Articles | Volume 13, issue 6
https://doi.org/10.5194/gmd-13-2723-2020
https://doi.org/10.5194/gmd-13-2723-2020
Methods for assessment of models
 | Highlight paper
 | 
18 Jun 2020
Methods for assessment of models | Highlight paper |  | 18 Jun 2020

Towards an objective assessment of climate multi-model ensembles – a case study: the Senegalo-Mauritanian upwelling region

Juliette Mignot, Carlos Mejia, Charles Sorror, Adama Sylla, Michel Crépon, and Sylvie Thiria

Related authors

Impact of volcanic eruptions on CMIP6 decadal predictions: a multi-model analysis
Roberto Bilbao, Pablo Ortega, Didier Swingedouw, Leon Hermanson, Panos Athanasiadis, Rosie Eade, Marion Devilliers, Francisco Doblas-Reyes, Nick Dunstone, An-Chi Ho, William Merryfield, Juliette Mignot, Dario Nicolì, Margarida Samsó, Reinel Sospedra-Alfonso, Xian Wu, and Stephen Yeager
Earth Syst. Dynam., 15, 501–525, https://doi.org/10.5194/esd-15-501-2024,https://doi.org/10.5194/esd-15-501-2024, 2024
Short summary
IPSL-CM5A2 – an Earth system model designed for multi-millennial climate simulations
Pierre Sepulchre, Arnaud Caubel, Jean-Baptiste Ladant, Laurent Bopp, Olivier Boucher, Pascale Braconnot, Patrick Brockmann, Anne Cozic, Yannick Donnadieu, Jean-Louis Dufresne, Victor Estella-Perez, Christian Ethé, Frédéric Fluteau, Marie-Alice Foujols, Guillaume Gastineau, Josefine Ghattas, Didier Hauglustaine, Frédéric Hourdin, Masa Kageyama, Myriam Khodri, Olivier Marti, Yann Meurdesoif, Juliette Mignot, Anta-Clarisse Sarr, Jérôme Servonnat, Didier Swingedouw, Sophie Szopa, and Delphine Tardif
Geosci. Model Dev., 13, 3011–3053, https://doi.org/10.5194/gmd-13-3011-2020,https://doi.org/10.5194/gmd-13-3011-2020, 2020
Short summary
Is deoxygenation detectable before warming in the thermocline?
Angélique Hameau, Thomas L. Frölicher, Juliette Mignot, and Fortunat Joos
Biogeosciences, 17, 1877–1895, https://doi.org/10.5194/bg-17-1877-2020,https://doi.org/10.5194/bg-17-1877-2020, 2020
Short summary
Reconstructing climatic modes of variability from proxy records using ClimIndRec version 1.0
Simon Michel, Didier Swingedouw, Marie Chavent, Pablo Ortega, Juliette Mignot, and Myriam Khodri
Geosci. Model Dev., 13, 841–858, https://doi.org/10.5194/gmd-13-841-2020,https://doi.org/10.5194/gmd-13-841-2020, 2020
Short summary
Generation of Rossby waves off the Cape Verde Peninsula: the role of the coastline
Jérôme Sirven, Juliette Mignot, and Michel Crépon
Ocean Sci., 15, 1667–1690, https://doi.org/10.5194/os-15-1667-2019,https://doi.org/10.5194/os-15-1667-2019, 2019
Short summary

Related subject area

Numerical methods
Numerical stabilization methods for level-set-based ice front migration
Gong Cheng, Mathieu Morlighem, and G. Hilmar Gudmundsson
Geosci. Model Dev., 17, 6227–6247, https://doi.org/10.5194/gmd-17-6227-2024,https://doi.org/10.5194/gmd-17-6227-2024, 2024
Short summary
Modelling chemical advection during magma ascent
Hugo Dominguez, Nicolas Riel, and Pierre Lanari
Geosci. Model Dev., 17, 6105–6122, https://doi.org/10.5194/gmd-17-6105-2024,https://doi.org/10.5194/gmd-17-6105-2024, 2024
Short summary
Consistent point data assimilation in Firedrake and Icepack
Reuben W. Nixon-Hill, Daniel Shapero, Colin J. Cotter, and David A. Ham
Geosci. Model Dev., 17, 5369–5386, https://doi.org/10.5194/gmd-17-5369-2024,https://doi.org/10.5194/gmd-17-5369-2024, 2024
Short summary
A computationally efficient parameterization of aerosol, cloud and precipitation pH for application at global and regional scale (EQSAM4Clim-v12)
Swen Metzger, Samuel Rémy, Jason E. Williams, Vincent Huijnen, and Johannes Flemming
Geosci. Model Dev., 17, 5009–5021, https://doi.org/10.5194/gmd-17-5009-2024,https://doi.org/10.5194/gmd-17-5009-2024, 2024
Short summary
Assessing the benefits of approximately exact step sizes for Picard and Newton solver in simulating ice flow (FEniCS-full-Stokes v.1.3.2)
Niko Schmidt, Angelika Humbert, and Thomas Slawig
Geosci. Model Dev., 17, 4943–4959, https://doi.org/10.5194/gmd-17-4943-2024,https://doi.org/10.5194/gmd-17-4943-2024, 2024
Short summary

Cited articles

Borodina, A., Fischer, E. M., and Knutti, R.: Potential to constrain projections of hot temperature extremes, J. Climate, 30, 9949–9964, https://doi.org/10.1175/JCLI-D-16-0848.1, 2017. 
Capet, X., Estrade, P., Machu, E., Ndoye, S., Grelet, J., Lazar, A., Marié, L., Dausse, D., Brehmer, P., Capet, X., Estrade, P., Machu, E., Ndoye, S., Grelet, J., Lazar, A., Marié, L., Dausse, D., and Brehmer, P.: On the Dynamics of the Southern Senegal Upwelling Center: Observed Variability from Synoptic to Superinertial Scales, J. Phys. Oceanogr., 47, 155–180, https://doi.org/10.1175/JPO-D-15-0247.1, 2017. 
Collins, M., Knutti, R., Dufresne, J.-L., Fichefet, T., Friedlingstein, P., Gao, X., Gutowski, W. J., Johns, T., Krinner, G., Shongwe, M., Tebaldi, C., Weaver, A. J., and Wehner, M.: Long-term Climate Change: Projections, Commitments and Irreversibility, in Climate Change 2013: The Physical Science Basis. Contribution of Working Group I to the Fifth Assessment Report of the Intergovernmental Panel on Climate Change, edited by: Stocker, T. F., Qin, G.-K. D., Plattner, M., Tignor, S. K., Allen, J., Boschung, A., Nauels, Y., Xia, Y., Bex, P. M., and Midgley, V., Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, 2014. 
Cox, P. M., Pearson, D., Booth, B. B., Friedlingstein, P., Huntingford, C., Jones, C. D., and Luke, C. M.: Sensitivity of tropical carbon to climate change constrained by carbon dioxide variability, Nature, 494, 341–344, https://doi.org/10.1038/nature11882, 2013. 
Cropper, T. E., Hanna, E., and Bigg, G. R.: Spatial and temporal seasonal trends in coastal upwelling off Northwest Africa, 1981-2012, Deep. Res. Pt. I, 86, 94–111, https://doi.org/10.1016/j.dsr.2014.01.007, 2014. 
Download
Short summary
The most robust representation of climate is usually obtained by averaging a large number of simulations, thereby cancelling individual model errors. Here, we work towards an objective way of selecting the least biased models over a certain region, based on physical parameters. This statistical method based on a neural classifier and multi-correspondence analysis is illustrated here for the Senegalo-Mauritanian region, but it could potentially be developed for any other region or process.