Removal of Content Advisory - April 2024

Advisory to Gridpoint Statistical Interpolation (GSI) users: As of the beginning of April 2024, all support assets for Gridpoint Statistical Interpolation (GSI) will be removed from the DTC website. Users should download all reference materials of interest prior to April 2024.

Community GSI Version 3.6 and EnKF Version 1.2

Release Date:

The Community GSI Version 3.6 and EnKF Version 1.2 was released on September 19, 2017.

Release Notes

  • This version GSI code is based on revision r1861 of the GSI community trunk, last updated on September 19th of 2017. 

    The community GSI code, in addition to the features/tools from previous releases, contains more community-friendly features such as:

    • A separate directory called dtc/ which contains all the files needed for compile and run GSI and EnKF as a community version. 
    • Added support for WRF Chem analysis, including sample run script and GSI namelist for both WRF-Chem and CMAQ applications 
    • Updated and more sample run scripts for regional and global applications, and with the capability to be used as observation operators for regional and global EnKF applications (under ./dtc/run) 
    • Scripts to generate namelists for regional and global GSI/EnKF applications (under ./dtc/run) 

Tests

The comGSI V3.6 has been successfully tested with the following compiler versions

For PGI compiler

PGI pgf90 versions: V15.7, V16.5, V17.5

For Intel compiler

Intel ifort versions: V15.0.3, V16.0.3, V17.0.1

For GNU compiler

Gfortran versions: V5.4.0

On-line tutorials


Known Issues and Fixes

Version 3.6 of the community GSI release has been tested successfully tested with the following compilers:

  • Intel; V17.0.1, 16.0.3, 15.0.3, 14.02
  • PGI; 17.5, 16.5, 15.7
  • GNU; 5.4.0 only

Currently it is known that GSI crashes under Intel v18.0+. This is due to a compiler bug in Intel v18+. We had reported the bug to Intel and Intel is intended to release a fix in v18.3+. We had made a workaround solution which can solve this crash. You may wait for intel v18.3+ or download our work-around fix here comGSIv3.6_EnKFv1.2-R1 tar ball