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| 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 |
| Ozone and nitrogen deposition | Chemistry fields for other models without | WACCM output for other models | Doug Kinnison | Simulations performed with 2 degrees WACCM. Output from CMIP7 runs for non interactive chemistry runs. Updated EPP forcing. Possible connection with mid-top. Saving O3, N dep, OH? |
| MAM5 code for Mid Top CMIP7 simulations | Reading 5th mode forcing in simple chemistry | CAM | Simone Tilmes, Francis Vitt | add pull request link? |
| TUVx | Photolysis | CESM/CAM-Chem, WACCM and MUSICA | Doug Kinnison | New photolysis scheme. (https://github.com/NCAR/tuv-x) |
| Soil NOx | online calculation of soil NO emissions | CESM/CAM-Chem, WACCM and MUSICA | Maria Val Martin (University of Sheffield) | Updated Soil NOx emissions (CTSM Issue #1952) |
| Short Lived Halogens (SLH) | chemistry mechanism | CESM/CAM-Chem, WACCM and MUSICA | Rafael Fenandez (ICB-CONICET), Carlos Cuevas (CSIC) | |
| Heterogeneous uptake on sea salt and dust | multi-phase chemistry | CESM/CAM-Chem, WACCM and MUSICA | Rafael Fenandez (ICB-CONICET), Carlos Cuevas (CSIC), Danny Leung | Heterogeneous reaction of N2O5 on sea salt and dust. Need ClNO2 (inc. in SLH mechanism). |
| Marine Organic Aerosol Emissions | emissions | CESM/CAM | Simone Tilmes | Add emissions of marine aerosols (CAM Issue #531). Two more aerosol species added to the model. Impacts cloud condensation nuclei (CCN). |
| Interactive methane | emissions | CESM/CAM-Chem, WACCM and MUSICA | Benjamin Gaubert | Carbon Tracker inversion. Wetland methane emissions are currently prescribed. |
Long-term plans
These updates are on our radar, but either are low priority or do not have anyone assigned to work on them.
| 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. Carbon Tracker inversion. Wetland methane emissions are currently prescribed. |
Previous updates
Previous updates that have been implemented in the model.
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