Noah-MP soil moisture simulation

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Noah-MP soil moisture simulation

Postby Vins_94 » Tue Sep 21, 2021 9:28 am

Dear Experts,
I have run WRF-NoahMP coupled model for my study region and found that the model is simulating almost identical daily climatology of soil moisture for all the layers(0-10,10-40,40-100,100-200 cm). Which seems wrong as all the soil moisture values are in same range. The model was continuously integrated for 7 years excluding initial 2 years for spinup . What could be the potential reasons for getting such results. Your help is greatly appreciated.
NAMELIST:
&time_control
run_days = 0,
run_hours = 0,
run_minutes = 0,
run_seconds = 0,
start_year = 2010,
start_month = 09,
start_day = 17,
start_hour = 00,
start_minute = 00,
start_second = 00,
end_year = 2014,
end_month = 12,
end_day = 31,
end_hour = 18,
end_minute = 00,
end_second = 00,
interval_seconds = 21600,
input_from_file = .true.,
history_interval = 360,
frames_per_outfile = 4,
restart = .true.,
restart_interval = 14400,
override_restart_timers = .true.
write_hist_at_0h_rst = .true.
io_form_history = 2,
io_form_restart = 2,
io_form_input = 2,
io_form_boundary = 2,
debug_level = 0,
nocolons = .false.,

io_form_auxinput4 = 2 !? 11 on cray...parallel netcdf
auxinput4_inname = "wrflowinp_d<domain>"
auxinput4_interval = 360

/

&domains
time_step = 120,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 1,
e_we = 127,
e_sn = 141,
e_vert = 40,
p_top_requested = 5000,
num_metgrid_levels = 38,
num_metgrid_soil_levels = 4,
dx = 30000,
dy = 30000,
grid_id = 1,
parent_id = 1,
i_parent_start = 1,
j_parent_start = 1,
parent_grid_ratio = 1,
parent_time_step_ratio = 1,
feedback = 0,
smooth_option = 0,
sfcp_to_sfcp = .true.,
/


&physics
sst_update = 1,
mp_physics = 6, ! WSM5 scheme
ra_lw_physics = 1, ! RRTM scheme
ra_sw_physics = 1, ! Dudhia scheme
radt = 30, !minutes=dx [km]
sf_sfclay_physics = 1, ! Monin-Obukhov
sf_surface_physics = 4, ! NOAHMP
bl_pbl_physics = 1, ! Yonsei University
bldt = 0,
topo_wind = 0, ! only needed for YSU 1, 1, ! Jimenez method
cu_physics = 1, ! Kain-Fritsch
cudt = 5,
cu_rad_feedback = .true. ! add sub-grid cloud effect to the optical depth in radiation
kfeta_trigger = 2,
isfflx = 1,
ifsnow = 1,
icloud = 1,
surface_input_source = 1,
num_soil_layers = 4,
mp_zero_out = 0,
sf_urban_physics = 0,
maxiens = 1,
maxens = 3,
maxens2 = 3,
maxens3 = 16,
ensdim = 144,
slope_rad = 0,
topo_shading = 0,
num_land_cat = 21,
iz0tlnd = 1,
shcu_physics = 0 ! needs to be 0 with KF schemes
sf_ocean_physics = 0
hail_opt = 1,
tmn_update = 1,
lagday = 150,
sst_skin = 1,
/

&noah_mp ! sooraj krishnan settings
dveg = 4 ! dynamic vegetation option
opt_crs = 1 ! stomata resistance
opt_sfc = 1 ! surface layer drag coefficient
opt_btr = 1 ! soil moisture factor for stomatal resistance
opt_run = 5 ! Miguel-Macho et. al 2007
opt_alb = 1 ! ground surface albedo option
opt_rad = 3 ! radiative transfer scheme
opt_snf = 1 ! Jordan precipitation partitioning between snow and rain
opt_frz = 1 ! super-cooled liquid water option
opt_tbot= 2 ! soil-temperature lower boundary option
opt_stc = 1 ! snow soil temperature time scheme
opt_inf = 1 ! soil permeability
/
&fdda
/

&dynamics
w_damping = 1, !1 for operational
diff_opt = 1,
km_opt = 4,
gwd_opt = 0,
diff_6th_opt = 2,
diff_6th_factor = 0.12,
base_temp = 290.
damp_opt = 3,
zdamp = 5000.,
dampcoef = 0.2
khdif = 0
kvdif = 0
non_hydrostatic = .true.
moist_adv_opt = 1,
scalar_adv_opt = 1,
epssm = 0.1
/

&bdy_control
spec_bdy_width = 5,
spec_zone = 1,
relax_zone = 4,
specified = .true.,
nested = .false.,
/

&grib2
/

&namelist_quilt
nio_tasks_per_group = 0,
nio_groups = 1,
/
Vins_94
 
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Joined: Mon Mar 29, 2021 3:44 pm

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