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| Feature Update | Component | Relevant model | Contibutor(s) | Notes |
|---|---|---|---|---|
| New dust scheme | land and atmosphere: interactive emissions | CESM/CAM-Chem, WACCM and MUSICA | Danny Leung | An updated interactive dust scheme to emit dust into the atmopshere. Will be default in CESM3. (CAM Issue #651) |
| MAM5 aerosols | aerosol mechanism | CESM/CAM-Chem, WACCM and MUSICA | Simone Tilmes, Louisa Emmons, Francis Vitt, Mike Mills | MAM5 (MAM4 + 1 mode for stratospheric sulfate) for all CESM configuration (CAM Issue #663, #664) |
| Soil NOx | online calculation of soil NO emissions | CESM/CAM-Chem, WACCM and MUSICA | Maria Val Martin | Updated Soil NOx emissions (CTSM Issue #1952) |
Top priority for integration (6 months to 1 year)
The list below identifies model updates priorities, that are necessary to improve atmospheric chemistry modeling.
| Feature Update | Component | Relevant model | Contibutor(s) | Notes |
|---|---|---|---|---|
| CMIP7 Forcing | Emissions and external forcing (e.g. solar, volcano, fire) | CESM/CAM-Chem | Benjamin Gaubert, Simone Tilmes, Louisa Emmons, Rebecca Buchholz | https://github.com/NCAR/CMIP7_inputdata_processing |
| MAM5 code for Mid Top CMIP7 simulations | add pull request link? | |||
| TUVx | Photolysis | CESM/CAM-Chem, WACCM and MUSICA | Doug Kinnison | New photolysis scheme. (https://github.com/NCAR/tuv-x) |
| MEGAN v3 | land and atmosphere: interactive emissions | CESM/CAM-Chem, WACCM and MUSICA | Alex Guenther (UCI) | Implement updated interactive biogenic emissions with Model of Emissions of Gases and Aerosols from Nature (MEGAN) version 3 (CTSM Issue #1323) |
| Nitrate aerosols | aerosol mechanism | CESM/CAM-Chem, WACCM and MUSICA | Danny Leung, Yunqian Zhu (NOAA) | Implementation of MOSIAC and CARMA with nitrate aerosols. |
| Short Lived Halogens | chemistry mechanism | |||
Long-term plans
These updates are on our radar, but either are low priority or do not have anyone assigned to work on them.
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