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Add trop+strat chemistry scheme #100

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gold2718 opened this issue Oct 12, 2023 · 0 comments
Open

Add trop+strat chemistry scheme #100

gold2718 opened this issue Oct 12, 2023 · 0 comments
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@DirkOlivie
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enhancement New feature or request
Milestone
NorESM2.3

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@gold2718
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gold2718 commented Oct 12, 2023 •
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What is the feature/what would you like to discuss?

Add a new chemistry scheme that covers both the troposphere and stratosphere for the NorESM2.3 release.
Note, this scheme will include both bromoform and explicit volcanic emissions.

Will this change (regression test) answers?

A new regression test will be introduced

Will you be implementing this enhancement yourself?

No
@gold2718 gold2718 added the enhancement New feature or request label Oct 12, 2023
@gold2718 gold2718 added this to the NorESM2.1 milestone Oct 12, 2023
@gold2718 gold2718 mentioned this issue Oct 12, 2023
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@gold2718 gold2718 modified the milestones: NorESM2.1, NorESM2.3 Nov 8, 2023
@DirkOlivie DirkOlivie mentioned this issue May 30, 2024
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gold2718 added a commit that referenced this issue Sep 19, 2024
@gold2718
Merge pull request #149 from DirkOlivie/PR_fullchem
1450ca0 
Summary: Introduction of the ability to run with more complex atmospheric gas-phase chemistry.

Contributors: Dirk Olivié
Reviewers: Steve Goldhaber

Purpose of changes: #100 Add trop+strat chemistry scheme. The new scheme is a
combination of the aerosols from OSLO_AERO and the gas-phase species from the TS1 chemistry (pp_trop_strat_mam4_vbs).

Github PR URL: #149
Changes made to build system: None
Changes made to the namelist:

- The namelist used by the new compsets contains elements from the standard aerosol-only
NorESM namelist, but some external forcings have been removed as not used anymore
(ozone climatology, ozone climatology, volcanic stratospheric AOD).
- New things are : more emissions files are used, more GHGs/ODSs are prescribed, and the
lightning NOx scaling factor is now used.
- Concerning MEGAN fluxes from the land-model : more species are mapped into
monoterpene (to make it more in line with CESM).
- 3D-chemical species are taken into account in the radiation

Changes to the defaults for the boundary datasets:
- there are additional emission files
- some climatologies are not used anymore (ozone, oxidants)

Substantial timing or memory changes: an N1850_f19_tn14 simulation on 1024 CPUs is
much slower. The throughput is 8.67 simulated years/day (compared to 19.84 simulated
years/day in aerosol-only version)

Detailed description of changes :
General files :
bld/config_files/definition.xml [new chemical package "tropstrat_mam_oslo]

Files in specific chemistry directory pp_tropstrat_mam_oslo (generated by chemical preprocessor):

Test run: ERP_D_Ln9.f19_f19_mtn14.NF1850norbc_tropstratchem.betzy_intel.cam-outfrq
aux_cam_noresm tests are BFB except for this new test
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@DirkOlivie DirkOlivie

Labels
enhancement New feature or request
Projects
NorESM Development
Status: In Progress
Milestone
NorESM2.3
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@gold2718 @DirkOlivie