Figure number: FAQ 3.3 From the IPCC Working Group I Contribution to the Sixth Assessment Report: Chapter 3

Pattern correlations between models and observations of three different variables: surface air temperature, precipitation and sea level pressure. Results are shown for the three last generations of models, from the Coupled Model Intercomparison Project (CMIP): CMIP3 (orange), CMIP5 (blue) and CMIP6 (purple). Individual model results are shown as short lines, along with the corresponding ensemble average (long line). For the correlations the yearly averages of the models are compared with the reference observations for the period 1980-1999, with 1 representing perfect similarity between the models and observations. CMIP3 simulations performed in 2003-2007 were assessed in the IPCC Fourth Assessment, CMIP5 simulations performed in 2008-2013 were assessed in the IPCC Fifth Assessment, and CMIP6 simulations performed in 2015-2021 are assessed for in the IPCC Sixth Assessment.

• Bock, L.: DLR, Germany; [email protected]
• Eyring, V.: DLR., Germany
• Morgenstern, O.: NIWA, New Zealand

Bock, L., Lauer, A., Schlund, M., Barreiro, M., Bellouin, N., Jones, C., Predoi, V., Meehl, G., Roberts, M., and Eyring, V.: Quantifying progress across different CMIP phases with the ESMValTool, Journal of Geophysical Research: Atmospheres, 125, e2019JD032321. https://doi.org/10.1029/2019JD032321

• ESMValTool-AR6-OriginalCode-FinalFigures: ar6_chapter_3

• ESMValCore-AR6-OriginalCode-FinalFigures: fix_cmip6_models_newcore

Recipe used:

• recipes/ipccwg1ar6ch3/recipe_ipccwg1ar6ch3_fig_faq3_3_ens.yml

Diagnostics used:

• diag_scripts/ipcc_ar6/corr_pattern.ncl
• diag_scripts/ipcc_ar6/corr_pattern_collect.ncl

• recipe_ipccwg1ar6ch3_fig_faq3_3_ens_YYYYMMDD_HHMMSS/plots/fig_6/cor_collect/patterncor.pdf

• ESMValTool environment file: IPCC_environments/ar6_newcore_lisa_conda_environment.yml
• pip file: IPCC_environments/ar6_newcore_lisa_pip_environment.txt

Machine used: Mistral