Ecological Safety of Coastal and Shelf Zones of Sea Ecological Safety of Coastal and Shelf Zones of Sea 2413-5577 20230203 Research Article Study of Wastewater Distribution near the Heraclean Peninsula (Crimea) in the Upwelling Situation Based on Expedition Data and Numerical Modelling Lomakin P. D.
Russian Federation
p_lomakin@mail.ru Ryabtsev Yu. N.
Russian Federation
ruab@mail.ru Marine Hydrophysical Institute of RAS Sevastopol Russian Federation 26 06 2023 2023 2 49 60 06 12 2022 03 05 2023 21 03 2023 Copyright © 2023, P. D. Lomakin, Yu. N. Ryabtsev 2023 P. D. Lomakin, Yu. N. Ryabtsev https://creativecommons.org/licenses/by-nc/4.0/ https://ecological-safety.ru/en/repository/issues/2023/02/03/

Based on the oceanographic survey data taken by Marine Hydrophysical Institute in August 2019, the paper analyzes the structural features of the fields of temperature, salinity, concentration of total suspended organic matter and coloured dissolved organic matter in the area along the southwestern coast of the Heraclean Peninsula in the situation of wind upwelling. The structure of the fields of the studied quantities shows signs of ascending circulation and pollution due to offshore wind and the presence of two wastewater sources in the studied area. The numerical experiments performed using the 3D barotropic linear Felsenbaum model confirmed the observed upwelling and showed that the rise of anthropogenic waters from sewer sources to the sea surface was due to both alongshore and offshore winds oriented normally to the coastline. They also made it possible to trace the distribution of anthropogenic suspension in the upwelling situation. It is shown that suspension from sewer sources in the upper layer of water spread to the open sea, and in the intermediate and near-bottom layers it accumulated along the coastline. With a northerly wind, the effect of suspended matter accumulation in the coastal zone is more intense.

 water structure upwelling pollution numerical modelling Heraclean Peninsula Crimea The work was performed under state assignment on topic no. FNNN-2021-0005 "Complex interdisciplinary research of oceanologic processes, which determine functioning and evolution of the Black and Azov Sea coastal ecosystems".

About the authors:

Pavel D. Lomakin, Leading Research Associate, Marine Hydrophysical Institute of RAS (2 Kapitanskaya St., Sevastopol, 299011, Russian Federation), Dr.Sci. (Geogr.), Professor, ResearcherID: V-7761-2017, Scopus Author ID: 6701439810, IstinaResearcherID: 18321047, p_lomakin@mail.ru

Yuri N. Ryabtsev, Research Associate, Marine Hydrophysical Institute of RAS (2 Kapitanskaya St., Sevastopol, 299011, Russian Federation), ORCID: 0000-0002-9682-9969, SPIN-code: 7853-4597, ruab@mail.ru

Contribution of the authors:

Pavel D. Lomakin – general supervision of the study, interpretation of expeditionary data, statement of the problem and objectives, interpretation of the overall result, writing the article

Yuri N. Ryabtsev – model parameter selection, model adaptation, performance of numerical experiments and their interpretation, revision of the article

All the authors have read and approved the final manuscript.

Article text not included.

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