Optical-properties of diverse phytoplanktonic species-experimental results and theoretical interpretation. In: Proceedings of SPIE, Ocean Optics X, 1302: 290–302īricaud A, Bedhomme A L, Morel A (1988). In-vivo absorption properties of algal pigments. Harmful Algae, 5(2): 213–231īidigare R R, Ondrusek M E, Morrow J H, Kiefer D A (1990). Satellite detection of harmful algal bloom occurrences in Korean waters. The results show that the retrieved and the measured Chlorophyll a concentrations of the blue algae and the green algae components in the ten mixture match well with the average relative error of 5.55%.Īhn Y, Shanmugam P, Ryu J, Jeong J (2006). The retrieval algorithm developed in this study extracts the mapping information between each individual alga and their Chlorophyll a concentration via Continuous Wavelet Transform, and retrieves the Chlorophyll a concentration of each alga in their mixture using a trust region optimizer. The “hot-ethanol extraction” method was chosen to calculate their concentration of Chlorophyll a. The Quantitative Filter Technique was applied to measure their absorption spectra. The pure blue algae and the pure green algae cultured in the laboratory environment are diluted and mixed at ten volume ratios. The characteristics of the absorption spectra of the two algae are presented. The absorption coefficients (spectra) of the algae, which do not change with its intrinsic optical characteristics and the observation geometry, are strictly additive quantities. Blue algae and green algae are the dominant phytoplankton groups that contribute to the eutrophication and the water bloom in inland water of China.

Absorption spectra of chlorophyll