The files below are all located in a directory in the GCM directory. They can be copied to your own directory using the following command:
cp ~gcm/www/usefuldocs/fortgrads/* ~myname/
The files below are supplied for perusal without the need to download. The 'amazon.txt' file is the raw data upon which the 'climo.f' fortran file will perform anomaly calculations and then put it into a binary file 'anom.dat'. This binary file is described by the GrADS control file 'anom.ctl'.
amazon.txt sample of entire file