Problem running 3DVAR with RANDOMCV

Issues with running 3DVAR.

Problem running 3DVAR with RANDOMCV

Postby krishna1990 » Mon Nov 06, 2017 9:53 am

Hi all,

I am running 3DVAR with RANDOMCV to generate initial peturbations.

I am using the following namelist options.

---------------------------------
&wrfvar1
var4d=false,
print_detail_grad=false,
/
&wrfvar2
/
&wrfvar3
ob_format=2,
/
&wrfvar4
use_synopobs = .false.,
use_shipsobs = .false.,
use_metarobs = .false.,
use_soundobs = .false.,
use_pilotobs = .false.,
use_airepobs = .false.,
use_geoamvobs = .false.,
use_polaramvobs = .false.,
use_bogusobs = .false.,
use_buoyobs = .false.,
use_profilerobs = .false.,
use_satemobs = .false.,
use_gpspwobs = .false.,
use_gpsrefobs = .false.,
use_qscatobs = .false.,
use_radarobs = .false.,
use_radar_rv = .false.,
use_radar_rf = .false.,
use_airsretobs = .false.,
/
&wrfvar5
put_rand_seed = .true.,
/
&wrfvar6
max_ext_its=1,
ntmax=50,
orthonorm_gradient=true,
/
&wrfvar7
cv_options=3,
as1 = 0.75, 2.0, 1.5,
as2 = 0.75, 2.0, 1.5,
as3 = 0.75, 2.0, 1.5,
as4 = 0.75, 2.0, 1.5,
as5 = 0.75, 2.0, 1.5,
/
&wrfvar8
/
&wrfvar9
/
&wrfvar10
test_transforms=false,
test_gradient=false,
/
&wrfvar11
seed_array1 = 20171127,
seed_array2 = 001,
/
&wrfvar12
/
&wrfvar13
/
&wrfvar14
/
&wrfvar15
/
&wrfvar16
/
&wrfvar17
analysis_type = 'RANDOMCV',
/
&wrfvar18
analysis_date="2015-11-27_12:00:00.0000",
/
&wrfvar19
/
&wrfvar20
/
&wrfvar21
time_window_min="2015-11-27_12:00:00.0000",
/
&wrfvar22
time_window_max="2015-11-27_12:00:00.0000",
/
&wrfvar23
/
&time_control
start_year=2015
start_month=11
start_day=27
start_hour=12,
end_year=2015
end_month=11
end_day=27
end_hour=12,
/
&fdda
/
&domains
e_we=250,
e_sn=200,
e_vert=30,
dx=15000,
dy=15000,
/
&dfi_control
/
&tc
/
&physics
mp_physics=1,
ra_lw_physics=1,
ra_sw_physics=1,
radt=30,
sf_sfclay_physics=1,
sf_surface_physics=2,
bl_pbl_physics=1,
cu_physics=14,
cudt=5,
num_soil_layers=4,
/
&scm
/
&dynamics
/
&bdy_control
/
&grib2
/
&fire
/
&namelist_quilt
/
&perturbation
/
----------------------------------


When i run the da_wrfvar.exe it is not proceeding after the "Minimize cost function using CG method" message.

Can anyone help me with this.

Thank you in advance.
krishna1990
 
Posts: 11
Joined: Mon Feb 17, 2014 10:52 pm

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