Creation of cadastre of ground concentration of chemical polluting substances in the city of Obninsk taking into account aerodynamic shadows of buildings

The summary volume 'Protection of atmosphere and extreme allowable contamination' for the city of Obninsk (hereinafter Summary volume) was developed iri 1996 under aegis of State committee on protection of the environment of the Kaluga region and Administration of Obninsk. Now 96 industrial enterprises and research institutes of the city are included in the Summary volume. The summary volume represents a set of specialized data bases in which the parameters of sources of contamination (coordinates, heights, diameters, temperature, velocity of gas streams, power of contamination, belonging to the enterprise) are described. The data bases function in a specialized program complex. The data base structure includes the programs accounting ground concentration, converting of data bases, and creation of a topology base. The list of the PC which can be used is annually affirmed by the State Committee of Protection of the environment. When the Summary volume was originally developed, the PC 'Ecologist 1.13' was used; it was upgraded up to the version 'Ecologist 2.20' in 1998. Now, the PC is upgraded to account for aerodynamic shadows of buildings. To maintain the Summary volume by taking into account buildings, the PC 'Prism - region' by 'LOGUS' firm is selected. (authors)