Dr. Ivan Kovalets

Position: Modeller

Fields of work: Atmospheric dispersion of pollutants

EMail: ik@env.kiev.ua

CV:

Selected Publications:

Selected publications in peer-reviewed journals:

• Kovalets I.V., Andronopoulos S., Venetsanos A.G., Bartzis J.G. 2011. Identification of strength and location of stationary point source of atmospheric pollutant in urban conditions using computational fluid dynamics model. Mathmetics and Computers in Simulation [submitted]
• Tsiouri V., Kovalets I., Andronopoulos S., Bartzis J.G., 2011. Source function estimation with data assimilation of gamma dose measurements in Lagrangian atmospheric dispersion model DIPCOT. Radiation Protection Dosimetry [submitted]
• Kovalets I.V., 2011. Computational fluid dynamics model of pollutant atmospheric dispersion around buildings. Proc. of Pukhov Institute for Modelling in Energy Engineering [in press, in Russian]
• Andronopoulos S., Davakis E., Bartzis J.G., Kovalets I., 2010. RODOS meteorological pre-processor and atmospheric dispersion model DIPCOT: a model suite for radionuclides dispersion in complex terrain. Radioprotection (45) No5 pp. S77-S84
• Kovalets I.V., Zheleznyak M.I., Khalchenkov A.V., Udovenko O.I., Lavrova T.V., 2010. Numerical modelling of radon atmospheric dispersion around uranium mill tailings. Electronic Modelling (32) No3 pp. 67-82 [in Russian]
• Kovalets I., Tsiouri V., Andronopoulos S., Bartzis J., 2009. Improvement of source and wind field input of atmospheric dispersion model by assimilation of concentration measurements: method and applications in idealized settings//Applied Mathematical Modelling, (33) pp. 3511-3521
• Garger E.K., Lev T.D., Talerko N.N., Kovalets I.V., 2009. Use of numerical weather prediction model MM4 for meteorological maintenance of emergency response system on NPP. Ukrainian Hydrometeorological Journal No4 pp. 146-153 [in Russian]
• Kovalets I., Andronopoulos S., Venetsanos A., Bartzis J., Optimisation of the numerical algorithms of the ADREA-I mesoscale prognostic meteorological model for real-time applications, Environmental Modelling and Software, 2008 (23), 96-108
• Guziy A.M., Kovalets I.V., Kushchan A.A., Zheleznyak M.I., 2008. WRF-Ukraine numerical weather prediction system. Mathematical Machines and Systems No4, pp.123-131 [in Russian]
• Davakis E., Andronopoulos S., Kovalets I., Gounaris N., Bartzis J.G. and Nychas S.G, 2007, Data assimilation in meteorological preprocessors: Effects on atmospheric dispersion simulations, Atmospheric Environment, 41, p. 2917–2932
• Kovalets I.V., Maderich V.S., 2006. Numerical simulation of the interaction of the heavy gas cloud with the atmospheric surface layer. Environmental Fluid Mechanics, 6(4), 313-340.
• Kovalets I., Andronopoulos S., Bartzis J., 2005, About the need to develop the data assimilation procedures for the meteorological pre-processors of the emergency response systems, Atmospheric Environment, Vol. 39, Issue 18 , pp. 3369-3372
• Yushchenko S., Kovalets I., Maderich V., Treebushny D., Zheleznyak M., 2005, "Modelling of the radionuclide contamination of the Black Sea in result of Chernobyl accident using circulation model and data assimilation", Radioprotection, Vol. 40, suppl. 1, pp. S685-S691
• Kovalets I., Andronopoulos S., Bartzis J., Gounaris N., Kushchan A., Introduction of data assimilation procedures in the meteorological pre-processor of atmospheric dispersion models used in emergency response systems//Atmospheric Environment, 2004, 38/3 pp. 457-467
• Kovalets I.V. Maderich V.S., 2003, Dynamics and Energetics of Heavy Gas Dispersion in Bottom Atmospheric Boundary Layer // International journal of fluid mechanics research, Vol. 30, No 4, pp. 395-409
• Kovalets I.V. Maderich V.S., 2003, Numerical 3D Model for Heavy Gas Dispersion in the Atmosphere with the Use of the Conservative Splitting Schemes // International journal of fluid mechanics research, Vol. 40, No4, pp. 410-424
• Kovalets I.V., Maderich V.S., 2003, On Influence of Heat Exchange with the Earth on a Heavy Cold Gas Dispersion in the Atmosphere // International journal of fluid mechanics research, Vol. 40, No 6, pp. 598-601

Selected publications in conference proceedings:

• Tsiouri V., Kovalets I., Andronopoulos S., Bartzis J.G. Source function estimation with data assimilation of gamma dose measurements in Lagrangian atmospheric dispersion model DIPCOT. Proc. Of Int. Conf. "Harmonization Within Atmospheric Dispersion Modelling for Regulatory Purposes HARMO13", Paris, France, 1-4 June 2010
• Kovalets I., Khalchenkov A., Ievdin Y., Zheleznyak M., Korolovych V., Validation of the JRODOS atmospheric dispersion module. Proc. Of Int. Conf. "Harmonization Within Atmospheric Dispersion Modelling for Regulatory Purposes HARMO13", Paris, France, 1-4 June 2010
• Tsiouri V., Kovalets I., Andronopoulos S., Bartzis J., Development and first tests of a data assimilation algorithm in a Lagrangian puff atmospheric dispersion model// Proc. of Int. Conf. "Harmonization Within Atmospheric Dispersion Modelling for Regulatory Purposes HARMO11", UK, Cambridge, 2007.
• Boyko A., Kovalets I., Guziy A., Zheleznyak M., 2009. Modeling of catastrophic flood in Trans-Carpathian region in July 2009 with the meteorological model WRF and hydrological model. Proc. Of Int. Conf. Mathematical and Imitational Modelling, Kiev, Ukraine, 22-26 June 2009.
• Kushchan A.A., Kovalets I.V., Zheleznyak M.M., Parallelized version of the MM5-Ukraine numerical weather forecast system on the 32-processor cluster "SKIT"//Proc. of Int. Conf. "SIMULATION-2006", Kiev, Ukraine, 16-18 May, 2006
• Kovalets I.V., Kushchan A.A., Zheleznyak M.M., Data Assimilation by Nudging in the MM5-Ukraine NWP model//Proc. of Int. Conf. "Mathematical and Imitating Modeling", Kiev, Ukraine, 26-30 June, 2006
• Davakis S., Andronopoulos S., Kovalets I., Bartzis J., Gounaris N., Nychas S. Influence of data assimilation in the meteorological pre-processor on prediction of the concentration fields.// Proc. of Int. Conf. "Harmonization Within Atmospheric Dispersion Modeling for Regulatory Purposes HARMO10", Greece, Crete, 17-20 October 2005.
• Kovalets I.V., and Maderich V.S., Parameterization of heat exchange with surface in the problem of the dense gas dispersion modelling.// Proc. of Int. Conf. "Harmonization Within Atmospheric Dispersion Modelling for Regulatory Purposes HARMO10", Greece, Crete, 17-20 October 2005.
• Dvorzhak A., Koshebutsky V., Kovalets I., Kushchan A., Zheleznyak M.., Assesment of doses for scenarios of accidental releases from Zaporizhje Nuclear Power Plant using RODOS system// Proc. of "11th International Congress of the International Radiation Protection Association", Madrid, 2004
• Kovalets I., Andronopoulos S., Bartzis J., Use of data assimilation procedures in the meteorological pre-processors of decision support systems to improve the meteorological input of atmospheric dispersion models // Proc. of Int. Symp. on "Off-site Nuclear Emergency Management – Capabilities and Challenges", Salzburg, Austria, 2003.
• Zheleznyak M., Kovalets I., Sorokin Y., Dvorzhak A., Kushchan A., Bogorad S., Shlyahtun N., Lins W., Implemetation in Ukraine of the Rodos system // Proc. of Int. Symp. on "Off-site Nuclear Emergency Management – Capabilities and Challenges", Salzburg, Austria, 2003.
• Kovalets I.V., Maderich V.S., Mathematical Modelling of Heavy Cold Gas Dispersion In The Atmospheric Boundary Layer// Proc. Of Int. Conf. "Recent Developments in Applied Mathematics And Mechnics. Theory, Experiment and Practice", Novosibirsk, 20-25 June, 2001.

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