CMAQv5.4 Release Notes: Pre processors and Utilities - fisidi/CMAQ GitHub Wiki

MCIP

The MCIP release notes can be found under the DOCS/MCIP folder.

ICON

No changes were made to ICON in CMAQv5.4.

BCON

No changes were made to BCON in CMAQv5.4.

Create OMI

William T. Hutzell, U.S. Environmental Protection Agency
Type of update: Bug fix and Scripts Update
Release Version/Date: CMAQ Version 5.4
Description: A bug fix and script enhancement was made. The bug fix corrects format statements used to write the ASCII output file. The error and its fix were identified in a CMAS Forum post. When the latitude and longitude resolution is greater than 360X360 degrees, the format descriptors are too small and cause the output lines to wrap around themselves. The error causes the total ozone column to be incorrectly calculated in CCTM and produce bad values of photolysis frequencies from the inline build option. The bad values do not exist in the repositories version of the OMI data file under CCTM/src/phot/inline. The script enhancement revises create_omi's build and run scripts so they function as similar scripts for ICON and BCON tools.
Significance and Impact: If the simulation uses an OMI data file created with lat/long resolution greater than 360X360 degrees, CCTM will calculate and use bad values of photolysis frequencies. References: N/A
Internal PRs PR#779