caa a22 4500 475829018 CHVBK 20180406123836.0 cr unu---uuuuu 170329e20000601xx s 000 0 eng 10.1007/BF02673472 doi (NATIONALLICENCE)springer-10.1007/BF02673472 Diffusion models of a jet of gas-aerosol pollutant for local radiation-monitoring systems [Elektronische Daten] [S. Beschastnov, A. Naidenov] Two operational numerical models for dissemination of gas-aerosol pollutants in the atmosphere are presented: MADJET-GA (Gaussian type) and MADJET-MM, based on the method of moments of the concentration field. It is shown that it is important to determine the input parameters of the models correctly and consistently. A comparison of the concentration of sulfur dioxide calculated using the two models and the experimental data showed satisfactory agreement: 60 and 69%, respectively, of the 73 cases examined satisfy the factor of 2 (the concentration differs by less than a factor of 2). The sensitivity of the models to the input meteorological data was estimated by comparing the pollutant concentration field at the ground, calculated from pilot-balloon measurements of the wind speed and direction at two points in the Obninsk region and its surroundings. It is shown that on the average the pollutant spots overlap by 43-86%, and the average concentration at the ground differs by a factor of 2-7. Gaussian models are least sensitive to the input meteorological data. 1 figure, 1 table, 16 references. Kluwer Academic/Plenum Publishers, 2000 Beschastnov S. aut Naidenov A. aut Atomic Energy Kluwer Academic Publishers-Plenum Publishers 88/6(2000-06-01), 482-488 1063-4258 88:6<482 2000 88 10512 https://doi.org/10.1007/BF02673472 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF02673472 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Beschastnov S. aut NATIONALLICENCE 700 1- Naidenov A. aut NATIONALLICENCE 773 0- Atomic Energy Kluwer Academic Publishers-Plenum Publishers 88/6(2000-06-01), 482-488 1063-4258 88:6<482 2000 88 10512 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer