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| Feature Update | Component | Relevant model | Notes |
|---|---|---|---|
| Saving 2m (height) ozone | diagnostic | CESM/CAM-Chem, WACCM and MUSICA | Some land component output is necessary for interpolating the surface layer to 2m. |
| Saving MDA8 ozone | diagnostic | CESM/CAM-Chem, WACCM and MUSICA | Important for comparing with air quality attainment standards. |
| Lightning NOx | atmosphere interactive emissions | CESM/CAM-Chem, WACCM and MUSICA | Scale aware production of lightning NOx. |
| Upper boundary conditions | External forcing | CESM/CAM-Chem, WACCM | Optional Upper boundary conditions for the low top L58 model created from a WACCM simulation (CAM Issue #533). NOy. |
| Marine Organic Aerosol Emissions | emissions | CESM/CAM-Chem, WACCM and MUSICA | Add emissions of marine aerosols (CAM Issue #531). |
| Nitrate aerosols | aerosol mechanism | CESM/CAM-Chem, WACCM and MUSICA | Implementation of MOSIAC and CARMA with nitrate aerosols. Danny Leung, Yunqian Zhu (NOAA). |
| T3S | chemistry mechanism | CESM/CAM-Chem, WACCM and MUSICA | Urban chemistry relevant mechanism. Publication in prep. Duseong Jo (Seoul National University). |
| CARMA implementation | complex aerosols | CESM/CAM-Chem, WACCM and MUSICA |
|
| Interactive methane | emissions | CESM/CAM-Chem, WACCM and MUSICA | Benjamin Gaubert |
Previous updates
Previous updates that have happened been implemented in the model.
| Feature Update | Component | Relevant model | Contibutor(s) | Notes | Date Finalized |
|---|---|---|---|---|---|
| T4S Chemistry Mechanism | chemistry mechanism | CESM/CAM-Chem, WACCM and MUSICA | Louisa Emmons | Simplified tropospheric and stratospheric chemistry to be used for longer scale runs (e.g. CMIP7). | |
| Simple Chemistry | chemistry mechanism | CAM7 | Duseong Jo (Seoul National University), Louisa Emmons | Simple chemistry (for CAM7) with updated SOA parameterization to support tropospheric aerosol formation (MAM4) (CAM Issue #727). https://doi.org/10.5194/gmd-16-3893-2023 | Feb 7, 2023 |
| OASISS | interactive emissions | CESM/CAM-Chem, WACCM and MUSICA | Siyuan Wang | Online DMS emissions based on Online Air-Sea Interface for Soluble Species (OASISS) | 2019 |