Informational And Modeling Computer System For Prediction, EstimationAnd Analysis Of Radioactive Contamination Of Surface Water Objects

The given work presents description and practical representation of the system of computer models for estimation and analysis of consequences of radioactive accidents and other releases of radionuclides to surface water objects. A number of models are integrated in specialized geographical informational system (GIS). The GIS is based on the Mapinfo Professional G. The variety of models on prediction of concentration of radionuclides in water, suspended particles and bottom sediments in various types of water objects (rivers, lakes, etc.) is stipulated by large zones of influence of radioactively dangerous objects and thus broad circle of water objects potentially in danger. The models are integrated in the number of confined chains that enable full calculation from accident parameters to resulting pollution and health harm. On the base of calculated results appropriate actions are recommended. Estimation can be done with minimum input data. But accuracy of predictions can be increased; more processes and factors can be taken into account if additional data is available. The System is ((open)) so it can be expanded and improved by other models. The system is designed to support decision-making on population protection in an emergency situations and radioactively dangerous objects projecting. The models were developed with the use of modern information technologies. Some of models were validated on the Chernobyl accident contamination data and Mining and Chemical Combine (Krasnoyarsk region, Russia) contamination data. The system is in use in 'ROSENERGOATOM' Technical Crisis Center (TCC) in Nuclear Safety Institute of Russian Academy of Sciences. Transactions on Ecology and the Environment vol 60, © 2003 WIT Press, www.witpress.com, ISSN 1743-3541