Dataset
Chapter 3 of the Working Group I Contribution to the IPCC Sixth Assessment Report - data for Figure 3.30 (v20220614)
Abstract
Data for Figure 3.30 from Chapter 3 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6).
Figure 3.30 shows observed and CMIP6 simulated AMOC mean state, variability and long-term trends.
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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 6 subpanels with data provided for all panels in subdirectories named panel_a, panel_b, panel_c, panel_d, panel_e and panel_f.
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List of data provided
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This dataset contains:
- AMOC streamfunction profiles from CMIP5 (1860-2004) and CMIP6 (1860-2014) historical simulations
- AMOC mean maximum overturning depth from CMIP5 (1860-2004) and CMIP6 (1860-2014) historical simulations
- AMOC mean maximum overturning depth from RAPID observational dataset (2004-2018)
- AMOC mean maximum overturning streamfunction from CMIP5 (1860-2004) and CMIP6 (1860-2014) historical simulations
- AMOC mean maximum overturning streamfunction from RAPID observational dataset (2004-2018)
- AMOC 8-year trends from CMIP5 and CMIP6 simulations and RAPID observations (2004-2012)
- Interannual AMOC changes from CMIP5 and CMIP6 simulations and RAPID observations (2008-2010)
- Longterm AMOC trends (1850-2014) from CMIP6 simulations
- Longterm AMOC trends (1940-1985) from CMIP6 simulations
- Longterm AMOC trends (1985-2014) from CMIP6 simulations
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Data provided in relation to figure
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- panel_a/amoc_mean_state_boxes.csv has the data for the grey observations lines and blue and red boxes with whiskers
- panel_a/amoc_profiles_shadings.csv has data for the blue and red profile shadings.
- panel_a/amoc_profile_cmip5.csv has data for the blue profile
- panel_a/amoc_profile_cmip6.csv has data for the red profile
- panel_b/amoc_trends_2004_2012.csv has data for boxes and whiskers and outlier dots
- panel_b/amoc_trends_cmip5_cmip6_additional_outliers.csv has data for additional outlier dots for CMIP5 and CMIP6
- panel_c/interannual_variability_AMOC.csv has data for boxes and whiskers and outlier dots
- panel_c/interannual_variability_AMOC_cmip5_cmip6_additional_outliers.csv has data for additional outlier dots for CMIP5 and CMIP6
- panel_d/amoc_longtern_trend_1850_2014.csv has data for grey, green, blue and orange boxes and whiskers
- panel_e/amoc_longtern_trend_1940_1985.csv has data for grey, green, blue and orange boxes and whiskers
- panel_f/amoc_longtern_trend_1985_2014.csv has data for grey, green, blue and orange boxes and whiskers
CMIP6 is the sixth phase of the Coupled Model Intercomparison Project.
AMOC is the Atlantic Meridional Overturning Circulation.
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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 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
Details
| Previous Info: |
No news update for this record
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| Previously used record identifiers: |
No related previous identifiers.
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| 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: http://creativecommons.org/licenses/by/4.0/. 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 Quality: |
Data as provided by the IPCC
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| File Format: |
Data are netCDF formatted
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Related Documents
Process overview
| Title | Caption for Figure 3.30 from Chapter 3 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6) |
| Abstract | Observed and CMIP6 simulated AMOC mean state, variability and long-term trends. (a) AMOC meridional stream function profiles at 26.5°N from the historical CMIP5 (1860–2004) and CMIP6 (1860–2014) simulations compared with the mean maximum overturning depth (horizontal grey line) and magnitude (vertical grey line) from the RAPID observations (2004–2018). The distributions of model ranges of AMOC maximum magnitude and depth are respectively displayed on the x- and y-axis. (b) Distributions of overlapping eight-year AMOC trends from individual CMIP6 historical simulations (pink box plots) are plotted along with the combined distributions of all available CMIP5 (blue boxplot) and CMIP6 (red boxplot) models. For reference, the observed eight-year trend calculated between 2004–2012 is also shown as a horizontal grey line (following Roberts et al., 2014). (c) Distributions of interannual AMOC variability from individual CMIP6 model historical simulations, along with the combined distributions of all available CMIP5 and CMIP6 models. Interannual variability in models and observations are estimated as annual mean (April–March) differences, and the horizontal grey line is the observed value for 2009/2010 minus 2008/2009 (following Roberts et al., 2014). (d–f) Distributions of linear AMOC trends calculated over various time periods (see panel titles) in CMIP6 simulations forced with: greenhouse gas forcing only (GHG), natural forcing only (NAT), anthropogenic aerosol forcing only (AER) and all forcing combined (Historical; HIST). (a–f) Boxes indicate the 25th to 75th percentile range, whiskers indicate 1st and 99th percentiles, and dots indicate outliers, while the horizontal black line is the multi-model mean trend. In (d–f) the multi-model mean trend is also written above each distribution. The multi-model distributions in (a–c) were produced with one historical ensemble member per model for which the AMOC variable was available (listed), while those in (d–f) were produced with the AMOC detection and attribution simulation datasets utilized by Menary et al. (2020). Further details on data sources and processing are available in the chapter data table (Table 3.SM.1). |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
- var_id: 1
- long_name: Dataset_name
- units: Dataset_name
- units: m
- long_name: Depth
- var_id: 1
- var_id: 1
- long_name: Experiment
- units: Experiment
- var_id: 3
- units: Sv/decade
- long_name: bottom_box_25_perc
- var_id: 8
- units: Sv/decade
- long_name: bottom_outlier_point
- var_id: 2
- units: Sv/decade
- long_name: bottom_whisker_1_perc
- var_id: 2
- units: Tg/s
- long_name: cmip5_shading_left
- var_id: 3
- units: Tg/s
- long_name: cmip5_shading_right
- var_id: 2
- units: Tg/s
- long_name: cmip6_red_line
- var_id: 4
- units: Tg/s
- long_name: cmip6_shading_left
- var_id: 5
- units: Tg/s
- long_name: cmip6_shading_right
- var_id: 12
- long_name: color
- units: color
- units: m
- var_id: 5
- long_name: depth_box_bottom
- units: m
- var_id: 4
- long_name: depth_box_top
- units: m
- var_id: 2
- long_name: depth_line
- units: m
- var_id: 6
- long_name: depth_whisk_bottom
- units: m
- var_id: 3
- long_name: depth_whisk_top
- var_id: 4
- units: Sv/decade
- long_name: hotizontal_line_mean
- var_id: 9
- units: Tg/s
- long_name: stream_f_box_left
- var_id: 10
- long_name: stream_f_box_right
- units: Tg/s
- var_id: 7
- units: Tg/s
- long_name: stream_f_line
- var_id: 8
- units: Tg/s
- long_name: stream_f_whisk_left
- var_id: 11
- units: Tg/s
- long_name: stream_f_whisk_right
- var_id: 5
- units: Sv/decade
- long_name: top_box_75_perc
- var_id: 9
- long_name: top_outlier_point
- units: Sv/decade
- var_id: 6
- units: Sv/decade
- long_name: top_whisker_99_perc
Co-ordinate Variables
Temporal Range
1860-01-01T12:00:00
2014-12-31T12:00:00
Geographic Extent
26.5000° |
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-90.0000° |
50.0000° |
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26.5000° |