<div dir="ltr"><div>Hi has anyone used Dhudhia, RRTM, KF with the kfeta_trigger, and cu_rad feedback  combination together. Am trying to set these physics options but wrf.exe doesn&#39;t run infact I get message that error in reading physics options. When I uncomment the </div><div>! kfeta_trigger                        = 1,<br>! cu_rad_feedback (max dom)   </div><div><br></div><div> wrf complains generating this error</div><div><br></div><div>INPUT LandUse = &quot;USGS&quot;<br>  LANDUSE TYPE = &quot;USGS&quot; FOUND           33  CATEGORIES            2  SEASONS WATER CATEGORY =            16  SNOW CATEGORY =            24<br>   returning from of landuse_init<br>   module_start: phy_init: Before call to ra_init<br> -------------- FATAL CALLED ---------------<br> FATAL CALLED FROM FILE:  &lt;stdin&gt;  LINE:    1839<br> Need CAM or RRTMG radiation for bucket_J option</div><div><br></div><div>I would like the physics combination for my study. How can correct this so that I use the options below. Is it that my combinations of phyisics lacks compatibility?</div><div> </div><div>&amp;physics<br> mp_physics                          = 6,<br> ra_lw_physics                       = 1,<br> ra_sw_physics                       = 1,<br> radt                                = 30,<br> sf_sfclay_physics                   = 1,<br> sf_surface_physics                  = 2,<br> bl_pbl_physics                      = 1,<br> bldt                                = 0,<br> cu_physics                          = 1,<br> cudt                                = 5,<br>kfeta_trigger                        = 1,<br>cu_rad_feedback (max dom)           = .true.,<br> isfflx                              = 1,<br> sst_update                          = 1,<br> tmn_update                          = 1,<br> sst_skin                            = 1,<br> bucket_mm                           = 100.0,<br> bucket_J                            = 1.e9,<br> ifsnow                              = 1,<br> icloud                              = 1,<br> surface_input_source                = 1,<br> num_soil_layers                     = 4,<br> sf_urban_physics                    = 0,<br>  /</div><p> &amp;fdda<br> grid_fdda = 2,<br> gfdda_inname = &quot;wrffdda_d&lt;domain&gt;&quot;,<br> gfdda_interval_m = 360,<br> gfdda_end_h = 96,<br> io_form_gfdda = 2,<br> fgdt = 0,<br> if_no_pbl_nudging_uv = 1,<br> if_no_pbl_nudging_t = 1,<br> if_no_pbl_nudging_q = 1,<br> if_no_pbl_nudging_ph = 1,<br> if_zfac_uv = 1,<br> k_zfac_uv = 18,<br> if_zfac_t = 1,<br> k_zfac_t = 18,<br> if_zfac_q = 1,<br> k_zfac_q = 18,<br> if_zfac_ph = 1,<br> k_zfac_ph = 18,<br> guv = 0.0003,<br> gt = 0.0003,<br> gq = 0.0003,<br> gph = 0.0003,<br> xwavenum = 5,<br> ywavenum = 5,<br> if_ramping = 0,<br> dtramp_min = 60.0,</p></div>