Mathematical modeling of radionuclide dispersion in the Pripyat-Dnieper aquatic system after the Chernobyl accident.
The Chernobyl accident heavily contaminated the largest aquatic system in the Ukraine, requiring the development of a model-based decision support system in the field of aquatic radioecology. The main objectives of the system were to simulate and predict radionuclide dispersion in the Pripyat-Dnieper River-reservoir system, assess the effectiveness of special hydraulic countermeasures designed to decrease the rate of radionuclide dispersion in the water bodies, and support the Dnieper reservoirs' management operations. A hierarchy of mathematical models was developed. A two-dimensional (2-D) vertical-longitudinal model, a 2-D lateral-longitudinal model, a one-dimensional (1-D) channel model and a box-type model are briefly presented. These models describe the main features of radionuclide dispersion, including the processes governing radionuclide-sediment interactions. Examples of the models' applications are presented to show the peculiarities of radionuclide dispersion in this aquatic system.
Zheleznyak
M J
MJ
Department of Mathematical Modeling of Water Systems, V. Glushkov Institute of Cybernetics, Kiev, Ukraine.
Demchenko
R I
RI
Khursin
S L
SL
Kuzmenko
Y I
YI
Tkalich
P V
PV
Vitiuk
N Y
NY
D000059:Accidents; D005618:Fresh Water; D008433:Mathematics; D008962:Models, Theoretical; D009688:Nuclear Reactors; D011847:Radioactive Fallout; D014455:Ukraine; D014878:Water Pollution, Radioactive; D014881:Water Supply
D011847:Radioactive Fallout