The study of air quality at cold weather in Tomsk City with complex of WRF/CAMx models

Abstract

The results of calculations of meteorological parameters and atmospheric air quality during abnormally cold weather (T below -20 o C) in Tomsk are presented. These results were obtained using a complex of WRF/CAMx models. The calculation results are compared with observations of ultrasonic meteo stations and temperature profiler of the Joint Usage Centre (JUC) «Atmosphere» and observations of TOR-station of the IAO SB RAS. The adapted Common Air Quality Index (Citeair II project, supported by the EU) calculated by hourly predicted concentrations is used to evaluate the level of atmospheric pollution.

Application the complex WRF/CAMx models to study the influence of adverse weather conditions on air quality in Tomsk city

“…The Adapt Common Air Quality Index (CAQI) for hourly concentrations is used to evaluate available observations and calculations using the CAMx model 11,12,13,14 . The final CAQI is calculated as the maximum of all the resulting subindexes CAQI * .…”

Numerical study of the stability and destruction of atmospheric temperature inversions under various meteorological conditions

“…] use both numerical simulation and the instrumental tools. In particular, the authors [12][13][14][15][16][17][18][19][20][21] study the pollution situation in some urban areas of Siberia, where in the winter season the Asian (or Siberian) anticyclone with its regular almost calm weather and temperature inversions produces air pollution accumulation in the lower layers of the atmosphere. The surface inversions and inversions slightly elevated above the underling surface often cause environmentally unfriendly situations.…”