The CNRM-CM5.1 global climate model: description and basic evaluation

By A. Voldoire, E. Sanchez‐Gomez, D. Mélia, Bertrand Decharme, C. Cassou, S. Sénési, Sophie Valcke, I. Beau, A. Alias, M. Chevallier and 16 more. Climate Dynamics, 2013

1,354 citations recorded by the source corpus.

A new version of the general circulation model CNRM-CM has been developed jointly by CNRM-GAME (Centre National de Recherches Météorologiques—Groupe d’études de l’Atmosphère Météorologique) and Cerfacs (Centre Européen de Recherche et de Formation Avancée) in order to contribute to phase 5 of the Coupled Model Intercomparison Project (CMIP5). The purpose of the study is to describe its main features and to provide a preliminary assessment of its mean climatology. CNRM-CM5.1 includes the atmospheric model ARPEGE-Climat (v5.2), the ocean model NEMO (v3.2), the land surface scheme ISBA and the sea ice model GELATO (v5) coupled through the OASIS (v3) system. The main improvements since CMIP3 are the following. Horizontal resolution has been increased both in the atmosphere (from 2.8° to 1.4°) and in the ocean (from 2° to 1°). The dynamical core of the atmospheric component has been revised. A new radiation scheme has been introduced and the treatments of tropospheric and stratospheric aerosols have been improved. Particular care has been devoted to ensure mass/water conservation in the atmospheric component. The land surface scheme ISBA has been externalised from the atmospheric model through the SURFEX platform and includes new developments such as a parameterization of sub-grid hydrology, a new freezing scheme and a new bulk parameterisation for ocean surface fluxes. The ocean model is based on the state-of-the-art version of NEMO, which has greatly progressed since the OPA8.0 version used in the CMIP3 version of CNRM-CM. Finally, the coupling between the different components through OASIS has also received a particular attention to avoid energy loss and spurious drifts. These developments generally lead to a more realistic representation of the mean recent climate and to a reduction of drifts in a preindustrial integration. The large-scale dynamics is generally improved both in the atmosphere and in the ocean, and the bias in mean surface temperature is clearly reduced. However, some flaws remain such as significant precipitation and radiative biases in many regions, or a pronounced drift in three dimensional salinity.

Subfields: Atmospheric Science, Global and Planetary Change

View Paper: https://www.semanticscholar.org/paper/337b931ee3f6f3a9c7247e435266c37c036a6521

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Citations in the corpus

Robust increase in equilibrium climate sensitivity under global warming (2013, neutral): “6.0 [Gordon et al., 2002], CNRM-CM5 [Voldoire et al., 2013], and BCC-CSM1.”
The OASIS3 coupler: a European climate modelling community software (2012, methodology): “In addition, for CMCC-ESM only, the 10 m wind speed and the atmospheric CO2 partial pressure are transferred from the atmosphere to the ocean using a bicubic interpolation.”
Evaluation of CMIP6 DECK Experiments With CNRM‐CM6‐1 (2019, background): “1 (Voldoire et al., 2013), which was the basis for the CNRM‐Cerfacs contribution to CMIP5, CNRM‐CM6‐1 (Figure 1) corresponds to a major update of its atmospheric and land surface components.”
A fully coupled Mediterranean regional climate system model: design and evaluation of the ocean component for the 1980–2012 period (2014, methodology): “It is used at MétéoFrance to convert the runoff simulated by the ISBA landsurface scheme into river discharge using a global river channel network at 18 or 0.58 resolutions (0.58 in this RCSM4 version) (Decharme et al., 2010; Szczypta et al., 2012; Voldoire et al., 2013).”
A multi-model comparison of Atlantic multidecadal variability (2014, neutral): “The other four models are the Centre National de Recherches Me´te´orologiques Coupled Model (CNRM-CM3) (Guemas and Salas-Me´lia 2008; Voldoire et al. 2013), the Centro Euro-Mediterraneo per i Cambiamenti Climatici (CMCC) (Bellucci et al. 2008), the Model for Interdisciplinary Research on Climate…”