Ukrainian Center of Environmental and Water Projects

Kiev, Ukraine

Ukrainian Center of Environmental and Water Projects

Kiev, Ukraine

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Perianez R.,University of Seville | Bezhenar R.,Ukrainian Center of Environmental and Water Projects | Iosjpe M.,Norwegian Radiation Protection Authority | Maderich V.,Institute of Mathematical Machine and System Problems | And 4 more authors.
Journal of Environmental Radioactivity | Year: 2015

Four radionuclide dispersion models have been applied to simulate the transport and distribution of 137Cs fallout from Chernobyl accident in the Baltic Sea. Models correspond to two categories: box models and hydrodynamic models which solve water circulation and then an advection/diffusion equation. In all cases, interactions of dissolved radionuclides with suspended matter and bed sediments are included. Model results have been compared with extensive field data obtained from HELCOM database. Inventories in the water column and seabed, as well as 137Cs concentrations along 5 years in water and sediments of several sub-basins of the Baltic, have been used for model comparisons. Values predicted by the models for the target magnitudes are very similar and close to experimental values. Results suggest that some processes are not very relevant for radionuclide transport within the Baltic Sea, for instance the roles of the ice cover and, surprisingly, water stratification. Also, results confirm previous findings concerning multi-model applications. © 2014 Elsevier Ltd.


Maderich V.,Institute of Mathematical Machine and System Problems | Bezhenar R.,Ukrainian Center of Environmental and Water Projects | Heling R.,Nuclear Research and Consultancy Group | de With G.,Nuclear Research and Consultancy Group | And 5 more authors.
Journal of Environmental Radioactivity | Year: 2014

The compartment model POSEIDON-R was modified and applied to the Northwestern Pacific and adjacent seas to simulate the transport and fate of radioactivity in the period 1945-2010, and to perform a radiological assessment on the releases of radioactivity due to the Fukushima Dai-ichi accident for the period 2011-2040. The model predicts the dispersion of radioactivity in the water column and in sediments, the transfer of radionuclides throughout the marine food web, and subsequent doses to humans due to the consumption of marine products. A generic predictive dynamic food-chain model is used instead of the biological concentration factor (BCF) approach. The radionuclide uptake model for fish has as a central feature the accumulation of radionuclides in the target tissue. The three layer structure of the water column makes it possible to describe the vertical structure of radioactivity in deep waters. In total 175 compartments cover the Northwestern Pacific, the East China and Yellow Seas and the East/Japan Sea. The model was validated from 137Cs data for the period 1945-2010. Calculated concentrations of 137Cs in water, bottom sediments and marine organisms in the coastal compartment, before and after the accident, are in close agreement with measurements from the Japanese agencies. The agreement for water is achieved when an additional continuous flux of 3.6TBqy-1 is used for underground leakage of contaminated water from the Fukushima Dai-ichi NPP, during the three years following the accident. The dynamic food web model predicts that due to the delay of the transfer throughout the food web, the concentration of 137Cs for piscivorous fishes returns to background level only in 2016. For the year 2011, the calculated individual dose rate for Fukushima Prefecture due to consumption of fishery products is 3.6μSvy-1. Following the Fukushima Dai-ichi accident the collective dose due to ingestion of marine products for Japan increased in 2011 by a factor of 6 in comparison with 2010. © 2013 Elsevier Ltd.


Grant
Agency: European Commission | Branch: FP7 | Program: CP-FP | Phase: Fission-2010-3.3.1 | Award Amount: 2.72M | Year: 2011

This project aims on the one hand to keep the momentum gained through the European Project EURANOS in establishing a platform where the operational and research community can meet and discuss with all the relevant stakeholders the topics related to emergency response and recovery preparedness and on the other hand to tackle urgent research topics in the area of nuclear emergency response and recovery preparedness. It addresses the call Fission-2010-3.3.1: European platform on emergency and post-accident preparedness and management. Through a collaboration of industry, research and governmental organisations in Europe, methodological aspects and computational models will be developed to be consistent with recent recommendations from international bodies such as the ICRP (International Commission of Radiation Protection) and improve Europes response by coupling the decision support systems with an early notification system such as ECURIE. Within this project, a platform will be established that will be a unique place for combined meeting of the research and the operational community.


Grant
Agency: European Commission | Branch: FP7 | Program: CP | Phase: Fission-2012-3.3.1 | Award Amount: 6.50M | Year: 2013

This proposal aims to close gaps that have been identified in nuclear and radiological preparedness following the first evaluation of the Fukushima disaster. It addresses the call Fission-2010-3.3.1: Update of emergency management and rehabilitation strategies and expertise in Europe. The consortium intends to review existing operational procedures in dealing with long lasting releases, address the cross border problematic in monitoring and safety of goods and will further develop still missing functionalities in decision support system ranging from improved source term estimation and dispersion modelling to the inclusion of hydrological pathways for European water bodies. As the management of the Fukushima event in Europe was far from being optimal, we propose to develop means on a scientific and operational basis to improve information collection, information exchange and the evaluation for such types of accidents. This will be achieved through a collaboration of industry, research and governmental organisations in Europe taking into account the networking activities carried out under the NERIS-TP project. Furthermore, the NERIS Platform member organisations (so far 43 partners) will be actively involved in the development.


PubMed | Karlsruhe Institute of Technology, Belgian Nuclear Research Center, Greek National Center For Scientific Research, Federal office for Radiation Protection and 4 more.
Type: | Journal: Radiation protection dosimetry | Year: 2016

The PREPARE project aimed closing gaps identified in nuclear and radiological preparedness in Europe following the first evaluation of the Fukushima disaster. With 46 partners from Europe and Japan, it collected the key players in the area of emergency management and rehabilitation preparedness. Starting from February 2013, the project ended in January 2016. Among others, the project reviewed existing operational procedures for long-lasting releases, cross-border problems in radiation monitoring and food safety and further developed missing functionalities in decision support systems ranging from improved source term estimation and dispersion modelling to the inclusion of hydrological pathways for European water bodies. In addition, a so-called Analytical Platform has been developed to explore the scientific and operational means to improve information collection, information exchange and the evaluation of such types of disasters. The tools developed within the project will be partly integrated into the decision support systems ARGOS and JRODOS.


Ievdin I.,Ukrainian Center of Environmental and Water Projects | Trybushnyi D.,Ukrainian Center of Environmental and Water Projects | Trybushnyi D.,Karlsruhe Institute of Technology | Zheleznyak M.,Ukrainian Center of Environmental and Water Projects | Raskob W.,Karlsruhe Institute of Technology
Radioprotection | Year: 2010

The paper provides details on the re-engineering of the European decision support system for nuclear emergencies RODOS. Being a Java based product, the new RODOS version named JRodos introduces a cross-platform solution capable to run on most operation systems, including Windows and the main UNIX derivates. The re-engineered system preserves computational models from RODOS v6.0, adding a powerful GIS support and applying modern database technologies with flexible configuration possibilities. JRodos import functionality includes the support of EURODEP measurement files and GRIB 1 meteo data. The system operates successfully on Windows (NT based versions from Windows 2000 to Windows 7) and UNIX machines (OpenSuSe, Ubuntu, Solaris), both x86 and x64. Any RODOS further development will be realized in the JRodos version aiming to have this as the main operational version for the next 10 years. © EDP Sciences, 2010.


Raskob W.,Karlsruhe Institute of Technology | Trybushnyi D.,Karlsruhe Institute of Technology | Ievdin I.,University of Tartu | Zheleznyak M.,Ukrainian Center of Environmental and Water Projects
Radioprotection | Year: 2011

One of the major objectives of the 6th Framework EC RTD EURANOS (European Approach to Nuclear and Radiological Emergency Management and Rehabilitation Strategies) project was to improve the RODOS (Real-time on-line decision support) system in its operational applicability. In the first phase of the project two possibilities for the main system development has been discussed: either to carry out refinements in the current version of RODOS or to consider a complete software re-engineering. The RODOS Users Group (RUG) finally concluded that the latter option was one to be realised. As a result a JAVA based version named JRODOS has been developed introducing a cross-platform solution capable to run on most operation systems, including Windows, Macintosh and the main UNIX derivates. The re-engineered system preserves computational models from RODOS, adding a powerful GIS support and applying modern database technologies with flexible configuration possibilities. Furthermore, these new GIS functionalities allowed implementing advanced simulation models for simulating countermeasures in inhabited areas (ERMIN - European Model for Inhabited Areas) and food production systems (AGRICP - Agricultural Countermeasure Program). Both simulation models have been part of the EURANOS project and represent state of the art modelling capabilities in their respective area. © 2011 EDP Sciences.


Landman C.,Karlsruhe Institute of Technology | Raskob W.,Karlsruhe Institute of Technology | Trybushnyi D.,Karlsruhe Institute of Technology | Ievdin I.,Ukrainian Center of Environmental and Water Projects
Radioprotection | Year: 2016

In 2012/2013 a screening tool that accounts for the new ICRP-103 recommendations was developed and implemented in the program environment of the JRodos system under the model name "ICRP". The article describes major features, results, and operational aspects of version 1.0 of this tool by means of an application example. © EDP Sciences 2016.


Charnock T.,Center for Radiation | Landman C.,Karlsruhe Institute of Technology | Trybushnyi D.,Karlsruhe Institute of Technology | Ievdin I.,Ukrainian Center of Environmental and Water Projects
Radioprotection | Year: 2016

The European Model for Inhabited Areas (ERMIN) evaluates strategies for the remediation of inhabited areas contaminated by air-borne radioactive material. The enhancements in the new version, ERMIN 2, were motivated by the new ICRP recommendations for a system of radiological protection, and by user feedback. The underlying model has not changed but the interface has been enhanced to allow the user to easily compare recovery strategies and to select appropriate countermeasure options within the context of ICRP recommendations on the residual dose. © EDP Sciences 2016.


Kantarzhi I.G.,Moscow State University of Civil Engineering | Maderich V.S.,Ukrainian Center of Environmental and Water Projects | Koshebutskii V.I.,Ukrainian Center of Environmental and Water Projects
Power Technology and Engineering | Year: 2016

Problems and potential approaches to determining ice characteristics for sea hydroengineering structures design are considered. A system for numerical modeling of ice dynamics is presented. The system may be used to define ice characteristics on approaches to structures with due regard for local hydrometeorological conditions and ice loads on structures. System application examples are presented for determining computational scenarios for ice loads at structures of the Pevek floating nuclear power plant (FNPP), as well as for the breakwater pier under reconstruction in Vanino. A scenario approach is used to determined ice loads. © 2016 Springer Science+Business Media New York

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