Reconstruction of the Radioactive Contamination Occurring in the Environment in Primorskii Krai as a Result of a Nuclear Accident on a Submarine in Bukhta Chazhma

Саркисов, А. А.; Vysotskii, V. L.; Pripachkin, D. A.

doi:10.1007/s10512-020-00604-8

Cited by 7 publications

(2 citation statements)

References 3 publications

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“…The potential transport pathways on the sea surface and at different depths have recently been retrospectively simulated for the first time only [97] using the Lagrangian approach and the ROMS output data on the velocity field. Apart from the direct contamination of seawater in Chazhma Bay, radioactive material was deposited on the sea surface of the neighboring Ussuri Bay from the atmosphere, approximately half an hour after the explosion [98].…”

Section: Radioactive Tracersmentioning

confidence: 99%

Transport Barriers in Geophysical Flows: A Review

Prants

2023

Symmetry

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In the Lagrangian approach, the transport processes in the ocean and atmosphere are studied by tracking water or air parcels, each of which may carry different tracers. In the ocean, they are salt, nutrients, heat, and particulate matter, such as plankters, oil, radionuclides, and microplastics. In the atmosphere, the tracers are water vapor, ozone, and various chemicals. The observation and simulation reveal highly complex patterns of advection of tracers in turbulent-like geophysical flows. Transport barriers are material surfaces across which the transport is minimal. They can be classified into elliptic, parabolic, and hyperbolic barriers. Different diagnostics in detecting transport barriers and the analysis of their role in the dynamics of oceanic and atmospheric flows are reviewed. We discuss the mathematical tools, borrowed from dynamical systems theory, for detecting transport barriers in simple kinematic and dynamic models of vortical and jet-like flows. We show how the ideas and methods, developed for simple model flows, can be successfully applied for studying the role of barriers in oceanic and atmospheric flows. Special attention is placed on the significance of transport barriers in important practical issues: anthropogenic and natural pollution, advection of plankton, cross-shelf exchange, and propagation of upwelling fronts in coastal zones.

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Section: Radioactive Tracersmentioning

confidence: 99%

Transport Barriers in Geophysical Flows: A Review

Prants

2023

Symmetry

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“…1. Scheme of formation of a complex source in the event of a NPF accident in the bay and the subsequent transfer of radionuclides from the generated source: 1 -an accident at a NPF in the bay with the release of radionuclides into the atmosphere, 2 -release into the atmosphere and deposition of radionuclides on the bay surface, 3 -release into the atmosphere and deposition of radionuclides on the sea surface, 4 -distribution in the water column of radionuclides, deposited in the bay, and their removal into the sea, 5 -release of radionuclides into the bay water and their removal into the sea, 6 -ice-binding of radionuclides, 7 -drift of the frozen particles with ice, 8 -thawing and further spread of radionuclides in water, 9 -propagation of radionuclides in sea water, 10 -sedimentation of radionuclides to the bottom, partial capture and washing-out [10].…”

Section: стадии и механизмы процесса распространенияmentioning

confidence: 99%

Development and application of an integrated system of mathematical models for the transfer of radionuclides upon a hypothetic accident to minimize radioecological consequences

Саркисов¹,

Antipov²,

Bilashenko³

et al. 2021

AEE

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An integrated system of mathematic models is developed and implemented. The system is aimed at predicting the spread of the radioactive materials in the Arctic waters from a complex source distributed in space and time, formed by an emergency release of radionuclides from a nuclear-powered facility. Such approach allows taking into account various mechanisms of radionuclide transfer in arbitrary combinations. In addition to customary considered atmospheric and marine advection-diffusion processes with sedimentation on the underlying surface, it takes into consideration other mechanisms. Among them are particle sedimentation to the sea bottom with bottom capture, reverse process of washing-out from the bottom sediments. Specially attended is the Arctic-specific mechanism of particle ice-binding in the sea ice, drift of the frozen particles with ice, and their return to marine environment in result of ice thawing. The latter process may result in the appearance of the radioactive source at the large distance from the initial source and long time after the release event. The integrated model complex will provide the most realistic picture of the radioactive trace spread. It will sure be the effective tool for minimizing the emergency negative impact on the population and environment. The article a stage of long-term work that is currently ongoing.

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