ssp370 default aerosol file starts in 2014

[samsrabin]

trafficstars

(All mentioned files are in /glade/p/cesmdata/cseg/inputdata/atm/cam/chem/trop_mozart_aero/aero/; I'll be excluding that for clarity.)

When requesting an ssp370 compset, the default aerosol file is aerodep_clm_SSP370_b.e21.BWSSP370cmip6.f09_g17.CMIP6-SSP3-7.0-WACCM.001_2014-2101_monthly_0.9x1.25_c190402.nc, which starts in 2014. Instead, per conversation just now with @ekluzek, it should probably be aerodep_clm_SSP370_b.e21.BWSSP370cmip6.f09_g17.CMIP6-SSP3-7.0-WACCM.001_1849-2101_monthly_0.9x1.25_c201103.nc.

There's also aerodep_clm_SSP370_b.e21.BWSSP370cmip6.f09_g17.CMIP6-SSP3-7.0-WACCM.001_1849-2101_monthly_0.9x1.25_c201101.nc, which differs from the _c201103.nc version in number of timesteps (3059 vs. 3036, respectively). Since the _c201101.nc number of timesteps isn't evenly divisible by 12, it's probably not the right one to use.

[ekluzek]

The files that should be used are the ones that we point to in the PLUMBER2 user-mods for CTSM as seen here:

https://github.com/ESCOMP/CTSM/blob/master/cime_config/usermods_dirs/PLUMBER2/defaults/user_nl_datm_streams

[TeaganKing]

The linked PR above has been created to resolve this issue.