Chapter 3 of the Working Group I Contribution to the IPCC Sixth Assessment Report - data for Figure 3.34 (v20220104)

Data for Figure 3.34 from Chapter 3 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6).



Figure 3.34 shows attribution of observed seasonal trends in the annular modes to forcings.  



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How to cite this dataset

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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.



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Figure subpanels

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The figure has 3 panels, and all the data are provided in a single file named NAM_SAM_detection_attribution.nc.



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List of data provided

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This dataset contains

- Observed and simulated DJF NAM trends for 1958-2019

- Observed and simulated JJA NAM trends for 1958-2019

- Observed and simulated DJF SAM trends for 1979-2019

- Observed and simulated JJA SAM trends for 1979-2019

- Observed and simulated DJF SAM trends for 2000-2019

- Observed and simulated JJA SAM trends for 2000-2019

Simulations are from CMIP6 historical, hist-GHG, hist-aer, hist-nat, and hist-stratO3 simulations, and from equivalent time segments from CMIP6 piControl simulations (one segment from one model).



NAM: Northern Annular Mode ​​​

SAM: Southern Annular Mode

GHG: greenhouse gas

JJA: June, July, August

DJF: December, January, February



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Data provided in relation to figure

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Panel a:

- NAM_obs_DJF_1958_2019: grey horizontal lines in the left

-->ERA5: obs_dataset = 0\n

-->JRA-55: obs_dataset = 1\n

- NAM_piControl_DJF_62yrs: multimodel ensemble mean and percentiles for blue open box-whisker in the left

- NAM_hist_DJF_1958_2019: multimodel ensemble mean and percentiles for red open box-whisker in the left, and multimodel ensemble mean and confidence interval for red filled box, with ensemble means of individual models for black dots, in the left

- NAM_GHG_DJF_1958_2019: multimodel ensemble mean and confidence interval for brown filled box, with ensemble means of individual models for black dots, in the left

- NAM_aer_DJF_1958_2019:  multimodel ensemble mean and confidence interval for light blue filled box, with ensemble means of individual models for black dots, in the left

- NAM_stratO3_DJF_1958_2019: multimodel ensemble mean and confidence interval for purple filled box, with ensemble means of individual models for black dots, in the left

- NAM_nat_DJF_1958_2019: multimodel ensemble mean and confidence interval for green filled box, with ensemble means of individual models for black dots, in the left

- NAM_obs_JJA_1958_2019: grey horizontal lines in the right

-->ERA5: obs_dataset = 0\n

-->JRA-55: obs_dataset = 1\n

- NAM_piControl_JJA_62yrs: multimodel ensemble mean and percentiles for blue open box-whisker in the right

- NAM_hist_JJA_1958_2019: multimodel ensemble mean and percentiles for red open box-whisker in the right, and multimodel ensemble mean and confidence interval for red filled box, with ensemble means of individual models for black dots, in the right

- NAM_GHG_JJA_1958_2019: multimodel ensemble mean and confidence interval for brown filled box, with ensemble means of individual models for black dots, in the right

- NAM_aer_JJA_1958_2019:  multimodel ensemble mean and confidence interval for light blue filled box, with ensemble means of individual models for black dots, in the right

- NAM_stratO3_JJA_1958_2019: multimodel ensemble mean and confidence interval for purple filled box, with ensemble means of individual models for black dots, in the right

- NAM_nat_JJA_1958_2019: multimodel ensemble mean and confidence interval for green filled box, with ensemble means of individual models for black dots, in the right

Panel b:

- SAM_obs_DJF_1979_2019: grey horizontal lines in the left

-->ERA5: obs_dataset = 0\n

-->JRA-55: obs_dataset = 1\n

- SAM_piControl_DJF_41yrs: multimodel ensemble mean and percentiles for blue open box-whisker in the left

- SAM_hist_DJF_1979_2019: multimodel ensemble mean and percentiles for red open box-whisker in the left, and multimodel ensemble mean and confidence interval for red filled box, with ensemble means of individual models for black dots, in the left

- SAM_GHG_DJF_1979_2019: multimodel ensemble mean and confidence interval for brown filled box, with ensemble means of individual models for black dots, in the left

- SAM_aer_DJF_1979_2019:  multimodel ensemble mean and confidence interval for light blue filled box, with ensemble means of individual models for black dots, in the left

- SAM_stratO3_DJF_1979_2019: multimodel ensemble mean and confidence interval for purple filled box, with ensemble means of individual models for black dots, in the left

- SAM_nat_DJF_1979_2019: multimodel ensemble mean and confidence interval for green filled box, with ensemble means of individual models for black dots, in the left

- SAM_obs_JJA_1979_2019: grey horizontal lines in the right

-->ERA5: obs_dataset = 0\n

-->JRA-55: obs_dataset = 1\n

- SAM_piControl_JJA_41yrs: multimodel ensemble mean and percentiles for blue open box-whisker in the right

- SAM_hist_JJA_1979_2019: multimodel ensemble mean and percentiles for red open box-whisker in the right, and multimodel ensemble mean and confidence interval for red filled box, with ensemble means of individual models for black dots, in the right

- SAM_GHG_JJA_1979_2019: multimodel ensemble mean and confidence interval for brown filled box, with ensemble means of individual models for black dots, in the right

- SAM_aer_JJA_1979_2019:  multimodel ensemble mean and confidence interval for light blue filled box, with ensemble means of individual models for black dots, in the right

- SAM_stratO3_JJA_1979_2019: multimodel ensemble mean and confidence interval for purple filled box, with ensemble means of individual models for black dots, in the right

- SAM_nat_JJA_1979_2019: multimodel ensemble mean and confidence interval for green filled box, with ensemble means of individual models for black dots, in the right

Panel c:

- SAM_obs_DJF_2000_2019: grey horizontal lines in the left

-->ERA5: obs_dataset = 0\n

-->JRA-55: obs_dataset = 1\n

- SAM_piControl_DJF_20yrs: multimodel ensemble mean and percentiles for blue open box-whisker in the left

- SAM_hist_DJF_2000_2019: multimodel ensemble mean and percentiles for red open box-whisker in the left, and multimodel ensemble mean and confidence interval for red filled box, with ensemble means of individual models for black dots, in the left

- SAM_GHG_DJF_2000_2019: multimodel ensemble mean and confidence interval for brown filled box, with ensemble means of individual models for black dots, in the left

- SAM_aer_DJF_2000_2019:  multimodel ensemble mean and confidence interval for light blue filled box, with ensemble means of individual models for black dots, in the left

- SAM_stratO3_DJF_2000_2019: multimodel ensemble mean and confidence interval for purple filled box, with ensemble means of individual models for black dots, in the left

- SAM_nat_DJF_2000_2019: multimodel ensemble mean and confidence interval for green filled box, with ensemble means of individual models for black dots, in the left

- SAM_obs_JJA_2000_2019: grey horizontal lines in the right

-->ERA5: obs_dataset = 0\n

-->JRA-55: obs_dataset = 1\n

- SAM_piControl_JJA_20yrs: multimodel ensemble mean and percentiles for blue open box-whisker in the right

- SAM_hist_JJA_2000_2019: multimodel ensemble mean and percentiles for red open box-whisker in the right, and multimodel ensemble mean and confidence interval for red filled box, with ensemble means of individual models for black dots, in the right

- SAM_GHG_JJA_2000_2019: multimodel ensemble mean and confidence interval for brown filled box, with ensemble means of individual models for black dots, in the right

- SAM_aer_JJA_2000_2019:  multimodel ensemble mean and confidence interval for light blue filled box, with ensemble means of individual models for black dots, in the right

- SAM_stratO3_JJA_2000_2019: multimodel ensemble mean and confidence interval for purple filled box, with ensemble means of individual models for black dots, in the right

- SAM_nat_JJA_2000_2019: multimodel ensemble mean and confidence interval for green filled box, with ensemble means of individual models for black dots, in the right



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Notes on reproducing the figure from the provided data

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Multimodel ensemble means, interquartile ranges and 5th and 95th percentiles of historical and hist-* simulations are calculated after weighting individual members with the inverse of the ensemble size of the same model. The weight is given as the weight attribute of each variable. The weighting is not applied to piControl simulations.



Filled boxes and black dots are evaluated based on the models with minimum 3 ensemble members. ensemble_assign attribute in each variable provides the model number to which each ensemble member belongs. For the confidence interval, first the ensemble average of individual models (with minimum 3 ensemble members) are calculated and then the confidence interval is evaluated based on t statistic.



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Sources of additional information

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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 supporting information on the figure in Section and 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

Simple

Date (Publication)
2022-05-09T17:30:32
Date (Creation)
2022-05-09T17:30:32
Citation identifier
https://catalogue.ceda.ac.uk/uuid/678ee967fe114a34a6d1f7d50e4aa7ee
Citation identifier
NERC EDS Centre for Environmental Data Analysis / 678ee967fe114a34a6d1f7d50e4aa7ee
Citation identifier
doi / 10.5285/678ee967fe114a34a6d1f7d50e4aa7ee
Point of contact
Organisation name Individual name Electronic mail address Role

Unavailable

Phillips, Adam

Unavailable

 		Author

Unavailable

Kosaka, Yu

Unavailable

 		Author

Unavailable

Cassou, Christophe

Unavailable

 		Author

Unavailable

Bock, Lisa

Unavailable

 		Author

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

Custodian

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

Distributor

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

pointofContact

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

Publisher
Maintenance and update frequency
Not planned
Update scope
Dataset
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 3.17

  • Global monsoon domain

  • monsoon precipitation

  • monsoon circulation

  • global land monsoon precipitation

  • Northern Hemisphere summer monsoon circulation index

  • CMIP5

  • CMIP6

  • AMIP

  • Figure 3.34

  • Annular Modes

  • NAM

  • SAM

  • modes of variability

  • CMIP6

  • DAMIP

  • detection and attribution

GEMET - INSPIRE themes, version 1.0

  • atmospheric conditions
Access constraints
Other restrictions
Other constraints
Public data: access to these data is available to both registered and non-registered users.
Use constraints
Other restrictions
Other constraints
Under the following licence http://creativecommons.org/licenses/by/4.0/, appropriate use of these data may fall under any use. This message is intended as guidance, always read the full licence. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Spatial representation type
Grid
Language
English
Topic category
  • Climatology, meteorology, atmosphere
N
S
E
W
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Begin date
1958-01-01T12:00:00
End date
2019-12-31T12:00:00
Unique resource identifier
WGS 84
Distribution format
Name Version

txt, netCDF
Distributor contact
Organisation name Individual name Electronic mail address Role

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

Distributor
OnLine resource
Protocol Linkage Name
https://catalogue.ceda.ac.uk/uuid/678ee967fe114a34a6d1f7d50e4aa7ee

CEDA Data Catalogue Page
OnLine resource
Protocol Linkage Name
http://data.ceda.ac.uk/badc/ar6_wg1/data/ch_03/ch3_fig34/v20220404

DOWNLOAD
OnLine resource
Protocol Linkage Name
https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_Chapter03.pdf

ORIGIN OF FIGURE (IPCC REPORT CHAPTER): 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

OnLine resource
Protocol Linkage Name
https://www.ipcc.ch/report/ar6/wg1/downloads/report/IPCC_AR6_WGI_Chapter_03_Supplementary_Material.pdf

SUPPLEMENTARY MATERIAL FOR REPORT CHAPTER: 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 Supplementary Material. 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

OnLine resource
Protocol Linkage Name
https://doi.org/10.5281/zenodo.6656792

CODE FOR FIGURE (archived at Zenodo)
OnLine resource
Protocol Linkage Name
https://www.ipcc.ch/report/ar6/wg1/figures/chapter-3/figure-3-34

Link to the figure
OnLine resource
Protocol Linkage Name
https://doi.org/10.5281/zenodo.14986385

Complex Citation Object: CMIP6 input data usage information for IPCC WGI AR6 figure 3.34, Zenodo. https://doi.org/10.5281/zenodo.14986385

Hierarchy level
Dataset

Conformance result

Title

Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services

Date (Publication)
2010-12-08
Statement

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).

Metadata

File identifier
678ee967fe114a34a6d1f7d50e4aa7ee XML
Metadata language
English
Character set
UTF8
Parent identifier
IPCC Sixth Assessment Report (AR6) Chapter 3: Human influence on the climate system

932c79b1f7cd4f34b7c542f316f39c17
Hierarchy level
Dataset
Date stamp
2026-02-16T03:22:11
Metadata standard name
UK GEMINI
Metadata standard version

2.3
Metadata author
Organisation name Individual name Electronic mail address Role

NERC EDS Centre for Environmental Data Analysis

support@ceda.ac.uk

Point of contact
 
 

Overviews

Spatial extent

thumbnail

Keywords

GEMET - INSPIRE themes, version 1.0

atmospheric conditions


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