Sulfate life cycle and large scale circulation over Antarctica #2
Description
Based on some email and online conversations with Jay Mace about if CAM has the mechanisms in place necessary to look at the large-scale transport of DMS and its influence on new particle formation and sulfate over the southern pole.
Christina suggested: "we could look at Qing's simulations she ran for her recent paper, where she changed the DMS emissions factor from 1 to x3, resulting in an improved performance of modeled cloud droplet number and CCN. A cursory look at this may be a zonally averaged vertical distribution of sulfate aerosol mass, sulfate aerosol number, and DMS mass concentrations"
I started by looking for Qing's data but it sounds like that's not a good direction for the time being. So, here would be some steps for the project if I'm making my own runs.
- Possibly relevant papers that Jay suggested in his meeting:
- Price et al 2025 (I put stars by this one in my notes) I think it's this one: https://www.authorea.com/users/564185/articles/1323234-oceanic-dms-strongly-affects-aerosols-and-clouds-in-the-arctic
but could maybe be https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2024JD042109 - Was going to start with running a default CAM6/7 configuration. Some conversations suggest that the aerosol capacity is there. CAM6 uses MAM4 aerosols (described here).
- What aerosol scheme is being released with CAM7?
- Run F2000 case for 5-10 years, output fields for sulfate mass, number and DMS mass
- Zonally averaged vertical plots of relevant aerosol fields.