| 
Back to Example List
Plan on
running MM5 later with 3D and SFC FDDA?
Inside the test dataset listed above, you will find the following
files:
JAN00/NCEP_GRIB.200001
JAN00/obs:2000-01-24_00
JAN00/obs:2000-01-24_06
JAN00/obs:2000-01-24_12
JAN00/obs:2000-01-24_18
JAN00/obs:2000-01-25_00
JAN00/obs:2000-01-25_06
JAN00/obs:2000-01-25_12
JAN00/obs:2000-01-25_18
JAN00/obs:2000-01-26_00
JAN00/surface_obs_r:2000-01-24_00
JAN00/surface_obs_r:2000-01-24_03
JAN00/surface_obs_r:2000-01-24_06
JAN00/surface_obs_r:2000-01-24_09
JAN00/surface_obs_r:2000-01-24_12
JAN00/surface_obs_r:2000-01-24_15
JAN00/surface_obs_r:2000-01-24_18
JAN00/surface_obs_r:2000-01-24_21
JAN00/surface_obs_r:2000-01-25_00
JAN00/surface_obs_r:2000-01-25_03
JAN00/surface_obs_r:2000-01-25_06
JAN00/surface_obs_r:2000-01-25_09
JAN00/surface_obs_r:2000-01-25_12
JAN00/surface_obs_r:2000-01-25_15
JAN00/surface_obs_r:2000-01-25_18
JAN00/surface_obs_r:2000-01-25_21
JAN00/surface_obs_r:2000-01-26_00
The highlighted files are the ones of interest.
The NCEP_GRIB.200001 file is an analysis file that can be used
as input to REGRID.
| |
The obs* files contain
upper-air AND surface data, while the surface_obs_r* files
contain ONLY surface data (i.e., surface data in the
surface_obs_r* files are DUPLICATED in the obs* files).
The advantage of this, is that if you are NOT interested
in creating the SFCFDDA_DOMAIN1 file, the obs* contain all
the information needed and you do not needed the surface_obs_r*
files. |
Below is an extract from the little_r namelist.input file. Listed
are the settings you need to change / pay attention to.
&record1
start_year
= 2000
start_month
= 01
start_day
= 24
start_hour
= 00
end_year
= 2000
end_month
= 01
end_day
= 26
end_hour
= 00
interval
= 21600/
&record2
fg_filename
= '../REGRID/regridder/REGRID_DOMAIN1'
obs_filename
= './JAN00/obs:2000-01-24_00'
'./JAN00/obs:2000-01-24_06'
'./JAN00/obs:2000-01-24_12'
'./JAN00/obs:2000-01-24_18'
'./JAN00/obs:2000-01-25_00'
'./JAN00/obs:2000-01-25_06'
'./JAN00/obs:2000-01-25_12'
'./JAN00/obs:2000-01-25_18'
'./JAN00/obs:2000-01-26_00'
sfc_obs_filename
= './JAN00/surface_obs_r:2000-01-24_00'
'./JAN00/surface_obs_r:2000-01-24_03'
'./JAN00/surface_obs_r:2000-01-24_06'
'./JAN00/surface_obs_r:2000-01-24_09'
'./JAN00/surface_obs_r:2000-01-24_12'
'./JAN00/surface_obs_r:2000-01-24_15'
'./JAN00/surface_obs_r:2000-01-24_18'
'./JAN00/surface_obs_r:2000-01-24_21'
'./JAN00/surface_obs_r:2000-01-25_00'
'./JAN00/surface_obs_r:2000-01-25_03'
'./JAN00/surface_obs_r:2000-01-25_06'
'./JAN00/surface_obs_r:2000-01-25_09'
'./JAN00/surface_obs_r:2000-01-25_12'
'./JAN00/surface_obs_r:2000-01-25_15'
'./JAN00/surface_obs_r:2000-01-25_18'
'./JAN00/surface_obs_r:2000-01-25_21'
'./JAN00/surface_obs_r:2000-01-26_00'
/
&record7
use_first_guess
= .TRUE.
f4d
= .TRUE.
intf4d
= 10800
| |
The "interval"
parameter in record1 needs to be the same interval as
in the REGRID_DOMAIN1 file and the input data used in
"obs_filename".
The "intf4d" parameter in record7 needs to
be the same interval as the "sfc_obs_filename".
"sfc_obs_filename" is ONLY used if "f4d"
is TRUE. |
This will create
the following files:
LITTLE_R_DOMAIN1
Needed as input
for INTERPF
SFC_FDDA_DOMAIN1
Needed as input
for MM5 if SFC
FDDA is used
|
