Vinogradova G.M.,Siberian Research Hydrometeorological Institute |
Zavalishin N.N.,Siberian Research Hydrometeorological Institute
Russian Meteorology and Hydrology | Year: 2011
Analyzed are the anomalies of monthly mean values of surface pressure over Eurasia in winter seasons of 1901-2010. It is noted that the centers of large monthly positive pressure anomalies (16-24 hPa) are usually located within the 60°-70°N latitude zone. The Siberian high is well developed but the pressure anomalies in its center amount to 3-8 hPa only. The large monthly pressure anomalies at the isobaric surface of 500 hPa in the first natural synoptic area are mainly accompanied by the E-type of circulation (according to G. Ya. Vangengeim). The number of days with the western (W) type of circulation is extremely small and is practically absent when the anomalies in the center exceed 20 hPa (blocking process). The time periods of increase (decrease) in the annual number of days with W-circulation are well agreed with the periods of the Earth rotation acceleration (deceleration). The positive pressure anomalies were four or five times more frequent in the periods of the Earth angular velocity decrease: in 1933-1972 and after 2004. © 2011 Allerton Press, Inc.
Martynova Y.V.,Russian Academy of Sciences |
Zaripov R.B.,Russian Hydrometeorological Research Center |
Krupchatnikov V.N.,Siberian Research Hydrometeorological Institute |
Petrov A.P.,Siberian Research Hydrometeorological Institute
Russian Meteorology and Hydrology | Year: 2014
Considered is the application of the WRF-ARW atmospheric model to computing weather forecasts for the Siberian region. Provided are some verification scores of the WRF-ARW as compared with those of the NCEP global weather model (USA). The WRF-ARW forecasts for the European part of Russia are briefly considered. The verification scores demonstrate that WRF forecasts are useful during the warm season whereas freely distributed NCEP forecasts have some advantages during the cold season. Described is the software complex used in the West Siberian Territorial Administration for Hydrometeorology and Environmental Monitoring and intended for modeling the atmospheric dynamics over the Siberian region which is based on WRF-ARW. Given is a description of the methodology and specific features of the program realization of the complex. © 2014 Allerton Press, Inc.
Selegei T.S.,Siberian Research Hydrometeorological Institute |
Shlychkov V.A.,Siberian Research Hydrometeorological Institute |
Lezhenin A.A.,Russian Academy of Sciences |
Mal'bakhov V.M.,Russian Academy of Sciences
Russian Meteorology and Hydrology | Year: 2012
A hybrid statistical hydrodynamic model of the formaldehyde pollution forecasting adapted for the town of Tomsk is presented. A statistical component of the model gives the prognostic concentration averaged for the city and the detailing of the spatial distribution is based on the hydrodynamic method. The model tests based on the independent data demonstrated the accuracy of not less than 70%. The hydrodynamic block of the model enables to obtain the relative estimates of contribution of separate enterprises or groups of sources (including the motor vehicle emissions) to the total pollution of the atmosphere in the city. © 2012 Allerton Press, Inc.