Validation of chemistry transport model of the lower atmosphere in the central European region of Russia using ground-based and satellite measurement data     

I. B. Konovalov  N. F. Elanskii  A. M. Zvyagintsev  I. B. Belikov  M. Beekmann 《Russian Meteorology and Hydrology》2009,34(4):236-242

A modern three-dimensional chemistry transport model is adopted for computation of air pollution with photo-oxidants in the Moscow megalopolis and in the several neighboring regions. Along the vertical, the model covers the entire troposphere and has a two-scale horizontal structure, when the resolution of the “inserted” domain is about 13 km. The model computation results are compared with the satellite tropospheric nitrogen dioxide measurements and ground-based measurements of the surface ozone concentration. The analysis results of one of the episodes of enhanced ozone content is considered as an example of a possible use of the model considered as a diagnostic tool for studying issues connected with the air pollution in the region under consideration.  相似文献   

Mathematical Modeling of Complex Reaches of Large River Channels     

Belikov  V. V.  Zaitsev  A. A.  Militeev  A. N. 《Water Resources》2002,29(6):643-650

Mathematical models based on shallow water equations and on an equation of bed deformations are proposed to use in designing hydraulic structures and in channel straightening operations in large rivers. Specific examples of application of computer models are cited.  相似文献   

Determination of design hydrological characteristics with consideration of historical maxima     

V. A. Lobanov  V. E. Belikov 《Russian Meteorology and Hydrology》2007,32(2):135-141

Application of information about the historical maxima in hydrological computations allows one to improve design hydrological performances and to pass in some cases from extrapolation to interpolation as a more reliable solution. In this paper, an analytical solution is given for a task of determination of empirical probabilities and parameters of distribution function taking into account any historical maxima, which are located inside as well as outside the time series of observations and for their mixed location. For particular case studies, an advantage of consideration of the historical maxima is shown in comparison with computations without these maxima. It has also been shown that the exponential function between maximum discharges in order of their reduction and ordinates of standard normal distribution are effective enough for fitting the upper part of empirical distribution function.  相似文献   

WRF ARW and CHIMERE models for numerical forecasting of surface ozone concentration     

R. B. Zaripov  I. B. Konovalov  I. N. Kuznetsova  I. B. Belikov  A. M. Zvyagintsev 《Russian Meteorology and Hydrology》2011,36(4):249-257

Results of joint calculations with meteorological WRF ARW model and chemistry transport CHIMERE model are considered as a basis of the modern system of the air quality assessment and forecasting. The system was designed in the Russian Hydrometeorological Center and Institute of Applied Physics of the Russian Academy of Sciences. Detailed prognostic information about the atmosphere state provided by the WRF ARW was used in the CHIMERE model for describing the air mass transport processes, chemical transformation, and pollution deposition. Results of retrieval and forecast of surface ozone concentration as one of main air quality indicators are under consideration. Calculations of ozone concentrations for different configurations of a prognostic system differ in resolution of model grid and in the way the boundary conditions are prescribed.  相似文献   

The Character of Evolution of Rock Fracture Processes from Observations of Acoustic Emission and Time Variations in Radon Volumetric Activity     

Belikov  V. T.  Kozlova  I. A.  Ryvkin  D. G.  Yurkov  A. K. 《Izvestiya Physics of the Solid Earth》2020,56(3):425-436

Izvestiya, Physics of the Solid Earth - Laboratory experiments on monitoring the acoustic emission signals and time variations of volumetric activity of radon during uniaxial loading of a granite...  相似文献   

Numerical Modeling of the Behavior of a Destructive Rain Flood on a Mountain River     

Vasil&#;eva  E. S.  Aleksyuk  A. I.  Belyakova  P. A.  Fedorova  T. A.  Belikov  V. V. 《Water Resources》2019,46(1):S43-S55

Water Resources - The objective of this study was to provide the most accurate presentation of the behavior of a disastrous rain flood, which had resulted in destruction of a dam, casualties, and...  相似文献   

Concentration and Isotopic Composition of Methane,Associated Gases,and Black Carbon over Russian Arctic Seas (Shipborne Measurements)     

Pankratova  N. V.  Belikov  I. B.  Belousov  V. A.  Kopeikin  V. M.  Skorokhod  A. I.  Shtabkin  Yu. A.  Malafeev  G. V.  Flint  M. V. 《Oceanology》2020,60(5):593-602

Oceanology - In Russian Arctic seas, observations of surface methane concentrations (CH4), ozone, nitrogen and carbon oxides, as well as the content of $${{\delta...  相似文献   

Observations of the atmosphere composition in the Moscow megapolis from a mobile laboratory     

Elanskii  N. F.  Belikov  I. B.  Golitsyn  G. S.  Grisenko  A. M.  Lavrova  O. V.  Pankratova  N. V.  Safronov  A. N.  Skorokhod  A. I.  Shumskii  R. A. 《Doklady Earth Sciences》2010,432(1):649-655

Doklady Earth Sciences -  相似文献   

Ozone and nitric oxides in the surface air over northern Eurasia according to observational data obtained in TROICA experiments     

N. V. Pankratova  N. F. Elansky  I. B. Belikov  O. V. Lavrova  A. I. Skorokhod  R. A. Shumsky 《Izvestiya Atmospheric and Oceanic Physics》2011,47(3):313-328

The results of the 1995–2008 observations of the concentrations of ozone and nitric oxides in the surface air over the Trans-Siberian Railway using a mobile laboratory (the TROICA experiments) are analyzed. The features of the spatial distribution and time variability of these gases over the continent within the latitudinal belt 48°–58° N are revealed individually for polluted and background conditions. The characteristic features of their distribution are a decrease in the concentration of nitric oxides and an increase in the concentration of ozone in an eastward direction. On the whole, the process of photochemical ozone formation over the territory of Siberia is slow. Noticeable increases in the concentration of ozone are associated with both forest and steppe fires and with the transboundary transport of pollution from the countries of eastern Asia. The dry precipitation of trace gases plays a significantly larger role in Siberia than in coastal and high-altitude unpolluted regions due to powerful and long temperature inversions.  相似文献   

Gaseous admixtures in the atmosphere over Moscow during the 2010 summer     

N. F. Elansky  I. I. Mokhov  I. B. Belikov  E. V. Berezina  A. S. Elokhov  V. A. Ivanov  N. V. Pankratova  O. V. Postylyakov  A. N. Safronov  A. I. Skorokhod  R. A. Shumskii 《Izvestiya Atmospheric and Oceanic Physics》2011,47(6):672-681

In the summer of 2010, the Moscow megacity during two months was within the zone of action of a blocking anticyclone. The accumulation of pollutants in a closed air mass sharply changed the surface air quality. At the end of July-the first half of August, the extreme situation became even more complicated, because the air from regions of turf and grass fires came into Moscow. According to measurement data of the Moscow IAP RAS station, the maximal hourly mean concentrations of chemically active gases NO, NO₂, CO, O₃, and SO₂ were 175.9, 217.4, 15.8, 134.2, and 15.2 ppb, respectively. For NO₂ and CO, these values are largest over the entire decadal period of observations at the station and many times exceed the MPC level (see table). The concentrations of greenhouse gases CO₂, CH₄, and nonmethane hydrocarbons also sharply increased. Analysis of the variability of gas contents in the surface air and in the atmospheric boundary layer showed a close relation between extreme changes in the atmospheric composition and its vertical stratification.  相似文献