new b-case w/ wscale_factor = 0.25

[adamrher]

Description:

Same as #362 except

microp_aero_wsub_scale = 0.5->0.25

I'd also like to relax the floor value to 0.25 as well. Those SourceMods are here:

/glade/u/home/aherring/src/cam6_3_115/usr_src/wsubfloor25/ndrop.F90

Case directory:
Locally (if still available):
/glade/p/cesmdata/cseg/runs/cesm2_0/$CASE

On github:
https://github.com/NCAR/amwg_dev/tree/$CASE

Sandbox:
Locally (if still available):
/glade/work/hannay/cesm_tags/cesm2_3_alpha13b

On github:

git clone https://github.com/ESCOMP/cesm cesm2_3_alpha13b
cd cesm2_3_alpha13b
git checkout  cesm2_3_alpha13b
./manage_externals/checkout_externals -o

Diagnostics:
AMWG diags (if available)
https://webext.cgd.ucar.edu/BLT1850/$CASE/atm/

Contacts:

[cecilehannay]

see run #367