GEOS-Chem chemistry mechanisms: Difference between revisions

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Several modifications were made to the chemistry mechanisms that shipped with [[GEOS-Chem v9-01-03]].
Several modifications were made to the chemistry mechanisms that shipped with [[GEOS-Chem v9-01-03]].
The existing
In GEOS-Chem v9-01-03, users could select from one of four pre-defined chemistry mechanisms:


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{| border=1 cellspacing=0 cellpadding=5  
|-bgcolor="#CCCCCC"
|-bgcolor="#CCCCCC"
!width="100px"|Mechanism
!width="100px"|Mechanism
!width="350x"|Description
!width="500px"|Description
!width="175px"|Nickname
!width="175px"|Nickname
!width="150px"|Solvers
!width="150px"|Solvers

Revision as of 21:18, 30 September 2013

On this page, we provide an overview of the chemistry mechanisms used in GEOS-Chem.

Overview

NOx-Ox-hydrocarbon-aerosol chemistry and variants

The standard NOx-Ox-hydrocarbon-aerosol (aka "full-chemistry") simulation has undergone several updates in recent GEOS-Chem versions. We

Mechanisms in GEOS-Chem v9-01-03 and prior versions

In GEOS-Chem v9-01-03, users could select from one of four pre-defined chemistry mechanisms:

Mechanism Description Nickname Solvers
standard Full-chemistry or fullchem
  • SMVGEAR
  • KPP
SOA
  • NOx-Ox-hydrocarbon-aerosol species
  • PLUS secondary organic aerosol species
SOA
  • SMVGEAR
  • KPP-
Dicarbonyls
  • NOx-Ox-hydrocarbon-aerosol species
  • PLUS dicarbonyl species
Dicarbonyls
  • SMVGEAR only
isoprene
  • NOx-Ox-hydrocarbon-aerosol species
  • PLUS isoprene oxidation products
Caltech isoprene scheme,
Paulot isoprene scheme
  • SMVGEAR
  • KPP

The bromine tracers and species were added to the standard mechanism just prior to the release of GEOS-Chem v9-01-03.

-Bob Y. 17:00, 30 September 2013 (EDT)

Mechanisms in GEOS-Chem v9-02 and later versions

Several modifications were made to the chemistry mechanisms that shipped with GEOS-Chem v9-01-03.

Mechanism Description Nickname Solvers
standard Full-chemistry or fullchem
  • SMVGEAR
  • KPP
SOA
  • NOx-Ox-hydrocarbon-aerosol species
  • PLUS secondary organic aerosol species
SOA
  • SMVGEAR
  • KPP-
Dicarbonyls
  • NOx-Ox-hydrocarbon-aerosol species
  • PLUS dicarbonyl species
Dicarbonyls
  • SMVGEAR only

--Bob Y. 17:17, 30 September 2013 (EDT)

Solvers