ACCESS-AM2 model output for 2017-2018 MARCUS and 2018-2019 CAMMPCAN RSV Aurora Australis voyages

<p>The dataset includes&nbsp;model output from the ACCESS-AM2 model&nbsp;corresponding to the MARCUS (Measurements of Aerosols, Radiation and Clouds over the Southern Oceans)&nbsp;2017-2018 voyages and the CAMMPCAN (Chemical and Mesoscale Mechanisms of Polar Cell Aerosol Nucleation) 2018-2019&nbsp;voyages. The MARCUS voyages&nbsp;included a limited number of CAMMPCAN instruments while the CAMMPCAN voyages included the full suite of instruments.&nbsp;</p> <p>The model version used was ACCESS-AM2 (Australian Community Climate and Earth-System Simulator - Atmospheric Model Version 2) run with&nbsp;CMIP6 AMIP configuration, nudged with&nbsp;ERA5 reanalysis and full chemistry switched on.&nbsp;The model was&nbsp;configured with a horizontal resolution of 1.25◦ latitude and 1.875◦ longitude and 85 vertical levels. ACCESS-AM2 uses the UK Met Office&rsquo;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&nbsp;<a href="https://doi.org/10.1071/ES19033">https://doi.org/10.1071/ES19033</a>.</p> <p>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.</p> <p>Files included in this upload include:</p> <ul> <li>aa1718_cg893_track.nc: aerosol, chemistry, and meteorology model&nbsp;data for the MARCUS voyages</li> <li>cg893_daily_mean_MARCUS_size_distributions.nc: calculated aerosol size distribution model data for the MARCUS voyages&nbsp;</li> <li>aa1819_cg893_track.nc: aerosol, chemistry, and meteorology model data&nbsp;for the CAMMPCAN voyages</li> <li>cg893_daily_mean_CC_size_distributions.nc: calculated aerosol size distribution model data for the CAMMPCAN voyages</li> </ul> <p>File names refer to Aurora Australis, voyage years (either 2017-2018 or 2018-2019), followed by the model run and data type.</p> <p>An overview of the variable field names, variable long names, height profile availability and units&nbsp;available in the dataset is provided in&nbsp;VariablesOverview.xlsx.&nbsp;</p> <p>A Jupyter Notebook is also included and contains scripts that can be used&nbsp;to&nbsp;create figures for preliminary analysis using the model data.</p> <p>Additional information:</p> <ul> <li>MARCUS details: <a href="https://asr.science.energy.gov/meetings/stm/presentations/2017/473.pdf">https://asr.science.energy.gov/meetings/stm/presentations/2017/473.pdf</a></li> <li>CAMMPCAN details: <a href="https://findanexpert.unimelb.edu.au/project/102792-cammpcan-%E2%80%93-chemical-and-mesoscale-mechanisms-of-polar-cell-aerosol-nucleation">https://findanexpert.unimelb.edu.au/project/102792-cammpcan-%E2%80%93-chemical-and-mesoscale-mechanisms-of-polar-cell-aerosol-nucleation</a></li> <li>MARCUS Observations: <a href="https://doi.org/10.26179/5e54ab5e5d56f">https://doi.org/10.26179/5e54ab5e5d56f</a></li> <li>CAMMPCAN Observations: <a href="https://doi.org/10.26179/5e546f452145d">https://doi.org/10.26179/5e546f452145d</a> &nbsp;</li> </ul> <p>The GitHub repository containing the code used to produce these datasets can be found here: <a href="https://github.com/llamprey/aurora_voyages">https://github.com/llamprey/aurora_voyages</a></p> <p>&nbsp;</p> <p>Versions:</p> <p>1.0.0: Initial Version.</p> <p>1.1.0: Fixed bug where CN and CCN fields were incorrectly calculated.</p> <p>1.2.0: Updated aerosol size distribution files</p>