Water, salt, and heat exchange through the Kinburn Strait of the Dnieper-Bug Estuary

Min’kovskaya, R. Ya.; Демидов, А. В.

doi:10.1134/s0001437014050117

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“…При этом из-за сложности и динамичности устьевых процессов и трудностей организации детальных исследований в устьях рек количественная оценка адвективного обмена водой, теплом и веществами в зоне взаимодействия разнородных вод не выполнялась. Предшествующие работы по таким оценкам касались обменных процессов в Кинбурнском проливе Днепровско-Бугского лимана и в проливе Тонком, соединяющем лагуну Сиваш с Азовским морем (Minkovskaya and Demidov, 2014;Симов и др., 2016;Eremina and Evstigneev, 2020).…”

Section: Introductionunclassified

Advective Components Determination of Mass, Heat and Substances Exchange According to Natural Data at the Mouth of the Black River (Sevastopol Region)

Min’kovskaya¹,

Slepchuk²,

Antonenkov³

2023

Vestnik SPbSU. Earth Sciences

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Physical and mathematical modeling of nonstationary exchange processes in the zone of interaction of heterogeneous waters at the mouths of rivers remains problematic. Therefore, the paper proposes and tests a method for estimating multidirectional water, heat and salts consumption in this zone based on field data. For this purpose, a program of long-term expeditionary research was developed, full-scale measurements were carried out in 2017–2021, an algorithm and a calculation program were developed and methods for quantifying the components of metabolic processes were tested according to full-scale studies in 2019 at the mouth of the Black river, in the zone of interaction of river water and desalinated water of the Sevastopol Bay. The article provides a methodology and an example of the assessment of water, salt and heat exchange for a representative expedition carried out under average hydrometeorological conditions during the low-water periods. Calculations are made by the analytical method, using standard programs, and by the graphical method, by graphical interpolation and planimetry of areas. The discrepancies between the results obtained by different methods were 2–7 %, which indicates the possibility of using this technique to process long-term data with sufficient accuracy. The proposed method for quantifying the components of exchange processes based on natural data can be used in any formation of different types of river mouths for balance calculations, forecasting possible changes in their state and adjacent parts of the sea under the influence of natural and anthropogenic factors, as well as for calibration and verification of models.

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Section: Introductionunclassified