A video-log of a sailing trip to investigate an oceanic Eddy.
On a satellite image of an offshore area, scientists discovered a region of unusually high primary production, which appeared to be related to an unusually large oceanic eddy. The scientists were interested in getting a snapshot of water characteristics (Temperature and Salinity) as well as estimates of nutrients and to actually measure the primary production (to verify the measurements taken from satellite). They also wanted information about the presence of other organisms such as fish, seabirds and marine mammals, which may use this unusual structure as a feeding 'hotspot'.
Through a platform for oceanic research they found a sailor with the right sensors nearby, and requested him to visit the spot, take some measurements and have a look.
Also, since these eddies often trap debris, local marine reserve managers were worried that an oil slick from an oil tanker that just cleaned its tanks in the vicinity will get trapped in the eddy and cause disturbance to the animals using this feeding hotspot. The organization asked the sailor to look out for evidence of such, either visual at the surface or through sensor measurements of the water itself.