| Summary: | The dataset includesmodel output from the ACCESS-AM2 modelcorresponding to the MARCUS (Measurements of Aerosols, Radiation and Clouds over the Southern Oceans)2017-2018 voyages and the CAMMPCAN (Chemical and Mesoscale Mechanisms of Polar Cell Aerosol Nucleation) 2018-2019voyages. The MARCUS voyagesincluded a limited number of CAMMPCAN instruments while the CAMMPCAN voyages included the full suite of instruments. The model version used was ACCESS-AM2 (Australian Community Climate and Earth-System Simulator - Atmospheric Model Version 2) run withCMIP6 AMIP configuration, nudged withERA5 reanalysis and full chemistry switched on.The model wasconfigured with a horizontal resolution of 1.25◦ latitude and 1.875◦ longitude and 85 vertical levels. ACCESS-AM2 uses the UK Met Office’s Unified Model Global Atmosphere (UM10.6 GA7.1) as the atmosphere module, the Community Atmosphere Biosphere Land Exchange model version 2.5 (CABLE2.5) as the land-surface module and the Global Model of Aerosol Processes (GLOMAP-mode) as the aerosol module. More information on the ACCESS-AM2 model can be found at https://doi.org/10.1071/ES19033 . The data is at daily means spanning 29-10-2017 to 26-03-2018 (149 days) for MARCUS, and 25-10-2018 to 24-03-2019 (151 days) for CAMMPCAN. Files included in this upload include: aa1718_cg893_track.nc: aerosol, chemistry, and meteorology modeldata for the MARCUS voyages aa1718_cg893_aerdist.nc: calculated aerosol size distribution model data for the MARCUS voyages aa1819_cg893_track.nc: aerosol, chemistry, and meteorology model datafor the CAMMPCAN voyages aa1819_cg893_aerdist.nc: calculated aerosol size distribution model data for the CAMMPCAN voyages File names refer to Aurora Australis, voyage years (either 2017-2018 or 2018-2019), followed by the model run and data type. An overview of the variable field names, variable long names, height profile availability and unitsavailable in the dataset is provided inVariablesOverview.xlsx. A Jupyter Notebook is also included and contains scripts that can be ...
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