Dataset
Chapter 11 of the Working Group I Contribution to the IPCC Sixth Assessment Report - data for Figure 11.19 (v20230203)
Abstract
Data for Figure 11.19 from Chapter 11 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6).
Figure 11.19 shows projected changes in the number of consecutive dry days (CDD), annual mean soil moisture over the total column, and the frequency and intensity of one-in-ten year soil moisture (SM) drought for the June-to-August and December-to-February seasons at 1.5°C, 2°C, and 4°C of global warming compared to the 1851-1900 baseline.
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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:
Seneviratne, S.I., X. Zhang, M. Adnan, W. Badi, C. Dereczynski, A. Di Luca, S. Ghosh, I. Iskandar, J. Kossin, S. Lewis, F. Otto, I. Pinto, M. Satoh, S.M. Vicente-Serrano, M. Wehner, and B. Zhou, 2021: Weather and Climate Extreme Events in a Changing Climate. 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. 1513–1766, doi:10.1017/9781009157896.013.
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Figure subpanels
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The figure has twelve panels, with data provided for all panels.
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List of data provided
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This dataset contains:
- Annual consecutive dry days change (days) (relative to 1850-1900)
- Annual total column soil moisture (std) (relative to 1850-1900)
- July-to-August frequency of 1-in-10 year soil moisture drought change (-) (relative to 1850-1900)
- December-to-February frequency of 1-in-10 year soil moisture drought change (-) (relative to 1850-1900)
The data is given for global warming levels (GWLs), namely +1.5°C, 2.0°C, and +4.0°C.
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Data provided in relation to figure
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Panel a:
- Figure_11_19a_cmip6_CDD_change_at_1_5C.nc: simulated consecutive dry days change (days) at 1.5°C global warming relative to 1850-1900
Panel b:
- Figure_11_19b_cmip6_CDD_change_at_2_0C.nc: simulated consecutive dry days change (days) at 2.0°C global warming relative to 1850-1900
Panel c:
- Figure_11_19c_cmip6_CDD_change_at_4_0C.nc: simulated consecutive dry days change (days) at 4.0°C global warming relative to 1850-1900
Panel d:
- Figure 11_19d_cmip6_SM_total_change_at_1_5C.nc: simulated total column soil moisture change (std) at 1.5°C global warming relative to 1850-1900
Panel e:
- Figure 11_19e_cmip6_SM_total_change_at_2_0C.nc: simulated total column soil moisture change (std) at 2.0°C global warming relative to 1850-1900
Panel f:
- Figure 11_19f_cmip6_SM_total_change_at_4_0C.nc: simulated total column soil moisture change (std) at 4.0°C global warming relative to 1850-1900
Panel g:
- Figure_11_19g_JJA_cmip6_SM_drought_index_change_at_1_5C.nc: simulated July-to-August frequency of 1-in-10 year soil moisture drought change (-) at 1.5°C global warming relative to 1850-1900
Panel h:
- Figure_11_19h_JJA_cmip6_SM_drought_index_change_at_2_0C.nc: simulated July-to-August frequency of 1-in-10 year soil moisture drought change (-) at 2.0°C global warming relative to 1850-1900
Panel i:
- Figure_11_19i_JJA_cmip6_SM_drought_index_change_at_4_0C.nc: simulated July-to-August frequency of 1-in-10 year soil moisture drought (-) at 4.0°C global warming relative to 1850-1900
Panel j:
- Figure_11_19j_cmip6_DJF_SM_drought_index_change_at_1_5C.nc: simulated December-to-February frequency of 1-in-10 year soil moisture drought change (-) at 1.5°C global warming relative to 1850-1900
Panel k:
- Figure_11_19k_cmip6_DJF_SM_drought_index_change_at_2_0C.nc: simulated December-to-February frequency of 1-in-10 year soil moisture drought change (-) at 2.0°C global warming relative to 1850-1900
Panel l:
- Figure_11_19l_cmip6_DJF_SM_drought_index_change_at_4_0C.nc: simulated December-to-February frequency of 1-in-10 year soil moisture drought change (-) at 4.0°C global warming relative to 1850-1900
CMIP6 is the sixth phase of the Coupled Model Intercomparison Project.
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Notes on reproducing the figure
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For panels g to l the data should be plotted with a logarithmic colormap. Note that grid cells with no change (0) have been replaced by 10^-5 such that the logarithm is defined.
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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 11)
- Link to the Supplementary Material for Chapter 11, which contains details on the input data used in Table 11.SM.9
- Link to the Ch11 GitHub repository containing scripts for generating figures
- Link to the code for the figure, archived on Zenodo.
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 11.19 from Chapter 11 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6) |
| Abstract | Projected changes in (a–c) the number of consecutive dry days (CDD), (d–f) annual mean soil moisture over the total column, and (g–l) the frequency and intensity of 1-in-10-year soil moisture drought for the June-to-August and December-to-February seasons at 1.5°C, 2°C, and 4°C of global warming compared to the 1850–1900 baseline. The unit for soil moisture change is the standard deviation of interannual variability in soil moisture during 1850–1900. Standard deviation is a widely used metric in characterizing drought severity. A projected reduction in mean soil moisture by one standard deviation corresponds to soil moisture conditions typical of about 1-in-6-year droughts during 1850–1900 becoming the norm in the future. Results are based on simulations from the Coupled Model Intercomparison Project Phase 6 (CMIP6) multi-model ensemble under the Shared Socio-economic Pathway (SSP), SSP1-1.9, SSP1-2.6, SSP2-4.5, SSP3-7.0, and SSP5-8.5 scenarios. The numbers in the top right indicate the number of simulations included. Uncertainty is represented using the simple approach: 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. For more information on the simple approach, please refer to the Cross-Chapter Box Atlas 1. For details on the methods see Supplementary Material 11.SM.2. Changes in CDDs are also displayed in the Interactive Atlas. Further details on data sources and processing are available in the chapter data table (Table 11.SM.9). |
| Input Description | None |
| Output Description | None |
| Software Reference | None |
- units: days
- var_id: CDD
- long_name: Consecutive dry days
- long_name: Total Soil Moisture Content
- var_id: SM_total
- units: std
- var_id: SM_drought_index
- long_name: Total Soil Moisture Drought
- units: - (times as frequent)
- var_id: consistent_change
- var_id: season
Co-ordinate Variables
- units: degrees_north
- standard_name: latitude
- long_name: latitude
- var_id: lat
- units: degrees_east
- standard_name: longitude
- long_name: longitude
- var_id: lon
Temporal Range
1850-01-01T12:00:00
2100-12-31T12:00:00
Geographic Extent
90.0000° |
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-180.0000° |
180.0000° |
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-90.0000° |