| blob | 4f1d31f71b4e6eadf61fd0c961d8fd8d36d39d52 |
1 Description of namelist variables
3 ---------------------------------
5 Note: variables followed by (max_dom) indicate that this variable needs to
6 be defined for the nests when max_dom > 1.
8 &time_control
9 run_days = 0, ! run time in days
10 run_hours = 0, ! run time in hours
11 Note: if it is more than 1 day, one may use both run_days and run_hours
12 or just run_hours. e.g. if the total run length is 36 hrs, you may
13 set run_days = 1, and run_hours = 12, or run_days = 0, and run_hours = 36.
14 run_minutes = 0, ! run time in minutes
15 run_seconds = 0, ! run time in seconds
16 start_year (max_dom) = 2001, ! four digit year of starting time
17 start_month (max_dom) = 06, ! two digit month of starting time
18 start_day (max_dom) = 11, ! two digit day of starting time
19 start_hour (max_dom) = 12, ! two digit hour of starting time
20 start_minute (max_dom) = 00, ! two digit minute of starting time
21 start_second (max_dom) = 00, ! two digit second of starting time
22 Note: the start time is used to name the first wrfout file.
23 It also controls the start time for nest domains, and the time to restart
24 end_year (max_dom) = 2001, ! four digit year of ending time
25 end_month (max_dom) = 06, ! two digit month of ending time
26 end_day (max_dom) = 12, ! two digit day of ending time
27 end_hour (max_dom) = 12, ! two digit hour of ending time
28 end_minute (max_dom) = 00, ! two digit minute of ending time
29 end_second (max_dom) = 00, ! two digit second of ending time
30 It also controls when the nest domain integrations end
31 All start and end times are used by real.exe.
33 Note that one may use either run_days/run_hours etc. or
34 end_year/month/day/hour etc. to control the length of
35 model integration. But run_days/run_hours
36 takes precedence over the end times.
37 Program real.exe uses start and end times only.
39 interval_seconds = 10800, ! time interval between incoming real data, which will be the interval
40 between the lateral boundary condition file (in seconds)
41 input_from_file (max_dom) = T, ! whether nested run will have input files for domains other than 1
42 fine_input_stream (max_dom) = 0, ! field selection from nest input for its initialization
43 0: all fields are used! 2: only static and time-varying, masked land
44 surface fields are used. This requires the use of
45 io_form_auxinput2
46 history_interval (max_dom) = 60, ! history output file interval in minutes
47 frames_per_outfile (max_dom) = 1, ! number of output times per history output file,
48 used to split output into multiple files
49 into smaller pieces
50 restart = F, ! whether this run is a restart run
51 cycling = F, ! whether this run is a cycling run, if so, initializes look-up table for Thompson schemes only
52 restart_interval = 1440, ! restart output file interval in minutes
53 reset_simulation_start = F, ! whether to overwrite simulation_start_date with forecast start time
54 io_form_history = 2, ! 2 = netCDF
55 io_form_restart = 2, ! 2 = netCDF
56 io_form_input = 2, ! 2 = netCDF
57 io_form_boundary = 2, ! netCDF format
58 = 4, ! PHD5 format
59 = 5, ! GRIB1 format
60 = 10, ! GRIB2 format
61 = 11, ! pnetCDF format
62 ncd_nofill = .true., ! only a single write, not the write/read/write sequence
63 debug_level = 0, ! 50,100,200,300 values give increasing prints
64 diag_print = 0, ! print out time series of model diagnostics
65 0 = no print
66 1 = domain averaged 3-hourly hydrostatic surface pressure tendency
67 (Dpsfc/Dt), and dry-hydrostatic column pressure tendency (Dmu/Dt)
68 will appear in stdout file
69 2 = in addition to those above, domain averaged rainfall,
70 surface evaporation, and sensible and latent heat fluxes will be output
71 all_ic_times = .false., ! whether to write out wrfinput for all processing times
72 adjust_output_times = .false., ! adjust output times to the nearest hour
73 override_restart_timers = .false., ! whether to change the alarms from what is previously set
74 write_hist_at_0h_rst = .false., ! whether to output history file at the start of restart run
75 write_restart_at_0h = .false., ! whether to output restart file at the start of restart run
76 output_ready_flag = .true., ! asks the model to write-out an empty file with the name
77 'wrfoutReady_d<domain>_<date>.
78 Useful in production runs so that post-processing code can check on the
79 completeness of this file
80 force_use_old_data = .false., ! if set to .true., allow WRF Version 3 input data
81 =.false., stop when WRF model detects Version 3 input data
83 To choose between SI and WPS input to real for EM core:
84 auxinput1_inname = "met_em.d<domain>.<date>" ! Input to real from WPS (default since 3.0)
85 = "wrf_real_input_em.d<domain>.<date>" ! Input to real from SI
87 Other output options: Note all auxhist[1-24], auxinput[2-24] interval variables are domain dependent
89 auxhist9_outname = "rainfall" ! file name for extra output! if not specified,
90 auxhist9_d<domain>_<date> will be used
91 also note that to write variables in output other
92 than the history file requires Registry.EM file change
93 auxhist9_interval (max_dom) = 10, ! interval in minutes
94 io_form_auxhist9 = 2, ! output in netCDF
95 frames_per_auxhist9 = 1000, ! number of output times in this file
97 For SST updating (used only with sst_update=1):
99 auxinput4_inname = "wrflowinp_d<domain>"
100 auxinput4_interval (max_dom) = 360 ! minutes generally matches time given by interval_seconds
101 io_form_auxinput4 = 2 ! IO format
103 nwp_diagnostics = 0 ! set to = 1 to add 7 history-interval max diagnostic fields
105 For additional regional climate surface fields
107 output_diagnostics = 0 ! set to = 1 to add 36 surface diagnostic arrays (max/min/mean/std)
108 auxhist3_outname = 'wrfxtrm_d<domain>_<date>' ! file name for added diagnostics
109 io_form_auxhist3 = 2 ! netcdf
110 auxhist3_interval (max_dom) = 1440 ! minutes between outputs (1440 gives daily max/min)
111 frames_per_auxhist3 = 1 ! output times per file
112 Note: do restart only at multiple of auxhist3_intervals
114 For observation nudging:
115 auxinput11_interval = 10 ! interval in minutes for observation data. It should be
116 set as or more frequently as obs_ionf (with unit of
117 coarse domain time step).
118 auxinput11_end_h = 6 ! end of observation time in hours.
120 Options for run-time IO:
122 iofields_filename (max_dom) = "my_iofields_list.txt",
123 (example: +:h:21:rainc, rainnc, rthcuten)
124 ignore_iofields_warning = .true., ! what to do when encountering an error in the user-specified files
125 .false., ! abort when encountering an error in iofields_filename file
127 nocolons = .false., ! whether to write file date with colons
128 .true., e.g. 2020-05-20_12_00_00
130 Additional settings when running WRFVAR:
132 write_input = t, ! write input-formatted data as output
133 inputout_interval (max_dom) = 180, ! interval in minutes when writing input-formatted data
134 input_outname = 'wrfinput_d<domain>_<date>' ! you may change the output file name
135 inputout_begin_y (max_dom) = 0
136 inputout_begin_m = 0
137 inputout_begin_d (max_dom) = 0
138 inputout_begin_h (max_dom) = 3
139 inputout_begin_m (max_dom) = 0
140 inputout_begin_s (max_dom) = 0
141 inputout_end_y (max_dom) = 0
142 inputout_end_m = 0
143 inputout_end_d (max_dom) = 0
144 inputout_end_h (max_dom) = 12
145 inputout_end_m (max_dom) = 0
146 inputout_end_s (max_dom) = 0 ! the above shows that the input-formatted data are output
147 starting from hour 3 to hour 12 in 180 min interval.
149 For automatic moving nests: requires special input data, and environment variable TERRAIN_AND_LANDUSE set at compile time
150 (This option will overwrite input_from_file for nest domains)
151 input_from_hires (max_dom) = .true.,
152 rsmas_data_path = "path-to-terrain-and-landuse-dataset"
154 &domains
155 time_step = 60, ! time step for integration in integer seconds
156 recommend 6*dx (in km) for typical real-data cases
157 time_step_fract_num = 0, ! numerator for fractional time step
158 time_step_fract_den = 1, ! denominator for fractional time step
159 Example, if you want to use 60.3 sec as your time step,
160 set time_step = 60, time_step_fract_num = 3, and
161 time_step_fract_den = 10
162 time_step_dfi = 60, ! time step for DFI, may be different from regular time_step
163 reasonable_time_step_ratio = 6., ! Any d01, real-data case with a time step ratio larger than this is stopped. Except for specific circumstances (e.g., using IEVA), this value should be no larger than 6 (default).
164 max_dom = 1, ! number of domains - set it to > 1 if it is a nested run
165 s_we (max_dom) = 1, ! start index in x (west-east) direction (leave as is)
166 e_we (max_dom) = 91, ! end index in x (west-east) direction (staggered dimension)
167 s_sn (max_dom) = 1, ! start index in y (south-north) direction (leave as is)
168 e_sn (max_dom) = 82, ! end index in y (south-north) direction (staggered dimension)
169 s_vert (max_dom) = 1, ! start index in z (vertical) direction (leave as is)
170 e_vert (max_dom) = 30, ! end index in z (vertical) direction (staggered dimension)
171 Note: this refers to full levels including surface and top
172 vertical dimensions need to be the same for all nests
173 Note: most variables are unstaggered (= staggered dim - 1)
174 dx (max_dom) = 10000, ! grid length in x direction; unit in meters.
175 dy (max_dom) = 10000, ! grid length in y direction; unit in meters.
176 ztop (max_dom) = 19000. ! used in mass model for idealized cases
177 grid_id (max_dom) = 1, ! domain identifier
178 parent_id (max_dom) = 0, ! id of the parent domain
179 i_parent_start (max_dom) = 0, ! starting LLC I-indices from the parent domain
180 j_parent_start (max_dom) = 0, ! starting LLC J-indices from the parent domain
181 parent_grid_ratio (max_dom) = 1, ! parent-to-nest domain grid size ratio: for real-data cases
182 the ratio has to be odd! for idealized cases,
183 the ratio can be even if feedback is set to 0.
184 parent_time_step_ratio (max_dom) = 1, ! parent-to-nest time step ratio! it can be different
185 from the parent_grid_ratio
186 feedback = 1, ! feedback from nest to its parent domain; 0 = no feedback
187 smooth_option = 2 ! smoothing option for parent domain, used only with feedback
188 option on. 0: no smoothing; 1: 1-2-1 smoothing; 2: smoothing-desmoothing (default)
190 Namelist variables specifically for the WPS input for real:
192 num_metgrid_soil_levels = 4 ! number of vertical soil levels or layers input
193 from WPS metgrid program
194 num_metgrid_levels = 27 ! number of vertical levels of 3d meteorological fields coming
195 from WPS metgrid program
196 interp_type = 2 ! vertical interpolation
197 1 = linear in pressure
198 2 = linear in log(pressure)
199 extrap_type = 2 ! vertical extrapolation of non-temperature fields
200 1 = extrapolate using the two lowest levels
201 2 = use lowest level as constant below ground
202 t_extrap_type = 2 ! vertical extrapolation for potential temperature
203 1 = isothermal
204 2 = -6.5 K/km lapse rate for temperature
205 3 = constant theta
206 use_levels_below_ground = .true. ! in vertical interpolation, use levels below input surface level
207 T = use input isobaric levels below input surface
208 F = extrapolate when WRF location is below input surface value
209 use_surface = .true. ! use the input surface level data in the vertical interp and extrap
210 T = use the input surface data
211 F = do not use the input surface data
212 lagrange_order = 2 ! vertical interpolation order
213 1 = linear
214 2 = quadratic
215 9 = cubic spline
216 zap_close_levels = 500 ! ignore isobaric level above surface if delta p (Pa) < zap_close_levels
217 lowest_lev_from_sfc = .false. ! place the surface value into the lowest eta location
218 ! T = use surface value as lowest eta (u,v,t,q)
219 ! F = use traditional interpolation
220 force_sfc_in_vinterp = 1 ! use the surface level as the lower boundary when interpolating
221 through this many eta levels
222 0 = perform traditional trapping interpolation
223 n = first n eta levels directly use surface level
224 maxw_horiz_pres_diff = 5000 ! Pressure threshold (Pa). For using the level of max winds, when the
225 pressure difference between neighboring values exceeds this maximum,
226 the variable is NOT inserted into the column for vertical interpolation.
227 trop_horiz_pres_diff = 5000 ! Pressure threshold (Pa). For using the tropopause level, when the
228 pressure difference between neighboring values exceeds this maximum,
229 the variable is NOT inserted into the column for vertical interpolation.
230 maxw_above_this_level = 30000 ! Minimum height (actually it is pressure in Pa) to allow using the
231 level of max wind information in real. With a value of 300 hPa, then
232 a max wind value at 500 hPa will be ignored.
233 use_maxw_level 0=do not use max wind speed level in vertical interpolation inside
234 of the real program, 1 = use level
235 use_trop_level as above, with tropopause level data
236 sfcp_to_sfcp = .false. ! Optional method to compute model's surface pressure when incoming
237 data only has surface pressure and terrain, but not SLP
238 smooth_cg_topo = .false. ! Smooth the outer rows and columns of domain 1's topography w.r.t.
239 the input data
240 use_tavg_for_tsk = .false. ! whether to use diurnally averaged surface temp as skin temp. The
241 diurnally averaged surface temp can be computed using WPS utility
242 avg_tsfc.exe. May use this option when SKINTEMP is not present.
243 aggregate_lu = .false. ! whether to aggregate the grass, shrubs, trees in dominant landuse;
244 default is false.
245 rh2qv_wrt_liquid = .true., ! whether to compute RH with respect to water (true) or ice (false)
246 rh2qv_method = 1, ! which method to use to computer mixing ratio from RH:
247 default is option 1, the old MM5 method; option 2 uses a WMO
248 recommended method (WMO-No. 49, corrigendum, August 2000) -
249 use_sh_qv = .false., ! whether to use specific humidity or mixing ratio data from input
250 recommended if input data has high vertical resolution
251 interp_theta = .false. ! If set to .false., it will vertically interpolate temperature
252 instead of potential temperature, which may reduce bias when
253 compared with input data
254 hypsometric_opt = 2, ! = 1: default method
255 = 2: it uses an alternative way (less biased
256 when compared against input data) to compute height in program
257 real and pressure in model.
258 wif_input_opt = 0 ! = 1: option to process the Water Ice Friendly Aerosol input from metgrid for use with mp_physics=28
259 = 2: since V4.4, option to use black carbon aerosol category with mp_physics=28, as well as its radiative effect. Must include
260 file QNWFA_QNIFA_QNBCA_SIGMA_MONTHLY.dat during WPS
261 num_wif_levels = 30 ! number of levels in the Thompson Water Ice Friendly aerosols (mp_physic=28)
262 p_top_requested = 5000 ! p_top (Pa) to use in the model
263 vert_refine_fact = 1 ! vertical refinement factor for ndown, not used for concurrent vertical grid refinement
264 vert_refine_method (max_dom) = 0 ! vertical refinement method
265 0: no vertical refinement
266 1: integer vertical refinement (must set rebalance=1)
267 2: use specified or computed eta levels for vertical refinement (must set rebalance=1)
268 rebalance = 0 ! must be set to =1 if vertical nesting is used.
270 ts_buf_size = 200 ! size of time series buffer
271 max_ts_locs = 5, ! maximum number of time series locations
272 max_ts_level = 15, ! highest model level for time series output
273 tslist_unstagger_winds = .false., ! whether to interpolate 3D u and v to cell centers
275 Users may explicitly define full eta levels. Given are two distributions for 28 and 35 levels. The number
276 of levels must agree with the number of eta surfaces allocated (e_vert). Users may alternatively request
277 only the number of levels (with e_vert), and the real program will compute values. There are
278 two methods selected with auto_levels_opt = 1 (old) or 2 (new). The old computation assumes
279 a known first several layers, then generates equi-height spaced levels up to the top of the model.
280 The new method has surface and upper stretching factors (dz_stretch_s and dz_stretch_u) to stretch levels according to
281 log p up to where it reaches the maximum thickness (max_dz) and starting from thickness dzbot.
282 The stretching transitions from dzstretch_s to dzstretch_u by the time the thickness reaches max_dz/2.
284 max_dz = 1000. ! maximum level thickness allowed (m)
285 auto_levels_opt = 1 ! old
286 = 2 ! new default (also set dzstretch_s, dzstretch_u, dzbot, max_dz)
287 dzbot = 50. ! thickness of lowest layer (m) for auto_levels_opt=2
288 dzstretch_s = 1.3 ! surface stretch factor for auto_levels_opt=2
289 dzstretch_u = 1.1 ! upper stretch factor for auto_levels_opt=2
291 eta_levels = 1.000, 0.990, 0.978, 0.964, 0.946,
292 0.922, 0.894, 0.860, 0.817, 0.766,
293 0.707, 0.644, 0.576, 0.507, 0.444,
294 0.380, 0.324, 0.273, 0.228, 0.188,
295 0.152, 0.121, 0.093, 0.069, 0.048,
296 0.029, 0.014, 0.000,
297 eta_levels = 1.000, 0.993, 0.983, 0.970, 0.954,
298 0.934, 0.909, 0.880, 0.845, 0.807,
299 0.765, 0.719, 0.672, 0.622, 0.571,
300 0.520, 0.468, 0.420, 0.376, 0.335,
301 0.298, 0.263, 0.231, 0.202, 0.175,
302 0.150, 0.127, 0.106, 0.088, 0.070,
303 0.055, 0.040, 0.026, 0.013, 0.000
305 = 0,2, ! this allows vertical nesting in the nest domain
306 Note that with vertical nesting one can only use RRTM and RRTMG radiation physics
308 An example to define vertical nested levels (in program real):
310 e_vert = 35, 45,
311 eta_levels(1:35) = 1., 0.993, 0.983, 0.97, 0.954, 0.934, 0.909, 0.88, 0.8406663, 0.8013327,
312 0.761999, 0.7226653, 0.6525755, 0.5877361, 0.5278192, 0.472514,
313 0.4215262, 0.3745775, 0.3314044, 0.2917579, 0.2554026, 0.2221162,
314 0.1916888, 0.1639222, 0.1386297, 0.1156351, 0.09525016, 0.07733481,
315 0.06158983, 0.04775231, 0.03559115, 0.02490328, 0.0155102, 0.007255059, 0.
316 eta_levels(36:81) = 1.0000, 0.9946, 0.9875, 0.9789, 0.9685, 0.9562, 0.9413, 0.9238, 0.9037, 0.8813, 0.8514,
317 0.8210, 0.7906, 0.7602, 0.7298, 0.6812, 0.6290, 0.5796, 0.5333, 0.4901, 0.4493, 0.4109,
318 0.3746, 0.3412, 0.3098, 0.2802, 0.2524, 0.2267, 0.2028, 0.1803, 0.1593, 0.1398, 0.1219,
319 0.1054, 0.0904, 0.0766, 0.0645, 0.0534, 0.0433, 0.0341, 0.0259, 0.0185, 0.0118, 0.0056, 0.
321 ideal_init_method method to compute alb in idealized cases in start_em
322 = 1, alb from phb (default); = 2, alb from t_init
324 Horizontal interpolation options, coarse grid to fine grid. The default is to use
325 the Smolarkiewicz "SINT" method. However, this is known to break with the
326 implementation inside of WRF for large refinement ratios (such as 15:1). For those
327 extreme (and quite rare occurrences), other schemes are available. For options
328 1, 3, 4, and 12, the FG lateral boundaries use the same horizontal scheme for the
329 lateral BC computations.
330 interp_method_type = 1 ! bi-linear interpolation
331 = 2 ! SINT, (default)
332 = 3 ! nearest neighbor - only to be used for
333 testing purposes
334 = 4 ! overlapping quadratic
335 =12 ! again for testing, uses SINT horizontal
336 interpolation, and same scheme for
337 computation of FG lateral boundaries
339 Variables specifically for the 3d ocean initialization with a single profile. Set
340 the ocean physics option to #2. Specify a number of levels. For each of those levels,
341 provide a depth (m) below the surface. At each depth provide a temperature (K) and
342 a salinity (ppt). The default is not to use the 3d ocean. Even when the 3d ocean is
343 activated, the user must specify a reasonable ocean. Currently, this is the only way
344 available to run the 3d ocean option.
346 &physics
347 sf_ocean_physics = activate ocean model (0=no, 1=1d mixed layer; 2=3D PWP, no bathymetry)
349 &domains
350 ocean_levels = 30,
351 ocean_z ; vertical profile of layer depths for ocean (in meters), e.g.:
352 = 5., 15., 25., 35., 45., 55.,
353 65., 75., 85., 95., 105., 115.,
354 125., 135., 145., 155., 165., 175.,
355 185., 195., 210., 230., 250., 270.,
356 290., 310., 330., 350., 370., 390.
357 ocean_t ; vertical profile of ocean temps, e.g.:
358 = 302.3493, 302.3493, 302.3493, 302.1055, 301.9763, 301.6818,
359 301.2220, 300.7531, 300.1200, 299.4778, 298.7443, 297.9194,
360 297.0883, 296.1443, 295.1941, 294.1979, 293.1558, 292.1136,
361 291.0714, 290.0293, 288.7377, 287.1967, 285.6557, 284.8503,
362 284.0450, 283.4316, 283.0102, 282.5888, 282.1674, 281.7461
363 ocean_s ; vertical profile of salinity, e.g.:
364 = 34.0127, 34.0127, 34.0127, 34.3217, 34.2624, 34.2632,
365 34.3240, 34.3824, 34.3980, 34.4113, 34.4220, 34.4303,
366 34.6173, 34.6409, 34.6535, 34.6550, 34.6565, 34.6527,
367 34.6490, 34.6446, 34.6396, 34.6347, 34.6297, 34.6247,
368 34.6490, 34.6446, 34.6396, 34.6347, 34.6297, 34.6247
370 Namelist variables for controlling the specified moving nest:
371 Note that this moving nest option needs to be activated at the compile time by adding -DMOVE_NESTS
372 to the ARCHFLAGS. The maximum number of moves, max_moves, is set to 50
373 but can be modified in source code file frame/module_driver_constants.F.
374 num_moves = 0 ! total number of moves
375 move_id(max_moves) = 2,2,2,2, ! a list of nest domain id's, one per move
376 move_interval(max_moves) = 60,120,150,180, ! time in minutes since the start of this domain
377 move_cd_x(max_moves) = 1,1,0,-1, ! the number of parent domain grid cells to move in i direction
378 move_cd_y(max_moves) = 1,0,-1,1, ! the number of parent domain grid cells to move in j direction
379 positive is to move in increasing i and j direction, and
380 negative is to move in decreasing i and j direction.
381 0 means no move. The limitation now is to move only 1 grid cell
382 at each move.
384 Namelist variables for controlling the automatic moving nest:
385 Note that this moving nest option needs to be activated at the compile time by adding -DMOVE_NESTS
386 and -DVORTEX_CENTER to the ARCHFLAGS. This option uses a mid-level vortex following algorithm to
387 determine the nest move. This option is experimental.
388 vortex_interval(max_dom) = 15 ! how often the new vortex position is computed
389 max_vortex_speed(max_dom) = 40 ! used to compute the search radius for the new vortex position
390 corral_dist(max_dom) = 8 ! how many coarse grid cells the moving nest is allowed to get
391 near the mother domain boundary
392 track_level = 50000 ! pressure value in Pa where the vortex is tracked
393 time_to_move(max_dom) = 0. ! time (in minutes) to start the moving nests
395 tile_sz_x = 0, ! number of points in tile x direction
396 tile_sz_y = 0, ! number of points in tile y direction
397 can be determined automatically
398 numtiles = 1, ! number of tiles per patch (alternative to above two items)
399 nproc_x = -1, ! number of processors in x for decomposition
400 nproc_y = -1, ! number of processors in y for decomposition
401 -1: code will do automatic decomposition
402 >1: for both: will be used for decomposition
404 Namelist variables for controlling the adaptive time step option:
405 use_adaptive_time_step = .false. ! T/F use adaptive time stepping.
406 step_to_output_time = .true. ! if adaptive time stepping, T/F modify the
407 time steps so that the exact history time is reached
408 target_cfl(max_dom) = 1.2,1.2 ! vertical and horizontal CFL <= to this value implies
409 no reason to reduce the time step, and to increase it
410 target_hcfl(max_dom) = .84,.84 ! horizontal CFL <= to this value implies
411 max_step_increase_pct(max_dom) = 5,51 ! percentage of previous time step to increase, if the
412 max(vert cfl, horiz cfl) <= target_cfl, then the time
413 will increase by max_step_increase_pct. Use something
414 large for nests (51% suggested)
415 starting_time_step(max_dom) = -1,-1 ! flag = -1 implies use 4*dx (defined in start_em),
416 starting_time_step = 100 means the starting time step
417 for the coarse grid is 100 s
418 max_time_step(max_dom) = -1,-1 ! flag = -1 implies max time step is 8*dx,
419 max_time_step = 100 means that the time step will not
420 exceed 100 s
421 min_time_step(max_dom) = -1,-1 ! flag = -1 implies max time step is 3*dx,
422 min_time_step = 100 means that the time step will not
423 be less than 100 s
424 adaptation_domain = 1 ! default, all fine grid domains adaptive dt driven by coarse-grid
425 2 = Fine grid domain #2 determines the fundamental adaptive dt.
427 &dfi_control
428 dfi_opt = 0 ! which DFI option to use (3 is recommended)
429 0 = no digital filter initialization
430 1 = digital filter launch (DFL)
431 2 = diabatic DFI (DDFI)
432 3 = twice DFI (TDFI)
433 dfi_nfilter = 7 ! digital filter type to use (7 is recommended)
434 0 = uniform
435 1 = Lanczos
436 2 = Hamming
437 3 = Blackman
438 4 = Kaiser
439 5 = Potter
440 6 = Dolph window
441 7 = Dolph
442 8 = recursive high-order
443 dfi_write_filtered_input = .true. ! whether to write wrfinput file with filtered
444 model state before beginning forecast
445 dfi_write_dfi_history = .false. ! whether to write wrfout files during filtering integration
446 dfi_cutoff_seconds = 3600 ! cutoff period, in seconds, for the filter
447 dfi_time_dim = 1000 ! maximum number of time steps for filtering period
448 this value can be larger than necessary
449 dfi_bckstop_year = 2004 ! four-digit year of stop time for backward DFI integration
450 dfi_bckstop_month = 03 ! two-digit month of stop time for backward DFI integration
451 dfi_bckstop_day = 14 ! two-digit day of stop time for backward DFI integration
452 dfi_bckstop_hour = 12 ! two-digit hour of stop time for backward DFI integration
453 dfi_bckstop_minute = 00 ! two-digit minute of stop time for backward DFI integration
454 dfi_bckstop_second = 00 ! two-digit second of stop time for backward DFI integration
455 dfi_fwdstop_year = 2004 ! four-digit year of stop time for forward DFI integration
456 dfi_fwdstop_month = 03 ! two-digit month of stop time for forward DFI integration
457 dfi_fwdstop_day = 13 ! two-digit month of stop time for forward DFI integration
458 dfi_fwdstop_hour = 12 ! two-digit month of stop time for forward DFI integration
459 dfi_fwdstop_minute = 00 ! two-digit month of stop time for forward DFI integration
460 dfi_fwdstop_second = 00 ! two-digit month of stop time for forward DFI integration
461 dfi_savehydmeteors = 0 ! option for radar DA: 0: set hydrometeors to 0 before DFI and
462 let them spin up in DFI; 1: keep them unchanged in DFI
464 &physics
466 Note: even the physics options can be different in different nest domains,
467 caution must be used as what options are sensible to use
469 chem_opt (max_dom) = 0, ! chemistry option - use WRF-Chem
470 mp_physics (max_dom) microphysics option
471 = 0, no microphysics
472 = 1, Kessler scheme
473 = 2, Lin et al. scheme
474 = 3, WSM 3-class simple ice scheme
475 = 4, WSM 5-class scheme
476 = 5, Ferrier (new Eta) microphysics, operational High-Resolution Window version
477 = 6, WSM 6-class graupel scheme
478 = 7, Goddard 4-ice scheme
479 = 8, Thompson scheme
480 = 9, Milbrandt-Yau 2-moment scheme
481 = 10, Morrison (2 moments)
482 = 11, CAM 5.1 microphysics
483 = 13, SBU_YLIN scheme
484 = 14, WDM 5-class scheme
485 = 16, WDM 6-class scheme
486 = 18, NSSL 2-moment 4-ice scheme with predicted (unactivated) CCN (or activated CCN)
487 to change global CCN value, use
488 nssl_cccn = 0.7e9 ; CCN (#/m^3 at sea level pressure) for NSSL scheme (18) or nssl_ccn_on=1
489 Also sets ccn_conc for mp_physics=18
490 For NSSL 1-moment schemes, intercept and particle densities can be set for snow,
491 graupel, hail, and rain. For the 1- and 2-moment schemes, the shape parameters
492 for graupel and hail can be set.
493 PLEASE SEE doc/README.NSSLmp for options affecting the NSSL scheme
494 = 17, 19, 21, 22: Legacy NSSL-MP options: see README.NSSLmp for equivalent settings with 18
495 = 24, WSM 7-class scheme (separate hail and graupel categories)
496 = 26, WDM 7-class scheme (separate hail and graupel categories)
497 = 28, aerosol-aware Thompson scheme with water- and ice-friendly aerosol climatology
498 This option has two climatological aerosol input options:
499 use_aero_icbc = .F. : use constant values
500 use_aero_icbc = .T. : use climatological aerosol input from WPS
501 use_rap_aero_icbc = .false. ! Set to .true. to ingest real-time data containing aerosols (new in 4.4)
502 qna_update = 0 ! set to 1 to update time-varying sfc aerosol emission from climatology or
503 real-time data
504 with mp_physics = 28. Use with input file ‘wrfqnainp_d0*’
505 (must set auxinput17_interval and io_form_auxinput17; new in 4.4)
506 wif_fire_emit = .false. ! set to .true. to include biomass burning organic and black carbon
507 aerosols with mp_physics = 28 (new in 4.4)
508 wif_fire_inj = 1 ! (default) vertically distribute biomass burning emissions
509 in mp_physics = 28 (new in 4.4)
510 = 30, HUJI (Hebrew University of Jerusalem, Israel) spectral bin microphysics,
511 fast version
512 = 32, HUJI spectral bin microphysics, full version
513 = 38, Thompson scheme with 2-moment graupel/hail (new in 4.5)
514 = 40, Morrison (2 moments) with consideration of CESM-NCSU RCP4.5 climatological
515 aerosol
516 = 50, P3 1-ice category, 1-moment cloud water
517 = 51, P3 1-ice category plus double-moment cloud water
518 = 52, P3 2-ice categories plus double-moment cloud water
519 = 53, P3 1-ice category, 3-moment ice, plus double-moment cloud water
520 = 55, Jensen-ISHMAEL (Ice-Spheroids Habit Model with Aspect-ratio Evolution) scheme
521 predicting qc, qr, and three ice species with four predictive equations for each ice
522 = 56, NTU multi-moment scheme ! for ntu3m
523 ccnty = 1 ! for aerosol background type, marine, for ntu3m
524 2 ! continental clean (default), for ntu3m
525 3 ! continental average, for ntu3m
526 4 ! continental urban, for ntu3m
528 = 95, Ferrier (old Eta) microphysics
529 = 96, Madwrf
530 = 97, Goddard GCE scheme (also uses gsfcgce_hail, gsfcgce_2ice)
532 For non-zero mp_physics options, to keep Qv .GE. 0, and to set the other moisture
533 fields .LT. a critical value to zero
535 mp_zero_out = 0, ! no action taken, no adjustment to any moist field
536 = 1, ! except for Qv, all other moist arrays are set to zero
537 if they fall below a critical value ('moist' array only)
538 = 2, ! Qv is .GE. 0, all other moist arrays are set to zero
539 if they fall below a critical value ('moist' array only)
540 mp_zero_out_thresh = 1.e-8 ! critical value for moist array threshold, below which
541 moist arrays (except for Qv) are set to zero (kg/kg)
542 mp_zero_out_all = 0, ! if =1 and mp_zero_out>0, then reproduce old behavior and
543 apply threshold to scalar, chem, and tracer arrays
545 gsfcgce_hail = 0 ! for running gsfcgce microphysics with graupel
546 = 1 ! for running gsfcgce microphysics with hail
547 default value = 0
548 gsfcgce_2ice = 0 ! for running with snow, ice and graupel/hail
549 = 1 ! for running with only ice and snow
550 = 2 ! for running with only ice and graupel
551 (only used in very extreme situation)
552 default value = 0
553 gsfcgce_hail is ignored if gsfcgce_2ice is set to 1 or 2.
554 hail_opt = 0 ! hail switch for WSM6 and WDM6 : 0 - off, 1 - on
555 morr_rimed_ice = 1 ! hail switch for Morrison schemes (mp_physics=10 and 40: 0 - off,
556 1 - on (new in 4.0)
557 clean_atm_diag = 0 ! if set to =1, turns on clean sky diagnostics (for chem); default is 0=off
558 acc_phy_tend = 0 ! set to =1 to output 16 accumulated physics tendencies for potential temp,
559 water vaopr mixing ratio, and U/V wind components; default is 0=off (new in 4.4)
560 progn (max_dom) = 0 ! switch to use mix-activate scheme (Only for Morrison, WDM6, WDM5,
561 and NSSL_2MOM)
562 ccn_conc = 1.E8 ! CCN concentration, used by WDM schemes (set automatically for NSSL_2MOM using nssl_cccn)
564 no_mp_heating = 0 ! normal
565 = 1 ! turn off latent heating from a microphysics scheme
566 use_mp_re = 1 ! whether to use effective radii computed in mp schemes in RRTMG
567 0: do not use; 1: use effective radii
568 (The mp schemes that compute effective radii are 3,4,6,7,8,10,14,16,18,24,26,28,50-53,55)
570 force_read_thompson = .false. ! whether to read tables for mp_physics = 8,28
571 write_thompson_tables = .true. ! whether to read or compute tables for mp_phyiscs = 8,28
572 write_thompson_mp38table = .false. ! whether to read table (qr_acr_qg_mp38V1.dat) for mp_physics = 38
574 ra_lw_physics (max_dom) longwave radiation option
575 = 0, no longwave radiation
576 = 1, rrtm scheme
577 (Default values for GHG in V4.2: co2vmr=(280. + 90.*exp(0.02*(yr-2000)))*1.e-6
578 n2ovmr=319.e-9, ch4vmr=1774.e-9
579 Values used in previous versions: co2vmr=330.e-6, n2ovmr=0., ch4vmr=0.)
580 = 3, cam scheme
581 also requires levsiz, paerlev, cam_abs_dim1/2 (see below)
582 = 4, rrtmg scheme
583 (Default values for GHG in V4.2: co2vmr=(280. + 90.*exp(0.02*(yr-2000)))*1.e-6
584 n2ovmr=319.e-9, ch4vmr=1774.e-9,
585 cfc11=0.251e-9, cfc12=0.538e-9,
586 = 14, rrtmg-k scheme from KIAPS
587 = 24, fast rrtmg scheme for GPU and MIC (since 3.7)
588 (Default values for GHG in V4.2: co2vmr=(280. + 90.*exp(0.02*(yr-2000)))*1.e-6
589 n2ovmr=319.e-9, ch4vmr=1774.e-9,
590 cfc11=0.251e-9, cfc12=0.538e-9
591 = 5, Goddard longwave scheme
592 = 7, FLG (UCLA) scheme
593 = 31, Earth Held-Suarez forcing
594 = 99, GFDL (Eta) longwave (semi-supported)
595 also must use co2tf = 1 for ARW
597 ra_sw_physics (max_dom) shortwave radiation option
598 = 0, no shortwave radiation
599 = 1, Dudhia scheme
600 = 2, Goddard short wave
601 = 3, cam scheme
602 also must set levsiz, paerlev, cam_abs_dim1/2 (see below)
603 = 4, rrtmg scheme
604 = 14, rrtmg-k scheme from KIAPS
605 = 24, fast rrtmg scheme for GPU and MIC (since 3.7)
606 = 5, Goddard shortwave scheme
607 = 7, FLG (UCLA) scheme
608 = 99, GFDL (Eta) longwave (semi-supported)
609 also must use co2tf = 1 for ARW
611 radt (max_dom) = 30, ! minutes between radiation physics calls
612 recommend 1 min per km of dx (e.g. 10 for 10 km);
613 use the same value for all nests.
614 cldovrlp = 2, ! cloud overlapping option for RRTMG only. 1=random, 2=maximum-random (default),
615 3=maximum, 4=exponential, 5=exponential-random
616 idcor = 0, ! decorrelation length flag for cldovrlp=4 or 5
617 0 = constant decorrelation length, 2500 m;
618 1 = latitude-varying decorrelation length
619 ra_sw_eclipse = 0, ! eclipse effect on shortwave radiation. 0: off, 1: on.
620 Applies to RRTMG, Goddard, old Goddard and Dudhia schemes
621 ghg_input = 1, ! Option to read CAMtr_volume_mixing_ratio files of green house gas values,
622 as of v4.4, the default is SSP 2 with RCP 4.5 => SSP245
623 Used for CAM LW and SW, RRTM, RRTMG LW and SW, RRTMG_fast LW and SW
624 0 = do not read in the annual data
625 1 = read in time dependent data for CO2, N2O, CH4, CFC11, CFC12
627 co2tf CO2 transmission function flag only for GFDL radiation
628 = 0, ! read CO2 function data from pre-generated file
629 = 1, ! generate CO2 functions internally in the forecast
631 ra_call_offset radiation call offset
632 = 0 ! (=0, no offset; =-1, old offset)
633 swint_opt Interpolation of short-wave radiation based on the updated solar zenith angle
634 between SW call
635 = 0, ! no interpolation
636 = 1, ! use interpolation
637 = 2, ! Calls the Fast All-Sky Radiation Model for Solar applications (FARMS)
638 ! every model time step.
639 couple_farms = .false. ! True) uses FARMS SW radiation to drive the LSM, False) Uses the SW radiation from rad_sw_physics
640 cam_abs_freq_s = 21600 ! default CAM clearsky longwave absorption calculation frequency
641 (recommended minimum value to speed scheme up)
642 levsiz = 59 ! for CAM radiation input ozone levels, set automatically
643 paerlev = 29 ! for CAM radiation input aerosol levels, set automatically
644 cam_abs_dim1 = 4 ! for CAM absorption save array, set automatically
645 cam_abs_dim2 = value of e_vert for CAM 2nd absorption save array, set automatically
647 o3input = ozone input option for radiation (currently rrtmg only)
648 = 0, ! using profile inside the code
649 = 2, ! using CAM ozone data (ozone.formatted)
650 aer_opt = aerosol input option for radiation (currently rrtmg only)
651 = 0, ! none
652 = 1, ! using Tegen (1997) data,
653 = 2, ! using J. A. Ruiz-Arias method (see other aer_* options)
654 = 3, ! using G. Thompson's water/ice friendly climatological aerosol
655 alevsiz = 12 ! for Tegen aerosol input levels, set automatically
656 no_src_types = 6 ! for Tegen aerosols: organic and black carbon, sea salt, sulfalte, dust,
657 and stratospheric aerosol (volcanic ashes - currently 0), set automatically
659 The following aerosol options allow RRTMG and new Goddard radiation schemes to see it, but the aerosols are
660 constant during the model integration.
661 aer_aod550_opt (max_dom) = [1,2]
662 1 = input constant value for AOD at 550 nm from namelist.
663 In this case, the value is read from aer_aod550_val;
664 2 = input value from auxiliary input 15. It is a time-varying 2D grid in netcdf
665 wrf-compatible format. The default is aer_aod550_opt=1 and aer_aod550_val=0.12
666 aer_aod550_val (max_dom) = 0.12
667 aer_angexp_opt (max_dom) = [1,2,3] :
668 1 = input constant value for Angstrom exponent from namelist. In this case,
669 the value is read from aer_angexp_val;
670 2 = input value from auxiliary input 15, as in aer_aod550_opt;
671 3 = Angstrom exponent value estimated from the aerosol type defined in aer_type, and modulated
672 with the RH in WRF. Default operation is aer_angexp_opt = 1, and aer_angexp_val=1.3.
673 aer_angexp_val (max_dom) = 1.3
674 aer_ssa_opt (max_dom) = [1,2,3] similar to aer_angexp_opt.
675 aer_ssa_val (max_dom) = 0.85
676 aer_asy_opt (max_dom) = [1,2,3] similar to aer_angexp_opt.
677 aer_asy_val (max_dom) = 0.9
678 aer_type (max_dom) = [1,2,3] : 1 for rural, 2 is urban and 3 is maritime.
680 sf_sfclay_physics (max_dom) surface-layer option (old bl_sfclay_physics option)
681 = 0, no surface-layer
682 = 1, Revised MM5 Monin-Obukhov scheme (Jimenez, renamed in v3.6)
683 = 2, Monin-Obukhov (Janjic) scheme
684 = 3, NCEP Global Forecast System scheme
685 = 4, QNSE surface layer
686 = 5, MYNN surface layer
687 = 7, Pleim-Xiu surface layer
688 = 10, TEMF surface layer
689 = 91, Old MM5 scheme (previously option 1)
691 sf_surface_physics (max_dom) land-surface option (old bl_surface_physics option)
692 = 0, no surface temp prediction
693 = 1, thermal diffusion scheme
694 = 2, Unified Noah land-surface model
695 = 3, RUC land-surface model
696 = 4, Noah-MP land-surface model (see additional &noah_mp namelist)
697 = 5, Community Land Model version 4 (CLM4), adapted from CAM
698 = 6, Community Terrestrial Systems Model (CTSM). See doc/README.CTSM for info on running this option.
699 = 7, Pleim-Xiu LSM
700 = 8, Simplified Simple Biosphere Model (SSiB)
701 - can be used with Dudhia/RRTM, CAM or RRTMG radiation options
703 sf_urban_physics(max_dom) = 0, ! activate urban canopy model (in Noah and Noah-MP LSMs only)
704 = 0: no
705 = 1: Single-layer, UCM
706 = 2: Multi-layer, Building Environment Parameterization (BEP) scheme
707 (works only with YSU, MYJ and BouLac PBL)
708 = 3: Multi-layer, Building Environment Model (BEM) scheme
709 (works only with YSU, MYJ and BouLac PBL)
711 num_urban_ndm = 1! (= 2 if BEP or BEM active) maximum number of street dimensions (ndm in BEP or BEM header)
712 num_urban_ng = 1! (= 10 if BEP or BEM active) number of grid levels in the ground (ng_u in BEP or BEM header)
713 num_urban_nwr = 1! (= 10 if BEP or BEM active) number of grid levels in the walls or roof (nwr_u in BEP or BEM header)
714 num_urban_nz = 1! (= 18 if BEP or BEM active) maximum number of vertical levels in the urban grid (nz_um in BEP or BEM header)
715 num_urban_ngb = 1! (= 10 if BEM active) number of grid levels in the ground below building (ngb_u in BEM header)
716 num_urban_nf = 1! (= 10 if BEM active) number of grid levels in the floors (nf_u in BEM header)
717 num_urban_nbui = 1! (= 15 if BEM active) maximum number of types of buildings in an urban class (nbui_max in BEM header)
719 sf_surf_irr_scheme (max_dom) = 0: no irrigation scheme
720 = 1: channel scheme (in Noah only)
721 = 2: drip scheme
722 = 3: sprinkler scheme
724 irr_daily_amount (max_dom) = daily equivalent irrigation water amount in mm (float, e.g. 5.7)
725 irr_start_hour (max_dom) = UTC start hour for irrigation (int, e.g. 5)
726 irr_num_hours (max_dom) = number of consecutive hours for irrigation (int, e.g. 3)
727 irr_start_julianday (max_dom) = Julian start day of irrigation (int, e.g. 135)
728 irr_end_julianday (max_dom) = Julian end day of irrigation (int, e.g. 255)
729 irr_ph (max_dom) = 0: all the static IRRIGATION field is activated
730 = 1: pseudo random activation field: ensures repeatability across compilers
731 = 2: random activation field: results might depend on the compiler fortran RANDOM_SEED
732 irr_freq (max_dom) = irrigation frequency in days (int, e.g. 3)
734 bl_pbl_physics (max_dom) boundary-layer option
735 = 0, no boundary-layer
736 = 1, YSU scheme
737 = 2, Mellor-Yamada-Janjic TKE scheme
738 = 3, Hybrid EDMF GFS scheme
739 = 4, Eddy-diffusivity Mass Flux, Quasi-Normal Scale Elimination PBL
740 = 5, MYNN 2.5 level TKE scheme, works with
741 sf_sfclay_physics=1 or 2 as well as 5
742 (option 6 removed in 4.5, replaced by bl_mynn_closure options)
743 bl_mynn_closure = 2.5: level 2.5
744 2.6: level 2.6
745 3.0: level 3.0
746 = 7, ACM2 (Pleim) PBL
747 = 8, Bougeault and Lacarrere (BouLac) PBL
748 = 9, UW boundary layer scheme from CAM5 (CESM 1_0_1)
749 = 10, TEMF (Total Energy Mass Flux) scheme
750 sf_sfclay_physics=10
751 = 11, Shin-Hong 'scale-aware' PBL scheme
752 = 12, Grenier-Bretherton-McCaa scheme
753 = 16, TKE+TKE dissipation rate (epsilon) scheme
754 works with surface layer options 1,91,2,5.
755 = 17, TKE+TKE dissipation rate+TPE (temparature variance) scheme
756 = 99, MRF scheme
758 bldt (max_dom) = 0, ! minutes between boundary-layer physics calls
760 grav_settling (max_dom) gravitational settling of fog/cloud droplets (Now works for any PBL scheme)
761 = 0, No settling of cloud droplets
762 = 1, Settling from Dyunkerke 1991 (in atmos and at surface)
763 = 2, Fogdes (vegetation & wind speed dependent; Katata et al. 2008) at surface
764 and Dyunkerke in the atmos.
765 ysu_topdown_pblmix = 0, ! whether to turn on top-down, radiation-driven mixing (1=yes)
766 mfshconv (max_dom) = 1, ! whether to turn on new day-time EDMF QNSE (0=no)
767 topo_wind (max_dom) = 0, ! turn off,
768 = 1, turn on topographic surface wind correction from Jimenez
769 (YSU PBL only, and require extra input from geogrid)
770 = 2, turn on topographic surface wind correction from Mass (YSU PBL only)
772 tke_budget (max_dom) = 0, ! default off; = 1 adds MYNN tke budget terms to output (new in 4.5)
773 (replacing bl_mynn_tkebudget in prior versions)
774 bl_mynn_tkeadvect (max_dom) = .false., ! default off; = .true. do MYNN tke advection
775 icloud_bl option to couple the subgrid-scale clouds from the PBL scheme (MYNN only)
776 to radiation schemes
777 0: no coupling; 1: activate coupling to radiation (default)
778 bl_mynn_cloudmix (max_dom) = 0 ! default off; =1 activates mixing of qc and qi in MYNN
779 0: no mixing of qc & qi; 1: mixing activated (default).
780 Note qnc and qni are mixed when scalar_pblmix =1.
781 bl_mynn_mixlength option to change mixing length formulation in MYNN
782 0: original as in Nakanishi and Niino 2009,
783 1: RAP/HRRR (including BouLac in free atmosphere),
784 2: experimental (default; includes cloud-specific mixing length and a scale-aware mixing
785 length, following Ito et al. 2015, BLM). Option 2 has been well tested with
786 the edmf options.
787 bl_mynn_cloudpdf option to switch to different cloud PDFs to represent subgrid clouds
788 0: original (Sommeria and Deardorf 1977);
789 1: Kuwano et al 2010, similar to option 0, but uses resolved scale gradients
790 as opposed to higher order moments ;
791 2: from Chaboureau and Bechtold (2002, JAS, with mods, default)
792 bl_mynn_edmf (max_dom) = 1 ! activate mass-flux option in MYNN, 0: mass-flux option off
793 Related (hidden) options:
794 bl_mynn_edmf_mom (max_dom) = 1 ! - activates momentum transport in MYNN mass-flux scheme
795 (assuming bl_mynn_edmf > 0); 0=off (default)
796 0 no momentum transport; 1: momentum transport activated (default)
797 bl_mynn_edmf_tke (max_dom) = 0, ! default; = 1 activates TKE transport in MYNN mass-flux scheme
798 (assuming bl_mynn_edmf > 0)
799 0 no TKE transport (default);1: activate TKE transport
800 bl_mynn_output (max_dom) = 0, ! do not output extra arrays
801 1 allocate and output extra 3D arrays from MYNN PBL
802 bl_mynn_mixscalars (max_dom) = 0 ! off, 1: activate mixing of scalars
803 bl_mynn_mixqt (max_dom) = 0 ! mixing moisture species separately, 1: mixing total water
805 scalar_pblmix (max_dom) = 1 ! mix scalar fields consistent with PBL option (exch_h)
806 tracer_pblmix (max_dom) = 1 ! mix tracer fields consistent with PBL option (exch_h)
807 shinhong_tke_diag (max_dom) = 0 ! diagnostic TKE and mixing length from Shin-Hong PBL
808 opt_thcnd option to treat thermal conductivity in Noah LSM
809 = 1, original (default)
810 = 2, McCumber and Pielke for silt loam and sandy loam
811 sf_surface_mosaic option to mosaic landuse categories for Noah LSM
812 = 0 ! default; use dominant category only
813 = 1 ! use mosaic landuse categories
814 mosaic_cat = 3 ! number of mosaic landuse categories in a grid cell
815 mosaic_lu = 0, ! default ; set to = 1 to use mosaic landuse categories in RUC
816 mosaic_soil = 0, ! default ; set to = 1 to use mosaic soil categories in RUC
817 flag_sm_adj = 0, ! default ; set to = 1 to adjust soil moisture for RUC in real.exe
818 (e.g. in case RUC is initialized from GFS LSM data)
820 cu_physics (max_dom) cumulus option
821 = 0, no cumulus
822 = 1, Kain-Fritsch (new Eta) scheme
823 = 2, Betts-Miller-Janjic scheme
824 = 3, Grell-Freitas ensemble scheme
825 = 4, Scale-aware GFS Simplified Arakawa-Schubert (SAS) scheme
826 = 5, Grell 3D ensemble scheme
827 = 6, Modifed Tiedtke scheme
828 = 7, Zhang-McFarlane scheme from CAM5 (CESM 1_0_1)
829 = 10, Modified Kain-Fritsch scheme with trigger function based on PDFs
830 = 11, Multi-scale Kain-Fritsch scheme
831 = 14, KIM Simplified Arakawa-Schubert scheme (KSAS) across gray-zone resolutions
832 = 16, A newer Tiedtke scheme
833 = 94, 2015 GFS Simplified Arakawa-Schubert scheme (from HWRF, use with caution)
834 = 95, Previous GFS Simplified Arakawa-Schubert scheme (from HWRF, use with caution)
835 = 96, Previous NEW GFS simplified Arakawa-Schubert scheme from YSU
836 = 93, Grell-Devenyi ensemble scheme
837 = 99, previous Kain-Fritsch scheme
839 shcu_physics (max_dom) independent shallow cumulus option (not tied to deep convection)
840 = 0, no independent shallow cumulus
841 = 1, Grell 3D ensemble scheme (use with cu_physics=93 or 5) (PLACEHOLDER: SWITCH NOT YET IMPLEMENTED--use ishallow)
842 = 2, Park and Bretherton shallow cumulus from CAM5 (CESM 1_0_1)
843 = 3, GRIMS shallow cumulus from YSU group
844 = 4, NSAS shallow cululus scheme. Must be used with KIAPS SAS cumulus scheme (cu_physics = 14)
845 = 5, Deng cumulus scheme (including both shallow and deep convections) from PSU and WRF-Solar.
846 However the deep part isn't very active. Not recommended to use alone for deep convection
847 case. Could work well for grid sizes 3-9 km.
848 This scheme only works with MYJ PBL scheme, and should not be combined with icloud=3
849 This scheme can also work with MYNN PBL scheme, but one should turn off EDMF (bl_mynn_edmf=0)
851 ishallow = 0, ! = 1 turns on shallow convection, used with Grell 3D ensemble schemes (cu_physics = 3 or 5)
852 clos_choice = 0, ! closure choice (place holder only)
853 cu_diag (max_dom) = 0, ! additional t-averaged stuff for cu physics (cu_phys = 3, 5, 10, and 93 only)
854 kf_edrates (max_dom) = 0, ! Add entrainment/detrainment rates and convective timescale output variables for KF-based
855 cumulus schemes (cu_phys = 1, 11 and 99 only)
856 = 0, ! no output; = 1, additional output
857 convtrans_avglen_m = 30, ! averaging time for variables used by convective transport (call cu_phys options) and radiation routines (only cu_phys=3,5 and 93) (minutes)
858 cu_rad_feedback (max_dom) = .false. ! sub-grid cloud effect to the optical depth in radiation
859 currently it works only for GF, G3, GD and KF scheme
860 One also needs to set cu_diag = 1 for GF, G3, KF-CuP, and GD schemes
861 bmj_rad_feedback (max_dom) = .false. ! BMJ convective precipitation-derived sub-grid cloud effect to radiation
862 cudt (max_dom) = 0, ! minutes between cumulus physics calls
863 kfeta_trigger KF trigger option (cu_physics=1 only):
864 = 1, default option
865 = 2, moisture-advection based trigger (Ma and Tan [2009])
866 = 3, RH-dependent additional perturbation to option 1 (JMA)
867 cugd_avedx ; number of grid boxes over which subsidence is spread.
868 = 1, default, for large grid distances
869 = 3, for small grid distances (DX < 5 km)
870 nsas_dx_factor = 0, ! default option
871 = 1, NSAS grid-distance dependent option
872 For KF-CuP scheme: recommended to use with cu_rad_feedback
873 shallowcu_forced_ra(max_dom) radiative impact of shallow Cu by a prescribed maximum cloud fraction
874 = .false., option off, default
875 = .true., radiative impact of shallow cu with a cloud fraction value of 0.36
876 numbins(max_dom) number of perturbations for potential temperature and mixing ratio in the CuP PDF,
877 should be an odd number (21 is a recommended value)
878 thBinSize(max_dom) bin size of potential temperature perturbation increment (0.01 K)
879 rBinSize(max_dom) bin size of mixing ratio perturbation increment (1.0e-4 kg/kg)
880 minDeepFreq(max_dom) minimum frequency required before deep convection is allowed (0.333)
881 minShallowFreq(max_dom) minimum frequency required before shallow convection is allowed (1.0e-2)
882 shcu_aerosols_opt(max_dom) whether aerosols in shcu: 0=none, 2=prognostic (run with WRF-Chem),
884 For MSKF scheme:
885 aercu_opt option to control aerosol interaction in MSKF and Morrison microphysics (mp_physics=40)
886 = 0: no aerosol interaction
887 = 1: aerosol interaction with MSKF only
888 = 2: aerosol interaction with both MSKF and Morrison
889 ! aercu_opt = 1 and 2 both require the "CESM_RCP4.5_Aerosol_Data.dat" static runtime data
890 file. This can be downloaded from:
891 http://www2.mmm.ucar.edu/wrf/src/wrf_files/CESM_RCP4.5_Aerosol_Data.tar.gz
892 Once unpacked link/copy either of the two files to CESM_RCP4.5_Aerosol_Data.dat in
893 your run directory prior to running wrf.exe
894 aercu_fct factor to multiply with aerosol amount
895 = 1. ! default value
896 no_src_types_cu = 1 ! number of aerosol species in global aerosol data: 10 for CESM input,
897 set automatically
898 alevsiz_cu = 1 ! number of levels in global aerosol data: 30 for CESM input,
899 set automatically
900 isfflx = 1, ! heat and moisture fluxes from the surface
901 (only works for sf_sfclay_physics = 1,5,7,11)
902 1 = with fluxes from the surface
903 0 = no flux from the surface
904 with bl_pbl_physics=0 this uses tke_drag_coefficient
905 and tke_heat_flux in vertical diffusion
906 2 = use drag from sf_sfclay_physics and heat flux from
907 tke_heat_flux with bl_pbl_physics=0
908 ideal_xland = 1, ! sets XLAND (1=land,2=water) for ideal cases with no input land-use
909 run-time switch for wrf.exe physics_init (default 1 as before)
910 ifsnow = 1, ! snow-cover effects
911 (only works for sf_surface_physics = 1)
912 1 = with snow-cover effect
913 0 = without snow-cover effect
914 icloud = 1, ! cloud effect to the optical depth in radiation
915 (only works for ra_sw_physics = 1,4 and ra_lw_physics = 1,4)
916 Since 3.6, this also controls the cloud fraction options
917 1 = with cloud effect, and use cloud fraction option 1
918 (Xu-Randall method)
919 0 = without cloud effect
920 2 = with cloud effect, and use cloud fraction option 2 (0/1 based
921 on threshold
922 3 = with cloud effect, and use cloud fraction option 3, based on
923 Sundqvist et al. (1989) (since 3.7)
924 insert_init_cloud = .false., ! Default
925 = .true., ! For use with cold start (zero cloud fields), this option will
926 use the icloud=3 scheme to produce initial cloud water and cloud
927 ice fields as well as ensure initial water vapor field matches
928 saturation, which retains clouds beyond the first few timesteps.
929 swrad_scat = 1. ! scattering tuning parameter (default 1. is 1.e-5 m2/kg)
930 (works for ra_sw_physics = 1 option only)
931 surface_input_source = 3, ! where landuse and soil category data come from:
932 1 = WPS/geogrid but with dominant categories recomputed
933 2 = GRIB data from another model (only possible
934 (VEGCAT/SOILCAT are in met_em files from WPS)
935 3 = use dominant land and soil categories from WPS/geogrid (default since 3.8)
937 num_soil_layers = 5, ! number of soil layers in land surface model
938 = 5: thermal diffusion scheme
939 = 4: Noah landsurface model
940 = 6 or 9: RUC landsurface model
941 = 10: CLM4 landsurface model
942 = 2: Pleim-Xu landsurface model
943 = 3: SSiB landsurface model
944 num_land_cat = 21, ! number of land categories in input data.
945 24 - for USGS (default); 20 for MODIS
946 28 - for USGS if including lake category
947 21 - for MODIS if including lake category (default since 3.8)
948 40 - for NCLD
949 use_wudapt_lcz = 0, ! Option to use WUDAPT LCZ urban landuse categories, along with standard
950 urban classes (31-33).
951 = 0: use the traditional 33 landuse classes (31-33 for urban)
952 = 1: use the WUDAPT LCZ urban landuse categories
953 * Note: If the number of urban category in the input files is
954 inconsistent with the namelist option, error messages will occur.
955 The method to create the LCZ data is described here: http://www.wudapt.org/
956 slucm_distributed_drag = .false. ! option to use spatially varying 2-D urban Zero-plane Displacement, Roughness length for momentum, Frontal area index
957 ! currently does not work with LCZ, only works with single-layer urban physics (urban_physics=1)
958 ! need additional aforementioned 3 input variables in wrfinput file
959 distributed_ahe_opt = 0, ! option to handle anthropogenic surface heat flux (need additional input in wrfinput file)
960 = 0: no anthropogenic surface heat flux from input data
961 = 1: add to first level temperature tendency
962 = 2: add to surface sensible heat flux
963 num_soil_cat = 16, ! number of soil categories in input data
965 pxlsm_smois_init(max_dom) = 1 ! PXLSM Soil moisture initialization option
966 0 - From analysis, 1 - From moisture availability
967 or SLMO in LANDUSE.TBL
968 pxlsm_modis_veg = 1, ! PX LSM LAI and VEGFRA
969 0 - Old PX method that uses PX landuse look-up table
970 1 - Use VEGFRA and LAI in wrflowinp_d0* file
971 Note: Values used are called VEGF_PX and LAI_PX in output.
973 maxiens = 1, ! Grell-Devenyi only
974 maxens = 3, ! G-D only
975 maxens2 = 3, ! G-D only
976 maxens3 = 16 ! G-D only
977 ensdim = 144 ! G-D only
978 These are recommended numbers. If you would like to use
979 any other number, consult the code, know what you are doing.
980 seaice_threshold = 100. ! tsk < seaice_threshold, if water point and 5-layer slab
981 scheme, set to land point and permanent ice; if water point
982 and Noah scheme, set to land point, permanent ice, set temps
983 from 2 m to surface, and set smois and sh2o. The default value has changed
984 from 271 to 100 K in v3.5.1 to avoid mixed-up use with fractional seaice input
985 Used by land model option 1,2,3,4 and 8
986 sst_update = 0 ! time-varying sea-surface temp (0=no, 1=yes). If selected real
987 puts SST, XICE, ALBEDO and VEGFRA in wrflowinp_d01 file, and wrf updates
988 these from it at same interval as boundary file. Also requires
989 namelists in &time_control: auxinput4_interval, auxinput4_end_h,
990 auxinput4_inname = "wrflowinp_d<domain>", and io_form_auxinput4
991 usemonalb = .false. ! use monthly albedo map instead of table value
992 (recommended for sst_update=1)
993 rdmaxalb = .true. ! use snow albedo from geogrid; false means using values from table
994 rdlai2d = .false. ! use LAI from input; false means using values from table
995 if sst_update=1, LAI will also be in wrflowinp file
996 dust_emis = 0 ! Enable (0=no, 1=yes) surface dust emission scheme to enter mp_physics=28 QNIFA (ice-friendly aerosol variable)
997 erosion_dim = 3 ! In conjunction with dust_emis=1, this value can only be set equal to 3 (erodibility information)
998 bucket_mm = -1. ! bucket reset value for water accumulations (value in mm, -1.=inactive)
999 bucket_J = -1. ! bucket reset value for energy accumulations (value in J, -1.=inactive)
1000 tmn_update = 0 ! update deep soil temperature (1, yes; 0, no)
1001 lagday = 150 ! days over which tmn is computed using skin temperature
1002 sst_skin = 0 ! calculate skin SST
1003 slope_rad (max_dom) = 0 ! slope effects for solar radiation (1=on, 0=off)
1004 topo_shading (max_dom) = 0 ! neighboring-point shadow effects for solar radiation (1=on, 0=off)
1005 shadlen = 25000. ! max shadow length in meters for topo_shading=1
1006 sf_ocean_physics = 0 ! activate ocean model (0=no, 1=1d mixed layer; 2=3D PWP, no bathymetry)
1007 oml_hml0 = 50 ! oml model can be initialized with a constant depth everywhere (m)
1008 < 0, oml is initialized with real-time ocean mixed depth
1009 = 0, oml is initialized with climatological ocean mixed depth
1010 oml_gamma = 0.14 ! oml deep water lapse rate (K m-1)
1011 oml_relaxation_time = 0. ! Relaxation time (in second) of mixed layer ocean model back to original values
1012 (an example value is 259200 sec. (3 days))
1013 omdt = 1. ! 3D PWP time step (min). It can be set to be the same as WRF time step
1014 in corresponding nested grids, but omdt should be no less than 1.0 minute.
1015 ocean_levels = 30 ! number of vertical levels in 3DPWP. Note that the depth of each ocean
1016 model layers is specified in OM_DEPTH in wrfinput_d01
1017 traj_opt = 0 ! Forward trajectory calculation (Lee and Chen 2013)
1018 num_traj = 1000 ! number of trajectories to be released
1019 isftcflx = 0 ! alternative Ck, Cd formulation for tropical storm application
1020 sf_sfclay=1 and 11
1021 0=default
1022 1=Donelan Cd + const z0q
1023 2=Donelan Cd + Garratt
1024 sf_sfclay=5
1025 (default) =0: z0, zt, and zq from COARE3.0 (Fairall et al 2003)
1026 =1: z0 from Davis et al (2008), zt & zq from COARE3.0
1027 =2: z0 from Davis et al (2008), zt & zq from Garratt (1992)
1028 fractional_seaice = 0 ! treat sea-ice as fractional field (1) or ice/no-ice flag (0)
1029 works for sf_sfclay_physics=1,2,3,4,5,7,and 91
1030 If fractional_seaice = 1, also set seaice_threshold = 0.
1031 seaice_albedo_opt = 0 ! option to set albedo over sea ice
1032 ! 0 = seaice albedo is a constant value from namelist option seaice_albedo_default
1033 ! 1 = seaice albedo is f(Tair,Tskin,Snow) following Mills (2011) for Arctic Ocean
1034 ! 2 = seaice albedo read in from input variable ALBSI
1035 seaice_albedo_default = 0.65 ! default value of seaice albedo for seaice_albedo_opt=0
1036 seaice_snowdepth_opt = 0 ! method for treating snow depth on sea ice
1037 ! 0 = snow depth on sea ice is bounded by seaice_snowdepth_min and seaice_snowdepth_max
1038 ! 1 = snow depth on sea ice read in from input array SNOWSI (bounded by
1039 ; seaice_snowdepth_min and seaice_snodepth_max)
1040 seaice_snowdepth_max = 1.E10 ! maximum allowed accumulation of snow (m) on sea ice
1041 seaice_snowdepth_min = 0.001 ! minimum snow depth (m) on sea ice
1042 seaice_thickness_opt = 0 ! option for treating seaice thickness
1043 ! 0 = seaice thickness is uniform value taken from namelist variable seaice_thickness_default
1044 ! 1 = seaice_thickness is read in from input variable ICEDEPTH
1045 seaice_thickness_default = 3.0 ! default value of seaice thickness for seaice_thickness_opt=0
1046 tice2tsk_if2cold = .false. ! set Tice to Tsk to avoid unrealistically low sea ice temperatures
1047 iz0tlnd = 0 ! thermal roughness length for sfclay (0 = old, 1 = veg dependent Chen-Zhang Czil,
1048 2 = Zilitinkevitch (czil=0.1))
1049 for mynn sfc (0=Zilitinkevitch (def),1=Chen-Zhang,2=mod Yang,3=const zt)
1050 mp_tend_lim = 10., ! limit on temp tendency from mp latent heating from radar data assimilation
1051 prec_acc_dt (max_dom) = 0., ! number of minutes in precipitation bucket - will add three
1052 new 2d output fields: prec_acc_c, prec_acc_nc and snow_acc_nc
1053 topo_wind (max_dom) = 0, ! 1 = improve effect of topography for surface winds.
1054 ua_phys = .false. ! Option to activate UA Noah changes: a different snow-cover physics in
1055 Noah, aimed particularly toward improving treatment of snow as it relates
1056 to the vegetation canopy. Also uses new columns added in VEGPARM.TBL
1057 do_radar_ref = 0, ! 1 = allows radar reflectivity to be computed using mp-scheme-specific
1058 parameters. Currently works for mp_physics = 2,4,6,7,8,10,14,16,24,26,28
1059 Note that reflectivity is always computed for mp_physics = 9,18, and is
1060 also set =1 when nwp_diagnostics=1
1061 hailcast_opt (max_dom) = 0, ! 1 = 1-D hail growth model which predicts 1st-5th rank-ordered hail diameters, mean hail
1062 diameter and standard deviation of hail diameter. (Adams-Selin and Ziegler, MWR Dec 2016.)
1063 haildt (max_dom) = 0., ! seconds between WRF-HAILCAST calls (s)
1065 Namelist variables for lake module:
1067 sf_lake_physics(max_dom) = 1, ! lake model on/off
1068 lakedepth_default(max_dom) = 50, ! default lake depth (If there is no lake_depth information in the input data, then lake depth
1069 is assumed to be 50m)
1070 lake_min_elev(max_dom) = 5, ! minimum elevation of lakes. May be used to determine whether a water point is a lake in the absence of lake
1071 category. If the landuse type includes 'lake' (i.e. Modis_lake and USGS_LAKE), this variable is of no effects.
1072 use_lakedepth (max_dom) = 1, ! option to use lake depth data. Lake depth data is available from 3.6 geogrid program. If one didn't process
1073 the lake depth data, but this switch is set to 1, the program will stop and tell one to go back to geogrid
1074 program.
1075 = 0, do not use lake depth data.
1076 shalwater_z0 = 0, ! Shallow water roughness scheme on (1) or off (0). Only compatible with sf_sfclay_physics = 1.
1077 Bathymetry dataset from GEBCO Compilation Group. Please acknowledge the following in presentations and
1078 publications: GEBCO Compilation Group (2021) GEBCO 2021 Grid (doi:10.5285/c6612cbe-50b3-0cff-e053-6c86abc09f8f)
1079 shalwater_depth = 0.0, ! Set constant depth [m] (must be positive) for shallow water roughness scheme if no bathymetry data availabile.
1080 The scheme is intended for depths between 10.0 and 100.0 m. Any depths outside of this range will be
1081 rounded to the nearest limit value.
1082 lightning_option (max_dom) Lightning parameterization option to allow flash rate prediction without chemistry
1083 = 0 ! off
1084 = 1 ! PR92 based on maximum w, redistributes flashes within dBZ > 20 (for convection resolved runs; must also use
1085 do_radar_ref = 1, and mp_physics = 2,4,6,7,8,10,14, or 16)
1086 = 2 ! PR92 based on 20 dBZ top, redistributes flashes within dBZ > 20 (for convection resolved runs; must also use
1087 do_radar_ref = 1, and mp_physics = 2,4,6,7,8,10,14, or 16)
1088 = 3 ! Predicting the potential for lightning activity (based on Yair et al, 2010, J. Geophys. Res., 115, D04205, doi:10.1029/2008JD010868)
1089 = 11 ! PR92 based on level of neutral buoyancy from convective parameterization (for scales
1090 where a CPS is used, intended for use at 10 < dx < 50 km; must also use cu_physics = 5 or 93)
1091 lightning_dt (max_dom) = 0. ! time interval (seconds) for calling lightning parameterization. Default uses model time step
1092 lightning_start_seconds (max_dom) = 0. ! Start time for calling lightning parameterization. Recommends at least 10 minutes for spin-up.
1093 flashrate_factor (max_dom) = 1.0 ! Factor to adjust the predicted number of flashes. Recommends 1.0 for lightning_option = 11
1094 between dx=10 and 50 km. Manual tuning recommended for all other options independently
1095 for each nest.
1096 cellcount_method (max_dom) Method for counting storm cells. Used by CRM options (lightning_options=1,2).
1097 = 0, ! model determines method used
1098 = 1, ! tile-wide, appropriate for large domains
1099 = 2, ! domain-wide, appropriate for sing-storm domains
1100 cldtop_adjustment (max_dom) = 0. ! Adjustment from LNB in km. Used by lightning_option=11. Default is 0, but recommends 2 km
1101 iccg_method (max_dom) IC:CG partitioning method (IC: intra-cloud; CG: cloud-to-ground)
1102 = 0 ! Default method depending on lightning option, currently all options use iccg_method=2 by default
1103 = 1 ! Constant everywhere, set with namelist options iccg_prescribed (num|den)#, default is 0./1. (all CG).
1104 = 2 ! Coarsely prescribed 1995-1999 NLDN/OTD climatology based on Boccippio et al. (2001)
1105 = 3 ! Parameterization by Price and Rind (1993) based on cold-cloud depth
1106 = 4 ! Gridded input via arrays iccg_in_(num|den) from wrfinput for monthly mapped ratios.
1107 Points with 0/0 values use ratio defined by iccg_prescribed_(num|den)
1108 iccg_prescribed_num (max_dom) = 0. ! Numerator of user-specified prescribed IC:CG
1109 iccg_prescribed_den (max_dom) = 1. ! Denominator of user-specified prescribed IC:CG
1110 ltng_temp_upper = -45. ! Temperature (C) of upper peak of LNOx vertical distribution for IC lightning (used by &chem lnox_opt=2).
1111 ltng_temp_lower = -15. ! Temperatures (C) of lower peak of LNOx vertical distribution for both IC and CG lightning (used by &chem lnox_opt=2).
1113 Options for MAD-WRF - see doc/README.madwrf for usage information
1114 madwrf_opt = 0 ! MAD-WRF model: 0) Off, 1) Advect/diffuse passive hydrometeors (qcloud, qice, qsnow), 2) Nudge active microphysics hydrometeors to passive ones
1115 madwrf_dt_relax = 60.0 ! Relaxation time for hydrometeor nudging [s]
1116 madwrf_dt_nudge = 60.0 ! Temporal period for hydrometeor nudging [min]
1117 madwrf_cldinit = 0 ! Enhance cloud initialization: 0: Off, 1: On
1120 Options for wind turbine drag parameterization:
1122 windfarm_opt (max_dom) = 0 ! 1 = Simulates the effects of wind turbines in the atmospheric evolution, A\activates the wind farm parameterization by Fitch et al (2012)
1123 ! 2 = Activate the new wind farm scheme (mav scheme) based on Ma et al. (2022).
1124 This is similar to option 1, but it also considers subgrid-scale wind turbine wake effects
1125 windfarm_ij = 0 ! whether to use lat-lon or i-j coordinate as wind turbine locations
1126 ! 0 = The coordinate of the turbines are defined in terms of lat-lon
1127 ! 1 = The coordinate of the turbines are defined in terms of grid points
1128 ! 2 = Valid only with windfarm_opt=2. The coordinate of the turbines are defined
1129 in terms of lat-lon with the filename of 'windturbines-ll.txt'
1130 windfarm_wake_model = 2 ! Subgrid-scale wind turbine wake model, valid only with windfarm_opt=2, default is 2
1131 ! 1 = The Jensen model
1132 ! 2 = The XA model
1133 ! 3 = The GM model (windfarm_method is not used)
1134 ! 4 = Jensen and XA ensemble
1135 ! 5 = Jensen, XA and GM ensemble
1136 windfarm_overlap_method = 4 ! Wake superposition method for the Jensen and XA wind turbine wake model, valid only with windfarm_opt=2, default is 4
1137 ! 1 = linear superposition
1138 ! 2 = squared superposition
1139 ! 3 = modified squared superposition
1140 ! 4 = superposition of the hub-height wind speed (Ma et al. 2022)
1141 windfarm_deg = 0. ! The rotation degree of the wind farm layout. This is valid only when 'windfarm_opt=2' and 'windfarm_ij=1'
1142 windfarm_tke_factor = 0.25 ! Correction factor applied to the TKE coefficient (deafault is 0.25, Archer et al. 2020)
1145 Stochastic parameterization schemes:
1147 &stoch
1148 ; Random perturbation field (rand_perturb=1)
1149 rand_perturb (max_dom) = 1 ! Generate array with random perturbations for user-determined use, 1: on
1150 gridpt_stddev_rand_pert (max_dom) = 0.03 ! Standard deviation of random perturbation field at each gridpoint.
1151 Determines amplitude of random perturbations
1152 lengthscale_rand_pert (max_dom) = 500000.0 ! Perturbation lengthscale (in m).
1153 timescale_rand_pert (max_dom) = 21600.0 ! Temporal decorrelation of random field (in s).
1154 stddev_cutoff_rand_pert (max_dom) = 3.0 ! Cutoff tails of perturbation pattern above this threshold standard deviation.
1155 rand_pert_vertstruc = 0 ! Vertical structure for random perturbation field: 0=constant; 1=random phase with tilt
1156 iseed_rand_pert Seed for random number stream for rand_perturb. Will be
1157 combined with seed nens signifying ensemble member number and initial
1158 start time to ensure different random number streams for forecasts
1159 starting from different initial times and for different ensemble members.
1161 ; Stochastically perturbed physics tendencies (SPPT) (sppt=1)
1162 sppt (max_dom) = 0 ! Stochastically perturbed physics tendencies (SPPT), 0: off, 1: on
1163 gridpt_stddev_sppt (max_dom) = 0.5 ! Standard deviation of random perturbation field at each gridpoint.
1164 Determines amplitude of random perturbations
1165 lengthscale_sppt (max_dom) = 150000.0 ! Perturbation lengthscale (in m).
1166 timescale_sppt (max_dom) = 21600.0 ! Temporal decorrelation of random field (in s).
1167 sppt_vertstruc = 0. ! vertical structure for sppt, 0: constant, 1: random phase.
1168 stddev_cutoff_sppt (max_dom) = 2.0 ! Cutoff tails of perturbation pattern above this threshold standard deviation.
1169 iseed_sppt Seed for random number stream for sppt. Will be
1170 combined with seed nens signifying ensemble member number and initial
1171 start time to ensure different random number streams for forecasts
1172 starting from different initial times and for different ensemble members.
1174 ; Stochastic kinetic-energy backscatter scheme (SKEBS)(skebs=1):
1176 skebs (max_dom) = 0 ! stochastic kinetic-energy backscatter scheme, 0: off, 1: on
1177 tot_backscat_psi (max_dom) = 1.0E-05 ! Controls amplitude of rotational wind perturbations
1178 tot_backscat_t (max_dom) = 1.0E-06 ! Controls amplitude of potential temperature perturbations
1179 ztau_psi = 10800.0 ! decorr. time of noise for psi perturb
1180 ztau_t = 10800.0 ! decorr. time of noise for theta perturb
1181 rexponent_psi = -1.83 ! spectral slope of forcing for psi
1182 rexponent_t = -1.83 ! spectral slope of forcing for theta
1183 zsigma2_eps = 0.0833 ! variance of noise for psi perturb
1184 zsigma2_eta = 0.0833 ! variance of noise for theta perturb
1185 kminforc = 1 ! min. forcing wavenumber in lon. for psi perturb
1186 lminforc = 1 ! min. forcing wavenumber in lat. for psi perturb
1187 kminforct = 1 ! min. forcing wavenumber in lon. for theta perturb
1188 lminforct = 1 ! min. forcing wavenumber in lat. for theta perturb
1189 kmaxforc = 1000000 ! max. forcing wavenumber in lon. for psi perturb
1190 lmaxforc = 1000000 ! max. forcing wavenumber in lat. for psi perturb
1191 kmaxforct = 1000000 ! max. forcing wavenumber in lon. for theta perturb
1192 lmaxforct = 1000000 ! max. forcing wavenumber in lat. for theta perturb
1193 skebs_vertstruc = 0 ! Vertical structure for random perturbation field: 0=constant; 1=random phase with tilt
1195 Stochastically perturbed parameter scheme (SPP) (spp=1)
1196 sppt (max_dom) = 0 ! Stochastically perturbed parameter (SPP) scheme for
1197 ; GF convection scheme, MYNN boundary layer scheme and RUC LSM. 0: off, 1: on
1198 spp_conv (max_dom) = 0 ! Perturb parameters of GF convection scheme only
1199 gridpt_stddev_spp_conv (max_dom) = 0.3 ! Standard deviation of random perturbation field at each gridpoint.
1200 Determines amplitude of random perturbations
1201 lengthscale_spp_conv (max_dom) = 150000.0 ! Perturbation lengthscale (in m).
1202 timescale_spp_conv (max_dom) = 21600.0 ! Temporal decorrelation of random field (in s).
1203 stddev_cutoff_spp_conv (max_dom) = 3.0 ! Cutoff tails of perturbation pattern above this threshold standard deviation.
1204 iseed_spp_conv Seed for random number stream for spp_conv. Will be
1205 combined with seed nens signifying ensemble member number and initial
1206 start time to ensure different random number streams for forecasts
1207 starting from different initial times and for different ensemble members.
1208 spp_pbl (max_dom) = 0 ! Perturb parameters of MYNN PBL scheme only
1209 gridpt_stddev_spp_pbl (max_dom) = 0.15 ! Standard deviation of random perturbation field at each gridpoint.
1210 Determines amplitude of random perturbations
1211 lengthscale_spp_pbl (max_dom) = 70000.0 ! Perturbation lengthscale (in m).
1212 timescale_spp_pbl (max_dom) = 21600.0 ! Temporal decorrelation of random field (in s).
1213 stddev_cutoff_spp_pbl (max_dom) = 2.0 ! Cutoff tails of perturbation pattern above this threshold standard deviation.
1214 iseed_spp_pbl Seed for random number stream for spp_pbl . Will be
1215 combined with seed nens signifying ensemble member number and initial
1216 start time to ensure different random number streams for forecasts
1217 starting from different initial times and for different ensemble members.
1218 spp_lsm (max_dom) = 0 ! Perturb parameters of RUC LSM
1219 gridpt_stddev_spp_lsm (max_dom) = 0.3 ! Standard deviation of random perturbation field at each gridpoint.
1220 ; Determines amplitude of random perturbations
1221 lengthscale_spp_lsm (max_dom) = 50000.0 ! Perturbation lengthscale (in m).
1222 timescale_spp_lsm (max_dom) = 86400.0 ! Temporal decorrelation of random field (in s).
1223 stddev_cutoff_spp_lsm (max_dom) = 3.0 ! Cutoff tails of perturbation pattern above this threshold standard deviation.
1224 iseed_spp_lsm Seed for random number stream for spp_lsm . Will be
1225 combined with seed nens signifying ensemble member number and initial
1226 start time to ensure different random number streams for forecasts
1227 starting from different initial times and for different ensemble members.
1229 Multiple perturbations for WRF-Solar EPS (multi_perturb = 1)
1230 multi_perturb = 0 ! 1) WRF-Solar EPS: turns on stochastic perturbations tailored for solar energy applications
1231 spdt = -1.0 ! Frequency to update the stochastic perturbations [minutes]. A negative value indicates for every time step
1232 pert_farms = .false. ! Activates perturbations to the FARMS parameterization
1233 pert_farms_albedo = 0.0 ! 1.0) Perturbs the albedo, 0.0) no perturbations. Similar for other entries below
1234 pert_farms_aod = 0.0
1235 pert_farms_angexp = 0.0
1236 pert_farms_aerasy = 0.0
1237 pert_farms_qv = 0.0
1238 pert_farms_qc = 0.0
1239 pert_farms_qs = 0.0
1240 pert_deng = .false. ! Activates perturbations to Deng's shcu parameterization
1241 pert_deng_qv = 0.0
1242 pert_deng_qc = 0.0
1243 pert_deng_t = 0.0
1244 pert_deng_w = 0.0
1245 pert_mynn = .false. ! Activates perturbations to the MYNN PBL parameterization
1246 pert_mynn_qv = 0.0
1247 pert_mynn_qc = 0.0
1248 pert_mynn_t = 0.0
1249 pert_mynn_qke = 0.0
1250 pert_noah = .false. ! Activates perturbations to the Noah LSM
1251 pert_noah_qv = 0.0
1252 pert_noah_t = 0.0
1253 pert_noah_smois = 0.0
1254 pert_noah_tslb = 0.0
1255 pert_thom = .false. ! Activates perturbations to thompson microphysics
1256 pert_thom_qv = 0.0
1257 pert_thom_qc = 0.0
1258 pert_thom_qi = 0.0
1259 pert_thom_qs = 0.0
1260 pert_thom_ni = 0.0
1261 pert_cld3 = .false. ! Activates perturbations to clouds generated with icloud = 3
1262 pert_cld3_qv = 0.0
1263 pert_cld3_t = 0.0
1265 num_pert_3d = 15 ! Number of entries in STOCHPERT.TBL plus one (No need to modify)
1267 ; Stochastic Perturbations to the boundary conditions?| (perturb_bdy)
1268 perturb_bdy = 0 ! No boundary perturbations
1269 1 Use SKEBS pattern for boundary perturbations
1270 2 Use other user-provided pattern for boundary perturbations
1272 ; Stochastic perturbations to the boundary tendencies in WRF-CHEM (perturb_chem_bdy)
1273 perturb_chem_bdy Options for perturbing lateral boundaries of chemical tracers:
1274 0 = off; 1 = on with RAND_PERTURB pattern
1276 ; Common to all stochastic schemes
1277 nens =1 ! Seed for random number stream. For ensemble forecasts this parameter needs to be
1278 different for each member. The seed is a function of initial start time
1279 to ensure different random number streams for forecasts starting from
1280 different initial times. Changing this seed changes the random number
1281 streams for all activated stochastic parameterization schemes.
1284 Options for use with the Noah-MP Land Surface Model (sf_surface_physics=4):
1286 &noah_mp
1287 dveg = 4, ! Noah-MP Dynamic Vegetation option:
1288 1 = Off (LAI from table; FVEG = shdfac)
1289 2 = On (LAI predicted; FVEG calculated)
1290 3 = Off (LAI from table; FVEG calculated)
1291 4 = Off (LAI from table; FVEG = maximum veg. fraction)
1292 5 = On (LAI predicted; FVEG = maximum veg. fraction)
1293 6 = On (use FVEG = SHDFAC from input)
1294 7 = Off (use input LAI; use FVEG = SHDFAC from input)
1295 8 = Off (use input LAI; calculate FVEG)
1296 9 = Off (use input LAI; use maximum vegetation fraction)
1297 opt_crs = 1, ! Noah-MP Stomatal Resistance option:
1298 1 = Ball-Berry
1299 2 = Jarvis
1300 opt_sfc = 1 ! Noah-MP surface layer drag coefficient calculation
1301 1 = Monin-Obukhov
1302 2 = original Noah (Chen97)
1303 opt_btr = 1, ! Noah-MP Soil Moisture Factor for Stomatal Resistance
1304 1 = Noah
1305 2 = CLM
1306 3 = SSiB
1307 opt_run = 3, ! Noah-MP Runoff and Groundwater option
1308 1 = TOPMODEL with groundwater
1309 2 = TOPMODEL with equilibrium water table
1310 3 = original surface and subsurface runoff (free drainage) - default
1311 4 = BATS surface and subsurface runoff (free drainage)
1312 5 = Miguez-Macho & Fan groundwater scheme (Miguez-Macho et al. 2007 JGR; Fan et al. 2007 JGR)
1313 geogrid must have been run with GEOGRID.TBL.ARW.noahmp, use with caution
1314 6 = Variable Infiltration Capacity Model surface runoff scheme (Wood et al., 1992, JGR)
1315 7 = Xiananjiang Infiltration and surface runoff scheme ((Jayawardena and Zhou, 2000)
1316 8 = Dynamic VIC surface runoff scheme (Liang and Xie, 2001)
1317 opt_infdv = 0, ! Noah-MP infiltration option in dynamic VIC runoff scheme (only works for opt_run=8)
1318 1 = Philip scheme
1319 2 = Green-Ampt scheme
1320 3 = Smith-Parlange scheme
1321 opt_frz = 1, ! Noah-MP Supercooled Liquid Water option
1322 1 = No iteration
1323 2 = Koren's iteration
1324 opt_inf = 1, ! Noah-MP Soil Permeability option
1325 1 = Linear effects, more permeable
1326 2 = Non-linear effects, less permeable
1327 opt_rad = 3, ! Noah-MP Radiative Transfer option
1328 1 = Modified two-stream (known to cause problems when vegetation fraction is small)
1329 2 = Two-stream applied to grid-cell
1330 3 = Two-stream applied to vegetated fraction
1331 opt_alb = 2, ! Noah-MP Ground Surface Albedo option
1332 1 = BATS
1333 2 = CLASS
1334 opt_snf = 1, ! Noah-MP Precipitation Partitioning between snow and rain
1335 1 = Jordan (1991)
1336 2 = BATS: Snow when SFCTMP < TFRZ+2.2
1337 3 = Snow when SFCTMP < TFRZ
1338 4 = Use WRF precipitation partitioning
1339 5 = Use wetbulb temperature (Wang et al., 2019 GRL)
1340 opt_tbot = 2, ! Noah-MP Soil Temperature Lower Boundary Condition
1341 1 = Zero heat flux
1342 2 = TBOT at 8 m from input file
1343 opt_stc = 1, ! Noah-MP Snow/Soil temperature time scheme
1344 1 = semi-implicit
1345 2 = full-implicit
1346 3 = semi-implicit where Ts uses snow cover fraction
1347 opt_gla = 1, ! Noah-MP glacier treatment option
1348 1 = includes phase change
1349 2 = slab ice (Noah)
1350 opt_rsf = 1, ! Noah-MP surface evaporation resistance option
1351 1 = Sakaguchi and Zeng, 2009
1352 2 = Sellers (1992)
1353 3 = adjusted Sellers to decrease RSURF for wet soil
1354 4 = option 1 for non-snow; rsurf = rsurf_snow for snow (set in MPTABLE)
1355 opt_soil = 1, ! Noah-MP options for defining soil properties
1356 geogrid must have been run with GEOGRID.TBL.ARW.noahmp, use with caution
1357 1 = use input dominant soil texture
1358 2 = use input soil texture that varies with depth
1359 3 = use soil composition (sand, clay, orgm) and pedotransfer functions (OPT_PEDO)
1360 4 = use input soil properties (BEXP_3D, SMCMAX_3D, etc.) (not valid in WRF)
1361 opt_pedo = 1, ! Noah-MP options for pedotransfer functions (used when OPT_SOIL = 3)
1362 geogrid must have been run with GEOGRID.TBL.ARW.noahmp, use with caution
1363 1 = Saxton and Rawls (2006)
1364 opt_crop = 0, ! options for crop model
1365 geogrid must have been run with GEOGRID.TBL.ARW.noahmp, use with caution
1366 0 = No crop model, will run default dynamic vegetation
1367 1 = Liu, et al. 2016
1368 2 = Gecros (Genotype-by-Environment interaction on CROp growth Simulator) Yin and van Laar, 2005
1370 opt_irr = 0, ! options for irrigation scheme
1371 geogrid must have been run with GEOGRID.TBL.ARW.noahmp, use with caution
1372 0 = No irrigation
1373 1 = Irrigation ON
1374 2 = irrigation trigger based on crop season Planting and harvesting dates
1375 3 = irrigation trigger based on LAI threshold
1376 opt_irrm = 0, ! options for irrigation method (only if opt_irr > 0)
1377 geogrid must have been run with GEOGRID.TBL.ARW.noahmp, use with caution
1378 0 = method based on geo_em fractions (all three methods are ON)
1379 1 = sprinkler method
1380 2 = micro/drip irrigation
1381 3 = surface flooding
1382 opt_tdrn = 0, ! Noah-MP tile drainage option (currently only tested and works with opt_run=3)
1383 geogrid must have been run with GEOGRID.TBL.ARW.noahmp, use with caution
1384 0 = No tile drainage
1385 1 = Simple drainage
1386 2 = Hooghoudt's equation based tile drainage
1387 soiltstep = 0.0, ! Noah-MP soil process timestep (seconds) for solving soil water and temperature
1388 0 = default, the same as main NoahMP model timestep
1389 N * dt_noahmp, typically 15min or 30min
1390 noahmp_output = 1, ! Noah-MP output levels
1391 1 = standard output
1392 3 = standard output with additional water and energy budget term output
1393 noahmp_acc_dt = 0.0, ! Noah-MP bucket reset time interval (minutes) between outputs for accumulation (works when noahmp_output=3)
1394 /
1396 &fdda
1397 grid_fdda (max_dom) = 1 ! grid-nudging fdda on (=0 off) for each domain
1398 = 2 ! spectral nudging
1399 gfdda_inname = "wrffdda_d<domain>" ! defined name in real
1400 gfdda_interval_m (max_dom) = 360 ! time interval (in min) between analysis times (must use minutes)
1401 gfdda_end_h (max_dom) = 6 ! time (in hours) to stop nudging after start of forecast
1402 io_form_gfdda = 2 ! analysis data io format (2 = netCDF)
1403 fgdt (max_dom) = 0 ! calculation frequency (minutes) for grid-nudging (0=every step)
1404 if_no_pbl_nudging_uv (max_dom) = 0 ! 1= no nudging of u and v in the pbl, 0=nudging in the pbl
1405 if_no_pbl_nudging_t (max_dom) = 0 ! 1= no nudging of temp in the pbl, 0=nudging in the pbl
1406 if_no_pbl_nudging_q (max_dom) = 0 ! 1= no nudging of qvapor in the pbl, 0=nudging in the pbl
1407 if_zfac_uv (max_dom) = 0 ! 0= nudge u and v in all layers, 1= limit nudging to levels above k_zfac_uv
1408 k_zfac_uv (max_dom) = 10 ! 10=model level below which nudging is switched off for u and v
1409 if_zfac_t (max_dom) = 0 ! 0= nudge temp in all layers, 1= limit nudging to levels above k_zfac_t
1410 k_zfac_t (max_dom) = 10 ! 10=model level below which nudging is switched off for temp
1411 if_zfac_q (max_dom) = 0 ! 0= nudge qvapor in all layers, 1= limit nudging to levels above k_zfac_q
1412 k_zfac_q (max_dom) = 10 ! 10=model level below which nudging is switched off for qvapor
1413 guv (max_dom) = 0.0003 ! nudging coefficient for u and v (sec-1)
1414 gt (max_dom) = 0.0003 ! nudging coefficient for temp (sec-1)
1415 gq (max_dom) = 0.00001 ! nudging coefficient for qvapor (sec-1)
1416 if_ramping = 0 ! 0= nudging ends as a step function, 1= ramping nudging down at end of period
1417 dtramp_min = 0 ! time (min) for ramping function
1418 grid_sfdda (max_dom) = 0 ! surface fdda switch
1419 0: off;
1420 1: nudging selected surface fields;
1421 2: FASDAS (flux-adjusting surface data assimilation system)
1422 sgfdda_inname = "wrfsfdda_d<domain>" ! defined name for sfc nudgingi in input file (from program obsgrid)
1423 sgfdda_end_h (max_dom) = 6 ! time (in hours) to stop sfc nudging after start of forecast
1424 sgfdda_interval_m (max_dom) = 180 ! time interval (in min) between sfc analysis times (must use minutes)
1425 io_form_sgfdda = 2 ! sfc analysis data io format (2 = netCDF)
1426 guv_sfc (max_dom) = 0.0003 ! nudging coefficient for sfc u and v (sec-1)
1427 gt_sfc (max_dom) = 0.0003 ! nudging coefficient for sfc temp (sec-1)
1428 gq_sfc (max_dom) = 0.00001 ! nudging coefficient for sfc qvapor (sec-1)
1429 rinblw (max_dom) = 0. ! radius of influence used to determine the confidence (or weights) for
1430 the analysis, which is based on the distance between the grid point to the nearest
1431 obs. The analysis without nearby observation is used at a reduced weight.
1433 pxlsm_soil_nudge(max_dom) = 1 ! PXLSM Soil nudging option (requires wrfsfdda file)
1435 The following are for spectral nudging:
1436 fgdtzero (max_dom) = 0, ! 1= nudging tendencies are set to zero in between fdda calls
1437 if_no_pbl_nudging_uv (max_dom) = 0, ! 1= no nudging of uv in the pbl, 0= nudging in the pbl
1438 if_no_pbl_nudging_t (max_dom) = 0, ! 1= no nudging of t in the pbl, 0= nudging in the pbl
1439 if_no_pbl_nudging_ph (max_dom) = 0, ! 1= no nudging of ph in the pbl, 0= nudging in the pbl
1440 if_no_pbl_nudging_q (max_dom) = 0, ! 1= no nudging of q in the pbl, 0= nudging in the pbl
1441 if_zfac_uv (max_dom) = 0, ! 0= nudge uv in all layers, 1= limit nudging to levels above k_zfac_uv
1442 k_zfac_uv (max_dom) = 0, ! 0= model level below which nudging is switched off for uv
1443 dk_zfac_uv (max_dom) = 1, ! depth in k between k_zfac_X to dk_zfac_X where nudging increases
1444 ; linearly to full strength
1445 if_zfac_t (max_dom) = 0, ! 0= nudge t in all layers, 1= limit nudging to levels above k_zfac_t
1446 k_zfac_t (max_dom) = 0, ! 0= model level below which nudging is switched off for t
1447 dk_zfac_t (max_dom) = 1, ! depth in k between k_zfac_X to dk_zfac_X where nudging increases
1448 linearly to full strength
1449 if_zfac_ph (max_dom) = 0, ! 0= nudge ph in all layers, 1= limit nudging to levels above k_zfac_ph
1450 k_zfac_ph (max_dom) = 0, ! 0= model level below which nudging is switched off for ph
1451 dk_zfac_ph (max_dom) = 1, ! depth in k between k_zfac_X to dk_zfac_X where nudging increases
1452 linearly to full strength
1453 if_zfac_q (max_dom) = 0, ! 0= nudge q in all layers, 1= limit nudging to levels above k_zfac_q
1454 k_zfac_q (max_dom) = 0, ! 0= model level below which nudging is switched off for q
1455 dk_zfac_q (max_dom) = 1, ! depth in k between k_zfac_X to dk_zfac_X where nudging increases
1456 gph (max_dom) = 0.0003,
1457 ktrop = 0, ! layer nominally representing tropopause for limiting nudging to q and t
1458 ; setting ktrop = 0 allows nudging to extend to the top of the atmosphere
1459 xwavenum (max_dom) = 3, ! top wave number to nudge in x direction
1460 ywavenum (max_dom) = 3, ! top wave number to nudge in y direction
1462 The following are for observation nudging:
1463 obs_nudge_opt (max_dom) = 1 ! obs-nudging fdda on (=0 off) for each domain
1464 also need to set auxinput11_interval and auxinput11_end_h
1465 in time_control namelist
1466 max_obs = 0 ! max number of observations used on a domain during any
1467 given time window
1468 fdda_start (max_dom) = 0 ! obs nudging start time in minutes
1469 fdda_end (max_dom) = 0 ! obs nudging end time in minutes
1470 obs_nudge_wind (max_dom) = 1 ! whether to nudge wind: (=0 off)
1471 obs_coef_wind (max_dom) = 0, ! nudging coefficient for wind, unit: s-1
1472 obs_nudge_temp (max_dom) = 0, ! set to = 1 to turn to nudge temperature (default = 0; off)
1473 obs_coef_temp (max_dom) = 0, ! nudging coefficient for temperature, unit: s-1
1474 obs_nudge_mois (max_dom) = 1 ! whether to nudge water vapor mixing ratio: (=0 off)
1475 obs_coef_mois (max_dom) = 0, ! nudging coefficient for water vapor mixing ratio, unit: s-1
1476 obs_nudge_pstr (max_dom) = 0 ! whether to nudge surface pressure (not used)
1477 obs_coef_pstr (max_dom) = 0. ! nudging coefficient for surface pressure, unit: s-1 (not used)
1478 obs_rinxy (max_dom) = 0. ! horizonal radius of influence in km
1479 obs_rinsig = 0 ! vertical radius of influence in eta
1480 obs_twindo (max_dom) = 0.66667 ! half-period time window over which an observation
1481 will be used for nudging (hours)
1482 obs_npfi = 0, ! freq in coarse grid timesteps for diagnostic prints
1483 obs_ionf (max_dom) = 2 ! freq in coarse grid timesteps for obs input and err calc
1484 obs_idynin = 0 ! for dynamic initialization using a ramp-down function to gradually
1485 turn off the FDDA before the pure forecast (=1 on)
1486 obs_dtramp = 0 ! time period in minutes over which the nudging is ramped down
1487 from one to zero.
1488 obs_prt_freq (max_dom) = 10, ! Frequency in obs index for diagnostic printout
1489 obs_prt_max = 1000, ! Maximum allowed obs entries in diagnostic printout
1490 obs_ipf_in4dob = .true. ! print obs input diagnostics (=.false. off)
1491 obs_ipf_errob = .true. ! print obs error diagnostics (=.false. off)
1492 obs_ipf_nudob = .true. ! print obs nudge diagnostics (=.false. off)
1493 obs_ipf_init = .true. ! Enable obs init warning messages
1495 obs_no_pbl_nudge_uv (max_dom) = 0 ! 1=no wind-nudging within pbl
1496 obs_no_pbl_nudge_t (max_dom) = 0 ! 1=no temperature-nudging within pbl
1497 obs_no_pbl_nudge_q (max_dom) = 0 ! 1=no moisture-nudging within pbl
1498 obs_sfc_scheme_horiz = 0 ! horizontal spreading scheme for surf obs;
1499 ; 0=wrf scheme, 1=original mm5 scheme
1500 obs_sfc_scheme_vert = 0 ! vertical spreading scheme for surf obs
1501 0=regime vif scheme, 1=original simple scheme
1502 obs_max_sndng_gap = 20 ! Max pressure gap between soundings, in cb
1503 obs_nudgezfullr1_uv = 50 ! Vert infl full weight height for lowest model level (LML) obs, regime 1, winds
1504 obs_nudgezrampr1_uv = 50 ! Vert infl ramp-to-zero height for LML obs, regime 1, winds
1505 obs_nudgezfullr2_uv = 50 ! Vert infl full weight height for LML obs, regime 2, winds
1506 obs_nudgezrampr2_uv = 50 ! Vert infl ramp-to-zero height for LML obs, regime 2, winds
1507 obs_nudgezfullr4_uv = -5000 ! Vert infl full weight height for LML obs, regime 4, winds
1508 obs_nudgezrampr4_uv = 50 ! Vert infl ramp-to-zero height for LML obs, regime 4, winds
1509 obs_nudgezfullr1_t = 50 ! Vert infl full weight height for LML obs, regime 1, temperature
1510 obs_nudgezrampr1_t = 50 ! Vert infl ramp-to-zero height for LML obs, regime 1, temperature
1511 obs_nudgezfullr2_t = 50 ! Vert infl full weight height for LML obs, regime 2, temperature
1512 obs_nudgezrampr2_t = 50 ! Vert infl ramp-to-zero height for LML obs, regime 2, temperature
1513 obs_nudgezfullr4_t = -5000 ! Vert infl full weight height for LML obs, regime 4, temperature
1514 obs_nudgezrampr4_t = 50 ! Vert infl ramp-to-zero height for LML obs, regime 4, temperature
1515 obs_nudgezfullr1_q = 50 ! Vert infl full weight height for LML obs, regime 1, moisture
1516 obs_nudgezrampr1_q = 50 ! Vert infl ramp-to-zero height for LML obs, regime 1, moisture
1517 obs_nudgezfullr2_q = 50 ! Vert infl full weight height for LML obs, regime 2, moisture
1518 obs_nudgezrampr2_q = 50 ! Vert infl ramp-to-zero height for LML obs, regime 2, moisture
1519 obs_nudgezfullr4_q = -5000 ! Vert infl full weight height for LML obs, regime 4, moisture
1520 obs_nudgezrampr4_q = 50 ! Vert infl ramp-to-zero height for LML obs, regime 4, moisture
1521 obs_nudgezfullmin = 50 ! Min depth through which vertical infl fcn remains 1.0
1522 obs_nudgezrampmin = 50 ! Min depth (m) through which vert infl fcn decreases from 1 to 0
1523 obs_nudgezmax = 3000 ! Max depth (m) in which vert infl function is nonzero
1524 obs_sfcfact = 1.0 ! Scale factor applied to time window for surface obs
1525 obs_sfcfacr = 1.0 ! Scale factor applied to horiz radius of influence for surface obs
1526 obs_dpsmx = 7.5 ! Max pressure change (cb) allowed within horiz radius of influence
1528 obs_scl_neg_qv_innov = 0 ! 1 = prevent to nudge toward negative QV
1529 /
1531 &scm
1532 scm_force = 1, ! switch for single column forcing (=0 off)
1533 scm_force_dx = 4000. ! DX for SCM forcing (in meters)
1534 num_force_layers = 8 ! number of SCM input forcing layers
1535 scm_lu_index = 2 ! SCM landuse category (2 is dryland, cropland and pasture)
1536 scm_isltyp = 4 ! SCM soil category (4 is silt loam)
1537 scm_vegfra = 0.5 ! SCM vegetation fraction
1538 scm_canwat = 0.0 ! SCM canopy water
1539 scm_lat = 36.605 ! SCM latitude
1540 scm_lon = -97.485 ! SCM longitude
1541 scm_th_adv = .true. ! turn on theta advection in SCM
1542 scm_wind_adv = .true. ! turn on wind advection in SCM
1543 scm_qv_adv = .true. ! turn on moisture advection in SCM
1544 scm_ql_adv = .true. ! turn on cloud liquid water advection in SCM
1545 scm_vert_adv = .true. ! turn on vertical advection in SCM
1546 num_force_soil_layers = 5, ! Number of SCM soil forcing layer
1547 scm_soilT_force = .false. ! Turn on soil temp forcing in SCM
1548 scm_soilq_force = .false. ! Turn on soil moisture forcing in SCM
1549 scm_force_th_largescale = .false. ! Turn on large scale theta forcing in SCM
1550 scm_force_qv_largescale = .false. ! Turn on large scale qv forcing in SCM
1551 scm_force_ql_largescale = .false. ! Turn on large scale cloud water forcing in SCM
1552 scm_force_wind_largescale = .false. ! Turn on large scale wind forcing in SCM
1554 &dynamics
1555 hybrid_opt = 2, ! default; Klemp cubic form with etac
1556 0 = original WRF terrain-following coordinate (through V3)
1557 etac = 0.2 ! znw(k) < etac, eta surfaces are isobaric, 0.2 is a good default (Pa/Pa)
1558 rk_ord = 3, ! time-integration scheme option:
1559 2 = Runge-Kutta 2nd order
1560 3 = Runge-Kutta 3rd order
1561 zadvect_implicit = 0, ! toggle off on [0/1] the IEVA scheme. Default off.
1562 w_crit_cfl = 1.2 ! default vertical courant number where vertical velocity damping begins (see below).
1563 ! when zadvect_implicit is on, value can be ~ 2.0
1564 zdamp (max_dom) = 5000., ! damping depth (m) from model top
1565 w_damping = 0, ! vertical velocity damping flag (for operational use)
1566 0 = without damping
1567 1 = with damping
1568 diff_opt(max_dom) = 0, ! turbulence and mixing option:
1569 0 = no turbulence or explicit
1570 spatial numerical filters (km_opt IS IGNORED).
1571 1 = evaluates 2nd order
1572 diffusion term on coordinate surfaces.
1573 uses kvdif for vertical diff unless PBL option
1574 is used. may be used with km_opt = 1 and 4.
1575 (= 1, recommended for real-data cases)
1576 2 = evaluates mixing terms in
1577 physical space (stress form) (x,y,z).
1578 turbulence parameterization is chosen
1579 by specifying km_opt.
1580 km_opt(max_dom) = 1, ! eddy coefficient option
1581 1 = constant (use khdif kvdif)
1582 2 = 1.5 order TKE closure (3D)
1583 3 = Smagorinsky first order closure (3D)
1584 Note: option 2 and 3 are not recommended for DX > 2 km
1585 4 = horizontal Smagorinsky first order closure
1586 (recommended for real-data cases)
1587 5 = SMS-3DTKE scale-adaptive LES/PBL scheme. It must be
1588 used with diff_opt = 2. PBL schemes must be turned off
1589 (bl_pbl_physics=0). It can work with sf_sfclay_physics = 1, 5, 91.
1590 damp_opt = 0, ! upper level damping flag
1591 0 = without damping
1592 1 = with diffusive damping, maybe used for real-data cases
1593 (dampcoef nondimensional ~0.01-0.1)
1594 2 = with Rayleigh damping (dampcoef inverse time scale [1/s] e.g. .003; idealized case only
1595 not for real-data cases)
1596 3 = with w-Rayleigh damping (dampcoef inverse time scale [1/s] e.g. .2;
1597 for real-data cases)
1598 use_theta_m = 1 ! 1: use theta_m=theta(1+1.61Qv)
1599 0: use dry theta in dynamics
1600 use_q_diabatic = 0 ! whether to include QV and QC tendencies in advection
1601 0 = default, old behavior
1602 1 = include QV and QC tendencies - this helps to produce correct solution
1603 in an idealized 'moist benchmark' test case (Bryan, 2014).
1604 In real data testing, time step needs to be reduce to maintain stable solution
1605 c_s (max_dom) = 0.25 ! Smagorinsky coeff
1606 c_k (max_dom) = 0.15 ! TKE coeff
1607 diff_6th_opt (max_dom) = 0, ! 6th-order numerical diffusion
1608 0 = no 6th-order diffusion (default)
1609 1 = 6th-order numerical diffusion (not recommended)
1610 2 = 6th-order numerical diffusion but prohibit up-gradient diffusion
1611 diff_6th_factor (max_dom) = 0.12, ! 6th-order numerical diffusion non-dimensional rate (max value 1.0
1612 corresponds to complete removal of 2dx wave in one timestep)
1613 diff_6th_slopeopt (max_dom) = 0 ! if set to =1, turns on 6th-order numerical diffusion - terrain-slope tapering. default is 0=off
1614 diff_6th_thresh (max_dom) = 0.10 ! slope threshold (m/m) that turns off 6th order diff in steep terrain
1615 dampcoef (max_dom) = 0., ! damping coefficient (see above)
1616 base_temp = 290., ! real-data, em ONLY, base sea-level temp (K)
1617 base_pres = 10^5 ! real-data, em ONLY, base sea-level pres (Pa), DO NOT CHANGE
1618 base_lapse = 50., ! real-data, em ONLY, lapse rate (K), DO NOT CHANGE
1619 iso_temp = 200., ! real-data, em ONLY, reference temp in stratosphere, US Standard atmosphere 216.5 K
1620 base_pres_strat = 0. ! real-data, em ONLY, base state pressure (Pa) at bottom of the stratosphere,
1621 US Standard atmosphere 55 hPa
1622 base_lapse_strat = -11. ! real-data, em ONLY, base state lapse rate ( dT / d(lnP) ) in stratosphere,
1623 approx to US Standard atmosphere -12 K
1624 use_baseparam_fr_nml = .f., ! whether to use base state parameters from the namelist
1625 use_input_w = .f., ! whether to use vertical velocity from input file
1626 khdif (max_dom) = 0, ; horizontal diffusion constant (m^2/s). A typical value should be 0.1*DX in meters.
1627 kvdif (max_dom) = 0, ! vertical diffusion constant (m^2/s). A typical value should be 100.
1628 smdiv (max_dom) = 0.1, ! divergence damping (0.1 is typical)
1629 emdiv (max_dom) = 0.01, ! external-mode filter coef for mass coordinate model
1630 (0.01 is typical for real-data cases)
1631 epssm (max_dom) = .1, ! time off-centering for vertical sound waves
1632 non_hydrostatic (max_dom) = .true., ! whether running the model in hydrostatic or non-hydro mode
1633 pert_coriolis (max_dom) = .false., ! Coriolis only acts on wind perturbation (idealized)
1634 top_lid (max_dom) = .false., ! Zero vertical motion at top of domain
1635 mix_full_fields(max_dom) = .true., ! used with diff_opt = 2; value of ".true." is recommended, except for
1636 highly idealized numerical tests; damp_opt must not be 1 if ".true."
1637 is chosen. .false. means subtract 1-d base-state profile before mixing
1638 mix_isotropic(max_dom) = 0 ! 0=anisotropic vertical/horizontal diffusion coeffs, 1=isotropic
1639 mix_upper_bound(max_dom) = 0.1 ! non-dimensional upper limit for diffusion coeffs
1640 tke_drag_coefficient(max_dom) = 0., ! surface drag coefficient (Cd, dimensionless) for diff_opt=2 only
1641 tke_heat_flux(max_dom) = 0., ! surface thermal flux (H/(rho*cp), K m/s) for diff_opt=2 only
1642 h_mom_adv_order (max_dom) = 5, ! horizontal momentum advection order (5=5th, etc.)
1643 v_mom_adv_order (max_dom) = 3, ! vertical momentum advection order
1644 h_sca_adv_order (max_dom) = 5, ! horizontal scalar advection order
1645 v_sca_adv_order (max_dom) = 3, ! vertical scalar advection order
1647 momentum_adv_opt(max_dom) = 1, ! advection options for momentum variables:
1648 1=original, 3 = 5th-order WENO
1649 advection options for scalar variables: 0=simple, 1=positive definite,
1650 2=monotonic, 3=5th order WENO, 4=5th-order WENO with positive definite filter
1651 moist_adv_opt (max_dom) = 1 ! for moisture
1652 moist_adv_dfi_opt (max_dom) = 0 ! positive-definite RK3 transport switch. Default is 0=off
1653 scalar_adv_opt (max_dom) = 1 ! for scalars
1654 chem_adv_opt (max_dom) = 1 ! for chem variables
1655 tracer_adv_opt (max_dom) = 1 ! for tracer variables (WRF-Chem activated)
1656 tke_adv_opt (max_dom) = 1 ! for tke
1657 phi_adv_z (max_dom) = 1 ! vertical advection option for geopotential; 1: original (default) 2: avoid double staggering of omega
1658 moist_mix2_off (max_dom) = .false. ! if set to T, deactivate 2nd-order horizontal mixing for moisture. default is F.
1659 chem_mix2_off (max_dom) = .false. ! if set to T, deactivate 2nd-order horizontal mixing for chem species. default is F.
1660 tracer_mix2_off (max_dom) = .false. ! if set to T, deactivate 2nd-order horizontal mixing for tracers. default is F.
1661 scalar_mix2_off (max_dom) = .false. ! if set to T, deactivate 2nd-order horizontal mixing for scalars. default is F.
1662 tke_mix2_off (max_dom) = .false. ! if set to T, deactivate 2nd-order horizontal mixing for tke. default is F.
1663 moist_mix6_off (max_dom) = .false. ! if set to T, deactivate 6th-order horizontal mixing for moisture. default is F.
1664 chem_mix6_off (max_dom) = .false. ! if set to T, deactivate 6th-order horizontal mixing for chem species. default is F.
1665 tracer_mix6_off (max_dom) = .false. ! if set to T, deactivate 6th-order horizontal mixing for tracers. default is F.
1666 scalar_mix6_off (max_dom) = .false. ! if set to T, deactivate 6th-order horizontal mixing for scalars. default is F.
1667 tke_mix6_off (max_dom) = .false. ! if set to T, deactivate 6th-order horizontal mixing for tke. default is F.
1670 time_step_sound (max_dom) = 4 / ! number of sound steps per time-step (0=set automatically)
1671 (if using a time_step much larger than 6*dx (in km),
1672 proportionally increase number of sound steps - also
1673 best to use even numbers)
1674 do_avgflx_em (max_dom) = 0, ! whether to output time-averaged mass-coupled advective velocities
1675 0 = no (default)
1676 1 = yes
1677 do_avgflx_cugd (max_dom) = 0, ! whether to output time-averaged convective mass-fluxes from Grell-Devenyi ensemble scheme
1678 0 = no (default)
1679 1 = yes (only takes effect if do_avgflx_em=1 and cu_physics= 93
1680 do_coriolis (max_dom) = .true., ! whether to do Coriolis calculations (idealized) (inactive)
1681 do_curvature (max_dom) = .true., ! whether to do curvature calculations (idealized) (inactive)
1682 do_gradp (max_dom) = .true., ! whether to do horizontal pressure gradient calculations (idealized) (inactive)
1683 fft_filter_lat = 91. ! the latitude above which the polar filter is turned on (degrees) - 45 degrees is a
1684 reasonable latitude to start using polar filters
1685 coupled_filtering = .true. ! T/F mu coupled scalar arrays are run through the polar filters
1686 pos_def = .false. ! T/F remove negative values of scalar arrays by setting minimum value to zero
1687 swap_pole_with_next_j = .false. ! T/F replace the entire j=1 (jds-1) with the values from j=2 (jds-2)
1688 actual_distance_average = .false. ! T/F average the field at each i location in the j-loop with a number of grid points based on a map-factor ratio
1689 gwd_opt (max_dom) = 0 ! for running without gravity wave drag
1690 = 1 ; for running with gravity wave drag (Choi and Hong 2015)
1691 = 3 ; NOAA/GSL gravity wave drag and turbulent orographic form drag
1692 gwd_diags = 0 ; set to 1 to output diagnostics for gwd_opt = 3
1693 sfs_opt (max_dom) = 0 ! nonlinear backscatter and anisotropy (NBA) off
1694 = 1 ! NBA1 using diagnostic stress terms (km_opt=2,3 for scalars)
1695 = 2 ! NBA2 using tke-based stress terms (km_opt=2 needed)
1696 m_opt (max_dom) = 0 ! no added output
1697 = 1 ! adds output of Mij stress terms when NBA is not used
1698 tracer_opt(max_dom) = 0 ! whether to turn on tracers
1699 rad_nudge = 1 ! nudge T to initial values in idealized tropical cyclone case
1701 &bdy_control
1702 spec_bdy_width = 5, ! total number of rows for specified boundary value nudging
1703 spec_zone = 1, ! number of points in specified zone (spec b.c. option)
1704 relax_zone = 4, ! number of points in relaxation zone (spec b.c. option)
1705 specified (max_dom) = .false., ! specified boundary conditions (only can be used for domain 1)
1706 the above 4 are used for real-data runs
1707 spec_exp = 0. ! exponential multiplier for relaxation zone ramp for specified=.t.
1708 (0.=linear ramp default, e.g. 0.33=~3*dx exp decay factor)
1709 constant_bc = .false. ! constant boundary condition used with DFI
1711 periodic_x (max_dom) = .false., ! periodic boundary conditions in x direction
1712 symmetric_xs (max_dom) = .false., ! symmetric boundary conditions at x start (west)
1713 symmetric_xe (max_dom) = .false., ! symmetric boundary conditions at x end (east)
1714 open_xs (max_dom) = .false., ! open boundary conditions at x start (west)
1715 open_xe (max_dom) = .false., ! open boundary conditions at x end (east)
1716 periodic_y (max_dom) = .false., ! periodic boundary conditions in y direction
1717 symmetric_ys (max_dom) = .false., ! symmetric boundary conditions at y start (south)
1718 symmetric_ye (max_dom) = .false., ! symmetric boundary conditions at y end (north)
1719 open_ys (max_dom) = .false., ! open boundary conditions at y start (south)
1720 open_ye (max_dom) = .false., ! open boundary conditions at y end (north)
1721 nested (max_dom) = .false., ! nested boundary conditions (must be used for nests)
1722 polar (max_dom) = .false., ! polar boundary condition
1723 (v=0 at polarward-most v-point)
1724 have_bcs_moist (max_dom) = .false., ! model run after ndown only: do not use microphysics variables in bdy file
1725 = .true. , ! use microphysics variables in bdy file
1726 have_bcs_scalar (max_dom) = .false., ! model run after ndown only: do not use scalar variables in bdy file
1727 = .true. , ! use scalar variables in bdy file
1728 multi_bdy_files = .false., ! F=default; T=model will run with split and individually named LBC files
1729 requires usage of bdy_inname = "wrfbdy_d<domain>_<date>"
1730 the real program can generate all LBC files in a single run
1731 only a single time period is in each separate LBC file
1733 &ideal
1734 ideal_case = 0 ! ideal case number. Option selects CASEs within module_initialize_ideal.F
1735 realcase ideal_case=0
1736 hill2d_x ideal_case=1
1737 quarter_ss ideal_case=2
1738 convrad ideal_case=3
1739 squall2d_x ideal_case=4
1740 squall2d_y ideal_case=5
1741 grav2d_x ideal_case=6
1742 b_wave ideal_case=7
1743 seabreeze2d_x ideal_case=8
1744 les ideal_case=9
1746 &tc ; controls for tc_em.exe ONLY, no impact on real, ndown, or model
1748 insert_bogus_storm = .false. ! T/F for inserting a bogus tropical storm (TC)
1749 remove_storm = .false. ! T/F for only removing the original TC
1750 num_storm = 1 ! Number of bogus TC
1751 latc_loc = -999. ! center latitude of the bogus TC
1752 lonc_loc = -999. ! center longitude of the bogus TC
1753 vmax_meters_per_second(max_bogus) = -999. ! vmax of bogus storm in meters per second
1754 rmax = -999. ! maximum radius outward from storm center
1755 vmax_ratio(max_bogus) = -999. ! ratio for representative maximum winds, 0.75 for 45 km grid, and
1756 0.9 for 15 km grid.
1757 rankine_lid = -999. ! top pressure limit for the tc bogus scheme
1759 &namelist_quilt This namelist record controls asynchronized I/O for MPI applications.
1761 nio_tasks_per_group = 0, ! default value is 0: no quilting; > 0 quilting I/O
1762 nio_groups = 1, ! default 1. May be set to higher value for nesting IO
1763 or history and restart IO
1766 &grib2:
1767 background_proc_id = 255, ! Background generating process identifier, typically defined
1768 by the originating center to identify the background data that
1769 was used in creating the data. This is octet 13 of Section 4
1770 in the grib2 message
1771 forecast_proc_id = 255, ! Analysis or generating forecast process identifier, typically
1772 defined by the originating center to identify the forecast process
1773 that was used to generate the data. This is octet 14 of Section
1774 4 in the grib2 message
1775 production_status = 255, ! Production status of processed data in the grib2 message.
1776 See Code Table 1.3 of the grib2 manual. This is octet 20 of
1777 Section 1 in the grib2 record
1778 compression = 40, ! The compression method to encode the output grib2 message.
1779 Only 40 for jpeg2000 or 41 for PNG are supported
1782 By default the pressure and height level data goes into stream 23 and 22, respectively. Using
1783 the vertical interpolation options requires the user to define an io_form and interval for
1784 the requested stream. See examples.namelist.
1786 &diags:
1787 p_lev_diags = 1, ! Vertically interpolate diagnostics to p-levels
1788 0=NO, 1=YES
1789 num_press_levels = 0, ! Number of pressure levels to interpolate to, for example,
1790 could be 2
1791 press_levels = 0, ! Which pressure levels (Pa) to interpolate to, for example
1792 could be 85000, 70000
1793 use_tot_or_hyd_p = 2 ! Which half level pressure to use: 1=total (p+pb); 2=hydrostatic
1794 (p_hyd). The p_hyd option is the default and less noisy. Total
1795 pressure is consistent with what is done in various post-proc
1796 packages.
1797 z_lev_diags = 0, ! Vertically interpolate diagnostics to z-levels
1798 0=NO, 1=YES
1799 num_z_levels = 2, ! Number of height levels to interpolate to
1800 z_levels = 0, ! List of height values (m) to interpolate data to.
1801 Positive numbers are for height above mean sea level (i.e. a flight level)
1802 Negative numbers are for levels above ground
1803 /
1805 AFWA diagnostics:
1806 &afwa
1807 afwa_diag_opt (max_dom) = 0, ! AFWA Diagnostic option, 1: on
1808 afwa_ptype_opt (max_dom) = 0, ! Precip type option, 1: on
1809 afwa_vil_opt (max_dom) = 0, ! Vert Int Liquid option, 1: on
1810 afwa_radar_opt (max_dom) = 0, ! Radar option, 1: on
1811 afwa_severe_opt (max_dom) = 0, ! Severe Wx option, 1: on
1812 afwa_icing_opt (max_dom) = 0, ! Icing option, 1: on
1813 afwa_vis_opt (max_dom) = 0, ! Visibility option, 1: on
1814 afwa_cloud_opt (max_dom) = 0, ! Cloud option, 1: on
1815 afwa_therm_opt (max_dom) = 0, ! Thermal indices option, 1: on
1816 afwa_turb_opt (max_dom) = 0, ! Turbulence option, 1: on
1817 afwa_buoy_opt (max_dom) = 0, ! Buoyancy option, 1: on
1818 afwa_ptype_ccn_tmp = 264.15, ! CCN temperature for precipitation type calculation
1819 afwa_ptype_tot_melt = 50, ! Total melting energy for precipitation type calculation
1824 Add an extra set of 3d arrays for vertical interpolation to the
1825 processing for the real program. Typically, this extra data set
1826 is to include monthly aerosol data. The vertical coordinate of the
1827 aerosol data is able to be separate from the input meteorological
1828 data. To introduce new data sets, mods are required in the Registry
1829 and in module_initialize_real.F. There is a space-holder/practice
1830 set-up for "GCA". The actual data set for Thompson mp=28 (WIF) that
1831 utilizes QNWFA and QNIFA (water and ice friendly aerosols) has
1832 been tested.
1834 &domains
1835 num_wif_levels = 30
1836 wif_input_opt = 1
1837 /
1838 num_gca_levels = 13
1839 gca_input_opt = 1
1842 physics suite specification, which specifies physics options
1844 mp_physics
1845 cu_physics
1846 ra_lw_physics
1847 ra_sw_physics
1848 bl_pbl_physics
1849 sf_sfclay_physics
1850 sf_surface_physics
1852 with a new namelist physics_suite = 'X'. Two suites are available:
1854 physics_suite = 'CONUS'
1856 or
1858 physics_suite = 'tropical'
1860 where 'CONUS' is equivalent to
1862 mp_physics = 8,
1863 cu_physics = 6,
1864 ra_lw_physics = 4,
1865 ra_sw_physics = 4,
1866 bl_pbl_physics = 2,
1867 sf_sfclay_physics = 2,
1868 sf_surface_physics = 2,
1870 and 'tropical' is equivalent to
1872 mp_physics = 6,
1873 cu_physics = 16,
1874 ra_lw_physics = 4,
1875 ra_sw_physics = 4,
1876 bl_pbl_physics = 1,
1877 sf_sfclay_physics = 91,
1878 sf_surface_physics = 2,
1880 One can use physics_suite, and overwrite one or more options by explicitly including the physics
1881 namelists.
1883 To overwrite an option for a nest, one can have
1885 &physics
1886 physics_suite = 'tropical'
1887 cu_physics = -1, -1, 0,
1888 ...
1890 here '-1' means to use option specified by the suite, and '0' modifies the cumulus option from the
1891 suite option 16 to 0 (turning cumulus off).
1894 Hybrid Vertical Coordinate (HVC) vs Terrain Following (TF)
1896 1. To turn ON the HVC
1897 &dynamics
1898 hybrid_opt = 2,
1900 2. To turn OFF the HVC
1901 &dynamics
1902 hybrid_opt = 0,
1906 Traditional / full fields model output
1908 The WRF model output may be modified at run-time to also include a stream that contains
1909 more traditional fields: temperature, pressure, geopotential height, etc. The flag needs to
1910 be activated in the namelist (diag_nwp2 = 1). In the registry.trad_fields, the output stream
1911 is "h1", so that stream needs to be explicitly requested in the namelist.input file.
1913 &diags
1914 diag_nwp2 = 1
1915 /
1917 &time_control
1918 io_form_auxhist1 = 2
1919 auxhist1_interval = 180, 30, 30,
1920 frames_per_auxhist1 = 1, 1, 1,
1921 auxhist1_outname = "wrf_trad_fields_d<domain>_<date>"
1922 /
1926 Solar diagnostics output
1928 For solar diagnostics, 2-D fields of variables relevant to solar forecasting are output
1929 when option solar_diagnostics is activated in diags section of namelist, as shown below.
1930 Also, if tslist is present when solar_diagnostics is activated, then these same variables
1931 are output to the time series files for the location(s) specified in tslist (see README.tslist).
1932 All variables are calculated in phys/module_diag_solar.F and defined in registry.solar_fields
1934 &diags
1935 solar_diagnostics = 1
1936 /