Questions about the setting of the SST in WRF-ROMS coupling mode

General scientific issues regarding ROMS

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zhaolv
Posts: 39
Joined: Thu Nov 11, 2021 3:56 pm
Location: Changsha University of Science and Technology

Questions about the setting of the SST in WRF-ROMS coupling mode

#1 Unread post by zhaolv »

I have recently been using the wrf-roms coupling mode. When looking into to SST, it was found that the sea surface temperature obtained from the roms simulation does not basically change with time. That is, the sst does not produce a diurnal temperature difference. There is also little change in SST during typhoon transit.(as shown in the figure, temperature changes are selected offshore)
I am wondering if this is a problem with the ".h" file settings.
I have placed the file and parameters below and look forward to your guidance.
Attachments
roms_mangkhut_r1.in
(153.6 KiB) Downloaded 79 times
mangkhut.h
(1.71 KiB) Downloaded 89 times
Last edited by zhaolv on Mon Sep 26, 2022 6:57 am, edited 1 time in total.

zhaolv
Posts: 39
Joined: Thu Nov 11, 2021 3:56 pm
Location: Changsha University of Science and Technology

Re: Questions about the setting of the SST in WRF-ROMS coupling mode

#2 Unread post by zhaolv »

Here are the parameters I have set in wrf mode. I used the wrflowinp file generated by wrf for the start of wrf-roms mode.
&time_control
run_days = 0,
run_hours = 96,
run_minutes = 0,
run_seconds = 0,
start_year = 2018, 2018,
start_month = 09, 09,
start_day = 13, 13,
start_hour = 00, 00,
start_minute = 00, 00,
start_second = 00, 00,
end_year = 2018, 2018,
end_month = 09, 09,
end_day = 17, 17,
end_hour = 00, 00,
end_minute = 00, 00,
end_second = 00, 00,
interval_seconds = 21600,
input_from_file = .true., .true.,
history_interval = 60, 60,
frames_per_outfile = 1000, 1000,
restart = .false.,
restart_interval = 5000,
io_form_history = 2,
io_form_restart = 2,
io_form_input = 2,
io_form_boundary = 2,
debug_level = 0,
io_form_auxinput4 = 2,
auxinput4_inname = "wrflowinp_d<domain>",
auxinput4_interval = 360, 360,
/

&domains
eta_levels = 1.000, 0.9677, 0.9355, 0.9032, 0.871,
0.8387, 0.8065, 0.7742, 0.7419, 0.7097,
0.6774, 0.6452, 0.6129, 0.5806, 0.5484,
0.5161, 0.4839, 0.4516, 0.4194, 0.3871,
0.3548, 0.3226, 0.2903, 0.2581, 0.2258,
0.1935, 0.1613, 0.129, 0.0968, 0.0645,
0.0323, 0.000,
time_step = 30,
time_step_fract_num = 0,
time_step_fract_den = 1,
max_dom = 2,
e_we = 260, 466,
e_sn = 190, 325,
e_vert = 32, 32,
p_top_requested = 5000.0,
num_metgrid_levels = 32,
num_metgrid_soil_levels = 4,
dx = 9000, 3000,
dy = 9000, 3000,
grid_id = 1, 2,
parent_id = 0, 1,
i_parent_start = 1, 65,
j_parent_start = 1, 42,
parent_grid_ratio = 1, 3,
parent_time_step_ratio = 1, 3,
feedback = 1,
smooth_option = 0,
/

&physics
mp_physics = 6, 6,
ra_lw_physics = 4, 4,
ra_sw_physics = 4, 4,
radt = 9, 3,
sf_sfclay_physics = 1, 1,
sf_surface_physics = 2, 2,
bl_pbl_physics = 1, 1,
bldt = 0, 0,
cu_physics = 1, 1,
cudt = 5, 5,
isfflx = 1,
ifsnow = 0,
icloud = 1,
surface_input_source = 3,
num_soil_layers = 4,
num_land_cat = 21,
sf_urban_physics = 0, 0,
sst_update = 1,
/

&fdda
/

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

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

&grib2
/

&namelist_quilt
nio_tasks_per_group = 0,
nio_groups = 1,
/

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