[Shake-dev] SM3.5 Borcherdt table

[Peter Lombard]

Bruce,

The default grind.conf file included with ShakeMap 3.5 calls for the following
"Borcherdt table" files or their derivatives:
ampfactor_file          : lib/sitecorr/site_corr_slope.dat
mifactor_file           : lib/sitecorr/site_corr_cdmg_mmi

Can you provide some guidance about the differences between site_corr_cdmg.dat
and site_corr_slope.dat?

Why would we choose site_corr_slope.dat for the ampfactor_file, and
site_corr_cdmg.dat for the source for the mifactor_file, as opposed to using
the same file for both?

Pete