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Atmospheric and Oceanic Optics

2020 year, number 2

Biooptical characteristics of lake Issyk-Kul upper layer waters using data of operative sensing from board a vessel with the optical passive complex EMMA

V.V. Rostovtseva1, I.V. Goncharenko1, B.V. Konovalov1
Southern Branch of the P.P. Shirshov Institute of Oceanology, Gelendjik, Russia
Keywords: оптическое пассивное дистанционное зондирование, гиперспектрометр, природные компоненты морской и озерной воды, поглощение и рассеяние света водой, концентрации фитопланктона, окрашенного органического вещества и взвеси, optical passive remote sensing, hyperspectrometer, natural sea/lake water constituents, light absorption and scattering in water, concentration of phytoplankton, colored organic matter and suspended matter


Data of optical characteristics of lake Issyk-Kul measured with the complex for passive remote sensing Ecological Monitoring of Marine Areas (EMMA) from board a vessel as well as measurement data obtained for water samples allowed us to develop and validate a new technique for oligotrophic water content estimation. This technique is the third part of the method for remote estimation of the main natural constituents concentration in sea or lake waters using light absorption spectrum of pure sea water. The method was suggested by us earlier for mesotrophic and eutrophic waters. Using this technique the estimates of concentration of phytoplankton, colored organic matter, and suspended matter and their distribution over the lake during the three-day experiment in July, 2018, were obtained.