WRF - Developmental Testbed Center

In addition to the variables listed above, the following variables are used to specifyphysics options and need to have values for all domains (as many columns as domains:mp_physics, ra_lw_pjysics, ra_sw_physics, nrads, nradl, sf_sfclay_physics,sf_surface_physics, bl_pbl_physics, nphs, cu_physics, ncnvc.Note: It is recommended to run all domains with the same physics, the exception beingthe possibility of running cumulus parameterization in the coarser domain(s) butexcluding it from the finer domain(s).In case of doubt about whether a given variable accepts values for nested grids, search forthat variable in the file WRFV3/Registry/Registry and check to see if the stringmax_doms is present in that line.Before starting the WRF model, make sure to place the nest’s time-invariant landdescribingfile in the proper directory.For example, when using WPS, place the file geo_nmm_nest.l01.nc in the workingdirectory where the model will be run. If more than one level of nest will be run, placeadditional files geo_nmm_nest.l02.nc, geo_nmm_nest.l03.nc etc. in the workingdirectory.WRF-NMM V3: User’s Guide 5-25