Large chocked lagoon as a barrier for river–sea flux of dissolved pollutants: Case study of the Azov Sea and the Black Sea

Sedakov, Roman; Osadchiev, Alexander; Barnier, Bernard; Molines, Jean-Marc; Colombo, Pedro; P.P. Shirshov Institute of Oceanology  ; Russian Academy of Sciences [Moscow]; Institut des Géosciences de l’Environnement  ; Institut de Recherche pour le Développement -Institut national des sciences de l'Univers -Centre National de la Recherche Scientifique -Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement -Observatoire des Sciences de l'Univers de Grenoble -Université Grenoble Alpes -Institut polytechnique de Grenoble - Grenoble Institute of Technology  ; Université Grenoble Alpes; Climate Change Research Centre [Sydney]  ; University of New South Wales [Sydney]

Large chocked lagoon as a barrier for river–sea flux of dissolved pollutants: Case study of the Azov Sea and the Black Sea

2023

Sedakov, Roman | Osadchiev, Alexander | Barnier, Bernard | Molines, Jean-Marc | Colombo, Pedro | P.P. Shirshov Institute of Oceanology (SIO) ; Russian Academy of Sciences [Moscow] (RAS) | Institut des Géosciences de l’Environnement (IGE) ; Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE)-Observatoire des Sciences de l'Univers de Grenoble (Fédération OSUG)-Université Grenoble Alpes (UGA)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP) ; Université Grenoble Alpes (UGA) | Climate Change Research Centre [Sydney] (CCRC) ; University of New South Wales [Sydney] (UNSW)

International audience

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anglais. The Don River is among the largest rivers in the Eastern Europe and is heavily polluted. This river inflows into small and semi-isolated Sea of Azov, which is connected with the Black Sea by a narrow strait. Generally, the Sea of Azov is a large choked lagoon, which serves as a barrier for river-borne constituents. Using numerical modeling, we reveal that presence of the choked lagoon significantly slows down the estuary-seawater flux of dissolved pollutants and slackens its discharge-induced seasonal variability. In particular, the Sea of Azov delays the 5 % and 95 % of the total flux of riverine pollution to the Black Sea by 9 and 36 months, respectively. The obtained results are important for assessment the influence of background and emergency pollution accidents at the Don River on water quality in the study region. Moreover, these results could be applied to many other chocked lagoons in the World Ocean.

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Mots clés AGROVOC

black sea sea of azov

Informations bibliographiques

Editeur

HAL CCSD, Elsevier

D'autres materias

River-borne dissolved pollution; [sdu.stu.oc]sciences of the universe [physics]/earth sciences/oceanography; Pollution residence time; River-estuary-sea continuum; Choked lagoon; [sde.be]environmental sciences/biodiversity and ecology

Langue

anglais

ISSN

0025-326X, 1879-3363, 04593908

Type

Info:eu-Repo/semantics/article; Journal Articles

Source

ISSN: 0025-326X, EISSN: 1879-3363, Marine Pollution Bulletin, https://hal.science/hal-04593908, Marine Pollution Bulletin, 2023, 187, pp.114496. ⟨10.1016/j.marpolbul.2022.114496⟩

Sur AGRIS depuis: 2024-06-18

Date de modification: 2024-10-08

Format: Dublin Core

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Cette notice bibliographique a été fournie par Institut national de la recherche agronomique

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Liens

DOI https://hal.science/hal-04593908

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