Stepanek, Christian; Lohmann, Gerrit (2012): Results of calculated surface air temperature anomaly of COSMOS Pliocene experiment 2 in NetCDF format [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.832476,

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Supplement to: Stepanek, C; Lohmann, G (2012): Modelling mid-Pliocene climate with COSMOS. Geoscientific Model Development, 5(5), 1221-1243, https://doi.org/10.5194/gmd-5-1221-2012

In this manuscript we describe the experimental procedure employed at the Alfred Wegener Institute in Germany in the preparation of the simulations for the Pliocene Model Intercomparison Project (PlioMIP). We present a description of the utilized Community Earth System Models (COSMOS, version: COSMOS-landveg r2413, 2009) and document the procedures that we applied to transfer the Pliocene Research, Interpretation and Synoptic Mapping (PRISM) Project mid-Pliocene reconstruction into model forcing fields. The model setup and spin-up procedure are described for both the paleo- and preindustrial (PI) time slices of PlioMIP experiments 1 and 2, and general results that depict the performance of our model setup for mid-Pliocene conditions are presented. The mid-Pliocene, as simulated with our COSMOS setup and PRISM boundary conditions, is both warmer and wetter in the global mean than the PI. The globally averaged annual mean surface air temperature in the mid-Pliocene standalone atmosphere (fully coupled atmosphere-ocean) simulation is 17.35 °C (17.82 °C), which implies a warming of 2.23 °C (3.40 °C) relative to the respective PI control simulation.

This data submission provides the surface air temperature anomaly of Pliocene experiment 2 of the Alfred Wegener Institute's contribution to PlioMIP. It contains long term (30 y) monthly averages of modelled surface air temperature over land and ocean. This data set has been used in Salzmann et al. (2013).