The dataset contains monthly output of a COSMO-CLM² (COSMO-CLM coupled to the Community Land Model) atmospheric hindcast simulation over Antarctica which is described and evaluated in the following paper: Souverijns, N., Gossart, A., Demuzere, M., Lenaerts, J.T.M., Medley, B., Gorodetskaya, I.V., Vanden Broucke, S., van Lipzig, N.P.M., 2019. A new Regional Climate Model for POLAR-CORDEX: Evaluation of a 30-year Hindcast with COSMO-CLM² over Antarctica. Journal of Geophysical Research: Atmospheres, 124, 1405-1427. (doi:10.1029/2018JD028862) Details of the model simulation: - COSMO-CLM version 5.0_clm6 - Community Land Model version 4.5 - Horizontal resolution: 0.25°x0.25° - Vertical resolution: 40 levels - Time period: 1987-2016 (excluding 4 years of spin-up) - Driving model: ERA-Interim The data provided here has a monthly time resolution and contains the monthly average of all variables except denoted otherwise below. As such, each file consists of 360 time steps. - AEVAP_S: Surface evaporation [kg m-2] (summed value for each month) - ALB: Surface albedo [-] (only for austral summer months) - ALHFL_S: Surface latent heat flux [W m-2] - ALWD_S: Downward longwave radiation at the surface [W m-2] - ALWU_S: Upward longwave radiation at the surface [W m-2] - ASHFL_S: Surface sensible heat flux [W m-2] - ASOB_S: Surface net downward shortwave radiation [W m-2] - ASWDIFD_S: Diffuse downward shortwave radiation at the surface [W m-2] - ASWDIFU_S: Diffuse upward shortwave radiation at the surface [W m-2] - ASWDIR_S: Direct downward shortwave radiation at the surface [W m-2] - ATHB_S: Surface net downward longwave radiation at the surface [W m-2] - P: Pressure at 40 vertical levels [Pa] - QV: Specific humidity at 40 vertical levels [kg kg-1] - RH2M: Relative humidity at 2 meter [%] - SNOW_GSP: Surface snowfall amount [kg m-2] (summed value for each month) - T2M: Temperature at 2 meter [K] - T: Temperature at 40 vertical levels [K] - WS10M: Wind speed at 10 meter [m s-1] - WS: Wind speed at 40 vertical levels [m s-1]