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CMAQv5.3_specdef_aero.md

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Updates to the Species Definition Files for Organic Aerosols

Havala O. T. Pye, U.S. Environmental Protection Agency

Brief Description

Species definition files (SpecDef*.txt, available in CCTM/src/MECHS/*) provide guidance for post-processing CMAQ species into quantities such as OC, PM2.5, and deposition fluxes. The cb6r3_ae6 SpecDef descriptions of OC and OM were corrected (AGLYJ was missing in v5.2.1). Species definition files were created for aero7.

Significance and Impact

Allows for aero7 post-processing. Aero6 post-processed OC will slightly increase due to corrected formula. CMAQv5.2.1 simulations should also correct their SpecDef files to include AGLYJ.

Affected Files

CCTM/src/MECHS/cb6r3_ae6_aq/SpecDef_Dep_cb6r3_ae6_aq.txt
CCTM/src/MECHS/cb6r3_ae6_aq/SpecDef_cb6r3_ae6_aq.txt
CCTM/src/MECHS/cb6r3_ae7_aq/SpecDef_Dep_cb6r3_ae7_aq.txt
CCTM/src/MECHS/cb6r3_ae7_aq/SpecDef_cb6r3_ae7_aq.txt

Internal Records:

Relevant Pull Requests:

PR #327

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