On the basis of decision of nonstationary equalization of turbulent diffusion with the set sizes of constituents of speed of wind of u, v, w and coefficient of turbulent diffusion of kx,, ky and kz, new formula is got for the calculation of the fields of concentrations of contaminations of air. A formula takes into account interposes of dispersion of admixtures communication in the direction of axes of the system of coordinates. The formulas of calculations allow to calculate the fields of concentrations above the surfaces of any complication, at any meteorological terms and speeds of wind, including at a calm without the use of Gaussians scales of diffusion.
The results of numerical mathematical modelling of distribution of polluting substances on water area of the Yalpug-Kugurluy lakes are presented. Waters of the river Danube which act in a reservoir through connecting channels, and flow of r. Yalpug are considered as sources of pollution.
It is carried out the long-term forecast of adaptation for system of “ocean-atmosphere” at an athropogenic action within the generalized carbon global cycle model, which reproduces a season dynamics of carbon cycle in an ocean with account for the zone ocean structure, a dependence of the СО2 transfer through the atmosphere-ocean boundary upon temperature of the water and air, wind velocity, biotical activity contribution.
Offered mathematically stand, but the physically grounded algorithm of vector field of relief and air currents. An algorithm will be realized in the two-dimensional and the three-dimensional field of relief and wind and does not require the machine time. The results of estimation of influencing of relief the level of contamination of atmospheric air industrial source.
The critical analysis of complex estimation of quality of waters on different methods on the example of Yugny Bug – Pervomaysk is executed in the article. It is shown that on different users and lacks of these methods does not allow the orientation of existent methods adequately to characterize quality of waters, as environments of dwelling of live organisms. As a result from data of one point of supervisions of water it is possible to characterize from «clean» to «catastrophically muddy». The lacks of existent methods are transferred and a new method is offered.
Ukrainian precipitation conditions’ changes in 2011-2025 are analyzed for some SRES scenarios using model data. The analysis of precipitation anomalies’ distribution is carried out during certain seasons and whole year. It is shown that the precipitation conditions undergo the largest changes for the “moderate” scenario A1B, and the distribution of precipitation in Ukraine will be most insufficient for the “soft” scenario B1.
New approaches to description of global mechanisms in atmosphere models and calculation of the Earth angle moment balance are presented.
Dynamics of moisture conditions is examined in summers and in winters of twentieth century over the territory of the Odessa region. It is found that distribution of the monthly precipitation sums has considerable heterogeneity both in space, and in time. It is conditioned by different conditions of precipitation formation in the first and in the second halves of the last century.
The opportunity of reflection of clouds and dangerous weather phenomena, connected to them, by the help of the reflected polarized signals is investigated in this article.
The tornado’s formation above Ukraine is characterized, the regularity is estimated. The two episodes of tornado near Sevastopol are investigated, main synoptic and hydrodynamic factors are resumed for these causes.
Heterogeneity in the temperature condition of the off-shore stations of Western and East Antarctica and steady growth of temperature of troposphere above the Antarctic peninsula is shown. The characteristic periods of fluctuations in the ground temperature of air are exposed.
By the calculation of correlation communication between the indexes of blocking for the Azorean and Siberian maximums that accompanying by their anomalies of amount of precipitations certain conformities to the law in their spatio-temporal distributing are exposed.
Influence of change of CO2 contents in an atmosphere on intensity of green leaf photosynthesis in conditions of various flax density of a photosynthetic active radiation is considered.
Whit a help of mathematical model the estimation of agroclimatic resources of productivity of Ukraine territory as it applies to growing of cabbage is executed .It is resulted the analysis of the waterthermal mode of sowing of cabbage and its meteorological possible productivity.
Approaches to optimization of structure of sowing areas of agricultural crops in Ukraine are considered.
Simplex-method as method of linear programming under solution of given task is described. Algorithm of
optimization of sowing areas under main agricultural crops in Ukraine is given. Results of optimization of
sowing areas under main agricultural crops on the base of detailed account of agriclimatic conditions of yield
formation are presented with application of simplex method.
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The theory of the biological temporal field, able to unite or «work» at a different level of hierarchy of organization of processes of photosynthesis, photorespiration and respiration of maintenance, is offered. Coming from a theory, by natural appearance the subdivision of productional process of plants on photosynthesis, photorespiration and respiration of maintenance is carried out. Becomes a photorespiration role is clear – it is a process providing indissoluble communication of motions of the biological temporal field. The factor of the biological temporal field is an uniting link at a different level of hierarchy of biological processes of plant.
Modelling processes of absorption of a moisture by a seed, hydrolysis of spare substances, growth of germinal roots and leafs, a condition of plants of a winter wheat on a phase of shoots is offered.
In work the results of numeral experiments are expounded and quantitative estimation of influencing of temperature is given and water availability on clean productivity of photosynthesis and intensity of photosynthesis of culture of sugar beet.
Estimation of the generalized characteristic of soil-climatic terms millet of tillingl and its productivity is given.
In article the structural lacks of normative base SNiP 2.01.14 – 83 on calculation of the characteristics maximal runoff of floods are considered.
It is carried out numerical modelling fluctuate temporal trends for mean monthly discharges (r. Danube) within a new method of description for the hydrological systems. The latter is based on the combining multi-factor systems approach and multi-fractal formalism. It is calculated a spectrum of the fractal dimensions.
The analysis of long-term variability of climatic factors within Podol is carried out. Statistically significant rise in temperature in region in the absence of changes in the tendency of sediments is marked. In a runoff of the rivers the phase which has begun in 1998 of increase of hydraulicity proceeds. Seasonal redistribution of a runoff of the rivers from considered territory became less expressed, and on some rivers return process (increase of a share of a runoff during a spring season) has begun.
The estimation of changes of an annual runoff on the basis of imitating stochastic model of a life-conditioned annual runoff is resulted and model approbation on data of water economic balances for 1991-2003 years is executed.
The technique of designing flood hydrograph on wades of Algeria based on models D.L.Sokolovskiy is offered
Improvement of parameters for the series of spring high water is made on the basis of application of multidimensional integral analysis and the R-modification of factor analysis. Calculations are conducted with 70 hydrological objects, which are located on left bank of the Dnieper, taken as examples. Performance analysis for the application of the aid of integral analysis at improvement of statistical estimations for hydrological descriptions of spring high water is presented.
Fractal properties of river networks (Dniester and Southern Bug) were established by the hierarchica and the statistical models. Fractal dimensions of river networks Dniester and Southern Bug are equal: D = 1,61, D = 1,58, accordingly, lacunary dimension G D = 1,99, Hurst dimension 0 H = 0,573, 0 H = 0,531, accordingly.
Particular solution of Saint-Venant equation is under consideration in the paper, with its inertia constituents taken account of. The analytical result is used for conducting numerical experiments related to the process of river stream outlet onto a tideless coast. Qualitative and quantitative characteristics of initial and transitional areas of the stream as well as ones of a tail of a river stream at a coast come into question.
There were calculated and analysed statistic characteristics of longterm (more than 24 hours) temperature lowerings of sea surface, caused by upwelling during warm season around Odessa. Data of Odessa-port station were used over a period of 90 years. It is shown that typical periodicity of upwelling reiteration has changed much during the period of study. If during the first 60 years mainly low-frequency periodicity (10 years) prevailed, than during last 30 years, opposite, – more high-frequency (inter-yearly). It is conditioned mainly by nonstationarity of wind.
On the basis of algorithms filtration R. Kalmana the method of mastering of the archival information in mathematical hydrodynamic models of the sea was developed with preliminary data processing with the help of algorithm automatic clusterization.
A dynamics of concentration of sea ice of arctic is analyzed; statistical descriptions of lengthened row are calculated. Meaningful periods of vibrations of total concentration of sea ice are definite. Typification on five equal gradations is conducted, proper 20% changeability of sizes of total concentration of sea ice fields.