CNRM-CM6-1 model

Description

 CNRM-CM6-1 is the climate model developped by the CNRM/CERFACS modelling group for CMIP6. It is the successor of the CNRM-CM5.1 climate model that participates to CMIP5.

 As shown in Figure 1, its atmosphere is simulated using the ARPEGE-Climat v6.3 GCM in which the land surface is represented using the ISBA-CTRIP land surface system and lakes using a revised version of the FLake lake model, both embedded in the SURFEX v8.0 externalised surface system. This land-atmosphere continuum is fully-coupled every hours with the NEMO ocean model and the GELATO sea-ice scheme using the OASIS-MCT coupler.

 CNRM-CM6-1 is interfaced with the Xml configurable Input/Output Server (XIOS) developped by IPSL/LSCE in order to provide both high performance output for massively parallel simulations, an easy configuration of model outputs and of some inline post-processing

 More details on model components here

Figure 1 - Schematic representation of the CNRM-CM6-1 climate model

Future projections (ScenarioMIP):

 The Tier 1 scenarios ssp146, ssp245, ssp370 and ssp585 have been run with CNRM-CM6-1. 6 members for all scenarios are available.

Figure 2 - Global mean near surface temperature evolution (year averages)

Detection-Attribution (DAMIP):

 DAMIP allows to disentangle the contribution of the GHGs gases, aerosols and natural forcing contribution to the historical surface temperature tedendecies in historical simulations :

Figure 3 - Global mean near surface temperature anomaly to piControl

References:

• Voldoire et al., 2019. Evaluation of CMIP6 DECK experiments with CNRM-CM6-1, Journal of Advances in Modeling Earth Systems, https://doi.org/10.1029/2019MS001683

• References of model components here