{"ob_id":40887,"uuid":"1516421bd92a4a2fa5061d3a98cf75c9","title":"HadCM3 Climate Simulation - Anthropogenic Forcing ensemble (Historical / SRESB2)","abstract":"The model simulation contained in this dataset is the all-anthropogenic forcings ensemble with greenhouse gas forcing (multiple species of greenhouse gases including various minor species specified to give SRESB2-like forcing variations); sulphate aerosol direct and indirect forcing (via calibrated delta-albedo); sulfur chemistry without natural DMS and 3D SO2 background emissions, (ie. anthropogenic SO2 emissions surface and high level only); and tropospheric/stratospheric ozone.\r\n \r\n This experiment produced model outputs reflecting the IPCC Special Report Emission Scenario B2 (SRES-B2). The HadCM3 model was used by the Hadley Centre to provide input for the IPCC Third Assessment Report.\r\n \r\n Data members run for this experiment: ['aaxzx', 'aaxzl', 'aaxzz', 'abiaa', 'abqza', 'abqzd', 'abiab', 'abqzb', 'abqze', 'abiac', 'abqzc', 'abqzf']\r\n\r\n Boundary conditions: All anthropogenic forcing from multiple species of greenhouse gases as defined for the IPCC SRESB2 emissions scenario; sulfur (direct and indirect forcing, sulphur chemistry without natural DMS and SO2 background emissions (i.e. anthropogenic SO2 emissions from surface and high level only) and tropospheric/stratospheric ozone.\r\nReferences: \r\nJohns, T.C., J.M. Gregory, W.J. Ingram, C.E. Johnson, A. Jones, J.A. Lowe, J.F.B. Mitchell, D.L. Roberts, D.M.H Sexton, D.S Stevenson, S.F.B. Tett, M.J. Woodage (2003) Anthropogenic climate change for 1860 to 2100 simulated with the HadCM3 model under updated emissions scenarios. Climate Dynamics, 20, 583-612.\r\n\r\n Initial conditions: Initialisation for the ensemble was achieved using dump files from previous model runs as follows:\r\n ELEMENT 1: [ run aaxzl - initialised from year 370 of the HadCM3 control run. (i.e. 2361); run aaxzx - initialised from run aaxzl 1849-12-01 ; run aaxzz - initialised from aaxzx 1969-12-01;]\r\n ELEMENT 2: [run abiaa - initialised from run aaxzk 1959-12-01; run abqza - initialised from run abiaa 1959-12-01 ; run abqzd - initialised from run abqza 1974-12-01 ]\r\n ELEMENT 3: [run abiab - initialised from run aaxzk 2059-12-01; run abqzb - initialised from run abiab 1959-12-01 ; run abqze - initialise from run abqzb 1974-12-01 ]\r\n ELEMENT 4: [run abiac - initialised from run aaxzk 2159-12-01; run abqzc - initialised from run abiac 1959-12-01 ; run abqzf - initialised from run abqzc 1974-12-01]\r\n\r\n More detailed metadata on the model configuration and parameters is available in XML format.","keywords":"HadCM3-AFHB2, HadCM3, Historical, 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