ASCII files that are used in the GSI by various applications to describe the characteristics of the system.
These include (but are not limited to):
- observation error specifications for conventional and satellite-based measurements
- observation rejection and acceptance lists
- background error covariance specifications
- hybrid covariance weights
- control and state vector descriptions
Binary files used by the GSI are NOT in GSI-fix. Instead, GSI binary fix files are available from two sources:
- staged in directory
GSI_BINARY_SOURCE_DIRon WCOSS2 and select NOAA RHDPCS machines. VariableGSI_BINARY_SOURCE_DIRis defined in GSImodulefiles/gsi_$machine.luafor some, but not all, machines. - downloadable as a tarball from https://ftp.emc.ncep.noaa.gov/static_files/public/gsi.
The top level directory structure groups the files as follow:
| File/directory | Purpose |
|---|---|
README.md |
This file with basic pointers to more information. |
LICENSE.md |
A copy of the GNU Lesser General Public License, Version 3. |
CMakeLists.txt |
CMakeLists file for use with GSI. |
gsi_binary_files.cmake |
List of all binary files used in the GSI. |
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