BCC-ESM1 Model Datasets for the CMIP6 Aerosol Chemistry Model Intercomparison Project (AerChemMIP)

Abstract BCC-ESM1 is the first version of Beijing Climate Center’s Earth System Model, and participating in phase 6 Coupled Model Intercomparison Project (CMIP6). The Aerosol Chemistry (AerChemMIP) only CMIP6-endorsed MIP which involved. All AerChemMIP experiments priority 1 seven priorities 2 3 have been conducted. DECK (Diagnostic, Evaluation Characterization Klima) CMIP historical simulations also run as entry card CMIP6. outputs from widely used recent atmospheric chemistry studies. To facilitate use datasets, this study describes experiment settings summarizes model detail. Preliminary evaluations are presented, revealing that: climate sensitivities well within likely ranges suggested by IPCC AR5; spatial structures annual mean surface air temperature precipitation can be reasonably captured, despite some common biases CMIP5 CMIP6 models; a spurious cooling bias 1960s to 1990s evident BCC-ESM1, most other ESMs; states sulfate concentrations reproduced, their temporal evolution at regional scales. These datasets archived on Grid Federation (ESGF) node for