addfile("http://iridl.ldeo.columbia.edu/SOURCES/.IGOSS/.TOPEX/.NOAA/.ssha/T+differences/yearly-climatology/Y+differences/%255BY+%255Ddetrend-bfl/%255BX+T+%255Ddetrend-bfl/%255BX+T+%255Ddetrend-bfl/%255BX+Y+T+%255Ddetrend-bfl/T+partial/dods","r")If you have questions, comments, or problems please use the help@iri link. This page will evolve as we learn more about how NCL handles data downloads, and your help pointing out problems is much appreciated.
*DODS (a.k.a. OpenDAP) is not necessarily installed in NCL and if OpenDAP is not installed, giving NCL a URL instead of a local
file name will result in a file-not-found error.
In that case, you can use addfile after you download the netcdf file.