Abstract
The possibility of using the in situ fluorescence line of chlorophyll-a in remote sensing studies of surface water productivity is investigated in a series of spectroscopic and water sampling measurements made from a launch in Saanich Inlet, British Columbia, Canada. The paper demonstrates the proportionality of the observed height of the line to measured chlorophyll concentrations. Weighting corrections are applied to allow for the observed vertical variations in chlorophyll concentrations. Changes in the blue/green region of the observed spectra are also considered as an indicator of the chlorophyll present, and the two methods appear capable of giving chlorophyll concentrations to a comparable accuracy for the relatively high levels observed.
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