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Dataset

 

Chapter 9 of the Working Group I Contribution to the IPCC Sixth Assessment Report - data for Figure 9.7 (v20220721)

Latest Data Update: 2022-08-25
Status: Ongoing
Online Status: ONLINE
Publication State: Citable
Publication Date: 2023-02-03
DOI Publication Date: 2023-05-15
Download Stats: last 12 months
Dataset Size: 18 Files | 8MB

Abstract

Data for Figure 9.7 from Chapter 9 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6).

Figure 9.7 shows meridional-depth profiles of zonal-mean potential temperature in the ocean and its rate of change in the upper 2000 m of the Global, Pacific, Atlantic and Indian oceans.

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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:
Fox-Kemper, B., H.T. Hewitt, C. Xiao, G. Aðalgeirsdóttir, S.S. Drijfhout, T.L. Edwards, N.R. Golledge, M. Hemer, R.E. Kopp, G. Krinner, A. Mix, D. Notz, S. Nowicki, I.S. Nurhati, L. Ruiz, J.-B. Sallée, A.B.A. Slangen, and Y. Yu, 2021: Ocean, Cryosphere and Sea Level Change. 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. 1211–1362, doi:10.1017/9781009157896.011.

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Figure subpanels
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The figure has 8 panels labelled (a)-(h), with data provided for all panels using this lettering system in the GitHub repository linked in the documentation.

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List of data provided
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This dataset contains:

- Observed temperatures from Argo climatology 2005–2014 (a, e, i, m)
- Bias of CMIP6 ensemble over same period 2005-2014 (b, f, j, n)
- Future changes under SSP1-2.6 (c, g, k, o) and SSP5-8.5 (d, h, l, p), 1995-2100.

No overlay indicates regions with high model agreement, where ≥80% of models agree on the sign of change. Diagonal lines indicate regions with low model agreement, where <80% of models agree on the sign of change (see Cross-Chapter Box Atlas.1 for more information).

Further details on data sources and processing are available in the chapter data table (Table 9.SM.9)

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Data provided in relation to figure
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Data provided in relation to Figure 9.7

- Data file: Fig9-7a_data.nc:
- Data file: Fig9-7b_data.nc:
- Data file: Fig9-7c_data.nc:
- Data file: Fig9-7d_data.nc:
- Data file: Fig9-7e_data.nc:
- Data file: Fig9-7f_data.nc:
- Data file: Fig9-7g_data.nc:
- Data file: Fig9-7h_data.nc:
- Data file: Fig9-7i_data.nc:
- Data file: Fig9-7j_data.nc:
- Data file: Fig9-7k_data.nc:
- Data file: Fig9-7l_data.nc:
- Data file: Fig9-7m_data.nc:
- Data file: Fig9-7n_data.nc:
- Data file: Fig9-7o_data.nc:
- Data file: Fig9-7p_data.nc:

CMIP6 is the sixth phase of the Coupled Model Intercomparison Project.
SSP stands for Shared Socioeconomic Pathway.
SSP585 is the Shared Socioeconomic Pathway which represents the upper boundary of radiative forcing and development scenarios, consistent with RCP8.5.
SSP126 is the Shared Socioeconomic Pathway which represents the lower boundary of radiative forcing and development scenarios, consistent with RCP2.6.

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Notes on reproducing the figure from the provided data
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Zonal transects were calculated and plotted using standard matplotlib software - code is available via the link in the documentation.

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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 figure on the IPCC AR6 website
- Link to the report component containing the figure (Chapter 9)
- Link to the Supplementary Material for Chapter 9, which contains details on the input data used in Table 9.SM.9
- Link to the data and code used to produce this figure and others in Chapter 9, archived on Zenodo.
- Link to the output data for this figure, contained in a dedicated GitHub repository.

Citable as:  Pearson, B. (2023): Chapter 9 of the Working Group I Contribution to the IPCC Sixth Assessment Report - data for Figure 9.7 (v20220721). NERC EDS Centre for Environmental Data Analysis, 15 May 2023. doi:10.5285/e2d7ec1924b04bebbb4044982e2be0ff. https://dx.doi.org/10.5285/e2d7ec1924b04bebbb4044982e2be0ff
Abbreviation: Not defined
Keywords: IPCC-DDC, IPCC, AR6, WG1, WGI, Sixth Assessment Report, Working Group 1, Physical Science Basis, ocean temperature, potential temperature, transect, zonal transects, global ocean, Indian Ocean, Pacific Ocean, Atlantic Ocean

Details

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: 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 curated on behalf of the IPCC Data Distribution Centre (IPCC-DDC).

Data Quality:
Data as provided by the IPCC
File Format:
NetCDF, txt

Process overview

This dataset was generated by the computation detailed below.
Title

Caption for Figure 9.7 from Chapter 9 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6)

Abstract

Meridional-depth profiles of zonal-mean potential temperature in the ocean and its rate of change in the upper 2000 m of the Global, Pacific, Atlantic and Indian oceans. Shown are (a, e, i, m) observed temperature (Argo climatology 2005–2014), (b, f, j, n) bias of the Coupled Model Intercomparison Project Phase 6 (CMIP6) ensemble over this period, and future changes under (c, g, k, o) SSP1-2.6 and (d, h, l, p) SSP5-8.5. No overlay indicates regions with high model agreement, where ≥80% of models agree on the sign of change. Diagonal lines indicate regions with low model agreement, where <80% of models agree on the sign of change (see Cross-Chapter Box Atlas.1 for more information). Further details on data sources and processing are available in the chapter data table (Table 9.SM.9).

Input Description

None

Output Description

None

Software Reference

None

  • var_id: Depth
  • var_id: Latitude
  • var_id: Mask
  • var_id: thetao
  • var_id: thetao_Bias
  • var_id: thetao_ChangeRate

Co-ordinate Variables

Coverage
Temporal Range
Start time:
1995-01-01T00:00:00
End time:
2100-12-31T23:59:59
Geographic Extent

 
90.0000°
 
-180.0000°
 
180.0000°
 
-90.0000°