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Remote Sensing Observations Of The Phytoplankton Distribution In Lake Kinneret, Anatoly A. Gitelson, M. Mayo, Y. Yacobi, A. Parparov, T. Berman
Remote Sensing Observations Of The Phytoplankton Distribution In Lake Kinneret, Anatoly A. Gitelson, M. Mayo, Y. Yacobi, A. Parparov, T. Berman
School of Natural Resources: Faculty Publications
Reflectance spectra from 400 to 750 nm were measured in Lake Kinneret, when low phytoplankton stock prevailed, with chlorophyll concentrations from 3.1 to 7.3 μg/l. Algorithms for estimation of chlorophyll (CHL) concentration were devised using reflectances in the blue and green region of the spectrum and natural solar induced fluorescence. The fluorescence was calculated either from the reflectance height above a baseline drawn between 650 and 715 nm or between 670 and 730 nm, and also from the sum of reflectance above the base line through 670 and 730 nm. This paper presents experimental evidence showing that fluorescence can be …
Reflectance Models For Quantifying Chlorophyll In Inland Waters, Anatoly A. Gitelson
Reflectance Models For Quantifying Chlorophyll In Inland Waters, Anatoly A. Gitelson
School of Natural Resources: Faculty Publications
To develop the models for chlorophyll (CHL) estimation, the nature of a peak near 700 nm on the reflectance spectrum of water should be investigated. Simultaneous measurements of the reflectance spectra from 400 to 750 nm and relevant water quality constituent concentrations were carried out. A shift of the peak position and an increase of the peak magnitude, when chlorophyll concentration increased, were observed. The relationships of the magnitude and position of the peak to chlorophyll-a, were applied to several independent data sets. The parameters of the peak can be used as precise indicators of CHL content in inland waters.