An attempt to use measurements of sun-induced chlorophyll fluorescence to estimate chlorophyll a concentration in the Baltic Sea

Miroslawa Ostrowska; Miroslaw Darecki; Bogdan Wozniak

doi:10.1117/12.298178

30 December 1997 An attempt to use measurements of sun-induced chlorophyll fluorescence to estimate chlorophyll a concentration in the Baltic Sea

Miroslawa Ostrowska, Miroslaw Darecki, Bogdan Wozniak

Author Affiliations +

Proceedings Volume 3222, Earth Surface Remote Sensing; (1997) https://doi.org/10.1117/12.298178
Event: Aerospace Remote Sensing '97, 1997, London, United Kingdom

Abstract

The possibility of using natural fluorescence -- sun-induced chlorophyll a fluorescence (SICF) in remote sensing and/or contact investigations of chlorophyll a concentration (C_a) has often been discussed in recent years. The relationship between chlorophyll a concentration (C_a) and chlorophyll a fluorescence at 683 nm seems to evident and suggests a method of obtaining the C_a concentration on the basis of SICF intensity. Unfortunately this relationship is not as direct as we would like because SICF depends on numerous physiological properties of phytoplankton like fluorescence quantum yield and light absorption capacity which depend on an environmental factors. The influence of these parameters on SICF is shown in this paper and the relationships are presented. Using these we made attempt to achieve the direct functional dependence between the natural fluorescence (obtained from the upward reflectance coefficient spectrum measured at 665, 683 and 710 nm) and the chlorophyll a concentration. The analysis carried out in this study shows that the possibility determining C_a concentrations is limited to great optical depths in the sea ((tau) greater than 3). However using SICF for estimation C_a in the surface layer is probably impossible.

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Miroslawa Ostrowska, Miroslaw Darecki, and Bogdan Wozniak "An attempt to use measurements of sun-induced chlorophyll fluorescence to estimate chlorophyll a concentration in the Baltic Sea", Proc. SPIE 3222, Earth Surface Remote Sensing, (30 December 1997); https://doi.org/10.1117/12.298178

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