Fix bug preventing CMAQ from running using SAPRC mechanisms #226
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Contact:
Chris Nolte US EPA
Type of code change:
Bug fix
Description of changes:
CMAQ currently crashes when using any of the SAPRC07 mechanisms. A recent update specified that nitryl chloride (CLNO2) should be written to the DRYDEP and WETDEP1 files. However, in the GC namelist files for the SAPRC mechanisms, CLNO2 does not have a dry deposition velocity and does not undergo dry deposition. The fix is to specify that CLNO2 does undergo dry deposition.
Summary of Impact:
This fix resolves the inconsistency and allows the model to run with SAPRC mechanisms. Since this fix involves only the input namelist files, it is not necessary to recompile the model.
Tests Conducted
Model was run using 2010_4CALIF1 mechanism using all 3 SAPRC mechanisms. (See internal PR1197).