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CMAQv5.3
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@bnmurphy bnmurphy released this 27 Aug 14:53
CMAQv5.3_27Aug2019
b406d24

DOI

CMAQv5.3, the latest version of the Community Multiscale Air Quality modeling system (release date August 27 2019), includes many new scientific and use-oriented features.

Science Features:

  • Updated chlorine chemistry
  • Updated OMI data through 2017, new photolysis relevant diagnostic variables exported (e.g. AOD, single-scattering albedo, etc)
  • Extended Kinetic Mass Transfer Module for cloud chemistry (KMT2; optional)
  • Consolidated anthropogenic secondary organic aerosol into reduced number of species
  • Revised biogenic secondary organic aerosol yields for alpha-pinene ozonolysis to substantially increase monoterpene derived SOA predicted by the model.
  • Added water uptake by organic compounds
  • Revised deposition parameterizations for gas and aerosol uptake.
  • Introduced STAGE model which treats tiled deposition fluxes as a function of all land use types in a grid cell (optional).

User-Oriented Features:

  • New comprehensive User's Guide now available!
  • Improved and expanded capabilities for the Integrated Source Apportionment Method (ISAM).
  • Introduced new Detailed Emission Scaling, Isolation, and Diagnostics module (DESID).
  • Revised log file for enhanced transparency and clarity.
  • Introduced vertical extraction module for isolating, for example, ozone sonde data without printing full 4D grid.
  • Improved process analysis with Integrated Reaction Rate (IRR) functionality for all mechanisms and aerosol sub-process accounting.

See the Release Notes for more details regarding these updates.

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