Modelling Distribution and Estimation Of 137Cs Stock in the Black Sea after the Chernobyl Accident

DOI

10.2991/isees-19.2019.10How to use a DOI?

Keywords

modelling; Black sea; radionuclides; radiological surveys.

Abstract

The results of comparing the model fields of 137Cs concentration in the Black Sea and the data of observations after the Chernobyl accident are presented. Several radiological surveys were used, during which 137Cs concentrations in the upper sea layer were measured for a year after the accident. Simulation of evolution of the caesium concentration field is performed taking into account atmospheric precipitation. A power function of time is proposed to describe the change in the radionuclide flux from the atmosphere. It was found that there is good compliance between observations and the results of calculations (the discrepancy is less than 30%) concerning the Black Sea Rim Current and the Western Cyclonic Gyre. The maximum differences occur in the areas of anticyclonic vortices. The 137Cs stock in the Black sea was estimated for the period from 1986 to 1991. It is shown that the total content of radioactive caesium corresponds to real data according to the calculation results.

Copyright

© 2019, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - S.G. Demyshev
AU  - A.S. Zapevalov
AU  - O.A. Dymova
PY  - 2019/08
DA  - 2019/08
TI  - Modelling Distribution and Estimation Of 137Cs Stock in the Black Sea after the Chernobyl Accident
BT  - Proceedings of the International Symposium "Engineering and Earth Sciences: Applied and Fundamental Research" dedicated to the 85th anniversary of H.I. Ibragimov (ISEES 2019)
PB  - Atlantis Press
SP  - 780
EP  - 785
SN  - 2590-3217
UR  - https://doi.org/10.2991/isees-19.2019.10
DO  - 10.2991/isees-19.2019.10
ID  - Demyshev2019/08
ER  -