Enter the GPM number for the data that you wish to access. GPM numbers are in the format "GPMdddxnnnnnnnn" where:

1. "ddd" is the 3 digit identifier for the GPM installation used; and
2. "nnnnnnnn" is the 8 digit serial number for that data set.

Enter multiple GPM numbers for the data that you wish to access, entering one GPM number per line. For example:

GPM77700000236
GPM77700000237
GPM77700000238

will display a gel-type display comparing these three datasets.