In the paper was investigated the modern level and the main trends of air pollution level of formaldehyde in Ukraine cities. Were classified Ukrainian cities by the multiplicity exceeding of the maximum permissible concentration (MPC), the direction and intensity of time changes of concentrations of formaldehyde in the air of cities.
It is proposed a new approach to non-linear modeling and forecasting chaotic processes in hydroecological systems, which is based on the conception of compact geometrical attractor and neural networks (artificial intellect) algorithms. As an illustrative example of using the method, the dynamics of the nitrates concentrations in the Small Carpathians river’s watersheds in the Earthen Slovakia during 1969-1996 years is predicted.
An improved theoretical scheme for sensing temporal and spatial structure of the air pollution fields in the industrial city’s atmosphere is considered and applied to an analysis of the Odessa atmosphere aerosol component data. Effects of stochasticity and chaotic features in the dusty air pollution field structure are discovered on the basis of the correlation dimension approach to empirical data.
On the basis of previously developed models of neural network modelling it is studying a dynamics of neural networks with different types of input patterns and a problem of forecasting the spatial and temporal structure of the dusty concentration fields for the industrial city’s atmosphere as well as the rainfall intensity fields.
The theoretical basis’s of a new general formalism for an analysis and forecasting an impact of anthropogenic factors on the atmosphere of an industrial city are presented. It is developed a new compact general scheme for modeling temporal fluctuations of the air pollution concentration field temporal fluctuations ,based on the methods of a chaos theory.
It was considered peculiarities formation of low-level jet streams over the territory of the North-Western Black Sea and their connection with the presence of a weak winds at the ground surface.
We study the time distribution of the North Atlantic Oscillation index during1951-2010. It was found that the positive phase of this teleconnection pattern was dominant during the global warming and resulted in the significant increase in the number and extremity of drought in Ukraine. It was also revealed the significant relationship between changes in the indices of drought and North Atlantic Oscillation with the period of 2-3 years.
It was proposed the stages of energetic interaction for blockings and processes that are surrounding the anticyclone. The typical schemes for the conversion between different forms of energy during each stage.
There are presented the elements of an advanced non-stationary theory of the global mechanisms in the atmosphere low frequency processes, the Earth angle moment balance, teleconnection effects, and the radio-waveguides.
In this paper new synoptic analysis techniques in the production of specialized weather forecasts are considered. In particular, an approach towards using prognostic data from the most common numerical models combined with computational weather forecasting techniques is suggested for operational activities of a meteorological office serving aviation.
On the basis of wavelet analysis and multifractal formalism it is carried out an analysis of fractal structures in the turbulent processes (parietal pressure pulsations in a turbulent flow in the pipe).
The features of El Niño-Southern Oscillation influencing on forming of total ozone fields are shown. The statistically significant interactions periods between El Niño parameter, which is atmospheric pressure normalized difference between Tahiti and Durbin points and main components of total ozone fields are determined.
Comparative characteristics of the annual and seasonal rainfall regimes on the territory of Ukraine for the period up to 2030.Noted the expected overall increase in annual precipitation and the unevenness of their loss by seasons. Expected decline in rainfall in the summer in the steppe zone of Ukraine.
The article gives the comparative quantitative evaluation of the thermal conditions of soil at 0-20 cm with air temperature at the weather shack level. On the basis of information contraction the complex zoning of indicators of thermal resources in Odessa region in average scale for medium-loamy soils with 5 mezoareas is examined.
The influence of agrometeorological conditions on photosynthetic productivity of soya is under consideration in the paper. Net productivity of the photosynthesis of soya plants was determined by interphase periods of development.
The features of the use of satellite vegetation indices as the normalized vegetation index NDVI and normalized water index NDWI, in the empirical modeling of grain yields were considered. For areas of the steppe zone of Ukraine were built the linear regression models for the winter wheat yield, that uses as predictors the parameters derived from the basic vegetation indices – vegetation conditions index and proposed wet vegetation index. Also used the regional blocking index, which considering the atmospheric circulation conditions at the beginning of the growing season. Verification of the models showed a satisfactory prediction accuracy with sufficiently high of the lead time.
The article present the Southern Bug water quality evaluation near Pervomaisk city by different domestic methods. The domestic standards deficiencies in comparison with EU standards are shown. The method analysis in valid normative DSTU 4808.2007 document was carried out and its deficiencies were shown in this article. The domestic methods improvement recommendations of water quality evaluation are given.
Based on the water balance components.of a study of the external water exchange in the largest of the Dnieper reservoirs with the water year.
The article presented graphical and analytical dependences between hydrometeorological parameters in the area Kakhovka reservoir for determining the evaporation of its water surface during operation.
On the base of “climate-runoff” model main trends in change of water resources of Ukraine are established. In the investigation data of global warming scenario A1B (branche M10) are used. Isoline maps of precipitation-evaporation ratios, average long-term values of annual runoff and its changes are shown.
Proved and implemented design scheme to identify possible markers of water in the Khadzhibey Estuary under the simultaneous passage of spring floods and rain-induced floods of rare probability of exceedance in a long-term period.
It is conducted the schematized estimation of theoretical potential of the iributary rivers South Bug and Dnister of the Vinnytsia region.
It is carried out numerical modelling characteristics of the fluctuation temporal trends of changing nitrates concentrations in some catchments in a few regions of the Small Carpathians on the basis of the new chaos-geometrical approach combining the chaos theory and dynamical systems methods.
It is performed statistical processing the series of maximal runoff for rivers of the Dniester-Prut interfluves basin.
The article examines the scientific and methodological basis for the creation of calculation techniques necessary for normalization characteristics of maximum flow spring flood and rain floods rare probability of recurrence in the territory of the Black Sea Lowland.
Calculations of the spatial distribution of the suspended matter concentration and wave parameters in the coastal waters of the Black Sea near the Kuyalnik estuary were made.
The analysis of the features of water circulation in the Black Sea on climate data was carried. The annual average flow velocity and the water rate in the Black Sea were calculated by the dynamic method and the evaluations of the maximum and minimum the seasonal water flows were made. The periods of active development of dynamic processes in the waters of the sea and periods of weakening were established.
The relation among atmospheric processes, current system intensity and ocean level in the subtropical Pacific area is shown with the use of a sea level network. It was found that changes in intensity of a current system occur as a auto-oscillation process with a cycle duration from three to eight years and is associated with atmosphere-ocean interactions. The key point (trigger) is the achievement of a maximum value of the ocean level in the western tropical
Dynamics of time variations of the air pollutants (dioxide of nitrogen, sulphur etc) concentrations in an atmosphere of the ukrainian industrial cities (Mariupol) with using advanced non-linear analysis, prediction and chaos theory methods is studied.
On the basis of the theory of chaos ii is performed an advanced chaos-geometric analysis of time series of concentrations of sulphur dioxide in Gdynia (Gdansk region) and calculated spectrum of the correlation dimension, that confirms the chaos existence. Estimation of the predictability limit in a short-term forecast is given.
Within the refined 3-model model of kinetic processes there is quantitatively examined an effect of atmosphere kinetic cooling while passing powerful laser radiation through a mixture of CO2-N2-H2O atmospheric gases.
It is carried out numerical modelling fluctuate temporal trends for annual runoff (r. Danube) on the basis of a chaos theory methods. It is considered a short-term forecast model.