Abstract
The dynamics of meteorological parameters, of sodar data on the temperature stratification of the atmospheric boundary layer, and of surface contents of pollutants (nitrogen oxides, carbon monoxide, and ozone) during the passage over Moscow of a structurally complex prominent cold front are discussed. It is shown that the cold front passage is accompanied by stepwise increases in the NO, NO2, and CO surface contents. A probable cause of this phenomenon is a quick entrainment of smoke plumes from high-altitude sources of pollution into the surface turbulent air near the frontal boundary. Intense advection of cold air at the rear of the cyclone can lead to the development of an unstable stratification in the atmospheric boundary layer even in the nighttime. Under these conditions, the minute-scale variability of contents of trace gases increases abruptly as compared to that occurring in the frontal zone of the cyclone prior to the passage of the front. This effect is statistically significant. The dynamics of surface ozone reflects an increase in its background concentrations in arctic air masses.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
A. A. Bachurina and Z. L. Turketti, Atmospheric Fronts (Gidrometeoizdat, Leningrad, 1952) [in Russian].
E. Yu. Bezuglaya, G. P. Rastorgueva, and I. V. Smirnova, What Does an Industrial City Breathe? (Gidrometeoizdat, Leningrad, 1991) [in Russian].
N. F. Elansky, M. A. Lokoshchenko, N. N. Sarana, et al., “Daily and Annual Cycles of Air Pollution over Moscow,” Vestnik MGU, Ser. 5: Geografiya (2006) (in press).
A. S. Zverev, Synoptic Meteorology (Gidrometeoizdat, Leningrad, 1977) [in Russian].
M. A. Lokoshchenko, V. G. Perepelkin, and N. V. Semenova, “Doppler Sodar Measurements of the Vertical Wind Speed,” Meteorol. Gidrol., No. 7, 40–50 (2003).
M. A. Lokoshchenko, N. V. Semenova, A. A. Isaev, et al., “Application of Acoustic Sounding to Study Elevated Inversions and Their Influence on the Pollution of the Lower Atmosphere, in Proceedings of XV Session of RAO (Nizhni Novgorod, 2004), pp. 117–121 [in Russian].
V. I. Tatarskii, The Effects of the Turbulent Atmosphere on Wave Propagation (Nauka, Moscow, 1967; US Dept. Commerce, Springfield, 1971).
V. P. Aneja, R. Mathur, S. P. Arya, et al., “Coupling the Vertical Distribution of Ozone in the Atmospheric Boundary Layer,” Environ. Sci. Technol. 34, 2324–2329 (2000).
E. H. Brown and F. F. Hall, “Advances in Atmospheric Acoustics,” Rev. Geophys. Space Phys. 16, 47–110 (1978).
M. A. Kallistratova, H.-R. Lehmann, J. Neisser, et al., “Erste Ergebnisse von Messungen Mit Einem Vertical-SODAR,” Z. Meteorol. 36, 229–237 (1986).
M. A. Lokoshchenko, “Long-Term Sodar Observations in Moscow and a New Approach of the Potential Mixing Determination by Radiosonde Data,” J. Atmos. Ocean. Technol. 29, 1151–1162 (2002).
M. A. Lokoshchenko, N. Ph. Elansky, and N. V. Semenova, “Influence of Thermal Stratification on Morning Growth of Surface Ozone,” in Proceedings of the 12th International Symposium on Acoustic Remote Sensing (United Kingdom, Cambridge, 2004).
Author information
Authors and Affiliations
Additional information
Original Russian Text © M.A. Lokoshchenko, N.F. Elansky, 2006, published in Izvestiya AN. Fizika Atmosfery i Okeana, 2006, Vol. 42, No. 2, pp. 167–175.
Rights and permissions
About this article
Cite this article
Lokoshchenko, M.A., Elansky, N.F. Dynamics of surface-air pollution during the passage of a cold front. Izv. Atmos. Ocean. Phys. 42, 148–155 (2006). https://doi.org/10.1134/S0001433806020034
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1134/S0001433806020034