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Chapter 3 of the Working Group I Contribution to the IPCC Sixth Assessment Report - data for Figure 3.31 (v20211203)

Update Frequency: Not Planned
Latest Data Update: 2022-04-01
Status: Completed
Online Status: ONLINE
Publication State: Citable
Publication Date: 2022-04-01
DOI Publication Date: 2023-02-08
Download Stats: last 12 months
Dataset Size: 6 Files | 118KB


Data for Figure 3.31 from Chapter 3 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6).

Figure 3.31 shows evaluation of historical emission-driven CMIP6 simulations for 1850-2014.

How to cite this dataset
When citing this dataset, please include both the data citation below (under 'Citable as') and the following citation for the report component from which the figure originates:
Eyring, V., N.P. Gillett, K.M. Achuta Rao, R. Barimalala, M. Barreiro Parrillo, N. Bellouin, C. Cassou, P.J. Durack, Y. Kosaka, S. McGregor, S. Min, O. Morgenstern, and Y. Sun, 2021: Human Influence on the Climate System. In Climate Change 2021: The Physical Science Basis. Contribution of Working Group I to the Sixth Assessment Report of the Intergovernmental Panel on Climate Change [Masson-Delmotte, V., P. Zhai, A. Pirani, S.L. Connors, C. Péan, S. Berger, N. Caud, Y. Chen, L. Goldfarb, M.I. Gomis, M. Huang, K. Leitzell, E. Lonnoy, J.B.R. Matthews, T.K. Maycock, T. Waterfield, O. Yelekçi, R. Yu, and B. Zhou (eds.)]. Cambridge University Press, Cambridge, United Kingdom and New York, NY, USA, pp. 423–552, doi:10.1017/9781009157896.005.

Figure subpanels
The figure has four panels, with data provided for all panels in subdirectories named panel_a, panel_b, panel_c and panel_d.

List of data provided
This dataset contains:

- Observed and simulated change in global mean atmospheric CO2 concentration (1850-2014)
- Observed and simulated air surface temperature anomaly (1850-2014)
- Observed and simulated change in land carbon uptake (1850-2014)
- Observed and simulated change in ocean carbon uptake (1850-2014)

Data provided in relation to figure

- dim0 = 0: 'ACCESS-ESM1-5 ', (turquoise solid line), Australian Community Climate and Earth System Simulator - Earth System Model
- dim0 = 1: 'CNRM-ESM2-1', (light green solid line), National Centre for Meteorological Research
- dim0 = 2: 'CanESM5-CanOE ', (orange solid line), Canadian Earth System Model - Canadian Ocean Ecosystem model
- dim0 = 3: 'CanESM5', (dark green solid line).
- dim0 = 4: 'MIROC-ES2L', (light purple solid line), Japan Agency for Marine-Earth Science and Technology (JAMSTEC) and Centre for Climate System Research / National Institute for Environmental Studies, Japan.
- dim0 = 5: 'MPI-ESM1-2-LR ', (teal solid line), Max Planck Institute Earth System Model
- dim0 = 6: 'MRI-ESM2-0', (lime solid line), Meteorological Research Institute of the Japan Meteorological Agency
- dim0 = 7: 'NorESM2-LM', (pink solid line), The Norwegian Earth System Model
- dim0 = 8: 'UKESM1-0-LL', (dark purple solid line), UK Earth System Model
- dim0 = 9: 'MultiModelMean', (red solid line).
- dim0 = 10: 'ESRL' (OBS), (black solid line).


- dim0_0 = 0: 'ACCESS-ESM1-5',
- dim0_0 = 1: 'ACCESS-ESM1-5_historical'.
- dim0_0 = 2: 'CNRM-ESM2-1'.
- dim0_0 = 3: 'CNRM-ESM2-1_historical'.
- dim0_0 = 4: 'CanESM5-CanOE '.
- dim0_0 = 5: 'CanESM5-CanOE_historical'.
- dim0_0 = 6: 'CanESM5'.
- dim0_0 = 7: 'CanESM5_historical'.
- dim0_0 = 8: 'MIROC-ES2L'.
- dim0_0 = 9: 'MIROC-ES2L_historical'.
- dim0_0 = 10: 'MPI-ESM1-2-LR '.
- dim0_0 = 11: 'MPI-ESM1-2-LR_historical '.
- dim0_0 = 12: 'MRI-ESM2-0'.
- dim0_0 = 13: 'MRI-ESM2-0_historical'.
- dim0_0 = 14: 'NorESM2-LM'.
- dim0_0 = 15: 'NorESM2-LM_historical'.
- dim0_0 = 16: 'UKESM1-0-LL'.
- dim0_0 = 17: 'UKESM1-0-LL_historical'.
- dim0_0 = 18: 'HadCRUT5' (OBS), Met Office Hadley Centre


- dim0 = 0: 'ACCESS-ESM1-5 '.
- dim0 = 1: 'CNRM-ESM2-1'.
- dim0 = 2: 'CanESM5-CanOE '.
- dim0 = 3: 'CanESM5'.
- dim0 = 4: 'MIROC-ES2L'.
- dim0 = 5: 'MPI-ESM1-2-LR '.
- dim0 = 6: 'MRI-ESM2-0'.
- dim0 = 7: 'NorESM2-LM'.
- dim0 = 8: 'UKESM1-0-LL'.
- dim0 = 9: 'MultiModelMean'.
- dim0 = 10: 'GCP' (OBS), Global Carbon Project (GCP)


- dim0 = 0: 'ACCESS-ESM1-5 '.
- dim0 = 1: 'CNRM-ESM2-1'.
- dim0 = 2: 'CanESM5-CanOE '.
- dim0 = 3: 'CanESM5'.
- dim0 = 4: 'MIROC-ES2L'.
- dim0 = 5: 'MPI-ESM1-2-LR '.
- dim0 = 6: 'MRI-ESM2-0'.
- dim0 = 7: 'NorESM2-LM'.
- dim0 = 8: 'UKESM1-0-LL'.
- dim0 = 9: 'MultiModelMean'.
- dim0 = 10: 'GCP' (OBS).

Labels and colors for all figures are the same as for panel a. Historical values in panel b are plotted with the same colors as the corresponding simulation, but using dotted lines.

Sources of additional information
The following weblinks are provided in the Related Documents section of this catalogue record:
- Link to the report component containing the figure (Chapter 3)
- Link to the Supplementary Material for Chapter 3, which contains details on the input data used in Table 3.SM.1
- Link to the code for the figure, archived on Zenodo
- Link to the figure on the IPCC AR6 website

Citable as:  Gier, T.; Bock, L. (2023): Chapter 3 of the Working Group I Contribution to the IPCC Sixth Assessment Report - data for Figure 3.31 (v20211203). NERC EDS Centre for Environmental Data Analysis, 08 February 2023. doi:10.5285/a4cbbffe1bd44c7ba3e8608ee9c54547.
Abbreviation: Not defined
Keywords: IPCC-DDC, IPCC, AR6, WG1, WGI, Sixth Assessment Report, Working Group I, Physical Science Basis, Chapter 3, Human influence, large-scale indicators, Natural variability, anthropogenically-forced change, observed changes, Figure 3.31, global mean atmospheric CO2 concentration, air surface temperature anomaly, land carbon uptake, ocean carbon uptake, historical emission-driven CMIP6 simulations


Previous Info:
No news update for this record
Previously used record identifiers:
No related previous identifiers.
Access rules:
Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data lineage:

Data produced by Intergovernmental Panel on Climate Change (IPCC) authors and supplied for archiving at the Centre for Environmental Data Analysis (CEDA) by the Technical Support Unit (TSU) for IPCC Working Group I (WGI).
Data curated on behalf of the IPCC Data Distribution Centre (IPCC-DDC).

Data Quality:
Data as provided by the IPCC
File Format:

Process overview

This dataset was generated by the computation detailed below.

Caption for Figure 3.31 from Chapter 3 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6)


Figure 3.31 | Evaluation of historical emissions-driven CMIP6 simulations for 1850–2014. Observations (black) are compared to simulations of global mean (a) atmospheric CO2 concentration (ppmv), with observations from the National Oceanic and Atmospheric Administration Earth System Research Laboratory (NOAA ESRL; Dlugokencky and Tans, 2020); (b) surface air temperature anomaly (°C) with respect to the 1850–1900 mean, with observations from HadCRUT4 (Morice et al., 2012); (c) land carbon uptake (PgC yr–1), (d) ocean carbon uptake (PgC yr–1), both with observations from the Global Carbon Project (GCP; Friedlingstein et al., 2019) and grey shading indicating the observational uncertainty. Land and ocean carbon uptakes are plotted using a 10-year running mean for better visibility. The ocean uptake is offset to 0 in 1850 to correct for pre-industrial riverine-induced carbon fluxes. Further details on data sources and processing are available in the chapter data table (Table 3.SM.1).

Input Description


Output Description


Software Reference


  • var_id: tas
  • units: K
  • standard_name: air_temperature_anomaly
  • long_name: Near-Surface Air Temperature Anomaly
  • units: 1
  • long_name: dataset
  • var_id: dataset_0
  • var_id: year
  • long_name: year
  • units: 1

Co-ordinate Variables

Temporal Range
Start time:
End time:
Geographic Extent