The CCSM3 Deep Time Climate Simulation: Isabel1

I. Top Level Description This dataset archives a simulation with Community Climate System Model version 3 (CCSM3) known as Isabel1, because it refers to the discovery by Isabel Montañez and collaborators in 2016 that CO2 levels during the Late Paleozoic Ice Age could have dipped lower than during the Plio-Pleistocene glaciations and refers to the first iteration of the experimental protocol. In a publication currently under review by Sardar Abadi et al. (2018), it is referred to as icehouse.noglaciation.lowco2. The simulation was run on the yellowstone machine operated by the Computational Information Systems Laboratory (CISL) of the National Center for Atmospheric Research (NCAR) between 24 August 2017 and 14 October 2017. An in-depth description is provided in the README.TXT. References: Heavens, N.G., N.M. Mahowald, G.S. Soreghan, M.J. Soreghan, C.A. Shields, 2015, A model-based evaluation of tropical climate in Pangaea during the late Palaeozoic Icehouse, Palaeogeogr. Palaeoclimatol., Palaeoecol., 425, 109–127, doi:10.1016/j.palaeo.2015.02.024. Kaplan, J.O., et al., 2003. Climate change and Arctic ecosystems: 2. Modeling, paleodatamodel comparisons, and future projections. J. Geophys. Res. 108, 8171. doi:10.1029/2002JD002559. Montañez, I.P., J.C. McElwain, C.J. Poulsen, J.D. White, W.A. DiMichele, J.P. Wilson, G. Griggs, M.T. Hren, Climate, pCO2 and terrestrial carbon cycle linkages during late Palaeozoic glacial–interglacial cycles, 2016, Nature Geosci., 9, 824-828, doi:10.1038/ngeo2822. Rosenbloom, N., C. Shields, E. Brady, S. Levis, and S. Yeager, 2011, Using CCSM3 for Paleoclimate Applications, National Center for Atmospheric Research (Boulder, CO) Technical Note, NCAR/TN-483+STR. Sardar Abadi, M., G.S. Soreghan, N.G. Heavens, D.F.A.E. Veten, R.M. Ivanova, 2018, Warm-water carbonates in proximity to Gondwanan glaciations: A record from the Upper Paleozoic of Iran, Palaeogeogr. Palaeoclimatol., Palaeoecol., under review. Acknowledgments: This simulation made use of CISL-NCAR resources and was supported by the National Science Foundation under EAR-1337363.