USEPA/CMAQ

CTM_WVEL must be set to Y in all runscripts

kmfoley opened this issue · 1 comments

Description

CTM_WVEL is a run time science option to write out the vertical velocity component to the concentration file. The default setting, currently, is listed as Y in all runscripts within the repository. If the CTM_WVEL science option is set to N, the model immediately crashes . This is because the array that stores the vertical velocity component for writing to the concentration file is never allocated and is being used to calculate the average vertical velocity to be written to the average concentration file.

Scope and Impact

The model will terminate execution with a segmentation fault.

Solution

Users should leave CTM_WVEL set to Y in all runscripts. A code fix will be included with the next minor CMAQ release.

This issues has been resolved in CMAQv5.3.1.