BLOCKING

Figure number: Figure 3.18 From the IPCC Working Group I Contribution to the Sixth Assessment Report: Chapter 3

Description:

Instantaneous Northern-Hemisphere blocking frequency (% of days) in the extended northern winter season (DJFM) for the years 1979-2000. Results are shown for ERA5 reanalysis (black), CMIP5 (blue) and CMIP6 (red) models. Coloured lines show multi-model means and shaded ranges show corresponding 5-95% constructed with one realization from each model Figure is adapted from Davini and D’Andrea (2020), their Figure 12 and following the D’Andrea et al. (1998) definition of blocking.

Author list:

• Kazeroni, R.: DLR, Germany; remi.kazeroni@dlr.de
• Davini, A.: CNR-ISAC, Italy
• Bock, L.: DLR, Germany
• Eyring, V.: DLR, Germany
• Morgenstern, O.: NIWA, New Zealand

Publication sources:

Davini, P., and D’Andrea, F. (2020). From CMIP3 to CMIP6: Northern hemisphere atmospheric blocking simulation in present and future climate. J. Clim. 33, 10021–10038. doi:10.1175/JCLI-D-19-0862.1.

ESMValTool Branch:

• ESMValTool-AR6-OriginalCode-FinalFigures: ar6_chapter_3

ESMValCore Branch:

• ESMValCore-AR6-OriginalCode-FinalFigures: fix_cmip6_models_newcore

Recipe & diagnostics:

Recipe used: recipes/ipccwg1ar6ch3/recipe_ipccwg1ar6ch3_blocking.yml

Diagnostic used: diag_scripts/miles/miles_block_groupby_projects.R

Expected image path:

This is the path of the image relative to the automatically generated ESMValTool output location:

• recipe_miles_block_groupby_extended_DJFM_YYYYMMDD_HHMMSS/plots/miles_diagnostics/miles_block/Multimodel/historical/1979-2000/DJFM/Block/DA98_Multimodel_historical_1979-2000_DJFM.png

Software description:

• ESMValTool environment file: IPCC_environments/ar6_newcore_remi_conda_environment.yml
• pip file: IPCC_environments/ar6_newcore_remi_pip_environment.txt

Hardware description:

Machine used: Mistral