The system shown in the photo below provides continuous monitoring as the sampling vessel makes its way through the dispersant-treated water.
Water is pumped from the submerged hose through the fluorometer. Notice the water pump (foreground) and the two fluorometers in the background. Also notice the Global Positioning System (GPS) instrument to the left of the pump. The GPS can pinpoint the location of the sampling boat, and is a critical instrument during sampling operations.