Note, this is not a namelist.input file. Find what interests you, and cut and paste them
to your own namelist.input file. For more information on these namelist parameters,
please see run/README.namelist or Chapter 5 of the User's Guide.
** More options for real in namelist record &domains:
p_top_requested = 5000
interp_type = 2
extrap_type = 2
t_extrap_type = 2
lowest_lev_from_sfc = .false.
use_levels_below_ground = .true.
use_surface = .true.
lagrange_order = 1
force_sfc_in_vinterp = 1
zap_close_levels = 500
sfcp_to_sfcp = .false.
adjust_heights = .false.
smooth_cg_topo = .false.
eta_levels = 1.000, 0.990, 0.978, 0.964, 0.946,
0.922, 0.894, 0.860, 0.817, 0.766,
0.707, 0.644, 0.576, 0.507, 0.444,
0.380, 0.324, 0.273, 0.228, 0.188,
0.152, 0.121, 0.093, 0.069, 0.048,
0.029, 0.014, 0.000,
** Using sst_update option (add these to namelist records &time_control and
&physics respectively):
&time_control
auxinput4_inname = "wrflowinp_d<domain>"
auxinput4_interval = 360, 360, 360,
io_form_auxinput4 = 2
&physics
sst_update = 1,
** Using Noah-MP option (Use sf_surface_physics option = 4, and add
&noah_mp namelist record)
&physics
sf_surface_physics = 4
&noah_mp
dveg = 2,
opt_crs = 1,
opt_btr = 1,
opt_sfc = 1,
opt_run = 1,
opt_frz = 1,
opt_inf = 1,
opt_rad = 1,
opt_alb = 2,
opt_snf = 1,
opt_tbot = 2,
opt_stc = 1,
/
** Using stochastic backscatter scheme
&physics
stoch_force_opt = 1, 1, 1,
stoch_vertstruc_opt = 0, 0, 0,
tot_backscat_t = 1.0E-6, 1.0E-6, 1.0E-6
tot_backscat_psi = 1.0E-5, 1.0E-5, 1.0E-5
nens = 1,
** Using DFI options (note this is a separate namelist record):
&dfi_control
dfi_opt = 3,
dfi_nfilter = 7,
dfi_cutoff_seconds = 3600,
dfi_write_filtered_input = .true.
dfi_write_dfi_history = .false.
dfi_bckstop_year = 2000,
dfi_bckstop_month = 01,
dfi_bckstop_day = 24,
dfi_bckstop_hour = 10,
dfi_bckstop_minute = 00,
dfi_bckstop_second = 00,
dfi_fwdstop_year = 2000,
dfi_fwdstop_month = 01,
dfi_fwdstop_day = 24,
dfi_fwdstop_hour = 13,
dfi_fwdstop_minute = 00,
dfi_fwdstop_second = 00,
/
&domains
time_step_dfi = 60.
** Using gridded nudging option (note this is a separate namelist record) for
upperair nudging
** Upper air gridded nudging requires an file generated by the real
program. Activating grid_fdda for the real program is adequate.
&fdda
grid_fdda = 1, 1, 1,
gfdda_inname = "wrffdda_d<domain>",
gfdda_end_h = 24, 24, 24,
gfdda_interval_m = 360, 360, 360,
fgdt = 0, 0, 0,
if_no_pbl_nudging_uv = 0, 0, 0,
if_no_pbl_nudging_t = 1, 1, 1,
if_no_pbl_nudging_q = 1, 1, 1,
if_zfac_uv = 0, 0, 0,
k_zfac_uv = 10, 10, 10,
if_zfac_t = 0, 0, 0,
k_zfac_t = 10, 10, 10,
if_zfac_q = 0, 0, 0,
k_zfac_q = 10, 10, 10,
guv = 0.0003, 0.0003, 0.0003,
gt = 0.0003, 0.0003, 0.0003,
gq = 0.0003, 0.0003, 0.0003,
if_ramping = 1,
dtramp_min = 60.0,
io_form_gfdda = 2,
** Using gridded surface nudging option (note this is a separate namelist
record)
** Note that upper-air and surface gridded nudging may be used together
or separately. Surface nudging requires an input file generated by the
obsgrid program.
&fdda
grid_sfdda = 1, 1, 1,
sgfdda_inname = "wrfsfdda_d<domain>",
sgfdda_end_h = 24, 24, 24,
sgfdda_interval_m = 360, 360, 360,
io_form_sgfdda = 2,
guv_sfc = 0.0003, 0.0003, 0.0003,
gt_sfc = 0.0003, 0.0003, 0.0003,
gq_sfc = 0.0003, 0.0003, 0.0003,
rinblw = 250.,
** Using observation nudging option (note &fdda is a separate namelist record):
&time_control
auxinput11_interval_s = 180 , 180 , 180
auxinput11_end_h = 6 , 6 , 6
&fdda
obs_nudge_opt = 1,1,1,
max_obs = 150000,
fdda_start = 0., 0., 0.,
fdda_end = 720.,720.,720.,
obs_nudge_wind = 1,1,1,
obs_coef_wind = 6.E-4,6.E-4,6.E-4,
obs_nudge_temp = 1,1,1,
obs_coef_temp = 6.E-4,6.E-4,6.E-4,
obs_nudge_mois = 1,1,1,
obs_coef_mois = 6.E-4,6.E-4,6.E-4,
obs_rinxy = 240.,240.,180.,
obs_rinsig = 0.1,
obs_twindo = 0.6666667,0.6666667,0.6666667,
obs_npfi = 10,
obs_ionf = 2, 2, 2,
obs_idynin = 0,
obs_dtramp = 40.,
obs_prt_freq = 10, 10, 10,
obs_prt_max = 10
obs_ipf_errob = .true.
obs_ipf_nudob = .true.
obs_ipf_in4dob = .true
obs_no_pbl_nudge_uv = 0
obs_no_pbl_nudge_t = 0
obs_no_pbl_nudge_q = 0
obs_sfc_scheme_horiz = 0
obs_sfc_scheme_vert = 0
obs_max_sndng_gap = 20
obs_nudgezfullr1_uv = 50
obs_nudgezrampr1_uv = 50
obs_nudgezfullr2_uv = 50
obs_nudgezrampr2_uv = 50
obs_nudgezfullr4_uv = -5000
obs_nudgezrampr4_uv = 50
obs_nudgezfullr1_t = 50
obs_nudgezrampr1_t = 50
obs_nudgezfullr2_t = 50
obs_nudgezrampr2_t = 50
obs_nudgezfullr4_t = -5000
obs_nudgezrampr4_t = 50
obs_nudgezfullr1_q = 50
obs_nudgezrampr1_q = 50
obs_nudgezfullr2_q = 50
obs_nudgezrampr2_q = 50
obs_nudgezfullr4_q = -5000
obs_nudgezrampr4_q = 50
obs_nudgezfullmin = 50
obs_nudgezrampmin = 50
obs_nudgezmax = 3000
obs_sfcfact = 1.0
obs_sfcfacr = 1.0
obs_dpsmx = 7.5
/
** Using spectral nudging option
&fdda
grid_fdda = 2, 2, 2,
gfdda_inname = "wrffdda_d<domain>",
gfdda_end_h = 24, 24, 24,
gfdda_interval_m = 360, 360, 360,
fgdt = 0, 0, 0,
fgdtzero = 0, 0, 0,
if_no_pbl_nudging_uv = 0, 0, 0,
if_no_pbl_nudging_t = 0, 0, 0,
if_no_pbl_nudging_ph = 0, 0, 0,
if_zfac_uv = 0, 0, 0,
k_zfac_uv = 10, 10, 10,
if_zfac_t = 0, 0, 0,
k_zfac_t = 10, 10, 10,
if_zfac_ph = 0, 0, 0,
k_zfac_ph = 10, 10, 10,
dk_zfac_uv = 1, 1, 1,
dk_zfac_t = 1, 1, 1,
dk_zfac_ph = 1, 1, 1,
guv = 0.0003, 0.0003, 0.0003,
gt = 0.0003, 0.0003, 0.0003,
gph = 0.0003, 0.0003, 0.0003,
xwavenum = 3
ywavenum = 3
if_ramping = 1,
dtramp_min = 60.0,
io_form_gfdda = 2,
** Using adaptive time step option (add these in namelist record &domains):
use_adaptive_time_step = .true.,
step_to_output_time = .true.,
target_cfl = 1.2, 1.2, 1.2,
target_hcfl = .84, .84, .84,
max_step_increase_pct = 5, 51, 51,
starting_time_step = -1, -1, -1,
max_time_step = 360, 120, 40,
min_time_step = 90, 30, 10,
adaptation_domain = 1,
** Using automatic vortex-following option (tropical storm tracking only;
add these in namelist record &domains):
vortex_interval = 15, 15, 15,
max_vortex_speed = 40, 40, 40,
corral_dist = 8, 15, 15,
track_level = 50000,
** Using different flux formulation for tropical storm simulations
(more effective when grid sizes are smaller than 2 km), and simple
1-D ocean mixed layer (add these in namelist record &physics):
isftcflx = 1,
omlcall = 1,
oml_hml0 = 50,
oml_gamma = 0.14
** Miscellaneous physics options for namelist record &physics:
Topographic shading (only effective when grid sizes are a few kilometers)
slope_rad = 1, 1, 1,
topo_shading = 1, 1, 1,
shadlen = 25000,
Setting threashold value for defining seaice if seaice is not in the input file:
seaice_threshold = 271,
Switching off latent heating from a microphysics scheme (must also set cu_physics = 0):
no_mp_heating = 0,
** Using precipiatiion bucket in a time interval (minutes):
prec_acc_dt = 60.
** Using bucket accumulations for multi-year simulations (guideline: mean monthly accumulation)
bucket_mm = 100.
bucket_J = 1.e9
** Optional gravitational settling of fog/cloud droplets (MYNN PBL only)
grav_settling = 1, ; default 0
** Using implicit gravity-wave damping option (add these in namelist record &dynamics):
damp_opt = 3,
zdamp = 5000., 5000., 5000.,
dampcoef = 0.2, 0.2, 0.2
** Using expanded boundary zone and exponential decay option (add or modify these in
namelist record &bdy_control):
spec_bdy_width = 10,
spec_zone = 1,
relax_zone = 9,
specified = .true., .false.,.false.,
spec_exp = 0.33
For a tropical channel configuration, set the following:
specified = .true., .false.,.false.,
periodic_x = .true., .false.,.false.,
** using io quilting option to improve output efficiency for large domain runs
(note that this is a separate namelist record):
&namelist_quilt
nio_tasks_per_group = 2,
nio_groups = 1,
** for tc bogusing:
&tc
insert_bogus_storm = .true.,
remove_storm = .true.,
num_storm = 1,
latc_loc = 15.,
lonc_loc = -90.,
vmax_meters_per_second = 30,
rmax = 50000,
vmax_ratio = 0.5,
/
** for regional climate surface diagnostics such as max/min/mean/std of T2/Q2/wind/rainfall
between selected output times (e.g. daily) in auxhist3
&time_control
output_diagnostics = 1
auxhist3_outname = 'wrfxtrm_d<domain>_<date>'
io_form_auxhist3 = 2
auxhist3_interval = 1440
frames_per_auxhist3 = 1
/