20th century winds, pressure, and temperature around Antarctica from single-proxy data assimilation

<p>Please cite <a href="https://doi.org/10.5194/tc-2023-16">O&#39;Connor et al., 2023</a> (preprint available in The Cryosphere Discussions) when using these single-proxy reconstruction datasets. The reconstructions generated using all proxy data (O&#39;Connor et al., 2021) are archived <a href="https://zenodo.org/record/5507607">here</a>.</p> <p>This dataset contains four sets of single-proxy reconstructions of annually resolved zonal surface wind (us), sea level pressure (psl), and surface temperature (tas) anomalies around Antarctica over the period 1900 to 2005 CE.&nbsp;The reconstructions were generated using the Last Millennium Reanalysis data assimilation framework (<a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1002/2016JD024751">Hakim et al., 2016</a>), adapted for Antarctic atmospheric reconstructions following the methods from&nbsp;<a href="https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2021GL095999">O&#39;Connor et al., 2021</a>.&nbsp;The reconstructions were generated using the same proxy databases and methods as outlined in O&#39;Connor et al., 2021, but we only assimilate proxies from ice cores or coral records in each reconstruction.</p> <p>This dataset contains four sets of reconstructions, based on two different climate model simulation priors and either ice cores or coral assimilated:</p> <ol> <li>CESM LM prior, ice cores only</li> <li>CESM LM prior, corals only</li> <li>PACE prior, ice cores only</li> <li>PACE prior, corals only</li> </ol> <p>The CESM LM prior is drawn from the iCESM Last Millennium Ensemble (<a href="https://doi.org/10.1029/2019PA003625">Stevenson et al., 2019</a>) and includes only natural forcings. The PACE prior is drawn from the CESM1 Pacific Pacemaker Ensemble (&ldquo;PACE&rdquo;; <a href="https://doi.org/10.1175/JCLI-D-16-0844.1">Deser et al., 2017</a>) and includes historical anthropogenic&nbsp;forcings. For each reconstruction, there are three&nbsp;netCDF files containing the ensemble mean (mean of 100 ensemble members) for each climate field.&nbsp;The anomaly reference period is&nbsp;1961-1990.</p>