Data Sets

A number of different data sets are available for practice. For each of these datasets, remember to follow the basic steps to UNPACK the data and write it out to intermediate files.

1. Download data and place in a unique directory
2. Familiarize yourself with the data
3. Link (with the UNIX command ln) the correct Vtable
4. Link (with supplied script link_grib.csh) the input GRIB data
5. Edit namelist.wps. You only need to pay attention to the following parameters:
    start_date ; end_date ; interval_seconds ; prefix
    Note: Normally one will leave the "prefix" set to "FILE", except in cases where this may overwrite data.
6. Run ungrib.exe
7. Familiarize yourself with the intermediate files

 

Available test data sets for the Online Tutorial:

North American data sets

• NAM
• NARR

Global data sets

• GFS
• FNL

Global SST data

• SST