The GDEM3 was computed from temperature and salinity profiles extracted from the Master Oceanographic Observational Data Set (MOODS). Each profile was interpolated to a set of 78 standard depths ranging from the surface to 6600 m. Clicking on a marker will return 16 profiles (quarter degree resolution) for the 1-degree box indicated.
The detailed document describing the new climatology and the techniques used in its construction is avilable -> Download PDF FIle