Water Resources
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Variations in the Caspian Sea Level in the Historic Epoch
Water Resources - Tập 28 - Trang 1-14 - 2001
Reconstruction of variations in the Caspian Sea level is proposed based on the results of investigations of deposits in the Agrakhan sand bar and bays (or former bays) of the eastern sea coast. The history of sedimentation in particular regions is reconstructed by the radiocarbon dating. Generalized data on the age of deposits are used to construct the most likely temporal course of variations in ...... hiện toàn bộ
Water quality assessment of the Huaihe River segment of Bengbu (China) using multivariate statistical techniques
Water Resources - Tập 43 - Trang 166-176 - 2016
In the study, multivariate statistical methods including principal component analysis (PCA)/factor analysis (FA) and cluster analysis (CA) were applied to analyze surface water quality data sets obtained from the Huaihe River segment of Bengbu (HRSB) and generated during 2 years (2011–2012) monitoring of 19 parameters at 7 sampling sites. The results of PCA for 7 sampling sites revealed that the f...... hiện toàn bộ
Assessing the Effect of Agricultural Production on the Organic and Biogenic Matter Runoff into the Psel River
Water Resources - Tập 31 - Trang 79-84 - 2004
Variations in the concentrations of dissolved organic and biogenic substances in waters of natural watercourses under the effect of natural and anthropogenic factors are considered. Seasonal and long-term dynamics of these concentrations in 1990–2001 are analyzed. The causes of an improvement in surface water quality are established, and the role of some changes in the agricultural production in t...... hiện toàn bộ
The state of water resources in major Mediterranean islands
Water Resources - Tập 41 - Trang 639-648 - 2014
This work analyses the state of water resources in six Mediterranean islands: Corsica, Crete, Cyprus, Mallorca, Malta and Sicily. The analysis is focused on the prevailing social, economic and hydroclimatological characteristics of these islands in order to identify the main common features affecting water availability, demand and use. A detailed analysis of the state of water resources in all the...... hiện toàn bộ
Space and Time Variations of the Concentrations of Dissolved Forms of Microelements in Amur River Water
Water Resources - Tập 47 - Trang 629-640 - 2020
The results of studies of water bodies in the Amur R. basin in 2011–2017 have been used to characterize the space and time variations of the concentrations of dissolved microelement forms. They have been found to vary widely in some areas, because of either the diverse natural conditions and the anthropogenic effect in areas near cities (Chita, Sretensk, Khabarovsk) and populated localities (Nizhn...... hiện toàn bộ
Identification of Nutrients Critical Source Areas with SWAT Model under Limited Data Condition
Water Resources - - 2019
The lack of long term observed data is the main challenge in many simulation-based studies for identification of nutrient critical source areas (CSAs). This study explored the effect of calibration of the Soil and Water Assessment Tool (SWAT) on identification of nutrient CSAs and evaluated capability of this model for finding CSAs under the limited data condition. For this purpose, the Zrebar Lak...... hiện toàn bộ
Elision and Infiltration Waters in the Northern Caspian
Water Resources - Tập 31 - Trang 17-26 - 2004
Elision and infiltration groundwater of the Northern Caspian basin are described. It is shown that a zone of elision brines with a high formation pressure exists under the Caspian Sea. These brines are shown to penetrate from below the Caspian Sea into the underground beds, carry fluids, and facilitate the formation of hydrocarbon fields.
Statistical analysis of structural variations of benthic communities and testing the hypothesis of river continuum
Water Resources - Tập 41 - Trang 543-552 - 2014
Statistical methods for assessing the spatial distribution of benthic communities in different parts of watercourses have been considered as applied to lowland rivers of the Lower Volga region. The applicability domains are described for different response models, gradient analysis, and random skewers methods, which are used to analyze the distribution of aquatic organisms in bottom sediments. Sta...... hiện toàn bộ
Reservoirs in the Drainage Basins of Russian Arctic Seas
Water Resources - Tập 46 - Trang 143-151 - 2019
The space and time distribution of reservoirs over the drainage basins of Arctic seas within Russian Federation territory and the main rivers flowing into the Arctic Ocean is analyzed. The Ob River is considered along with the Kazakh part of the Irtysh Basin. The stages of the hydroengineering development of water resources are identified and characterized. The effect of reservoirs on the water re...... hiện toàn bộ
Theoretical and Laboratory Modeling of Topographic Vortex Bifurcation on Vortex Tori over Two-Stage Axisymmetric Elevation
Water Resources - Tập 49 - Trang 173-183 - 2022
The first, theoretical part of the study presents a mathematical formulation of the problem of background flow over a two-stage elevation and the derivation of a criterion of bifurcation of a topographic vortex generated by this elevation. The spectral problem of the search for bifurcation points is solved numerically by the inverse iteration method. The second part presents the results of laborat...... hiện toàn bộ
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