Analysis of the influence functions of the initial concentration field impurities at the level of pollution in the Taganrog Bay

Authors

  • Kochergin V.S. Marine Hydrophysical Institute, Sevastopol, Российская Федерация
  • Kochergin S.V. Marine Hydrophysical Institute, Sevastopol, Российская Федерация

UDC

51.37

DOI:

https://doi.org/10.31429/vestnik-15-2-63-69

Abstract

A numerical model of passive admixture transport in the Azov Sea is considered. The main task is to match the adjoint problem. Based on the method of adjoint equations, the functions of the initial data influence on the average admixture concentration in the Taganrog Bay are constructed. Calculations were made for three areas of intensive navigation in the Taganrog Bay. In the numerical construction of the influence function, velocity fields obtained from the hydrothermodynamic model with different wind stress were used. Flow fields and calculated coefficients of the model were input parameters for the adjoint problem. The spatial structure of solutions of adjoint equations under different wind effects is investigated. The adjoint equation was integrated for a period of 5 days. The corresponding functions of the initial data influence on the average concentration in the studied areas of the Taganrog Bay are constructed for this period of time. The influence of areas adjacent to the main ports and zones of intensive navigation on the formation of pollutant concentration fields in the considered areas of the Taganrog Bay is investigated.

Keywords:

adjoint equations, transport model, admixture, influence functions, source of pollution, Azov Sea, Taganrog Bay

Acknowledgement

Работа выполнена в рамках государственного задания по теме 0827-2018-0004 «Комплексные междисциплинарные исследования океанологи-ческих процессов, определяющих функционирование и эволюцию экоси-стем прибрежных зон Черного и Азовского морей» (шифр «Прибрежные исследования»).

Author Infos

Vladimir S. Kochergin

младший научный сотрудник отдела теории волн Морского гидрофизического института РАН

e-mail: vskocher@gmail.com

Sergei V. Kochergin

старший научный сотрудник отдела морских информационных систем и технологий Морского гидрофизического института РАН

e-mail: vskocher@gmail.com

References

  1. Marchuk, G.I. Mathematical modeling in the environmental problem, Nauka, Moscow, 1982. (In Russian)
  2. Kochergin, V.S. The construction of influence functions for different regions of the Black Sea. In: Environmental monitoring systems, MGI NANU, Sevastopol, 2008, pp.~275-277. (In Russian)
  3. Kochergin, V.S. Use of influence functions in solving environmental problems. In: Environmental monitoring systems, MGI NANU. Sevastopol, 2009, pp. 205-208. (In Russian)
  4. Demyshev, S.G., Kochergin, S.V., Kochergin, V.S. Construction of the influence functions in the passive impurity transport model. Ecological safety of coastal and shelf zones and integrated use of shelf resources, MGI NANU, Sevastopol, 2009, vol. 19, pp. 228-233. (In Russian)
  5. Kochergin, V.S. Determination of the passive admixture concentration field from the initial data on the basis of the solution of the conjugate problems. Ecological safety of coastal and shelf zones and integrated use of shelf resources, MGI NANU, Sevastopol, 2011, vol. 25, iss. 2, pp. 270-376. (In Russian)
  6. Kochergin, S.V., Kochergin, V.S., Fomin, V.V. Determination of the concentration of a passive admixture in the Azov Sea on the basis of solving a series of conjugate problems. Ecological safety of coastal and shelf zones and integrated use of shelf resources, MGI NANU, Sevastopol, 2012, vol. 26, iss. 2, pp. 112-118. (In Russian)
  7. Blumberg, A.F., Mellor, G.L. A description of the three-dimensional coastal ocean circulation model. In: Heaps N. (ed.) Three-dimensional coastal ocean models, Am. Geoph. Union, 1987, vol. 4, pp.~1-16.
  8. Fomin, V.V. Numerical model of water circulation in the Azov Sea. Nauchnye trudy UkrNIGMI [Scientific works of UkrNIGMI], 2002, vol. 249, pp. 246-255. (In Russian)
  9. Ivanov, V.A., Fomin, V.V. Mathematical modeling of dynamic processes in the sea-land zone. EHKOSI-gidrofizika, Sevastopol, 2008. (In Russian)

Issue

Section

Physics

Pages

63-69

Submitted

2018-05-15

Published

2018-06-27

How to Cite

Kochergin V.S., Kochergin S.V. Analysis of the influence functions of the initial concentration field impurities at the level of pollution in the Taganrog Bay. Ecological Bulletin of Research Centers of the Black Sea Economic Cooperation, 2018, vol. 15, no. 2, pp. 63-69. DOI: https://doi.org/10.31429/vestnik-15-2-63-69 (In Russian)