UNCLOS requires principally two data types: detailed information on bathymetry, which is the depth to the ocean floor, and detailed seismic surveys. I illustrate both in the deck here, because we made use of what was available to us at the start of 2006 in compiling this map, including bathymetry and seismic data. The difference with UNCLOS is that what they require is much more detailed information. Specifically, the requirement by UNCLOS is transects for bathymetry and for seismic data that are spaced 60 nautical miles apart. I believe Canada is doing it every 50 nautical miles, to be on the safe side. That's good. It's detailed information that will eventually be made public, but wasn't available for the compilation of this map.
On June 16th, 2009. See this statement in context.