At frst it seems impossible: how can a sensor on board of a satellite circling the earth at an altitude of some 700 kilometers not only identify the total biomass of algae in the water, but also identify species of algae. This is related to what remote sensing specialists call the refectance spectrum of the water. The spectrum is a specifc fngerprint that is created by measuring the refection of water using extremely sensitive sensors, either onboard of a satellite or inside our equipment on the ground. We use a variety of algorithms to translate refectance spectra into concentrations of specifc compounds and phytoplankton species
By BlueLeg Monitor BV based in JG Sneek, NETHERLANDS.
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