, Clara; Diblen, Faruk; Docquier, David; Dreyer, Laura; Ehbrecht, Carsten; Drost, Niels; Earnshaw, Paul; Eyring, Veronika; Gier, Bettina; Gonzalez-Reviriego, Nube; Goodman, Paul; Hagemann, Stefan; von Hardenberg, Jost; Hassler, Birgit; Hunter, Alasdair; Kadow, Christopher; Kindermann, Stephan; Koirala, Sujan; Koldunov, Nikolay; Lauer, Axel; Lledó, Llorenç; Lejeune, Quentin; Lembo, Valerio; Little, Bill; Loosveldt-Tomas, Saskia; Lorenz, Ruth; Lovato, Tomas; Lucarini, Valerio; Massonnet, François; Mohr, Christian Wilhelm; Mueller, Benjamin; de Mora, Lee; Amarjiit, Pandde; Pérez-Zanón, Núria; Phillips, Adam; Predoi, Valeriu; Righi, Mattia; Russell, Joellen; Sandstad, Marit; Schlund, Manuel; Sellar, Alistair; Senftleben, Daniel; Serva, Federico; Sillmann, Jana; Stacke, Tobias; Swaminathan, Ranjini; Torralba, Verónica; Vegas-Regidor, Javier; Weigel, Katja; Zimmermann, Klaus https://doi.org/10.5281/zenodo.3401363

ESMValCore Andela, Bouwe; Bock, Lisa; Broetz, Bjoern; Diblen, Faruk; Dreyer, Laura; Drost, Niels; Earnshaw, Paul; Eyring, Veronika; Hassler, Birgit; Koldunov, Nikolay; Lauer, Axel; Little, Bill; Loosveldt-Tomas, Saskia; de Mora, Lee; Predoi, Valeriu; Righi, Mattia; Schlund, Manuel; Vegas-Regidor, Javier; Zimmermann, Klaus https://doi.org/10.5281/zenodo.3387139

Mattia Righi et al.
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Short summary
This paper describes the second major release of the ESMValTool, a community diagnostic and performance metrics tool for the evaluation of Earth System Models. This new version features a brand new design, with an improved interface and a revised preprocessor. It takes advantage of state-of-the-art computational libraries and methods to deploy an efficient and user-friendly data processing, improving the performance over its predecessor by more than a factor of 30.
This paper describes the second major release of the ESMValTool, a community diagnostic and...
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