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[FEATURE REQUEST] add MO2 + NO3 reaction #1235

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kelvinhb opened this issue May 4, 2022 · 5 comments · Fixed by #1444
Closed

[FEATURE REQUEST] add MO2 + NO3 reaction #1235

kelvinhb opened this issue May 4, 2022 · 5 comments · Fixed by #1444
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@yantosca
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category: Feature Request New feature or request topic: Chemical Mechanisms Related to KPP and/or GEOS-Chem chemistry mechanisms
Milestone
14.1.0

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@kelvinhb
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kelvinhb commented May 4, 2022

Request a new GEOS-Chem feature:

Hi team! Daniel and I think we should add a new reaction to KPP:

MO2 + NO3 = NO2 + CH2O + HO2 : 1.20d-12;

It's well-documented by IUPAC (https://iupac-aeris.ipsl.fr/htdocs/datasheets/pdf/ROO_19_CH3O2_NO3.pdf) and even though it probably won't make much difference in most of the atmosphere, it could play a role in the methyl peroxy budget under some circumstances (like remote areas where the peroxy radical lifetime is long but where long-range NOx transport can still provide an NO3 source). Let me know if there are any questions on this!

-Kelvin
@kelvinhb kelvinhb added the category: Feature Request New feature or request label May 4, 2022
@yantosca yantosca self-assigned this May 4, 2022
@yantosca yantosca added the topic: Chemical Mechanisms Related to KPP and/or GEOS-Chem chemistry mechanisms label May 4, 2022
@yantosca yantosca added this to the 14.0.0 milestone May 4, 2022
@yantosca
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yantosca commented May 4, 2022

Hi @kelvinhb, thanks for the heads-up! This could be added to 14.0.0, which is the next version that we'll run benchmarks for.

@kelvinhb
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kelvinhb commented May 4, 2022

Sounds great!

@yantosca yantosca modified the milestones: 14.0.0, 14.1.0 May 19, 2022
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@kelvinhb, we are working on bringing this into 14.1.0.

yantosca added a commit that referenced this issue Oct 18, 2022
@yantosca
Add MO2 + NO3 = NO2 + CH2O + HO2 reaction via KPP
234c429 
This commit adds the reaction requested in geoschem/geos-chem #1235

KPP/custom/custom.eqn
KPP/fullchem/fullchem.eqn
- Added MO2 + NO3 = NO2 + CH2O + HO2 with constant rxn rate of 1.0d-12

KPP/fullchem/*.map
KPP/fullchem/gckpp*.F90
- Rebuilt with KPP 2.5.0

NOTE: We will bring this update in with KPP 2.5.0 and then rebuild the
mechanism with KPP 3.0.0 before releasing GEOS-Chem 14.1.0.

Signed-off-by: Bob Yantosca <yantosca@seas.harvard.edu>
@yantosca yantosca mentioned this issue Oct 18, 2022
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@yantosca yantosca linked a pull request Oct 18, 2022 that will close this issue
Add MO2 + NO3 = NO2 + CH2O + HO2 reaction via KPP #1444
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@msulprizio
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This update has now been merged into the dev/14.1.0 branch.

@msulprizio
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1-month benchmark output documenting the impact of this fix can be found at:

https://gc-dashboard.org/difference?primary_key=diff-gcc-4x5-1Mon-14.1.0-alpha.0-gcc-4x5-1Mon-14.1.0-alpha.1

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category: Feature Request New feature or request topic: Chemical Mechanisms Related to KPP and/or GEOS-Chem chemistry mechanisms
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14.1.0
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Add MO2 + NO3 = NO2 + CH2O + HO2 reaction via KPP geoschem/geos-chem
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@msulprizio @yantosca @kelvinhb