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The Volga River is today a cascade of lowland reservoirs. This allows flood prevention, river-sea navigation and hydropower generation. There are also disadvantages, such as the flooding of fertile floodplain lands, a decrease in water quality and drastic algal blooms in the summer season. Due to the problems triggered by the current system, alternative solutions have been proposed that include a decrease in the amount of water stored and a reduction in energy production being, which can be compensated with floati...

The Volga River is essentially a cascade of reservoirs that provide hydroelectric energy. This technical solution made it possible to produce electricity for industrialization, to ensure the passage of river-sea vessels between five seas and to stop floods on the Volga River. Although often considered a green energy source, there are environmental and economic considerations that should be accounted for in a holistic and sustainable perspective, i.e. a life cycle of ca. 50 years, areal inundation by reservoir wate...

The goal of integrated multidisciplinary research was to develop a model for estimating and forecasting the dynamics of phytoplankton depending on meteorological and hydrophysical parameters. The analysis of water samples from various horizons obtained in the Gorky reservoir from 2015 to 2018 was performed as an important part of the research. Samples were examined for the presence of algae using a Levenhuk microscope equipped with a digital camera and connected to a computer. The results of the identification of ...

The development of a model for estimating and predicting the dynamics of plankton in a lake-type reservoir, depending on the meteorological and hydrophysical parameters, is carried out in the Nizhny Novgorod State University of Architecture and Civil Engineering in 2014-2018. Model for quantitative description of biomass production depending on solar radiation and temperature was developed. The influence of water stratification on algae blooming was investigated on the basis of systematic procedures for the quanti...

Online monitoring of plankton in lake-type reservoirs requires the development of a model which is based on previous information, can assess the current state and predict the concentration of plankton in the future. An improved view of previous periods is possible on the basis of reanalysis techniques. These data can be used as a basis for modeling the profile of wind characteristics and the temperature profile which varies with its influence. A one-dimensional model for lake type reservoir is used in the program ...