DOI: 10.5285/567ca2ab6d6043479a1eaec678bfe91a
title: Chapter 10 of the Working Group I Contribution to the IPCC Sixth Assessment Report - data for Figure 10.18 (v20220622)

description: Data for Figure 10.18 from Chapter 10 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6). Figure 10.18 shows historical and projected rainfall and Southern Annular Mode (SAM) over the Cape Town region. --------------------------------------------------- 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: Doblas-Reyes, F.J., A.A. Sörensson, M. Almazroui, A. Dosio, W.J. Gutowski, R. Haarsma, R. Hamdi, B. Hewitson, W.-T. Kwon, B.L. Lamptey, D. Maraun, T.S. Stephenson, I. Takayabu, L. Terray, A. Turner, and Z. Zuo, 2021: Linking Global to Regional Climate 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. 1363–1512, doi:10.1017/9781009157896.012. --------------------------------------------------- Figure subpanels --------------------------------------------------- The figure has 4 subpanels. Data for all subpanels is provided. --------------------------------------------------- List of data provided --------------------------------------------------- The data is for the Cape Town region: - Observed yearly accumulation of rainfall, 1933-2014 mean, 2015, 2016, 2017 - Observed annual precipitation cycle, 1933-2014 mean, 2015-2017 mean, 2015, 2016, 2017 - Rainfall anomalies 1930-2100 with respect to 1980–2010 means - SAM index (calculated from sea-level pressure) 1930-2100 - Precipitation trends 1933-2017, 1979-2017 and 2018-2100 - SAM index trends 1933-2017, 1979-2017 and 2018-2100 --------------------------------------------------- Data provided in relation to figure --------------------------------------------------- Panel (a): Station data of yearly accumulation of rainfall over the Cape Town region, 1933-2014 (grey lines), 2015 (orange line), 2016 (red line), 2017 (purple line): - Data file: Fig_10_18_panel-a.csv Panel (b): Station data of annual precipitation cycle over the Cape Town region, 1933-2014 mean (black line), 2015-2017 mean (grey line), 2015 (orange bars), 2016 (red bars), 2017 (purple bars): - Data file: Fig_10_18_panel-b.csv Panel (c): SAM index (top part) and rainfall (bottom part) anomalies over the Cape Town region between 1930 and 2100 of observed and reanalysis data (SAM: station based (black line), NCEP/NCAR (light blue line), ERA20C (dark red line) and 20CR (yellow line); rainfall: station based (black line), GPCC (green line) and CRU TS (olive line)) and model data (SAM and rainfall: CMIP5 (blue shading), CMIP6 (red shading), MIROC6 (orange shading); Rainfall: CORDEX (cyan shading), 6 CCAM (purple shading)): - Data files: Fig_10_18_panel-c_timeseries_precipitation.csv, Fig_10_18_panel-c_timeseries_SAM_index.csv Panel (d): SAM index (top part) and rainfall (bottom part) Theil-Sen trends between 1933-2017, 1979-2017 and 2018-2100 over the Cape Town region (31°S‒35°S, 18°W‒20.5°W) of observed and reanalysis data (SAM: station based (black), NCEP/NCAR (light blue), ERA20C (dark red) and 20CR (yellow); rainfall: station based (black), GPCC (green) and CRU TS (olive)) and model data (CMIP5 (blue), CMIP6 (red), MIROC6 (orange)): - Data files: Fig_10_18_panel-d_trends_precipitation_1933-2017.csv, Fig_10_18_panel-d_trends_precipitation_2018-2100.csv, Fig_10_18_panel-d_trends_SAM_index_1979-2017.csv, Fig_10_18_panel-d_trends_precipitation_1979-2017.csv, Fig_10_18_panel-d_trends_SAM_index_1933-2017.csv, Fig_10_18_panel-d_trends_SAM_index_2018-2100.csv Acronyms: CMIP - Coupled Model Intercomparison Project, NCEP - National Centers for Environmental Prediction, NCAR - National Center for Atmospheric Research, CRU TS - Climatic Research Unit (CRU) Time-series (TS), CORDEX - Coordinated Regional Climate Downscaling Experiment, CCAM - Conformal Cubic Atmospheric Model, MIROC6 - Model for Interdisciplinary Research on Climate, GPCC- Global Precipitation Climatology Centre, OLS - ordinary least squares regression. --------------------------------------------------- Notes on reproducing the figure from the provided data --------------------------------------------------- The code for ESMValTool is provided. --------------------------------------------------- Sources of additional information --------------------------------------------------- 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 10) - Link to the Supplementary Material for Chapter 10, which contains details on the input data used in Table 10.SM.11 - Link to the code for the figure, archived on Zenodo.