1. Ocean Observations, http://en.wikipedia.org/wiki/ocean_observations.
2. Ocean Networks Canada, http://www.oceannetworks.ca/.
3. NOAA Ocean Climate Observation Program, http://www.oco.noaa.gov/.
4. Japanese Ocean Flux Data Sets with Use of Remote Sensing Observation, http://dtsv.scc.u-tokai.ac.jp/j-ofuro/.
5. Woods Hole Oceanographic Institution, http://www.whoi.edu/.