KEYWORDS: Ice, Attenuation, Air temperature, Temperature metrology, Transparency, Time metrology, Spectrophotometry, Meteorology, Biological samples, Water quality
The spectral index of light attenuation (SILA) by water of natural reservoirs is a sensitive indicator reacting to the content of suspensions and dissolved absorbing substances in water, which to a certain extent can serve as a characteristic of ongoing biotic and abiotic processes. The results of expedition measurements of SILA in the range of 400-800 nm at different depths in the lake-like part of the Novosibirsk reservoir during the period of snow and ice cover and open water are presented. Quantitative data on changes in the SILA at different depths for several stations in the research area are discussed.
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