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README.namelist

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1	Description of namelist variables
2	---------------------------------
3
4	For WRF-NMM users, please see Chapter 5 of the WRF-NMM User's Guide for
5	information on NMM specific settings (http://www.dtcenter.org/wrf-nmm/users)
6
7
8	Note: variables followed by (max_dom) indicate that this variable needs to
9	be defined for the nests when max_dom > 1.
10
11	&time_control
12	run_days = 1, ; run time in days
13	run_hours = 0, ; run time in hours
14	Note: if it is more than 1 day, one may use both run_days and run_hours
15	or just run_hours. e.g. if the total run length is 36 hrs, you may
16	set run_days = 1, and run_hours = 12, or run_days = 0, and run_hours = 36
17	run_minutes = 0, ; run time in minutes
18	run_seconds = 0, ; run time in seconds
19	start_year (max_dom) = 2001, ; four digit year of starting time
20	start_month (max_dom) = 06, ; two digit month of starting time
21	start_day (max_dom) = 11, ; two digit day of starting time
22	start_hour (max_dom) = 12, ; two digit hour of starting time
23	start_minute (max_dom) = 00, ; two digit minute of starting time
24	start_second (max_dom) = 00, ; two digit second of starting time
25	Note: the start time is used to name the first wrfout file.
26	It also controls the start time for nest domains, and the time to restart
27	tstart (max_dom) = 00, ; FOR NMM: starting hour of the forecast
28	end_year (max_dom) = 2001, ; four digit year of ending time
29	end_month (max_dom) = 06, ; two digit month of ending time
30	end_day (max_dom) = 12, ; two digit day of ending time
31	end_hour (max_dom) = 12, ; two digit hour of ending time
32	end_minute (max_dom) = 00, ; two digit minute of ending time
33	end_second (max_dom) = 00, ; two digit second of ending time
34	It also controls when the nest domain integrations end
35	All start and end times are used by real.exe.
36
37	Note that one may use either run_days/run_hours etc. or
38	end_year/month/day/hour etc. to control the length of
39	model integration. But run_days/run_hours
40	takes precedence over the end times.
41	Program real.exe uses start and end times only.
42
43	interval_seconds = 10800, ; time interval between incoming real data, which will be the interval
44	between the lateral boundary condition file
45	input_from_file (max_dom) = T, ; whether nested run will have input files for domains other than 1
46	fine_input_stream (max_dom) = 0, ; field selection from nest input for its initialization
47	0: all fields are used; 2: only static and time-varying, masked land
48	surface fields are used. In V3.2, this requires the use of
49	io_form_auxinput2
50	history_interval (max_dom) = 60, ; history output file interval in minutes
51	frames_per_outfile (max_dom) = 1, ; number of output times per history output file,
52	used to split output into multiple files
53	into smaller pieces
54	restart = F, ; whether this run is a restart run
55	cycling = F, ; whether this run is a cycling run, if so, initializes look-up table for Thompson schemes only
56	restart_interval = 1440, ; restart output file interval in minutes
57	reset_simulation_start = F, ; whether to overwrite simulation_start_date with forecast start time
58	io_form_history = 2, ; 2 = netCDF
59	io_form_restart = 2, ; 2 = netCDF
60	io_form_input = 2, ; 2 = netCDF
61	io_form_boundary = 2, ; netCDF format
62	= 4, ; PHD5 format
63	= 5, ; GRIB1 format
64	= 10, ; GRIB2 format
65	= 11, ; pnetCDF format
66	frames_per_emissfile = 12, ; number of times in each chemistry emission file.
67	io_style_emiss = 1, ; style to use for the chemistry emission files.
68	; 0 = Do not read emissions from files.
69	; 1 = Cycle between two 12 hour files (set frames_per_emissfile=12)
70	; 2 = Dated files with length set by frames_per_emissfile
71	debug_level = 0, ; 50,100,200,300 values give increasing prints
72	diag_print = 0, ; print out time series of model diagnostics
73	; 0 = no print
74	; 1 = no print
75	all_ic_times = .false., ; whether to write out wrfinput for all processing times
76	adjust_output_times = .false., ; adjust output times to the nearest hour
77
78	To choose between SI and WPS input to real for EM core:
79	auxinput1_inname = "met_em.d<domain>.<date>" ; Input to real from WPS (default since 3.0)
80	= "wrf_real_input_em.d<domain>.<date>" ; Input to real from SI
81
82	To choose between SI and WPS input to real for NMM core:
83	auxinput1_inname = "met_nm.d<domain>.<date>" ; Input to real from WPS
84	= "wrf_real_input_nm.d<domain>.<date>" ; Input to real from SI
85
86	Other output options:
87
88	auxhist2_outname = "rainfall" ; file name for extra output; if not specified,
89	auxhist2_d<domain>_<date> will be used
90	also note that to write variables in output other
91	than the history file requires Registry.EM file change
92	auxhist2_interval (max_dom) = 10, ; interval in minutes
93	io_form_auxhist2 = 2, ; output in netCDF
94	frames_per_auxhist2 = 1000, ; number of output times in this file
95
96	For SST updating (used only with sst_update=1):
97
98	auxinput4_inname = "wrflowinp_d<domain>"
99	auxinput4_interval = 360 ; minutes generally matches time given by interval_seconds
100	io_form_auxinput4 = 2 ; IO format, required in V3.2
101
102	Options for run-time IO:
103
104	iofields_filename (max_dom) = "my_iofields_list.txt",
105	(example: +:h:21:rainc, rainnc, rthcuten)
106	ignore_iofields_warning = .true., ; what to do when encountering an error in the user-specified files
107	.false., : abort when encountering an error in iofields_filename file
108
109	Additional settings when running WRFVAR:
110
111	write_input = t, ; write input-formatted data as output
112	inputout_interval = 180, ; interval in minutes when writing input-formatted data
113	input_outname = 'wrfinput_d<domain>_<date>' ; you may change the output file name
114	inputout_begin_y = 0
115	inputout_begin_mo = 0
116	inputout_begin_d = 0
117	inputout_begin_h = 3
118	inputout_begin_m = 0
119	inputout_begin_s = 0
120	inputout_end_y = 0
121	inputout_end_mo = 0
122	inputout_end_d = 0
123	inputout_end_h = 12
124	inputout_end_m = 0
125	inputout_end_s = 0 ; the above shows that the input-formatted data are output
126	starting from hour 3 to hour 12 in 180 min interval.
127
128	&domains
129	time_step = 60, ; time step for integration in integer seconds
130	recommend 6*dx (in km) for typical real-data cases
131	time_step_fract_num = 0, ; numerator for fractional time step
132	time_step_fract_den = 1, ; denominator for fractional time step
133	Example, if you want to use 60.3 sec as your time step,
134	set time_step = 60, time_step_fract_num = 3, and
135	time_step_fract_den = 10
136	time_step_dfi = 60, ; time step for DFI, may be different from regular time_step
137	max_dom = 1, ; number of domains - set it to > 1 if it is a nested run
138	s_we (max_dom) = 1, ; start index in x (west-east) direction (leave as is)
139	e_we (max_dom) = 91, ; end index in x (west-east) direction (staggered dimension)
140	s_sn (max_dom) = 1, ; start index in y (south-north) direction (leave as is)
141	e_sn (max_dom) = 82, ; end index in y (south-north) direction (staggered dimension)
142	s_vert (max_dom) = 1, ; start index in z (vertical) direction (leave as is)
143	e_vert (max_dom) = 28, ; end index in z (vertical) direction (staggered dimension)
144	Note: this refers to full levels including surface and top
145	vertical dimensions need to be the same for all nests
146	Note: most variables are unstaggered (= staggered dim - 1)
147	dx (max_dom) = 10000, ; grid length in x direction; ARW: unit in meters, NMM: unit in degrees (e.g. 0.667)
148	dy (max_dom) = 10000, ; grid length in y direction; ARW: unit in meters, NMM: unit in degrees (e.g. 0.0658)
149	ztop (max_dom) = 19000. ; used in mass model for idealized cases
150	grid_id (max_dom) = 1, ; domain identifier
151	parent_id (max_dom) = 0, ; id of the parent domain
152	i_parent_start (max_dom) = 0, ; starting LLC I-indices from the parent domain
153	j_parent_start (max_dom) = 0, ; starting LLC J-indices from the parent domain
154	parent_grid_ratio (max_dom) = 1, ; parent-to-nest domain grid size ratio: for real-data cases
155	the ratio has to be odd; for idealized cases,
156	the ratio can be even if feedback is set to 0. (NMM: must be 3)
157	parent_time_step_ratio (max_dom) = 1, ; parent-to-nest time step ratio; it can be different
158	from the parent_grid_ratio (NMM: must be 3)
159	feedback = 1, ; feedback from nest to its parent domain; 0 = no feedback
160	smooth_option = 0 ; smoothing option for parent domain, used only with feedback
161	option on. 0: no smoothing; 1: 1-2-1 smoothing; 2: smoothing-desmoothing
162
163	Namelist variables specifically for the WPS input for real:
164
165	num_metgrid_soil_levels = 4 ; number of vertical soil levels or layers input
166	; from WPS metgrid program
167	num_metgrid_levels = 27 ; number of vertical levels of 3d meteorological fields coming
168	; from WPS metgrid program
169	interp_type = 2 ; vertical interpolation
170	; 1 = linear in pressure
171	; 2 = linear in log(pressure)
172	extrap_type = 2 ; vertical extrapolation of non-temperature fields
173	; 1 = extrapolate using the two lowest levels
174	; 2 = use lowest level as constant below ground
175	t_extrap_type = 2 ; vertical extrapolation for potential temperature
176	; 1 = isothermal
177	; 2 = -6.5 K/km lapse rate for temperature
178	; 3 = constant theta
179	use_levels_below_ground = .true. ; in vertical interpolation, use levels below input surface level
180	; T = use input isobaric levels below input surface
181	; F = extrapolate when WRF location is below input surface value
182	use_surface = .true. ; use the input surface level data in the vertical interp and extrap
183	; T = use the input surface data
184	; F = do not use the input surface data
185	lagrange_order = 1 ; vertical interpolation order
186	; 1 = linear
187	; 2 = quadratic
188	zap_close_levels = 500 ; ignore isobaric level above surface if delta p (Pa) < zap_close_levels
189	lowest_lev_from_sfc = .false. ; place the surface value into the lowest eta location
190	; T = use surface value as lowest eta (u,v,t,q)
191	; F = use traditional interpolation
192	force_sfc_in_vinterp = 1 ; use the surface level as the lower boundary when interpolating
193	; through this many eta levels
194	; 0 = perform traditional trapping interpolation
195	; n = first n eta levels directly use surface level
196	sfcp_to_sfcp = .false. ; Optional method to compute model's surface pressure when incoming
197	; data only has surface pressure and terrain, but not SLP
198	smooth_cg_topo = .false. ; Smooth the outer rows and columns of domain 1's topography w.r.t.
199	; the input data
200	use_tavg_for_tsk = .false. ; whether to use diurnally averaged surface temp as skin temp. The
201	diurnall averaged surface temp can be computed using WPS utility
202	avg_tsfc.exe. May use this option when SKINTEMP is not present.
203	aggregate_lu = .false. ; whetger to aggregate the grass, shrubs, trees in dominant landuse;
204	default is false.
205	rh2qv_wrt_liquid = .true., ; whether to compute RH with respect to water (true) or ice (false)
206	rh2qv_method = 1, ; which methed to use to computer mixing ratio from RH:
207	default is option 1, the old MM5 method; option 2 uses a WMO
208	recommended method (WMO-No. 49, corrigendum, August 2000) -
209	there is a difference between the two methods though small
210	p_top_requested = 5000 ; p_top (Pa) to use in the model
211	ptsgm = 42000. ; FOR NMM: defines the pressure interface dividing
212	; the terrain following portion of the hybrid vertical
213	; coordinate (p > ptsgm) and the purely
214	; isobaric portion of the vertical coordinate (p < ptsgm)
215	vert_refine_fact = 1 ; vertical refinement factor for ndown
216
217	Users may explicitly define full eta levels. Given are two distributions for 28 and 35 levels. The number
218	of levels must agree with the number of eta surfaces allocated (e_vert). Users may alternatively request
219	only the number of levels (with e_vert), and the real program will compute values. The computation assumes
220	a known first several layers, then generates equi-height spaced levels up to the top of the model.
221
222	eta_levels = 1.000, 0.990, 0.978, 0.964, 0.946,
223	0.922, 0.894, 0.860, 0.817, 0.766,
224	0.707, 0.644, 0.576, 0.507, 0.444,
225	0.380, 0.324, 0.273, 0.228, 0.188,
226	0.152, 0.121, 0.093, 0.069, 0.048,
227	0.029, 0.014, 0.000,
228	eta_levels = 1.000, 0.993, 0.983, 0.970, 0.954,
229	0.934, 0.909, 0.880, 0.845, 0.807,
230	0.765, 0.719, 0.672, 0.622, 0.571,
231	0.520, 0.468, 0.420, 0.376, 0.335,
232	0.298, 0.263, 0.231, 0.202, 0.175,
233	0.150, 0.127, 0.106, 0.088, 0.070,
234	0.055, 0.040, 0.026, 0.013, 0.000
235
236	Namelist variables for controling the specified moving nest:
237	Note that this moving nest option needs to be activated at the compile time by adding -DMOVE_NESTS
238	to the ARCHFLAGS. The maximum number of moves, max_moves, is set to 50
239	but can be modified in source code file frame/module_driver_constants.F.
240	num_moves = 4 ; total number of moves
241	move_id(max_moves) = 2,2,2,2, ; a list of nest domain id's, one per move
242	move_interval(max_moves) = 60,120,150,180, ; time in minutes since the start of this domain
243	move_cd_x(max_moves) = 1,1,0,-1,; the number of parent domain grid cells to move in i direction
244	move_cd_y(max_moves) = 1,0,-1,1,; the number of parent domain grid cells to move in j direction
245	positive is to move in increasing i and j direction, and
246	negative is to move in decreasing i and j direction.
247	0 means no move. The limitation now is to move only 1 grid cell
248	at each move.
249
250	Namelist variables for controling the automatic moving nest:
251	Note that this moving nest option needs to be activated at the compile time by adding -DMOVE_NESTS
252	and -DVORTEX_CENTER to the ARCHFLAGS. This option uses an mid-level vortex following algorthm to
253	determine the nest move. This option is experimental.
254	vortex_interval(max_dom) = 15 ; how often the new vortex position is computed
255	max_vortex_speed(max_dom) = 40 ; used to compute the search radius for the new vortex position
256	corral_dist(max_dom) = 8 ; how many coarse grid cells the moving nest is allowed to get
257	near the mother domain boundary
258	track_level = 50000 ; pressure value in Pa where the vortex is tracked
259	time_to_move(max_dom) = 0. ; time (in minutes) to start the moving nests
260
261	tile_sz_x = 0, ; number of points in tile x direction
262	tile_sz_y = 0, ; number of points in tile y direction
263	can be determined automatically
264	numtiles = 1, ; number of tiles per patch (alternative to above two items)
265	nproc_x = -1, ; number of processors in x for decomposition
266	nproc_y = -1, ; number of processors in y for decomposition
267	-1: code will do automatic decomposition
268	>1: for both: will be used for decomposition
269
270	Namelist variables for controlling the adaptive time step option:
271	These options are only valid for the ARW core.
272	use_adaptive_time_step = .false. ; T/F use adaptive time stepping, ARW only
273	step_to_output_time = .true. ; if adaptive time stepping, T/F modify the
274	time steps so that the exact history time is reached
275	target_cfl(max_dom) = 1.2,1.2 ; vertical and horizontal CFL <= to this value implies
276	no reason to reduce the time step, and to increase it
277	target_hcfl(max_dom) = .84,.84 ; horizontal CFL <= to this value implies
278	max_step_increase_pct(max_dom) = 5,51 ; percentage of previous time step to increase, if the
279	max(vert cfl, horiz cfl) <= target_cfl, then the time
280	will increase by max_step_increase_pct. Use something
281	large for nests (51% suggested)
282	starting_time_step(max_dom) = -1,-1 ; flag = -1 implies use 6 * dx (defined in start_em),
283	starting_time_step = 100 means the starting time step
284	for the coarse grid is 100 s
285	max_time_step(max_dom) = -1,-1 ; flag = -1 implies max time step is 3 * starting_time_step,
286	max_time_step = 100 means that the time step will not
287	exceed 100 s
288	min_time_step(max_dom) = -1,-1 ; flag = -1 implies max time step is 0.5 * starting_time_step,
289	min_time_step = 100 means that the time step will not
290	be less than 100 s
291	adaptation_domain = 1 ; default, all fine grid domains adaptive dt driven by coarse-grid
292	; 2 = Fine grid domain #2 determines the fundamental adaptive dt.
293
294	&dfi_control
295	dfi_opt = 0 ; which DFI option to use (3 is recommended)
296	; 0 = no digital filter initialization
297	; 1 = digital filter launch (DFL)
298	; 2 = diabatic DFI (DDFI)
299	; 3 = twice DFI (TDFI)
300	dfi_nfilter = 7 ; digital filter type to use (7 is recommended)
301	; 0 = uniform
302	; 1 = Lanczos
303	; 2 = Hamming
304	; 3 = Blackman
305	; 4 = Kaiser
306	; 5 = Potter
307	; 6 = Dolph window
308	; 7 = Dolph
309	; 8 = recursive high-order
310	dfi_write_filtered_input = .true. ; whether to write wrfinput file with filtered
311	; model state before beginning forecast
312	dfi_write_dfi_history = .false. ; whether to write wrfout files during filtering integration
313	dfi_cutoff_seconds = 3600 ; cutoff period, in seconds, for the filter
314	dfi_time_dim = 1000 ; maximum number of time steps for filtering period
315	; this value can be larger than necessary
316	dfi_bckstop_year = 2004 ; four-digit year of stop time for backward DFI integration
317	dfi_bckstop_month = 03 ; two-digit month of stop time for backward DFI integration
318	dfi_bckstop_day = 14 ; two-digit day of stop time for backward DFI integration
319	dfi_bckstop_hour = 12 ; two-digit hour of stop time for backward DFI integration
320	dfi_bckstop_minute = 00 ; two-digit minute of stop time for backward DFI integration
321	dfi_bckstop_second = 00 ; two-digit second of stop time for backward DFI integration
322	dfi_fwdstop_year = 2004 ; four-digit year of stop time for forward DFI integration
323	dfi_fwdstop_month = 03 ; two-digit month of stop time for forward DFI integration
324	dfi_fwdstop_day = 13 ; two-digit month of stop time for forward DFI integration
325	dfi_fwdstop_hour = 12 ; two-digit month of stop time for forward DFI integration
326	dfi_fwdstop_minute = 00 ; two-digit month of stop time for forward DFI integration
327	dfi_fwdstop_second = 00 ; two-digit month of stop time for forward DFI integration
328	dfi_radar = 0 ; DFI radar da switch
329
330	&physics
331
332	Note: even the physics options can be different in different nest domains,
333	caution must be used as what options are sensible to use
334
335	chem_opt = 0, ; chemistry option - use WRF-Chem
336	mp_physics (max_dom) microphysics option
337	= 0, no microphysics
338	= 1, Kessler scheme
339	= 2, Lin et al. scheme
340	= 3, WSM 3-class simple ice scheme
341	= 4, WSM 5-class scheme
342	= 5, Ferrier (new Eta) microphysics
343	= 6, WSM 6-class graupel scheme
344	= 7, Goddard GCE scheme (also uses gsfcgce_hail, gsfcgce_2ice)
345	= 8, Thompson scheme (new for V3.1)
346	= 9, Milbrandt-Yau 2-moment scheme (new for V3.2)
347	= 10, Morrison (2 moments)
348	= 13, SBU_YLIN scheme
349	= 14, WDM 5-class scheme
350	= 16, WDM 6-class scheme
351	= 98, Thompson scheme (version from V3.0)
352
353	For non-zero mp_physics options, to keep Qv .GE. 0, and to set the other moisture
354	fields .LT. a critcal value to zero
355
356	mp_zero_out = 0, ; no action taken, no adjustment to any moist field
357	= 1, ; except for Qv, all other moist arrays are set to zero
358	; if they fall below a critical value
359	= 2, ; Qv is .GE. 0, all other moist arrays are set to zero
360	; if they fall below a critical value
361	mp_zero_out_thresh = 1.e-8 ; critical value for moist array threshold, below which
362	; moist arrays (except for Qv) are set to zero (kg/kg)
363
364	gsfcgce_hail = 0 ; for running gsfcgce microphysics with graupel
365	= 1 ; for running gsfcgce microphysics with hail
366	default value = 0
367	gsfcgce_2ice = 0 ; for running with snow, ice and graupel/hail
368	= 1 ; for running with only ice and snow
369	= 2 ; for running with only ice and graupel
370	(only used in very extreme situation)
371	default value = 0
372	gsfcgce_hail is ignored if gsfcgce_2ice is set to 1 or 2.
373
374	no_mp_heating = 0 ; normal
375	= 1 ; turn off latent heating from a microphysics scheme
376
377	ra_lw_physics (max_dom) longwave radiation option
378	= 0, no longwave radiation
379	= 1, rrtm scheme
380	= 3, cam scheme
381	also must set levsiz, paerlev, cam_abs_dim1/2 (see below)
382	= 4, rrtmg scheme
383	= 5, Goddard longwave scheme
384	= 31, Earth Held-Suarez forcing
385	= 99, GFDL (Eta) longwave (semi-supported)
386	also must use co2tf = 1 for ARW
387
388	ra_sw_physics (max_dom) shortwave radiation option
389	= 0, no shortwave radiation
390	= 1, Dudhia scheme
391	= 2, Goddard short wave
392	= 3, cam scheme
393	also must set levsiz, paerlev, cam_abs_dim1/2 (see below)
394	= 5, Goddard shortwave scheme
395	= 4, rrtmg scheme
396	= 99, GFDL (Eta) longwave (semi-supported)
397	also must use co2tf = 1 for ARW
398
399	radt (max_dom) = 30, ; minutes between radiation physics calls
400	recommend 1 min per km of dx (e.g. 10 for 10 km)
401
402	nrads (max_dom) = FOR NMM: number of fundamental timesteps between
403	calls to shortwave radiation; the value
404	is set in Registry.NMM but is overridden
405	by namelist value; radt will be computed
406	from this.
407
408	nradl (max_dom) = FOR NMM: number of fundamental timesteps between
409	calls to longwave radiation; the value
410	is set in Registry.NMM but is overridden
411	by namelist value.
412
413	co2tf CO2 transmission function flag only for GFDL radiation
414	= 0, read CO2 function data from pre-generated file
415	= 1, generate CO2 functions internally in the forecast
416
417	ra_call_offset radiation call offset
418	= 0 (no offset), =-1 (old offset)
419
420	cam_abs_freq_s = 21600 CAM clearsky longwave absorption calculation frequency
421	(recommended minimum value to speed scheme up)
422	levsiz = 59 for CAM radiation input ozone levels
423	paerlev = 29 for CAM radiation input aerosol levels
424	cam_abs_dim1 = 4 for CAM absorption save array
425	cam_abs_dim2 = value of e_vert for CAM 2nd absorption save array
426
427	sf_sfclay_physics (max_dom) surface-layer option (old bl_sfclay_physics option)
428	= 0, no surface-layer
429	= 1, Monin-Obukhov scheme
430	= 2, Monin-Obukhov (Janjic) scheme
431	= 3, NCEP Global Forecast System scheme (NMM only)
432	= 4, QNSE surface layer
433	= 5, MYNN surface layer
434	= 7, Pleim-Xiu surface layer (ARW only)
435	= 10, TEMF surface layer (ARW only)
436
437	sf_surface_physics (max_dom) land-surface option (old bl_surface_physics option)
438	= 0, no surface temp prediction
439	= 1, thermal diffusion scheme
440	= 2, Unified Noah land-surface model
441	= 3, RUC land-surface model
442	= 7, Pleim-Xiu LSM (ARW)
443
444	sf_urban_physics(max_dom) = 0, ; activate urban canopy model (in Noah LSM only)
445	= 0: no
446	= 1: Single-layer, UCM
447	= 2: Multi-layer, Building Environment Parameterization (BEP) scheme
448	(works only with MYJ and BouLac PBL)
449	= 3: Multi-layer, Building Environment Model (BEM) scheme
450	(works only with MYJ and BouLac PBL)
451
452	bl_pbl_physics (max_dom) boundary-layer option
453	= 0, no boundary-layer
454	= 1, YSU scheme
455	= 2, Mellor-Yamada-Janjic TKE scheme
456	= 3, NCEP Global Forecast System scheme (NMM only)
457	= 4, Quasi-Normal Scale Elimination PBL
458	= 5, MYNN 2.5 level TKE scheme, works with
459	sf_sfclay_physics=1 or 2 as well as 5
460	= 6, MYNN 3rd level TKE scheme, works only
461	MYNNSFC (sf_sfclay_physics = 5)
462	= 7, ACM2 (Pleim) PBL (ARW)
463	= 8, Bougeault and Lacarrere (BouLac) PBL
464	= 9, UW boundary layer scheme from CAM5 (CESM 1_0_1)
465	= 10, TEMF scheme (ARW only)
466	= 99, MRF scheme
467
468	bldt (max_dom) = 0, ; minutes between boundary-layer physics calls
469
470	grav_settling = 0, ; MYNN PBL only; gravitational settling of fog/cloud droplets (1=yes)
471	nphs (max_dom) = FOR NMM: number of fundamental timesteps between
472	calls to turbulence and microphysics;
473	the value is set in Registry.NMM but is
474	overridden by namelist value; bldt will
475	be computed from this.
476
477	cu_physics (max_dom) cumulus option
478	= 0, no cumulus
479	= 1, Kain-Fritsch (new Eta) scheme
480	= 2, Betts-Miller-Janjic scheme
481	= 3, Grell-Devenyi ensemble scheme
482	= 4, Simplified Arakawa-Schubert scheme
483	= 5, Grell 3D ensemble scheme
484	= 6, Modifed Tiedtke scheme (ARW only)
485	= 7, Zhang-McFarlane scheme from CAM5 (CESM 1_0_1)
486	= 14, New GFS simplified Arakawa-Schubert scheme from YSU (ARW only)
487	= 99, previous Kain-Fritsch scheme
488
489	shcu_physics (max_dom) independent shallow cumulus option (not tied to deep convection)
490	= 0, no independent shallow cumulus
491	= 1, Grell 3D ensemble scheme (use with cu_physics=5) (PLACEHOLDER: SWITCH NOT YET IMPLEMENTED--use ishallow)
492	= 2, Park and Bretherton shallow cumulus from CAM5 (CESM 1_0_1)
493
494	ishallow = 1, Shallow convection used with Grell 3D ensemble scheme (cu_physics = 5)
495	clos_choice = 0, closure choice (place holder only)
496
497	cu_diag = 0, additional t-averaged stuff for cu physics (GD and G3 only)
498	convtrans_avglen_m = 30, averaging time for convective transport output variables (minutes) (GD and G3 only)
499
500	cudt = 0, ; minutes between cumulus physics calls
501
502	kfeta_trigger KF trigger option (cu_physics=1 only):
503	= 1, default option
504	= 2, moisture-advection based trigger (Ma and Tan [2009]) - ARW only
505	= 3, RH-dependent additional perturbation to option 1 (JMA)
506
507	cugd_avedx ; number of grid boxes over which subsidence is spread.
508	= 1, default, for large grid distances
509	= 3, for small grid distances (DX < 5 km)
510
511	ncnvc (max_dom) = FOR NMM: number of fundamental timesteps between
512	calls to convection; the value is set in Registry.NMM
513	but is overridden by namelist value; cudt will be
514	computed from this.
515
516	tprec (max_dom) = FOR NMM: number of hours in precipitation bucket
517	theat (max_dom) = FOR NMM: number of hours in latent heating bucket
518	tclod (max_dom) = FOR NMM: number of hours in cloud fraction average
519	trdsw (max_dom) = FOR NMM: number of hours in short wave buckets
520	trdlw (max_dom) = FOR NMM: number of hours in long wave buckets
521	tsrfc (max_dom) = FOR NMM: number of hours in surface flux buckets
522	pcpflg (max_dom) = FOR NMM: logical switch for precipitation assimilation
523
524	isfflx = 1, ; heat and moisture fluxes from the surface
525	(only works for sf_sfclay_physics = 1)
526	1 = with fluxes from the surface
527	0 = no flux from the surface
528	with bl_pbl_physics=0 this uses tke_drag_coefficient
529	and tke_heat_flux in vertical diffusion
530	2 = use drag from sf_sfclay_physics and heat flux from
531	tke_heat_flux with bl_pbl_physics=0
532	ifsnow = 0, ; snow-cover effects
533	(only works for sf_surface_physics = 1)
534	1 = with snow-cover effect
535	0 = without snow-cover effect
536	icloud = 1, ; cloud effect to the optical depth in radiation
537	(only works for ra_sw_physics = 1 and ra_lw_physics = 1)
538	1 = with cloud effect
539	0 = without cloud effect
540	swrad_scat = 1. ; scattering tuning parameter (default 1. is 1.e-5 m2/kg)
541	surface_input_source = 1, ; where landuse and soil category data come from:
542	1 = WPS/geogrid but with dominant categories recomputed
543	2 = GRIB data from another model (only possible
544	(VEGCAT/SOILCAT are in met_em files from WPS)
545	3 = use dominant land and soil categories from WPS/geogrid
546
547	num_soil_layers = 5, ; number of soil layers in land surface model
548	= 5: thermal diffusion scheme
549	= 4: Noah landsurface model
550	= 6: RUC landsurface model
551	= 2: Pleim-Xu landsurface model
552	num_land_cat = 24, ; number of land categories in input data.
553	24 - for USGS (default); 20 for MODIS
554	28 - for USGS if including lake category
555	21 - for MODIS if including lake category
556	num_soil_cat = 16, ; number of soil categories in input data
557
558	pxlsm_smois_init(max_dom) = 1 ; PXLSM Soil moisture initialization option
559	0 - From analysis, 1 - From MAVAIL
560
561	maxiens = 1, ; Grell-Devenyi only
562	maxens = 3, ; G-D only
563	maxens2 = 3, ; G-D only
564	maxens3 = 16 ; G-D only
565	ensdim = 144 ; G-D only
566	These are recommended numbers. If you would like to use
567	any other number, consult the code, know what you are doing.
568	seaice_threshold = 271 ; tsk < seaice_threshold, if water point and 5-layer slab
569	; scheme, set to land point and permanent ice; if water point
570	; and Noah scheme, set to land point, permanent ice, set temps
571	; from 3 m to surface, and set smois and sh2o
572	sst_update = 0 ; time-varying sea-surface temp (0=no, 1=yes). If selected real
573	; puts SST, XICE, ALBEDO and VEGFRA in wrflowinp_d01 file, and wrf updates
574	; these from it at same interval as boundary file. Also requires
575	; namelists in &time_control: auxinput4_interval, auxinput4_end_h,
576	; auxinput4_inname = "wrflowinp_d<domain>",
577	; and in V3.2 io_form_auxinput4
578	usemonalb = .true. ; use monthly albedo map instead of table value
579	; (must be used for NMM and recommended for sst_update=1)
580	rdmaxalb = .true. ; use snow albedo from geogrid; false means using values from table
581	rdlai2d = .false. ; use LAI from input; false means using values from table
582	bucket_mm = -1. ; bucket reset value for water accumulations (value in mm, -1.=inactive)
583	bucket_J = -1. ; bucket reset value for energy accumulations (value in J, -1.=inactive)
584	tmn_update = 0 ; update deep soil temperature (1, yes; 0, no)
585	lagday = 150 ; days over which tmn is computed using skin temperature
586	sst_skin = 0 ; calculate skin SST
587	slope_rad (max_dom) = 0 ; slope effects for solar radiation (1=on, 0=off)
588	topo_shading (max_dom) = 0 ; neighboring-point shadow effects for solar radiation (1=on, 0=off)
589	shadlen = 25000. ; max shadow length in meters for topo_shading=1
590	omlcall = 0 ; activate simple ocean mixed layer model (0=no, 1=yes); works with
591	sf_surface_physics = 1 only
592	oml_hml0 = 50 ; oml model can be initialized with a constant depth everywhere (m)
593	oml_gamma = 0.14 ; oml deep water lapse rate (K m-1)
594	isftcflx = 0 ; alternative Ck, Cd formulation for tropical storm application (0=default, 1=new, 2=Garratt)
595	fractional_seaice = 0 ; treat sea-ice as fractional field (1) or ice/no-ice flag (0)
596	tice2tsk_if2cold = .false. ; set Tice to Tsk to avoid unrealistically low sea ice temperatures
597	iz0tlnd = 0 ; thermal roughness length for sfclay and myjsfc (0 - old, 1 - veg dependent Czil)
598	mp_tend_lim = 10., ; limit on temp tendency from mp latent heating from radar data assimilation
599	prec_acc_dt (max_dom) = 0., ; number of minutes in precipitation bucket (ARW only) - will add three
600	new 2d output fields: prec_acc_c, prec_acc_nc and snow_acc_nc
601
602	Options for wind turbine drag parameterization:
603
604	td_turbgridid = -1 ; which grid id has turbines in it
605	td_hubheight = 100. ; hub height (m)
606	td_diameter = 60. ; turbine diameter (m)
607	td_stdthrcoef = .158 ; standing thrust coefficient
608	td_cutinspeed = 4. ; cut-in speed (m/s)
609	td_cutoutspeed = 27. ; cut-out speed (m/s)
610	td_power = 2. ; turbine power (MW)
611	td_turbpercell = 1. ; number of turbines per cell
612	td_ewfx = 0 ; extent of wind farm in x-cells
613	td_ewfy = 0 ; extent of wind farm in y-cells
614	td_pwfx = 1 ; southwest corner of wind farm in x-cells
615	td_pwfy = 1 ; southwest corner of wind farm in y-cells
616
617	Options for stochastic kinetic-energy backscatter scheme:
618
619	stoch_force_opt (max_dom) = 0, : No stochastic parameterization
620	1, : Stochastic kinetic-energy backscatter scheme (SKEB)
621	stoch_vertstruc_opt (max_dom) = 0, : Constant vertical structure of random pattern generator
622	1, : Random phase vertical structure random pattern generator
623	tot_backscat_psi = 115200, ; Controls amplitude of rotational wind perturbations
624	tot_backscat_t = 2.E-6 ; Controls amplitude of potential temperature perturbations
625	nens = 1 ; an integer that controls the random number stream which will then
626	change the run. When running an ensemble, this can be
627	ensemble member number, so that each ensemble member gets a
628	different random number stream, hence a different perturbed run.
629
630	&fdda
631	grid_fdda (max_dom) = 1 ; grid-nudging fdda on (=0 off) for each domain
632	= 2 ; spectral nudging
633	gfdda_inname = "wrffdda_d<domain>" ; defined name in real
634	gfdda_interval_m (max_dom) = 360 ; time interval (in min) between analysis times (must use minutes)
635	gfdda_end_h (max_dom) = 6 ; time (in hours) to stop nudging after start of forecast
636	io_form_gfdda = 2 ; analysis data io format (2 = netCDF)
637	fgdt (max_dom) = 0 ; calculation frequency (minutes) for grid-nudging (0=every step)
638	if_no_pbl_nudging_uv (max_dom) = 0 ; 1= no nudging of u and v in the pbl, 0=nudging in the pbl
639	if_no_pbl_nudging_t (max_dom) = 0 ; 1= no nudging of temp in the pbl, 0=nudging in the pbl
640	if_no_pbl_nudging_q (max_dom) = 0 ; 1= no nudging of qvapor in the pbl, 0=nudging in the pbl
641	if_zfac_uv (max_dom) = 0 ; 0= nudge u and v in all layers, 1= limit nudging to levels above k_zfac_uv
642	k_zfac_uv (max_dom) = 10 ; 10=model level below which nudging is switched off for u and v
643	if_zfac_t (max_dom) = 0 ; 0= nudge temp in all layers, 1= limit nudging to levels above k_zfac_t
644	k_zfac_t (max_dom) = 10 ; 10=model level below which nudging is switched off for temp
645	if_zfac_q (max_dom) = 0 ; 0= nudge qvapor in all layers, 1= limit nudging to levels above k_zfac_q
646	k_zfac_q (max_dom) = 10 ; 10=model level below which nudging is switched off for qvapor
647	guv (max_dom) = 0.0003 ; nudging coefficient for u and v (sec-1)
648	gt (max_dom) = 0.0003 ; nudging coefficient for temp (sec-1)
649	gq (max_dom) = 0.0003 ; nudging coefficient for qvapor (sec-1)
650	if_ramping = 0 ; 0= nudging ends as a step function, 1= ramping nudging down at end of period
651	dtramp_min = 60.0 ; time (min) for ramping function, 60.0=ramping starts at last analysis time,
652	-60.0=ramping ends at last analysis time
653	grid_sfdda (max_dom) = 0 ; surface fdda switch (1, on; 0, off)
654	sgfdda_inname = "wrfsfdda_d<domain>" ; defined name for sfc nudgingi in input file (from program obsgrid)
655	sgfdda_end_h (max_dom) = 6 ; time (in hours) to stop sfc nudging after start of forecast
656	sgfdda_interval_m (max_dom) = 180 ; time interval (in min) between sfc analysis times (must use minutes)
657	io_form_sgfdda = 2 ; sfc analysis data io format (2 = netCDF)
658	guv_sfc (max_dom) = 0.0003 ; nudging coefficient for sfc u and v (sec-1)
659	gt_sfc (max_dom) = 0.0003 ; nudging coefficient for sfc temp (sec-1)
660	gq_sfc (max_dom) = 0.0003 ; nudging coefficient for sfc qvapor (sec-1)
661	rinblw = 250.0 ; radius of influence used to determine the confidence (or weights) for
662	the analysis, which is based on the distance between the grid point to the nearest
663	obs. The analysis without nearby observation is used at a reduced weight.
664
665	pxlsm_soil_nudge(max_dom) = 1 ; PXLSM Soil nudging option (requires wrfsfdda file)
666
667	The following are for spectral nudging:
668	fgdtzero (max_dom) = 0, ; 1= nudging tendencies are set to zero in between fdda calls
669	if_no_pbl_nudging_ph = 0, ; 1= no nudging of ph in the pbl, 0= nuding in the pbl
670	if_zfac_ph (max_dom) = 0, ; 0= nudge ph in all layers, 1= limit nudging to levels above k_zfac_ph
671	k_zfac_ph (max_dom) = 10, ; 10= model level below which nudging is switched off for ph
672	dk_zfac_uv (max_dom) = 1, ; depth in k between k_zfac_X to dk_zfac_X where nudging increases
673	linearly to full strength
674	dk_zfac_t (max_dom) = 1,
675	dk_zfac_ph (max_dom) = 1,
676	gph (max_dom) = 0.0003,
677	xwavenum (max_dom) = 3, ; top wave number to nudge in x direction
678	ywavenum (max_dom) = 3, ; top wave number to nudge in y direction
679
680	The following are for observation nudging:
681	obs_nudge_opt (max_dom) = 1 ; obs-nudging fdda on (=0 off) for each domain
682	also need to set auxinput11_interval and auxinput11_end_h
683	in time_control namelist
684	max_obs = 150000 ; max number of observations used on a domain during any
685	given time window
686	fdda_start = 0 ; obs nudging start time in minutes
687	fdda_end = 180 ; obs nudging end time in minutes
688	obs_nudge_wind (max_dom) = 1 ; whether to nudge wind: (=0 off)
689	obs_coef_wind = 6.E-4, ; nudging coefficient for wind, unit: s-1
690	obs_nudge_temp = 1 ; whether to nudge temperature: (=0 off)
691	obs_coef_temp = 6.E-4, ; nudging coefficient for temperature, unit: s-1
692	obs_nudge_mois = 1 ; whether to nudge water vapor mixing ratio: (=0 off)
693	obs_coef_mois = 6.E-4, ; nudging coefficient for water vapor mixing ratio, unit: s-1
694	obs_nudge_pstr = 0 ; whether to nudge surface pressure (not used)
695	obs_coef_pstr = 0. ; nudging coefficient for surface pressure, unit: s-1 (not used)
696	obs_rinxy = 200., ; horizonal radius of influence in km
697	obs_rinsig = 0.1, ; vertical radius of influence in eta
698	obs_twindo (max_dom) = 0.66667 ; half-period time window over which an observation
699	will be used for nudging (hours)
700	obs_npfi = 10, ; freq in coarse grid timesteps for diag prints
701	obs_ionf (max_dom) = 2 ; freq in coarse grid timesteps for obs input and err calc
702	obs_idynin = 0 ; for dynamic initialization using a ramp-down function to gradually
703	turn off the FDDA before the pure forecast (=1 on)
704	obs_dtramp = 40 ; time period in minutes over which the nudging is ramped down
705	from one to zero.
706	obs_prt_freq (max_dom) = 10, ; Frequency in obs index for diagnostic printout
707	obs_prt_max = 1000, ; Maximum allowed obs entries in diagnostic printout
708	obs_ipf_in4dob = .true. ; print obs input diagnostics (=.false. off)
709	obs_ipf_errob = .true. ; print obs error diagnostics (=.false. off)
710	obs_ipf_nudob = .true. ; print obs nudge diagnostics (=.false. off)
711	obs_ipf_init = .true. ; Enable obs init warning messages
712
713	obs_no_pbl_nudge_uv (max_dom) = 0 ; 1=no wind-nudging within pbl
714	obs_no_pbl_nudge_t (max_dom) = 0 ; 1=no temperature-nudging within pbl
715	obs_no_pbl_nudge_q (max_dom) = 0 ; 1=no moisture-nudging within pbl
716	obs_sfc_scheme_horiz = 0 ; horizontal spreading scheme for surf obs;
717	0=wrf scheme, 1=original mm5 scheme
718	obs_sfc_scheme_vert = 0 ; vertical spreading scheme for surf obs
719	0=regime vif scheme, 1=original simple scheme
720	obs_max_sndng_gap = 20 ; Max pressure gap between soundings, in cb
721	obs_nudgezfullr1_uv = 50 ; Vert infl full weight height for lowest model level (LML) obs, regime 1, winds
722	obs_nudgezrampr1_uv = 50 ; Vert infl ramp-to-zero height for LML obs, regime 1, winds
723	obs_nudgezfullr2_uv = 50 ; Vert infl full weight height for LML obs, regime 2, winds
724	obs_nudgezrampr2_uv = 50 ; Vert infl ramp-to-zero height for LML obs, regime 2, winds
725	obs_nudgezfullr4_uv = -5000 ; Vert infl full weight height for LML obs, regime 4, winds
726	obs_nudgezrampr4_uv = 50 ; Vert infl ramp-to-zero height for LML obs, regime 4, winds
727	obs_nudgezfullr1_t = 50 ; Vert infl full weight height for LML obs, regime 1, temperature
728	obs_nudgezrampr1_t = 50 ; Vert infl ramp-to-zero height for LML obs, regime 1, temperature
729	obs_nudgezfullr2_t = 50 ; Vert infl full weight height for LML obs, regime 2, temperature
730	obs_nudgezrampr2_t = 50 ; Vert infl ramp-to-zero height for LML obs, regime 2, temperature
731	obs_nudgezfullr4_t = -5000 ; Vert infl full weight height for LML obs, regime 4, temperature
732	obs_nudgezrampr4_t = 50 ; Vert infl ramp-to-zero height for LML obs, regime 4, temperature
733	obs_nudgezfullr1_q = 50 ; Vert infl full weight height for LML obs, regime 1, moisture
734	obs_nudgezrampr1_q = 50 ; Vert infl ramp-to-zero height for LML obs, regime 1, moisture
735	obs_nudgezfullr2_q = 50 ; Vert infl full weight height for LML obs, regime 2, moisture
736	obs_nudgezrampr2_q = 50 ; Vert infl ramp-to-zero height for LML obs, regime 2, moisture
737	obs_nudgezfullr4_q = -5000 ; Vert infl full weight height for LML obs, regime 4, moisture
738	obs_nudgezrampr4_q = 50 ; Vert infl ramp-to-zero height for LML obs, regime 4, moisture
739	obs_nudgezfullmin = 50 ; Min depth through which vertical infl fcn remains 1.0
740	obs_nudgezrampmin = 50 ; Min depth (m) through which vert infl fcn decreases from 1 to 0
741	obs_nudgezmax = 3000 ; Max depth (m) in which vert infl function is nonzero
742	obs_sfcfact = 1.0 ; Scale factor applied to time window for surface obs
743	obs_sfcfacr = 1.0 ; Scale factor applied to horiz radius of influence for surface obs
744	obs_dpsmx = 7.5 ; Max pressure change (cb) allowed within horiz radius of influence
745	/
746
747	&scm
748	scm_force = 1, ; switch for single column forcing (=0 off)
749	scm_force_dx = 4000. ; DX for SCM forcing (in meters)
750	num_force_layers = 8 ; number of SCM input forcing layers
751	scm_lu_index = 2 ; SCM landuse category (2 is dryland, cropland and pasture)
752	scm_isltyp = 4 ; SCM soil category (4 is silt loam)
753	scm_vegfra = 0.5 ; SCM vegetation fraction
754	scm_canwat = 0.0 ; SCM canopy water
755	scm_lat = 37.600 ; SCM latitude
756	scm_lon = -96.700 ; SCM longitude
757	scm_th_adv = .true. ; turn on theta advection in SCM
758	scm_wind_adv = .true. ; turn on wind advection in SCM
759	scm_qv_adv = .true. ; turn on moisture advection in SCM
760	scm_ql_adv = .true. ; turn on cloud liquid water advection in SCM
761	scm_vert_adv = .true. ; turn on vertical advection in SCM
762	num_force_soil_layers = 5, ; Number of SCM soil forcing layer
763	scm_soilT_force = .false. ; Turn on soil temp forcing in SCM
764	scm_soilq_force = .false. ; Turn on soil moisture forcing in SCM
765	scm_force_th_largescale = .false. ; Turn on large scale theta forcing in SCM
766	scm_force_qv_largescale = .false. ; Turn on large scale qv forcing in SCM
767	scm_force_ql_largescale = .false. ; Turn on large scale cloud water forcing in SCM
768	scm_force_wind_largescale = .false. ; Turn on large scale wind forcing in SCM
769
770	&dynamics
771	rk_ord = 3, ; time-integration scheme option:
772	2 = Runge-Kutta 2nd order
773	3 = Runge-Kutta 3rd order
774	diff_opt = 0, ; turbulence and mixing option:
775	0 = no turbulence or explicit
776	spatial numerical filters (km_opt IS IGNORED).
777	1 = evaluates 2nd order
778	diffusion term on coordinate surfaces.
779	uses kvdif for vertical diff unless PBL option
780	is used. may be used with km_opt = 1 and 4.
781	(= 1, recommended for real-data cases)
782	2 = evaluates mixing terms in
783	physical space (stress form) (x,y,z).
784	turbulence parameterization is chosen
785	by specifying km_opt.
786	km_opt = 1, ; eddy coefficient option
787	1 = constant (use khdif kvdif)
788	2 = 1.5 order TKE closure (3D)
789	3 = Smagorinsky first order closure (3D)
790	Note: option 2 and 3 are not recommended for DX > 2 km
791	4 = horizontal Smagorinsky first order closure
792	(recommended for real-data cases)
793	damp_opt = 0, ; upper level damping flag
794	0 = without damping
795	1 = with diffusive damping, maybe used for real-data cases
796	(dampcoef nondimensional ~0.01-0.1)
797	2 = with Rayleigh damping (dampcoef inverse time scale [1/s] e.g. .003; idealized case only
798	not for real-data cases)
799	3 = with w-Rayleigh damping (dampcoef inverse time scale [1/s] e.g. .05;
800	for real-data cases)
801	diff_6th_opt = 0, ; 6th-order numerical diffusion
802	0 = no 6th-order diffusion (default)
803	1 = 6th-order numerical diffusion (not recommended)
804	2 = 6th-order numerical diffusion but prohibit up-gradient diffusion
805	diff_6th_factor = 0.12, ; 6th-order numerical diffusion non-dimensional rate (max value 1.0
806	corresponds to complete removal of 2dx wave in one timestep)
807	dampcoef (max_dom) = 0., ; damping coefficient (see above)
808	zdamp (max_dom) = 5000., ; damping depth (m) from model top
809	w_damping = 0, ; vertical velocity damping flag (for operational use)
810	0 = without damping
811	1 = with damping
812	base_temp = 290., ; real-data, em ONLY, base sea-level temp (K)
813	base_pres = 10^5 ; real-data, em ONLY, base sea-level pres (Pa), DO NOT CHANGE
814	base_lapse = 50., ; real-data, em ONLY, lapse rate (K), DO NOT CHANGE
815	iso_temp = 0., ; real-data, em ONLY, reference temp in stratosphere
816	khdif (max_dom) = 0, ; horizontal diffusion constant (m^2/s)
817	kvdif (max_dom) = 0, ; vertical diffusion constant (m^2/s)
818	smdiv (max_dom) = 0.1, ; divergence damping (0.1 is typical)
819	emdiv (max_dom) = 0.01, ; external-mode filter coef for mass coordinate model
820	(0.01 is typical for real-data cases)
821	epssm (max_dom) = .1, ; time off-centering for vertical sound waves
822	non_hydrostatic (max_dom) = .true., ; whether running the model in hydrostatic or non-hydro mode
823	pert_coriolis (max_dom) = .false., ; Coriolis only acts on wind perturbation (idealized)
824	top_lid (max_dom) = .false., ; Zero vertical motion at top of domain
825	mix_full_fields(max_dom) = .true., ; used with diff_opt = 2; value of ".true." is recommended, except for
826	highly idealized numerical tests; damp_opt must not be 1 if ".true."
827	is chosen. .false. means subtract 1-d base-state profile before mixing
828	mix_isotropic(max_dom) = 0 ; 0=anistropic vertical/horizontal diffusion coeffs, 1=isotropic
829	mix_upper_bound(max_dom) = 0.1 ; non-dimensional upper limit for diffusion coeffs
830	tke_drag_coefficient(max_dom) = 0., ; surface drag coefficient (Cd, dimensionless) for diff_opt=2 only
831	tke_heat_flux(max_dom) = 0., ; surface thermal flux (H/(rho*cp), K m/s) for diff_opt=2 only
832	h_mom_adv_order (max_dom) = 5, ; horizontal momentum advection order (5=5th, etc.)
833	v_mom_adv_order (max_dom) = 3, ; vertical momentum advection order
834	h_sca_adv_order (max_dom) = 5, ; horizontal scalar advection order
835	v_sca_adv_order (max_dom) = 3, ; vertical scalar advection order
836
837	; advection options for scalar variables: 0=simple, 1=positive definite, 2=monotonic
838	moist_adv_opt (max_dom) = 1 ; for moisture
839	scalar_adv_opt (max_dom) = 1 ; for scalars
840	chem_adv_opt (max_dom) = 1 ; for chem variables
841	tracer_adv_opt (max_dom) = 1 ; for tracer variables (WRF-Chem activated)
842	tke_adv_opt (max_dom) = 1 ; for tke
843
844	time_step_sound (max_dom) = 4 / ; number of sound steps per time-step (0=set automatically)
845	(if using a time_step much larger than 6*dx (in km),
846	proportionally increase number of sound steps - also
847	best to use even numbers)
848	do_avgflx_em (max_dom) = 0, ; whether to output time-averaged mass-coupled advective velocities
849	0 = no (default)
850	1 = yes
851	do_avgflx_cugd (max_dom) = 0, ; whether to output time-averaged convective mass-fluxes from Grell-Devenyi ensemble scheme
852	0 = no (default)
853	1 = yes (only takes effect if do_avgflx_em=1 and cu_physics= 3
854	do_coriolis (max_dom) = .true., ; whether to do Coriolis calculations (idealized) (inactive)
855	do_curvature (max_dom) = .true., ; whether to do curvature calculations (idealized) (inactive)
856	do_gradp (max_dom) = .true., ; whether to do horizontal pressure gradient calculations (idealized) (inactive)
857	fft_filter_lat = 45. ; the latitude above which the polar filter is turned on
858
859	gwd_opt = 0 ; for running without gravity wave drag
860	= 1 ; for running the WRF-ARW with its gravity wave drag
861	= 2 ; for running the WRF-NMM with its gravity wave drag
862	sfs_opt (max_dom) = 0 ; nonlinear backscatter and anisotropy (NBA) off
863	= 1 ; NBA1 using diagnostic stress terms (km_opt=2,3 for scalars)
864	= 2 ; NBA2 using tke-based stress terms (km_opt=2 needed)
865	m_opt (max_dom) = 0 ; no added output
866	= 1 ; adds output of Mij stress terms when NBA is not used
867	tracer_opt(max_dom) = 0 ;
868
869	&bdy_control
870	spec_bdy_width = 5, ; total number of rows for specified boundary value nudging
871	spec_zone = 1, ; number of points in specified zone (spec b.c. option)
872	relax_zone = 4, ; number of points in relaxation zone (spec b.c. option)
873	specified (max_dom) = .false., ; specified boundary conditions (only can be used for domain 1)
874	the above 4 are used for real-data runs
875	spec_exp = 0. ; exponential multiplier for relaxation zone ramp for specified=.t.
876	(0.=linear ramp default, e.g. 0.33=~3*dx exp decay factor)
877	constant_bc = .false. ; constant boundary condition used with DFI
878
879	periodic_x (max_dom) = .false., ; periodic boundary conditions in x direction
880	symmetric_xs (max_dom) = .false., ; symmetric boundary conditions at x start (west)
881	symmetric_xe (max_dom) = .false., ; symmetric boundary conditions at x end (east)
882	open_xs (max_dom) = .false., ; open boundary conditions at x start (west)
883	open_xe (max_dom) = .false., ; open boundary conditions at x end (east)
884	periodic_y (max_dom) = .false., ; periodic boundary conditions in y direction
885	symmetric_ys (max_dom) = .false., ; symmetric boundary conditions at y start (south)
886	symmetric_ye (max_dom) = .false., ; symmetric boundary conditions at y end (north)
887	open_ys (max_dom) = .false., ; open boundary conditions at y start (south)
888	open_ye (max_dom) = .false., ; open boundary conditions at y end (north)
889	nested (max_dom) = .false., ; nested boundary conditions (must be used for nests)
890	polar = .false., ; polar boundary condition
891	(v=0 at polarward-most v-point)
892	euler_adv = .false., ; conservative Eulerian passive advection (NMM only)
893	idtadt = 1, ; fundamental timesteps between calls to Euler advection, dynamics (NMM only)
894	idtadc = 1 ; fundamental timesteps between calls to Euler advection, chemistry (NMM only)
895
896
897
898	&tc ; controls for tc_em.exe ONLY, no impact on real, ndown, or model
899
900	insert_bogus_storm = .false. ; T/F for inserting a bogus tropical storm (TC)
901	remove_storm = .false. ; T/F for only removing the original TC
902	num_storm = 1 ; Number of bogus TC
903	latc_loc = -999. ; center latitude of the bogus TC
904	lonc_loc = -999. ; center longitude of the bogus TC
905	vmax_meters_per_second(max_bogus) = -999. ; vmax of bogus storm in meters per second
906	rmax = -999. ; maximum radius outward from storm center
907	vmax_ratio(max_bogus) = -999. ; ratio for representative maximum winds, 0.75 for 45 km grid, and
908	0.9 for 15 km grid.
909	rankine_lid = -999. ; top pressure limit for the tc bogus scheme
910
911	&namelist_quilt This namelist record controls asynchronized I/O for MPI applications.
912
913	nio_tasks_per_group = 0, default value is 0: no quilting; > 0 quilting I/O
914	nio_groups = 1, default 1, don't change
915
916
917	&grib2:
918	background_proc_id = 255, ; Background generating process identifier, typically defined
919	by the originating center to identify the background data that
920	was used in creating the data. This is octet 13 of Section 4
921	in the grib2 message
922	forecast_proc_id = 255, ; Analysis or generating forecast process identifier, typically
923	defined by the originating center to identify the forecast process
924	that was used to generate the data. This is octet 14 of Section
925	4 in the grib2 message
926	production_status = 255, ; Production status of processed data in the grib2 message.
927	See Code Table 1.3 of the grib2 manual. This is octet 20 of
928	Section 1 in the grib2 record
929	compression = 40, ; The compression method to encode the output grib2 message.
930	Only 40 for jpeg2000 or 41 for PNG are supported

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source: lmdz_wrf/trunk/WRFV3/run/README.namelist

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