These are netCDF files for the 25-model ensemble averaged scPDSIpm data derived 
from 25 cMIP6 model runs under the historical (for 1900-2014) and SSP2-4.5 or SSP5-8.5 
scenario. They were used in Zhao and Dai (2021, JC).  The "*.TP2.ipe=2.*.nc" files are 
the scPDSIpm calculated using all forcing data (used to calcuate the scPDSIpm change), 
while the ".dXX.ipe=2.*nc" files are for the cases where only the changes in "XX" is 
allowed. The "*.T+q.*" files are for the case only changes in surface air temperature 
and specific humidity are allowed. These cases with individual forcing were used the 
attribution of the scPDSIpm change. 

Similar data files are availble for individual model runs, but they are too large to be 
put online here. They can be requested from the authers (adai@albany.edu).