Abstract
Assessment of the physical/geographical, geological, and water/economic factors on the Verkhnemstinskiy basin rivers’ groundwater runoff is presented. It has been shown that groundwater runoff to rivers high parameters are determined by favorable lithologic and climatic conditions, as well as a big number of lakes in the region. The Vyshnevolotsk hydraulic engineering system big water reservoirs considerably influence the rivers’ minimal low water and groundwater runoff. Earlier State Hydrological Institute and other research organizations performed assessment of the groundwater input to the rivers on this territory in 1970–1980. However, these works had not always stressed the connection between the calculated groundwater runoff parameters with local natural conditions. At the same time, Rosgidromet, State Hydrological Institute, and other institutions have accumulated considerable volume of data concerning this region rivers minimal low water and groundwater runoff. This paper systematizes these important hydrological characteristics in respect of the Verkhnemstinskiy basin and defines parameters of groundwater input to the rivers, lakes and reservoirs of this region.
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