GEOS-Chem chemistry mechanisms: Difference between revisions

Revision as of 20:56, 30 September 2013

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

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

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

Mechanism	Description	Nickname	Solvers
standard	NOx-Ox-hydrocarbon-aerosol species	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	Paulot isoprene scheme	SMVGEAR, KPP

Prior to the release of GEOS-Chem v9-01-03, several new bromine tracers and species were added to the standard mechanism.

--Bob Y. 16:56, 30 September 2013 (EDT)

@@ Line 16: / Line 16: @@
 !width="100px"|Mechanism
 !width="500px"|Description
+!width="100px"|Nickname
 !width="150px"|Solvers
@@ Line 21: / Line 22: @@
 |[[NOx-Ox-HC-aerosol|standard]]
 |
-*NOx-Ox-hydrocarbon-aerosol species (aka "the full-chemistry mechanism")
+*NOx-Ox-hydrocarbon-aerosol species
+|fullchem
 |SMVGEAR, KPP
@@ Line 29: / Line 31: @@
 *NOx-Ox-hydrocarbon-aerosol species
 *PLUS secondary organic aerosol species
+|SOA
 |SMVGEAR, KPP
@@ Line 36: / Line 39: @@
 *NOx-Ox-hydrocarbon-aerosol species
 *PLUS dicarbonyl species
+|Dicarbonyls
 |SMVGEAR only
@@ Line 43: / Line 47: @@
 *NOx-Ox-hydrocarbon-aerosol species
 *PLUS isoprene oxidation products
+|Paulot isoprene scheme
 |SMVGEAR, KPP
 |}
-All of these mechanisms (with the exception of the dicarbonyls simulation) are compatible with both the SMVGEAR solver and the KPP solver.  The dicarbonyls mechanism only works with SMVGEAR.
-Prior to the release of [[GEOS-Chem v9-01-03]], several new [[Bromine chemistry mechanism|bromine tracers and species]] were added to the s
+Prior to the release of [[GEOS-Chem v9-01-03]], several new [[Bromine chemistry mechanism|bromine tracers and species]] were added to the standard mechanism.
+--[[User:Bmy|Bob Y.]] 16:56, 30 September 2013 (EDT)
 === Mechanisms in GEOS-Chem v9-02 and later versions ===