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Vazaeva N. V. Chkhetiani O. G. Maksimenkov L. O. 《Izvestiya Atmospheric and Oceanic Physics》2019,55(2):152-166
Izvestiya, Atmospheric and Oceanic Physics - An investigation into mesoscale roll circulation and its transport characteristics in the atmospheric boundary layer (ABL) is carried out. The case... 相似文献
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M. S. Artamonova D. P. Gubanova M. A. Iordanskii V. A. Lebedev L. O. Maksimenkov V. M. Minashkin Y. I. Obvintsev O. G. Chketiani 《Izvestiya Atmospheric and Oceanic Physics》2016,52(8):769-783
Variations in the surface aerosol over the arid steppe zone of Southern Russia have been measured. The parameters of atmospheric aerosol (mass concentration, both dispersed and elemental compositions) and meteorological parameters were measured in Tsimlaynsk raion (Rostov oblast). The chemical composition of aerosol particles in the atmospheric surface layer has been determined, and the coefficients of enrichment of elements with respect to clarkes in the Earth’s crust have been calculated. It is shown that, in summer, arid aerosols are transported from both alkaline and sandy soils of Kalmykia to the air basin over the observation zone. Aerosol particles in the surface air layer over this region have been found to contain the products of combustion of oil, coal, and ethylized fuel. These combustion products make a small contribution to the total mass concentration of atmospheric aerosol; however, they are most hazardous to the health of people because of their sizes and heavy-metal contents. A high concentration of submicron sulfur-containing aerosol particles of chemocondensation nature has been recorded. Sources of aerosol of both natural and anthropogenic origins in southern Russia are discussed. 相似文献
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Malinovskaya E. A. Chkhetiani O. G. Maksimenkov L. O. 《Izvestiya Atmospheric and Oceanic Physics》2021,57(5):472-485
Izvestiya, Atmospheric and Oceanic Physics - In this paper, microparticle size distributions due to the wind direction - frontal and tangential in respect to the prevailing orientation of the dune... 相似文献
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M. V. Kurgansky L. O. Maksimenkov A. A. Khapaev O. G. Chkhetiani 《Doklady Earth Sciences》2018,479(2):477-481
As an index of the general atmospheric circulation over the hemisphere, it is proposed to calculate the hemisphere-area-averaged (poleward of the latitude 20°) product of the Coriolis parameter by the wind velocity squared at the upper boundary of the planetary boundary layer. In practical calculations, data on the wind velocity at an isobaric level of 850 hPa were used. Control calculations for the 900 hPa level gave similar results. It is shown that the index introduced adequately characterizes the seasonal and interannual variability of the general atmospheric circulation over both hemispheres. 相似文献
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A. A. Vinogradova L. O. Maksimenkov F. A. Pogarskii 《Izvestiya Atmospheric and Oceanic Physics》2008,44(6):753-762
The propagation of air masses and anthropogenic aerosol pollutants from a large industrial region located above the polar circle in the north of the Kola Peninsula is analyzed. The initial data are five-day-traveltime trajectories of air mass transport from the source, which were calculated for each day of January, April, July, and October over a period of 20 years from 1981 to 2000 according to the NOAA reanalysis data on meteorological fields. Seasonal and long-term variations in the mean concentrations of arsenic and heavy metals (Ni, Cu, Pb, Cd, V) in the surface air layer and precipitation over the waters of the White and Barents seas are studied. The results are compared with the published observational data characteristic of the region under study. It is shown that, on the whole, over a year, the atmospheric flux of persistent ecotoxicants from the Kola Peninsula to the waters of the White and Barents seas is fully comparable to the contribution of their inflowing rivers and this flux is dominant for nickel and copper. 相似文献
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