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The IPCC AR6 Interactive Atlas (see also the IPCC Atlas chapter) displays future climate change projections for 22 atmospheric and oceanic variables and indices building on a harmonized gridded monthly climate projection dataset computed from global (CMIP5/6) and regional (CORDEX) experiments. The particular ensembles used are described in the IPCC AR6 Atlas Supplementary Material and do not correspond exactly with the CMIP6, CMIP5 and CORDEX datasets available from the CDS. Note that in the case of CORDEX there are only a few differences corresponding to a few CDS simulation updates, since the original CDS dataset was used for the preparation of the IPCC Interactive Atlas (see Diez-Sierra et al. 2022). In the case of CMIP5/6, differences correspond to missing or additional models and different versions/replicas; note that the CMIP5 dataset corresponds to the frozen version used in AR5 (including no subsequent versions/updates) whereas the CMIP6 dataset corresponds to the versions published before the 31 January 2021 IPCC AR6 cut-off deadline.
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