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The article includes estimates to confirm that the energy of the water of the Oka and Volga rivers at their confluence has being sufficient to erode transfer the volume of surrounding sedimentary rocks, and forming a height difference of about 100 m between the right and left banks and creating a unique landscape of stunning beauty and attractiveness. This phenomenon is due to the work of the Coriolis force and therefore is ubiquitous. However, at the confluence of the Oka and Volga rivers the transfer of sediment...

Ascent and submersion of algae depends on their density. As a result, algae find themselves in different conditions for solar radiation and temperature. The paper represents model of algae concentration during vegetative period both in upper mixed layer and in bottom layer for three types of algae depending on density. The model is based on research of water samples from various horizons obtained in the Gorky reservoir from 2014 to 2019. Samples were examined for the presence of algae using a microscope equipped w...

Objects of geological heritage of international level are located in the Nizhny Novgorod region. This is the Puchezh-Katunki impact crater of an early Jurassic age, the Bathonian-Callovian deposits of the Jurassic system near the settlement of Prosek on the banks of the Volga and karst lakes and caves in the basin of Pyana and Tyosha rivers. A water induced risk assessment was carried out to include it in application for aspiring UNESCO Geoparks network. The assessment includes the risk of landslides, abrasion of ...