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LITTLE_R Tutorial : Data

 

Input data for the OnLine Tutorial SOC case is available from NCAR's ftp site. Download the test data input2little_r.tar, and place it in your LITTLE_R/ directory. After you untar it, you should see a new directory Test_data/

cd Test_data
ls -l

-rw-r--r--   1 mesouser users    7815812 Feb 14  2000 REGRID_DOMAIN1.gz
-rw-r--r--   1 mesouser users     145692 Feb  2  1999 obs-13_00.gz
-rw-r--r--   1 mesouser users      49773 Feb  2  1999 obs-13_06.gz
-rw-r--r--   1 mesouser users     153401 Feb  2  1999 obs-13_12.gz
-rw-r--r--   1 mesouser users      62591 Feb  2  1999 obs-13_18.gz
-rw-r--r--   1 mesouser users     141449 Feb  2  1999 obs-14_00.gz
-rw-r--r--   1 mesouser users      64216 Dec  6 15:16 surface_obs_r:1993-03-13_00.gz
-rw-r--r--   1 mesouser users      23726 Dec  6 15:16 surface_obs_r:1993-03-13_03.gz
-rw-r--r--   1 mesouser users      53761 Dec  6 15:16 surface_obs_r:1993-03-13_06.gz
-rw-r--r--   1 mesouser users      19994 Dec  6 15:16 surface_obs_r:1993-03-13_09.gz
-rw-r--r--   1 mesouser users      63674 Dec  6 15:16 surface_obs_r:1993-03-13_12.gz
-rw-r--r--   1 mesouser users      25532 Dec  6 15:16 surface_obs_r:1993-03-13_15.gz
-rw-r--r--   1 mesouser users      63674 Dec  6 15:16 surface_obs_r:1993-03-13_18.gz
-rw-r--r--   1 mesouser users      18258 Dec  6 15:16 surface_obs_r:1993-03-13_21.gz
-rw-r--r--   1 mesouser users      64219 Dec  6 15:16 surface_obs_r:1993-03-14_00.gz

gunzip all files by typing gunzip *, and you'll have

-rw-r--r--   1 mesouser users   10061640 Feb 14 13:55 REGRID_DOMAIN1
-rw-r--r--   1 mesouser users    3119729 Feb  2  1999 obs-13_00
-rw-r--r--   1 mesouser users    1136846 Feb  2  1999 obs-13_06
-rw-r--r--   1 mesouser users    3250114 Feb  2  1999 obs-13_12
-rw-r--r--   1 mesouser users    1426484 Feb  2  1999 obs-13_18
-rw-r--r--   1 mesouser users    3025161 Feb  2  1999 obs-14_00
-rw-r--r--   1 mesouser users      64216 Dec  6 15:16 surface_obs_r:1993-03-13_00
-rw-r--r--   1 mesouser users      23726 Dec  6 15:16 surface_obs_r:1993-03-13_03
-rw-r--r--   1 mesouser users      53761 Dec  6 15:16 surface_obs_r:1993-03-13_06
-rw-r--r--   1 mesouser users      19994 Dec  6 15:16 surface_obs_r:1993-03-13_09
-rw-r--r--   1 mesouser users      63674 Dec  6 15:16 surface_obs_r:1993-03-13_12
-rw-r--r--   1 mesouser users      25532 Dec  6 15:16 surface_obs_r:1993-03-13_15
-rw-r--r--   1 mesouser users      63674 Dec  6 15:16 surface_obs_r:1993-03-13_18
-rw-r--r--   1 mesouser users      18258 Dec  6 15:16 surface_obs_r:1993-03-13_21
-rw-r--r--   1 mesouser users      64219 Dec  6 15:16 surface_obs_r:1993-03-14_00

REGRID_DOMAIN1:

- REGRID_DOMAIN1 is the output file from REGRID.
- You can use this one, or the one you created if you have run REGRID successfully (it is recommended to use the one you created).

obs files:

- Files with prefix 'obs' and a time stamp are pre-processed observations that contains both upperair and surface observations for that time (the source of the data is NCAR's ADP).

surface files:

- Files with prefix 'surface' and a time stamp are pre-processed SURFACE observations for that time.
- These surface observations are the same as the surface observations that are included in the 'obs' files.
- They are exclusively used for the new FDDA feature build into LITTLE_R since v3.5.
- If you do not plan on using FDDA (variable "f4d", record7 of namelist), you do not need these files.

 

Now you are ready to work with LITTLE_R.

 

In the example pages we will direct you to other datasets we have available for running test cases.

If you need data for you own cases, please see "Where to find Observational Data" on the MM5 Homepages

 

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