Observation-based dataset HYRAS-DE v5.0 by Deutscher Wetterdienst (subset) interpolated to a rotated curvilinear convection permitting climate model grid

Please note the license terms issued along with this dataset. B) Modification of the original data The data was interpolated to a rotated curvilinear grid defined with an approximate grid spacing of 3km for central Europe (CEU3) and height corrected (temperature data only). Specifically, the original data was modified in the following ways: I) Temperature data - tas, tasmin, tasmax 1) Interpolation to rotated CEU3 grid via nearest neighbour remapping 2) Unit conversion from degC to K 3) Height correction assuming a constant lapse rate of 0.0065K/m based on the differences in the orography files corresponding to COSMO-CCLM (considered as the reference orography on CEU3) and HYRAS version 5.0.

The resulting temperature deltas required for the height correction are provided in aux_files/delta_tas_NCOS02_HYRAS.nc and need to be subtracted from the interpolated files in order to obtain height corrected tas, tasmin, and tasmax. II) Precipitation data 1) Interpolation to rotated CEU3 grid via conservative remapping (requires creation of a grid descriptor file for the native HYRAS grid) The modification of the files was performed using the Climate Data Operators framework, version 2.0.6 (mpimet.mpg.de/cdo).