Verification of ECHAM6 nudging module when ECHAM6 has synchronized to its own outputs. Some physics schemes are switched off as the following namelist was used. &physctl LCOVER = .false. lphys=.true. lconv=.false. lgwdrag=.false. lrad=.true. lsurf=.false. lvdiff=.false. lcond=.false. / Files and description: ndg_197102.nc ECHAM6 grb output converting to netcdf format as a reference data for ECHAM6 nudging module diff_t_197102_gp_rmse.nc Spatial root mean square errors on all levels and at all outputs (6 hourly). RMSE between ECHAM6 output (echam6_nudging_grb_T63_197102.01_echam) and reference data (ndg_197102.nc) namelist.echam namelist used to run ECHAM6 nudging case, in which nudging is expected to only apply to layer 11 to 47. Four ECHAM6 outputs when nudging module is switched on echam6_nudging_grb_T63_197102.01_echam echam6_nudging_grb_T63_197102.01_echam.codes echam6_nudging_grb_T63_197102.01_nudg echam6_nudging_grb_T63_197102.01_nudg.codes Two log files generated by ECHAM6 executable r_nudging_err r_nudging_log