data_prep has updated scripts for prepping model/obs data with the option of normalising to reference period. also switched to ncdf4
HADCRUT4_data takes HadCRUT4 gridded dataset and makes ENSO. results for unnormalised ENSO are ts/HadCRUT4/ENSO.png and EOF.png - EOF is based on rean T anoms wrt to 1961-1990 like CRU