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Geoscientific Model Development An interactive open-access journal of the European Geosciences Union
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Volume 9, issue 9 | Copyright

Special issue: Coupled Model Intercomparison Project Phase 6 (CMIP6) Experimental...

Geosci. Model Dev., 9, 3231-3296, 2016
https://doi.org/10.5194/gmd-9-3231-2016
© Author(s) 2016. This work is distributed under
the Creative Commons Attribution 3.0 License.

Methods for assessment of models 19 Sep 2016

Methods for assessment of models | 19 Sep 2016

OMIP contribution to CMIP6: experimental and diagnostic protocol for the physical component of the Ocean Model Intercomparison Project

Stephen M. Griffies1, Gokhan Danabasoglu2, Paul J. Durack3, Alistair J. Adcroft1, V. Balaji1, Claus W. Böning4, Eric P. Chassignet5, Enrique Curchitser6, Julie Deshayes7, Helge Drange8, Baylor Fox-Kemper9, Peter J. Gleckler3, Jonathan M. Gregory10, Helmuth Haak11, Robert W. Hallberg1, Patrick Heimbach12, Helene T. Hewitt13, David M. Holland14, Tatiana Ilyina11, Johann H. Jungclaus11, Yoshiki Komuro15, John P. Krasting1, William G. Large2, Simon J. Marsland16, Simona Masina17, Trevor J. McDougall18, A. J. George Nurser19, James C. Orr20, Anna Pirani21, Fangli Qiao22, Ronald J. Stouffer1, Karl E. Taylor3, Anne Marie Treguier23, Hiroyuki Tsujino24, Petteri Uotila25, Maria Valdivieso26, Qiang Wang27, Michael Winton1, and Stephen G. Yeager2 Stephen M. Griffies et al.
  • 1NOAA Geophysical Fluid Dynamics Laboratory, Princeton, New Jersey, USA
  • 2National Center for Atmospheric Research, Boulder, Colorado, USA
  • 3Program for Climate Model Diagnosis and Intercomparison, Lawrence Livermore National Laboratory, Livermore, California, USA
  • 4GEOMAR Helmholtz Centre for Ocean Research Kiel, Germany
  • 5Center for Ocean-Atmospheric Prediction Studies (COAPS), Florida State University, Tallahassee, Florida, USA
  • 6Rutgers University, New Brunswick, New Jersey, USA
  • 7Sorbonne Universités (UPMC, Univ Paris 06-CNRS-IRD-MNHN), LOCEAN Laboratory, Paris, France
  • 8Geophysical Institute, University of Bergen, Norway
  • 9Department of Earth, Environmental, and Planetary Sciences (DEEPS), Brown University, USA
  • 10Met Office Hadley Centre and University of Reading, UK
  • 11Max Planck Institute for Meteorology Bundesstrasse 53, 20146 Hamburg, Germany
  • 12Institute for Computational Engineering and Science and Jackson School of Geosciences, The University of Texas at Austin, Austin, Texas, USA
  • 13Met Office Hadley Centre, Exeter, UK
  • 14New York University, New York, USA
  • 15Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
  • 16CSIRO Oceans and Atmosphere, Aspendale, Victoria, Australia
  • 17Centro Euromediterraneo sui Cambiamenti Climatici, and Istituto Nazionale di Geofisica e Vulcanologia, Bologna, Italy
  • 18University of New South Wales, Sydney, Australia
  • 19National Oceanography Centre Southampton (NOCS), Southampton, UK
  • 20IPSL/LSCE, UMR8212, CNRS-CEA-UVSQ, Gif-sur-Yvette, France
  • 21Université Paris Saclay, France, and Abdus Salam Institute for Theoretical Physics, Trieste, Italy
  • 22First Institute of Oceanography, State Oceanic Administration, Qingdao, China
  • 23Laboratoire d'Oceanographie Physique et Spatiale, Ifremer, Plouzane, France
  • 24Meteorological Research Institute (MRI), Japan Meteorological Agency, Tsukuba, Japan
  • 25Finnish Meteorological Institute, Helsinki, Finland
  • 26University of Reading, Reading, UK
  • 27Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research (AWI), Bremerhaven, Germany

Abstract. The Ocean Model Intercomparison Project (OMIP) is an endorsed project in the Coupled Model Intercomparison Project Phase 6 (CMIP6). OMIP addresses CMIP6 science questions, investigating the origins and consequences of systematic model biases. It does so by providing a framework for evaluating (including assessment of systematic biases), understanding, and improving ocean, sea-ice, tracer, and biogeochemical components of climate and earth system models contributing to CMIP6. Among the WCRP Grand Challenges in climate science (GCs), OMIP primarily contributes to the regional sea level change and near-term (climate/decadal) prediction GCs.

OMIP provides (a) an experimental protocol for global ocean/sea-ice models run with a prescribed atmospheric forcing; and (b) a protocol for ocean diagnostics to be saved as part of CMIP6. We focus here on the physical component of OMIP, with a companion paper (Orr et al., 2016) detailing methods for the inert chemistry and interactive biogeochemistry. The physical portion of the OMIP experimental protocol follows the interannual Coordinated Ocean-ice Reference Experiments (CORE-II). Since 2009, CORE-I (Normal Year Forcing) and CORE-II (Interannual Forcing) have become the standard methods to evaluate global ocean/sea-ice simulations and to examine mechanisms for forced ocean climate variability. The OMIP diagnostic protocol is relevant for any ocean model component of CMIP6, including the DECK (Diagnostic, Evaluation and Characterization of Klima experiments), historical simulations, FAFMIP (Flux Anomaly Forced MIP), C4MIP (Coupled Carbon Cycle Climate MIP), DAMIP (Detection and Attribution MIP), DCPP (Decadal Climate Prediction Project), ScenarioMIP, HighResMIP (High Resolution MIP), as well as the ocean/sea-ice OMIP simulations.

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The Ocean Model Intercomparison Project (OMIP) aims to provide a framework for evaluating, understanding, and improving the ocean and sea-ice components of global climate and earth system models contributing to the Coupled Model Intercomparison Project Phase 6 (CMIP6). This document defines OMIP and details a protocol both for simulating global ocean/sea-ice models and for analysing their output.
The Ocean Model Intercomparison Project (OMIP) aims to provide a framework for evaluating,...
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