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Relationships between the principal characteristics of benthic communities, physical characteristics of soil, depth, current rate, and the concentration of pollutants in the soil and water of the Gorky and Cheboksary reservoirs are investigated. Numerous significant correlations are found to exist between these characteristics. It is recommended that the assessment of water quality by characteristics of benthic communities should be made with a great caution. 相似文献
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The regularities in the formation and distribution of normal annual subsurface runoff values in the summer and winter low-water periods and for the year as a whole are considered for Karelia and its characteristic regions. Correlation analysis is used to assess the correlation between the distribution of specific groundwater runoff and a number of runoff-forming factors considered as basic characteristics for areas with similar physiographic and geological–hydrogeological conditions. 相似文献
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D. Yu. Vasil’ev N. K. Gavra E. S. Kochetkova Yu. I. Ferapontov 《Russian Meteorology and Hydrology》2013,38(5):351-358
Presented are the results of analyzing the correlation between the total winter and autumn precipitation and the parameters of spring water runoff in the Belaya River basin for the period of 1936–2000. Five regions are defined, and major factors influencing the runoff formation in each of them are listed. The correlation between the runoff characteristics and the total precipitation is estimated; it can be used for developing the methodological instructions for the runoff forecast in different areas of Bashkortostan. 相似文献
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The formation of the fresh groundwater natural resources of the platform territories is analyzed. It is shown that within the artesian areas of platforms, the formation of the fresh groundwater natural resources is governed by the following main factors: the climatic conditions of the territory; the geological-structural features of the basin, substantially different in its peripheral and central parts; the structure of the zone of intense water exchange; the type of the water-bearing rocks and the character of the spatial variability of their hydraulic parameters; the aeration zone composition; the specific features of interaction between the groundwater and the hydrographic network and micro-relief of the territory. It is emphasized that the formation of the fresh groundwater natural resources within the hydrogeological massifs is governed not only by the physical-geographical conditions, but by the geological-structural factors as well. The formation and distribution of groundwater resources are governed by numerous natural and anthropogenic factors [11]. The combination of these factors and the significance of each factor are not constant but considerably vary in space, depending on the physical-geographical, geological, and hydrogeological conditions.Translated from Vodnye Resursy, Vol. 32, No. 2, 2005, pp. 146–153.Original Russian Text Copyright © 2005 by Vsevolozhskii, Kochetkova. 相似文献
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V. I. Mordvinov E. V. Devyatova O. S. Kochetkova O. A. Oznobikhina 《Izvestiya Atmospheric and Oceanic Physics》2013,49(1):55-65
Low-frequency disturbances responsible for the excitation of torsional oscillations—variations in the zonal mean flow intensity with a characteristic scale of 15–20 days—propagating along the meridian at mid and low latitudes of both hemispheres are investigated [1]. As data observed over the eastern parts of continents and the western parts of oceans are processed with the lag correlation statistics, traveling waves intersecting the eastern parts of continents from northwest to southeast and then returning to the north along the ocean coasts are identified. In this case, trains of anomalies oriented in the zonal direction periodically appear and are destructed in the western parts of continents. The simulation of the propagation of disturbances in the quasi-geostrophic approximation made it possible to explain the specific features of lag correlation statistics over continents by the dispersion of two-dimensional Rossby waves from traveling sources. The turnover of disturbances over Asia and wave trains to the west from the pole were reproduced. Torsional oscillations caused by the dispersion of two-dimensional Rossby waves have a characteristic form of inclined bands in the latitude-time diagram, whose steepness is controlled by the velocity of displacement of the vorticity source along the meridian. 相似文献
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V. V. Zakonnov D. V. Ivanov A. V. Zakonnova M. Yu. Kochetkova V. P. Malanin A. A. Khaidarov 《Water Resources》2007,34(5):540-548
Based on the results of long-term observations, spatial and temporal distribution and accumulation of bottom sediments in the Cheboksary and Kuibyshev reservoirs are assessed, and ways of the bottom complex formation are predicted for the near and distant future. 相似文献
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The principles of hydrogeological zoning of the territory of Russia by the conditions of formation and the distribution of the natural resources of fresh groundwater are discussed. The delineation of the first- and second-order regions is shown to be based on the principles of general hydrogeologic zoning, whereas that of the third and fourth orders is shown to be based on the principles of special hydrogeologic zoning, which can account for the specific structural features of the hydrogeologic section of the zone of intense water exchange, different types of water-bearing rocks, the structure of the unsaturated zone, and, in a number of cases, the climatic and landscape features of the area. 相似文献
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