Viktoriya Yurievna Topchaya

• PhD of Geography
• Researcher at Institute of Oceanology. PP Shirshov Russian Academy of Sciences

For two years (2021 and 2022), snow sampling was carried out in the coastal zone of the Onega and Dvina Bays of the White Sea in the period of maximum snow accumulation (March). The snow was analyzed for the content of the major ions (Cl–, , Na+, Ca2+, K+); nutrients (phosphorus, silicon, nitrogen), pH, and TDS. The algological composition of the s...

The work is a comprehensive study that combines natural, analytical and model-statistical study of heterogeneous atmospheric deposits in the coastal zone of the southeastern part of the Baltic Sea. Over a long-term period (2006–2019), samples of all types of atmospheric deposits (dry precipitation, rainfall, snow cover) were taken using a unified m...

For two years (2021 and 2022) snow sampling carried out in the coastal zone of the Onega and Dvina Bays of the White Sea during the period of maximum snow accumulation (March). The snow was analyzed for the content of the main ions (Cl–, \({\text{SO}}_{4}^{{2 - }}\), Na+, Ca2+, K+); biogenic elements (phosphorus, silicon, nitrogen), pH and minerali...

Four years of studies of the quantitative, material, and chemical composition of insoluble atmospheric matter in the snow cover of the coastal zone of the southeastern Baltic Sea have been summarized. The insoluble atmospheric particle concentration in snow cover varied from 3.2 to 11.2 mg/l. The values of vertical fluxes are 1.3–5.9 mg/m²/day. The...

In the study, the content and speciation of Mn, Pb, Cd, Zn, Cr, Ni, Co, Cu, and Fe in the snow cover at the mouth of the Onega river (White Sea basin) at the end of the winter periods in 2018, 2019 and 2020 were determined. Winter 2019 year was the snowiest, as the maximum values of the snow cover depth and water equivalent were almost two times hi...

The paper presents the results of a study conducted in 2019 in which 29 rainfall water samples were collected and analyzed. The concentration of insoluble particles in rainwater was determined, and analysis of the material composition was performed by scanning electron microscopy. The content of Al, Mn, Ni, Cu, Zn, Cr, Co, As, Sr, Cd, Mo, Ba, Be, V...

39 проб донных песчаных отложений, отобранных в восточной части Калининградского залива. На основании гранулометрического анализа составлена схема распределения песков. Показано, что они распространены вдоль берегов залива до глубин 2,5-3,0 м. В основном они представлены средними и мелкими песками. Наиболее распространенными песками являются мелкие...

The results of studying the concentration and composition of aerosol particles washed out by rainfalls in the coastal zone of the southeastern Baltic Sea are presented. Investigations were carried out in 2008–2015. It is shown that aerosol material is represented by mineral, biogenic, and anthropogenic particles, and its average concentration in ra...

The main objective of this study was to compare conditions for sedimentation in a lagoon in the presence and absence of ice coverage. The winter conditions of Vistula Lagoon (hydrology, suspended solids in water, ice, and snow) were studied during the period 2011–2016. Three-dimensional numerical modelling was used to simulate the water level varia...

The Curonian and Vistula Lagoons should be considered to be a part of one natural hydraulic system, as they are connected via two branches of the Prgolya River (the Pregolya River proper and the Deyma branch). The catchment upstream of the point of bifurcation of the Pregolya River into these two branches belongs to both lagoons and comprises 14 %...

We examine the decadal (2001–2010) regularities in the processes of distant transport of air masses and heavy metals (HM) to five locations in the North of the European territory of Russia. The spatial and seasonal differences in these processes are considered. We use the back trajectories statistical method for the transport of air masses, and a m...

Field data, collected by the authors during winter expedition studies in Kaliningrad Bay, are analyzed. Notwithstanding the presence of ice cover, considerable advective processes are shown to be taking place in the bay. Seawater enters the bay, spreading in the bottom horizon all over the water area. Suspended sediment concentration in under-ice p...

The article discusses the possibility of protecting the shore by disposing of dredged material at shallow depths. An example of a permanently eroded open marine shore segment located south of the Vistula Lagoon inlet (south-eastern part of the Baltic Sea) is considered. This shore segment is permanently caused by downstream erosion due to the moles...

В данной работе впервые рассматриваются результаты натурного определения скорости осаждения взвеси, взмученной проходящим судном при его прохождении по навигационному каналу. Применена экспоненциальная аппроксимация изменения концентрации взвеси со временем. Для участков, покрытых мелкозернистым песком (песок пылеватый) и илистым осадком время сниж...

В данной работе впервые рассматриваются результаты натурного определения скоро-сти осаждения взвеси, взмученной проходящим судном при его прохождении по навигаци-онному каналу. Применена экспоненциальная аппроксимация изменения концентрации взве-си со временем. Для участков, покрытых мелкозернистым песком (песок пылеватый) и или-стым осадком время...