I try to centralize here, access to the data sets I work with (and some data mining tools).

Data I use the most are from the Argo array. Obviously I won't distribute any Argo data here, but I developed, from scratch, an entire new system to help you mine the database in the North Atlantic. Check it out:
Norht-Atlantic Argo Regional Center (NAARC): information and data mining tool

You can also check out the COPODA project I developed to work with hydrographic datas !