The state of atmosphere of Krasnoyarsk (Russia) in 2018-2019 is analyzed based on datasets provided by the Geoportal developed by the authors and connected to the regional system of ambient air monitoring. Statistical and dynamic behavior of PM2.5 concentration in the surface air is studied depending on the meteorological conditions and terrain relief of the city.
This paper considers the state of the atmosphere in the city of Krasnoyarsk in terms of sustainable development based on an analysis of the data presented in the State Reports “On the State and Environmental Protection in the Krasnoyarsk Territory” for the period from 2007 to 2018. The volume of gross emissions, their structure and dynamics, as well as indices of air pollution are analyzed.
In this paper, we calculated the air quality index (AQI) for 2018 based on data from automated observation posts located in the city of Krasnoyarsk. The influence of individual components (pollutants) on the index value is analyzed.
We use a deterministic approach to simulate summer hydrothermal regime of a stream. Our simple model involves calculating water temperature in a coordinate system moving with the water. The physically based estimation of water heat budget takes into account absorption of solar radiation by water surface, emission of thermal infrared radiation (TIR) by water and absorption of atmospheric TIR, as well as convective heating of water and heat loss due to evaporative processes. The proposed model is applied to simulate stable diurnal thermal regime of the Yenisei River, employing the Fourier equation for mathematical modeling. We assess the contribution of each of the physical processes into water temperature and come up with a stable temporal diurnal thermal regime for the Yenisei River.
The problem of the gas ionization in the field of resonant laser radiation taking into account the radiation transfer is numerically solved. The free electrons are formed due to the mechanism of associative ionization. These electrons then collect energy through superelastic processes and initiate the avalanche ionization of the medium by electronic impact. An influence of resonant radiation transfer on kinetics of plasma formation on resonance transition of sodium atom with wavelength 589,6 nm is investigated.
For the first time the optical method of electron-ion plasma cooling, trapping and crystallizing (on microscale) due to laser radiation action on plasma with resonant ions is proposed.
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