ILLUSTRATION OF MODEL BIASES WESTERN MEDITERRANEAN

Figure number: Figure 10.6 From the IPCC Working Group I Contribution to the Sixth Assessment Report: Chapter 10

Description:

Illustration of some model biases in simulations performed with dynamical models. (a) Top row: Mean summer (June to August) near-surface air temperature (in °C) over the Mediterranean area in Berkeley Earth and respective mean bias for five multi-model historical experiments with GCMs (CMIP5, CMIP6 and HighResMIP) and RCMs (CORDEX EUR-44 and EUR-11) averaged between 1986–2005. Bottom row: Box-and-whisker plot shows spread of the 20 annual mean summer surface air temperature averaged over land areas in the western Mediterranean region (33°N–45°N, 10°W–10°E, black quadrilateral in the first panel of the top row) for a set of references and single model runs of the five multi-model experiments (one simulation per model) between 1986–2005. Additional observation and reanalysis data included in the bottom row are CRU TS, HadCRUT4, HadCRUT5, E-OBS, WFDE5, ERA5, ERA-Interim, CERA-20C, JRA-25, JRA-55, CFSR, MERRA2, MERRA. Berkeley Earth is shown in the first box to the left. (b) as (a) but for precipitation rate (mm day -1 ) and showing CRU TS in the first panel of the top row. Biases of the five multi-model experiments are shown with respect to CRU TS. Additional observation and reanalysis data included in the bottom row are GPCC, REGEN, E-OBS, GHCN, WFDE5, CFSR, ERA-Interim, ERA5, JRA-55, MERRA2, MERRA. CRU TS is shown in the first box to the left. All box-and-whisker plots show the median (line), and the interquartile range (IQR = Q3–Q1, box), with top whiskers extending to the last data less than Q3+1.5×IQR and analogously for bottom whiskers. Data outside the whiskers range appear as flyers (circles). Further details on data sources and processing are available in the chapter data table (Table 10.SM.11).

Author list:

• Jury, M.W.: BSC, Spain; martin.w.jury@gmail.com; githubid: mwjury
• Doblas-Reyes, F.J.: BSC, Spain

Publication sources:

N/A

ESMValTool Branch:

• ESMValTool-AR6-OriginalCode-FinalFigures: ar6_chapter_10

ESMValCore Branch:

• ESMValCore-AR6-OriginalCode-FinalFigures: working_cordex_2.2

Recipe & diagnostics:

Recipe used: recipes/ar6_wgi_ch10/recipe_boxplot_Med.yml

Diagnostic used: diag_scripts/ar6_wgi_ch10/diagnostic_IPCC_AR6_CH10.py

Expected image path:

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

• recipe_boxplot_Med_YYYYMMDD_HHMMSS/plots/ch_10/fig_6/Fig_6.png

Recipe generations tools:

N/A

Ancillary figures and datasets:

N/A

Additional datasets:

N/A

Software description:

• ESMValTool environment file: IPCC_environments/ar6_chapter_10_conda_environment.yml
• pip file: IPCC_environments/ar6_chapter_10_pip_environment.txt

Hardware description:

Internal Wegener Center (University of Graz, Austria) machine wegc203128.

** The documentation was created by Chapter 10 Chapter Scientist Martin W. Jury (email: martin.w.jury@gmail.com, githubid: mwjury). Please, contact Martin in case any questions in documentation arise.