Hi, I am conducting regional aerosol perturbation experiments in CESM2.1.5 using the F2000climo compset resolution to study the influence of aerosol teleconnections on regional climate. I have already successfully implemented regional masking of prescribed aerosol emissions through modifications to the emission NetCDF files, namely to BC, POM and SO4. However, I am now trying to understand how to handle interactively generated natural aerosols, particularly sea salt, which do not appear to be controlled through standard prescribed emission inventories. From the atm_in file, I identified seasalt_emis_scale = 1.00D0, which appears to be a global scaling parameter rather than a regionally configurable mask.
My main question is whether there is any recommended workflow in CAM6/MAM4 for suppressing sea salt only within selected geographic regions while retaining fully interactive aerosol transport and chemistry elsewhere. Any guidance, references, or example implementations would be greatly appreciated.
My main question is whether there is any recommended workflow in CAM6/MAM4 for suppressing sea salt only within selected geographic regions while retaining fully interactive aerosol transport and chemistry elsewhere. Any guidance, references, or example implementations would be greatly appreciated.