Total Arctic sea ice extent during the Instrumental Era

<p>This dataset contains six different&nbsp;reconstructions of total Arctic sea ice extent during the Instrumental Era. These reconstructions were&nbsp;produced using data assimilation of climate model output and temperature observations. The prior ensembles were drawn from climate model output from both the Community Climate System Model version 4 (CCSM4, Last Millennium simulation Landrum et al., 2013) and Max Planck Institute for Meteorology (MPI-ESM-P, Last Millennium simulation Taylor et al., 2012). Temperature observations were drawn from three different products: 25 HadCRUT, Berkeley Earth (BE, Rohde et al., 2013), and NASA Goddard Institute for Space Studies 26 (GISTEMP, Hansen et al., 2010).&nbsp;These reconstructions are published in Brennan et al. (2020).&nbsp;</p> <p>Brennan, M. K., Hakim, G. J., &amp; Blanchard-Wrigglesworth, E. (2020). Arctic sea-ice variability during the instrumental era. Geophysical Research Letters, 47, e2019GL086843. https:// doi.org/10.1029/2019GL086843</p>