This dataset has T units of months since 1960-01-01 (360) for T (Time)
sdfopen http://iridl.ldeo.columbia.edu/SOURCES/.IGOSS/.nmc/.Reyn_SmithOIv1/.monthly/.ssta/yearly-climatology/%5BY+%5Ddetrend-bfl/Y+partial/%5BY+T+%5Ddetrend-bfl/T+differences/dodsIf you have questions, comments, or problems please use the help@iri link. This page will evolve as we learn more about how GrADS handles data downloads, and your help pointing out problems is much appreciated.
*On GrADS startup, the config line should read Config: ... DODS-enabled ..., otherwise DODS (a.k.a. OpenDAP) is not installed and giving GrADS a URL instead of a local file name will result in a file-not-found error. In that case, you can use sdfopen after you download the netcdf file.