An ensemble of simulations made using the Unified Model version 6.6 (HadGEM2) in AMIP (atmosphere only) configuration for the SAPRISE (South Asian PRecIpitation: A SEamless assessment) project. The simulations are used to investigate the impacts of aerosols on the South Asian Monsoon. The four-member ensemble of simulations are forced with anthropogenic-only aerosols i.e. sulphur dioxide, black carbon and biomass burning aerosols. The simulations cover the period from 1850-2000. Since aerosol-only simulation is not compulsory in CMIP5, these four runs are complements to other CMIP5 simulations conducted by Met Office using the HadGEM2-ES (vn 6.6).

Data for Figure 3.17 from Chapter 3 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6). Figure 3.17 shows observed and simulated global monsoon domain, intensity, and circulation.  --------------------------------------------------- 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: 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. --------------------------------------------------- Figure subpanels --------------------------------------------------- The figure has four panels, with data provided for all panels in a single file.   --------------------------------------------------- List of data provided --------------------------------------------------- This dataset contains - Observed and simulated global monsoon domain and summer minus winter precipitation and 850hPa wind velocity - Global land monsoon precipitation index and Northern Hemisphere summer monsoon circulation index. --------------------------------------------------- Data provided in relation to figure --------------------------------------------------- All data are given in global_monsoon.nc file. Panel a: - uRef & vRef: vector - prRef: shading - domainRef: domain (1 = monsoon, 0 = not monsoon) Panel b: - uMME & vMME: vector - prMME: shading - domainMME: monsoon domain (1 = monsoon, 0 = not monsoon) Panel c: - Multimodel ensemble mean and 5th-95th percentiles of GMprecip_cmip6: red curve and shading - Multimodel ensemble mean and 5th-95th percentiles of GMprecip_cmip5: blue curve and shading - Multimodel ensemble mean and 5th-95th percentiles of GMprecip_amip: yellow curve and shading - GMprecip_CMAP: black dotted curve - GMprecip_CRU-TS: black solid curve - GMprecip_GPCC: black dashed-dotted curve - GMprecip_GPCP-SG: black dashed curve Panel d: - Multimodel ensemble mean and 5th-95th percentiles of NHMcirc_cmip6: red curve and shading - Multimodel ensemble mean and 5th-95th percentiles of NHMcirc_cmip5: blue curve and shading - Multimodel ensemble mean and 5th-95th percentiles of NHMcirc_amip: yellow curve and shading - Max-min range of NHMcirc_20CRv3: grey hatching - NHMcirc_ERA-20C: black dash-dotted curve - NHMcirc_ERA5: black solid curve - NHMcirc_JRA-55: dashed curve - NHMcirc_MERRA2: dotted curve --------------------------------------------------- Notes on reproducing the figure from the provided data --------------------------------------------------- Multimodel ensemble means and percentiles are calculated after weighting individual members with the inverse of the ensemble size of the same model, which is given as the weight attribute of each variable. --------------------------------------------------- Sources of additional information --------------------------------------------------- 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.

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.   --------------------------------------------------- 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: 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. --------------------------------------------------- Figure subpanels --------------------------------------------------- The figure has 3 panels, and all the data are provided in a single file named NAM_SAM_detection_attribution.nc. --------------------------------------------------- List of data provided --------------------------------------------------- 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 --------------------------------------------------- Data provided in relation to figure --------------------------------------------------- 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 --------------------------------------------------- Notes on reproducing the figure from the provided data --------------------------------------------------- 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. --------------------------------------------------- Sources of additional information --------------------------------------------------- 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

Data for Figure 3.16 from Chapter 3 of the Working Group I (WGI) Contribution to the Intergovernmental Panel on Climate Change (IPCC) Sixth Assessment Report (AR6). Figure 3.16 shows observed and simulated changes in Hadley cell extent and Walker circulation strength. --------------------------------------------------- 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: 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. --------------------------------------------------- Figure subpanels --------------------------------------------------- The figure has six panels, with data provided for all panels in subdirectories named panel_a, panel_b, panel_c, panel_d, panel_e and panel_f. --------------------------------------------------- List of data provided --------------------------------------------------- This dataset contains: - Modelled and observed trends of the Northern Hemisphere annual-mean subtropical edge latitude of the Hadley cell for 1980-2014 - Modelled and observed trends of the Southern Hemisphere annual-mean subtropical edge latitude of the Hadley cell for 1980-2014 - Modelled and observed trends of the Southern Hemisphere December-January-February subtropical edge latitude of the Hadley cell for 1981-2000 - Modelled and observed trends of the annual-mean Walker circulation strength for 1901-2010 - Modelled and observed trends of the annual-mean Walker circulation strength for 1951-2010 - Modelled and observed trends of the annual-mean Walker circulation strength for 1980-2014 --------------------------------------------------- Data provided in relation to figure --------------------------------------------------- Panel a: - lat in panel_a/NHedge_ANN_1980-2014_ERA-Interim.nc; black dotted line - lat in panel_a/NHedge_ANN_1980-2014_ERA5.nc; black solid line - lat in panel_a/NHedge_ANN_1980-2014_JRA-55.nc; black dash-dotted line - lat in panel_a/NHedge_ANN_1980-2014_MERRA2.nc; black dashed line - lat in panel_a/NHedge_ANN_1980-2014_cmip5hist.nc; multimodel ensemble mean and percentiles for red open box-whisker - lat in panel_a/NHedge_ANN_1980-2014_cmip6GHG.nc; multimodel ensemble mean and confidence interval for brown filled box, with ensemble means of individual models for black dots - lat in panel_a/NHedge_ANN_1980-2014_cmip6aer.nc; multimodel ensemble mean and confidence interval for light blue filled box, with ensemble means of individual models for black dots - lat in panel_a/NHedge_ANN_1980-2014_cmip6amip.nc; multimodel ensemble mean and percentiles for orange open box-whisker - lat in panel_a/NHedge_ANN_1980-2014_cmip6hist.nc; multimodel ensemble mean and percentiles for red open box-whisker, and multimodel ensemble mean and confidence interval for red filled box, with ensemble means of individual models for black dots - lat in panel_a/NHedge_ANN_1980-2014_cmip6nat.nc; multimodel ensemble mean and confidence interval for green filled box, with ensemble means of individual models for black dots - lat in panel_a/NHedge_ANN_1980-2014_cmip6stratO3.nc; multimodel ensemble mean and confidence interval for purple filled box, with ensemble means of individual models for black dots - lat in panel_a/NHedge_ANN_35yrs_cmip6pi.nc; multimodel ensemble mean and percentiles for blue open box-whisker Panel b: As Panel a, but with - lat in panel_b/SHedge_ANN_1980-2014_ERA-Interim.nc - lat in panel_b/SHedge_ANN_1980-2014_ERA5.nc - lat in panel_b/SHedge_ANN_1980-2014_JRA-55.nc - lat in panel_b/SHedge_ANN_1980-2014_MERRA2.nc - lat in panel_b/SHedge_ANN_1980-2014_cmip5hist.nc - lat in panel_b/SHedge_ANN_1980-2014_cmip6GHG.nc - lat in panel_b/SHedge_ANN_1980-2014_cmip6aer.nc - lat in panel_b/SHedge_ANN_1980-2014_cmip6amip.nc - lat in panel_b/SHedge_ANN_1980-2014_cmip6hist.nc - lat in panel_b/SHedge_ANN_1980-2014_cmip6nat.nc - lat in panel_b/SHedge_ANN_1980-2014_cmip6stratO3.nc - lat in panel_b/SHedge_ANN_35yrs_cmip6pi.nc Panel c: As Panel a, but with - lat in panel_c/SHedge_DJF_1981-2000_ERA-Interim.nc; ERA-Interim - lat in panel_c/SHedge_DJF_1981-2000_ERA5.nc; ERA5 - lat in panel_c/SHedge_DJF_1981-2000_JRA-55.nc; JRA-55 - lat in panel_c/SHedge_DJF_1981-2000_MERRA2.ncl MERRA2 - lat in panel_c/SHedge_DJF_1981-2000_cmip5hist.nc; CMIP5 historical-RCP4.5 - lat in panel_c/SHedge_DJF_1981-2000_cmip6GHG.nc; CMIP6 hist-GHG - lat in panel_c/SHedge_DJF_1981-2000_cmip6aer.nc; CMIP6 hist-aer - lat in panel_c/SHedge_DJF_1981-2000_cmip6amip.nc; CMIP6 AMIP - lat in panel_c/SHedge_DJF_1981-2000_cmip6hist.nc; CMIP6 historical - lat in panel_c/SHedge_DJF_1981-2000_cmip6nat.nc; CMIP6 hist-nat - lat in panel_c/SHedge_DJF_1981-2000_cmip6stratO3.nc; CMIP6 hist-stratO3 - lat in panel_c/SHedge_DJF_20yrs_cmip6pi.nc; CMIP6 piControl Panel d: - dslp in panel_d/WalkerStrength_ANN_1901-2010_20CRv3.nc; max-min range for grey diagonal hatching - dslp in panel_d/WalkerStrength_ANN_1901-2010_CERA-20C.nc; max-min range for grey vertical hatching - dslp in panel_d/WalkerStrength_ANN_1901-2010_ERA-20C.nc; grey dashed line - dslp in panel_d/WalkerStrength_ANN_1901-2010_HadSLP2.nc; grey solid line - dslp in panel_d/WalkerStrength_ANN_1901-2010_cmip5hist.nc; multimodel ensemble mean and percentiles for red open box-whisker - dslp in panel_d/WalkerStrength_ANN_1901-2010_cmip6GHG.nc; multimodel ensemble mean and confidence interval for brown filled box, with ensemble means of individual models for black dots - dslp in panel_d/WalkerStrength_ANN_1901-2010_cmip6aer.nc; multimodel ensemble mean and confidence interval for light blue filled box, with ensemble means of individual models for black dots - dslp in panel_d/WalkerStrength_ANN_1901-2010_cmip6amip-hist.nc; multimodel ensemble mean and percentiles for orange open box-whisker - dslp in panel_d/WalkerStrength_ANN_1901-2010_cmip6hist.nc; multimodel ensemble mean and percentiles for red open box-whisker, and multimodel ensemble mean and confidence interval for red filled box, with ensemble means of individual models for black dots - dslp in panel_d/WalkerStrength_ANN_1901-2010_cmip6nat.nc; multimodel ensemble mean and confidence interval for green filled box, with ensemble means of individual models for black dots - dslp in panel_d/WalkerStrength_ANN_1901-2010_cmip6stratO3.nc; multimodel ensemble mean and confidence interval for purple filled box, with ensemble means of individual models for black dots - dslp in panel_d/WalkerStrength_ANN_110yrs_cmip6pi.nc; multimodel ensemble mean and percentiles for blue open box-whisker Panel e: As Panel d, but with - dslp in panel_e/WalkerStrength_ANN_1951-2010_20CRv3.nc - dslp in panel_e/WalkerStrength_ANN_1951-2010_CERA-20C.nc - dslp in panel_e/WalkerStrength_ANN_1951-2010_ERA-20C.nc - dslp in panel_e/WalkerStrength_ANN_1951-2010_HadSLP2.nc - dslp in panel_e/WalkerStrength_ANN_1951-2010_cmip5hist.nc - dslp in panel_e/WalkerStrength_ANN_1951-2010_cmip6GHG.nc - dslp in panel_e/WalkerStrength_ANN_1951-2010_cmip6aer.nc - dslp in panel_e/WalkerStrength_ANN_1951-2010_cmip6amip-hist.nc - dslp in panel_e/WalkerStrength_ANN_1951-2010_cmip6hist.nc - dslp in panel_e/WalkerStrength_ANN_1951-2010_cmip6nat.nc - dslp in panel_e/WalkerStrength_ANN_1951-2010_cmip6stratO3.nc - dslp in panel_e/WalkerStrength_ANN_60yrs_cmip6pi.nc Panel f: As Panel d, but with - dslp in panel_f/WalkerStrength_ANN_1980-2014_20CRv3.nc - dslp in panel_f/WalkerStrength_ANN_1980-2014_ERA-Interim.nc; black dotted line - dslp in panel_f/WalkerStrength_ANN_1980-2014_ERA5.nc; black solid line - dslp in panel_f/WalkerStrength_ANN_1980-2014_JRA-55.nc; black dashed-dotted line - dslp in panel_f/WalkerStrength_ANN_1980-2014_MERRA2.nc; black dashed line - dslp in panel_f/WalkerStrength_ANN_1980-2014_cmip5hist.nc - dslp in panel_f/WalkerStrength_ANN_1980-2014_cmip6GHG.nc - dslp in panel_f/WalkerStrength_ANN_1980-2014_cmip6aer.nc - dslp in panel_f/WalkerStrength_ANN_1980-2014_cmip6amip-hist.nc - dslp in panel_f/WalkerStrength_ANN_1980-2014_cmip6hist.nc - dslp in panel_f/WalkerStrength_ANN_1980-2014_cmip6nat.nc - dslp in panel_f/WalkerStrength_ANN_1980-2014_cmip6stratO3.nc - dslp in panel_f/WalkerStrength_ANN_35yrs_cmip6pi.nc Acroynms: Ann - Annual GHG - Greenhouse gas, aer - aerosol, CMIP - Coupled Model Intercomparison Project, 20CRv3 - NOAA-CIRES-DOE Twentieth Century Reanalysis (V3), CERA-20C - Coupled climate reanalyses of the 20th century, HadSLP2 - Hadley Centre Sea Level Pressure dataset (HadSLP2), AMIP - Atmospheric Model Intercomparison Project (AMIP), JRA - The Japanese 55-year Reanalysis (JRA-55), MERRA-2 - Global Modeling and Assimilation Office - NASA. --------------------------------------------------- Notes on reproducing the figure from the provided data --------------------------------------------------- Ensemble mean, interquartile ranges and 5th and 95th percentiles are calculated after weighting individual members with the inverse of the ensemble size of the same model, i.e. the inverse of the numbers given as the esize attribute in each variable. Suppose X(i) is the array of lat, and w(i) is the corresponding weight. - Mean should be suｍ_i(X(i) * w(i)) / sum_i(w(i)) - For percentile values, 1. Sort X and w so that X is in the ascending order 2. Accumulate w until i = j so that accumulated(w)/sum_i(w(i)) equals or exceeds the specified percentile level (e.g. 0.05) 3. Use X(j) or (X(j) + X(j - 1))/2 as the percentile value - Finally, multiply by 10 all numbers for unit conversion. Filled boxes and black dots are evaluated based on the models with minimum 3 ensemble members. Model ID of each ensemble member is given as the model_id attribute in each variable. 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. --------------------------------------------------- Sources of additional information --------------------------------------------------- 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