Influence of weather variability on the productivity of water reservoir Mozhaisk
Abstract
The paper presents the results of statistical analysis of the data received by automatic registration of intraday fluctuations in the PPFD intensity, water temperature, dissolved oxygen, intensity of production and destruction processes in the surface layer of the central part of the Mozhaisk reservoir during 70-day summer periods of 2016 and 2017. The oxygen content in transparent and blackened vessels was recorded by original automatic unit designed for injection of water at the depth of 0,5 m. Subsequently the primary production and destruction of organic matter were calculated by the classical oxygen method. The weather cycles were revealed which incorporate water heating and cooling phases related to weather changes. Observations were supplemented by the automatic registration of temperature fluctuations at seven levels of the 14-meter water column. Weather variability is estimated by the weather contrast index (IPC). It is shown that the higher it is the more intensive are the production and destruction processes in the surface layer of the reservoir.
About the Authors
K. K. Edelshtein
Lomonosov Moscow State University
Russian Federation
Russian Federation
Professor, D.Sc. in Geography
Faculty of Geography, Department of Land Hydrology
M. G. Grechushnikova
Lomonosov Moscow State University
Russian Federation
Russian Federation
Leading Scientific Researcher, PhD. in Geography; IWP RAS, Laboratory of Global Hydrology, Senior Scientific Researcher
Faculty of Geography, Department of Land Hydrology
A. V. Goncharov
Lomonosov Moscow State University
Russian Federation
Russian Federation
Leading Scientific Researcher, PhD. in Biology
Faculty of Geography, Department of Land Hydrology
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Review
For citations:
Edelshtein K.K., Grechushnikova M.G., Goncharov A.V. Influence of weather variability on the productivity of water reservoir Mozhaisk. Lomonosov Geography Journal. 2020;(2):36-44. (In Russ.)
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