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  Subjects -> WATER RESOURCES (Total: 160 journals)
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Water Resources
Journal Prestige (SJR): 0.324
Citation Impact (citeScore): 1
Number of Followers: 21  
 
  Hybrid Journal Hybrid journal (It can contain Open Access articles)
ISSN (Print) 1608-344X - ISSN (Online) 0097-8078
Published by Springer-Verlag Homepage  [2467 journals]
  • Features and Factors of Hydrological and Morphological Changes in the
           Agrakhan Bay at the Mouth of the Terek River in the 20th–Early 21st
           Centuries

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      Abstract: The Agrakhan Bay of the Caspian Sea is a unique hydrographic and environmentally valuable object at the mouth of the Terek River. At the beginning of the 20th century, it was a typical sea bay; however, by the 21st century, it lost the features of a marine area and a single water body and was divided into two parts with their specific hydrographic network, water regime, landscapes, biota, and anthropogenic load. Rehabilitation of the wetlands of the former sea bay requires urgent and scientifically grounded measures, as well as good knowledge of the causes and features of its rapid degradation and data on its current hydrological-morphological and hydroecological state. In 2018–2020, the authors carried out a series of field reconnaissance, geodetic, hydrometric, botanical, and hydrochemical works in this part of the mouth, created a network of stations, took numerous water samples and bottom soil samples, and analyzed them in laboratories. A vast array of data from Roshydromet (Russian Hydrometeorological Service) stations, as well as multi-temporal cartographic materials and satellite images, have been accumulated and studied; a multilayer GIS and various maps, empirical dependencies, diagrams, and graphs have been constructed; the results of studies by outside specialists have been considered. This study has made it possible to comprehensively describe the current state of the former Agrakhan Bay, build a depth map, a landscape map, a map of bottom sediments, a map of macrophytes, and a map of hydrochemical parameters, describe the water regime and water balance of the main water bodies of the former bay, determine the relationships between the main hydrological and morphological characteristics, etc. Patterns, causes, long-term stages, and parameters of the unfavorable morphodynamics of the Agrakhan Bay in the 20th century and at the very beginning of the 21st century have been studied. This has made it possible to justify measures for partial restoration of the hydrological and ecological potential of the water bodies of the former Agrakhan Bay.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050098
       
  • Short-Term Forecast of Water Levels in Don Mouth Area Using Hydrodynamic
           Simulation

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      Abstract: The article presents the results of the test operation of a calculation–simulation complex (CSC) for level forecasting in a navigable branch in Don R. mouth area with daily lead-time (CSC Don-model). The main component of the CSC is a hydrodynamic model of the Don mouth area, combined with a model of Sea of Azov circulation. The quality of level forecasts is evaluated, and the main sources of forecast errors are identified.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050177
       
  • Current Distribution of Water and Sediment Runoff at the Parana Delta and
           Features of Its Water Balance

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      Abstract: The current values of the components of the water balance of the Parana delta, one of the largest deltas of South America, as well as the results of calculations of the actual distribution and redistribution of water runoff and sediment yield in the delta branches are presented. Response of the components of the Parana delta water balance on climate variations is revealed. Long-term changes in the water and sediment flow distributions in the delta branches are considered. Analysis of dynamics of estuarine delta coastline shows stable increase of the river delta area, which could cause dangerous hydrological phenomena at the Parana delta.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050050
       
  • Geographic-Hydrological Register of Deltas of Main World Rivers

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      Abstract: River deltas which are among the most variable and vulnerable geographic objects may be considered as effective indicators of large-scale global and regional, natural and anthropogenic changes of environment. The up-to-date state of deltas of the main rivers in Russia and all over the world are described in the Register which is presented in this paper. The Register includes geographic characteristics of deltas (including their hydrologic-ecologic state), hydrographic, morphometric and hydrologic characteristics of the deltas.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050062
       
  • World Experience in Numerical Simulation of Flow Dynamics at River Mouths

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      Abstract: The article presents the history, mathematical background, and a review of the current state of numerical simulation of the interaction dynamics between river water and seawater in river mouth areas. The vast and diverse experience of the Russian and foreign researchers since the late XX century up to now has been generalized.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050025
       
  • The Carbonate System of the Estuaries of the Syran and Ul’ban Rivers
           (Ul’banskii Bay, the Sea of Okhotsk) during Spring Flood

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      Abstract: In the period of summer flood 2016, a number of chemical characteristics associated with carbon cycle were studied in the estuaries of the Syran and Ul’ban rivers in the area of the Shantarskii Archipelago with the total water discharge of 194.7 m3/s. The zone of mixing at the salinity of <20‰ is the source of CO2 for the atmosphere with the estimated CO2 flux up to 112.7 mmol m−2 day−1. At the salinity >20‰, the thickness of the photic layer increases abruptly and photosynthesis starts to dominate, resulting in the formation of CO2 flow from the atmosphere into water with a rate of up to 30 mmol m−2 day−1. A model CO2 flow at the water/atmosphere interface is presented at a wind speed from 2 to 15 m/s for the entire mixing zone, the water in which generally absorb atmospheric CO2. A specific feature of the basin compared with the estuaries of the Uda and Usalgin rivers in the zone of the Shantarskii Archipelago is the combination of the relatively low volume of water and solid runoff with a relatively high phosphorus flux in mineral and organic forms.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050141
       
  • Mouth Areas of Rivers on the Southwestern Coast of the Sea of Okhotsk and
           Role of Ice in the Formation of Their Channels under Conditions of High
           Tides

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      Abstract: A wide variety of river mouths has been established on the western coast of the Sea of Okhotsk; their variety is determined by the geomorphological features of the territory and a specific effect of high sea tides and active ice phenomena on their formation. Factors influencing the dynamics of the mouths under the combined effect of tides and ice are considered. It has been revealed that river ice is intensively deformed during tides and forms coastal ice barriers protecting steep river banks from erosion. Outside the channel, ice produces a significant exaration of the banks, thereby forming peculiar terrace-like surfaces along the rivers. The content of terrigenous material in ice has been quantitatively assessed by the layer-by-layer analysis of the content of inclusions, taking into account their uneven distribution in the ice core. The bulk of sediments in the Tugur River is deposited near its mouth in the southern part of the Tugur Bay. Under conditions of shallow depths at low tide, ice settles on the ground over a large area, thereby contributing to the inclusion of a significant mass of terrigenous material into the ground. Our research has shown that one of the main factors preventing the formation of a delta at the mouth of the Tugur River is the removal of influent suspended and bedload sediments by ice from the mouth zone of the receiving water body.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050104
       
  • Studying Delta Dynamics by Space Photographs

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      Abstract: A review of the joint studies of the Chair of Land Hydrology and the Laboratory of Aerospace Methods, the Faculty of Geography, Moscow State University, on river delta dynamics based on space photographs is given. The article presents the basic principles of studying delta dynamics, including the choice of space photographs made at different times, ensuring their geometric, spectral, and content comparability; the roles of the visual and automated methods of image processing are characterized. A brief characteristic is given to the fund of the required space photographs and maps. The results of studies of the long-term dynamics of deltas based on old maps and modern images are discussed, along with studies of delta dynamics associated with climate changes (the Lena, Yenisei, and Northern Dvina), large-scale level variations in the Aral and Caspian seas (the Amu-Darya, Ural, Terek, Sulak, and Kura), and the intense economic development (the Danube), as well as delta transformations caused by changes of river flow direction (the Huang He).
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050074
       
  • Sea Level Fluctuations as a Key Factor in Delta Formation

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      Abstract: Based on studies of the geological and geomorphological structure of the mouth areas of the Ob, Pyasina, Khatanga, and Lena rivers, a model for delta development as a result of fluctuations in the level of the Arctic Ocean as a receiving water body is proposed. It is proven that the current appearance of the deltas has been formed as a result of long-term changes in the erosion basis; based on the study of organomineral sediments (specific sediments accumulated during marine transgressions), a method for identifying episodes of high water level of paleowater bodies is proposed.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050037
       
  • The State of the Roshydromet Hydrological Observation Network in the Mouth
           Areas of RFAZ

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      Abstract: Taking into account the entire mouth network in its current boundaries, the authors pioneered in representing the historical development of hydrological observations at the stationary Roshydromet observation network in river mouth areas in the RF Arctic Zone. The main current problems of the state observations in the mouth areas of Arctic rivers are presented. The drawbacks in the organization of water level observations in the mouth network and water flow in the outlet sections of rivers emptying into Arctic seas are considered. Detail analysis is given to the agreement between data on water flow given in publications of RF Water Cadaster and the similar data stored in the Automated Information System “State Monitoring of Water Objects.” The hydrological data published in the Water Cadaster in many cases disagree with those in the latter system. This situation leads to errors in the estimates of hydrological characteristics.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050153
       
  • Current Scientific and Applied Problems of River Mouth Hydrology

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      Abstract: The current state, the hydrological problems of river mouths, and the history of their studies as specific geographic objects are discussed, and the main lines and schools of researches in river mouths are characterized. Special attention is paid to the theoretical results of river mouth studies: water flow dynamics and water regime, river water and seawater mixing, and morphological processes. Finally, the urgent problems in river mouth hydrology are discussed.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050116
       
  • Early Hydrological Investigations in the Danube Mouth Area and Their
           Further Development

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      Abstract: The article focuses on the history of researching the hydrometeorological regime in the Danube mouth area. In the middle of the XIX century, the start of the investigations was related to the necessity of improving navigation conditions in the area. In the post-war years, hydrological works in the delta and the nearshore zone of the Danube mouth were conducted by hydrologists from the USSR and Romania within an agreed program, using common methodologies and instruments of measurement. The main goal of systematic hydrological research carried out by the Danube Hydrometeorological Observatory in 1958–1990 was to assess changes in the hydrological regime of the Danube mouth area under the influence of implemented and planned water management activities, such as dredging, channel straightening, construction of protective dikes and irretrievable water runoff withdrawal. In 1991–2021, the cooperation between Ukrainian and Russian hydrologists resulted in a joint monograph published in 2004 (it paid much attention to researching the impact of modern climate changes on the hydrological conditions in the basin and delta of the Danube River). In the last 30 years, a pressing political, socio-economic and environmental challenge in the Danube region has been to restore the national navigation canal Danube–Black Sea through the Ukrainian part of the delta. The prospects of further development of hydrological investigations in the Danube mouth area under global climate change consist in modernizing the system of hydrological and morphological monitoring by means of material and technical re-equipment of the Hydrometeorological Service of Ukraine, implementing basin principles of water resources management, along with strengthening international cooperation.
      PubDate: 2022-10-01
      DOI: 10.1134/S009780782205013X
       
  • Mapping of the Natural and Anthropogenic Landscapes of River Deltas in
           Different Regions of the World Using Satellite Imagery

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      Abstract: The article suggests a method of mapping the natural and anthropogenic landscapes of river deltas based on satellite imagery in the publicly accessible information system Google Earth. In this system, images from the Landsat satellite help to identify a common landscape contour network. The contours are interpreted using super-high resolution images QuickBird and GeoEye, which are included in the system. Using detailed information for overview mapping with a hundred-times difference between the scales of interpretation and the drawn maps poses certain difficulties. The article considers different variants of the given method on the example of mapping the deltas of the Niger, Indus, Irrawaddy, Zambezi and the Huanghe River.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050086
       
  • Wintertime Arctic Oscillation Harbinger of Spring Floods in the Mouth
           Areas of the North-Eastern European Rivers

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      Abstract: Based on 1965–2020 series we have shown relationships between the features of the water runoff of the spring flood in mouths of large rivers of North-Eastern Europe and the wintertime phase of the Arctic Oscillation (AO). The positive phase of the wintertime AO is a harbinger of enhanced spring floods in the region. Enhanced winter advection of warm and humid Atlantic air during winters of the positive AO phase leads to increased wintertime snow accumulation and earlier onset of spring snowmelt. In the springs preceded by the positive AO wintertime events, floods come earlier and are more intensive. With a general increase in total volume of flood water runoff in years of the positive AO phase, its intra-seasonal redistribution occurs. Results from the study imply a possibility of early warning of enhanced spring floods based on the predictions of the wintertime positive AO events.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050049
       
  • Assessment of Influences of Anthropogenic and Climatic Changes in the
           Drainage Basin on Hydrological Processes in the Gulf of Ob

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      Abstract: Changes in the runoff of rivers flowing into the Arctic Ocean caused by climate changes and increasing anthropogenic load lead to foreseeable transformations of hydrological processes in the mouth areas of the rivers. Climatic, water-balance, and hydrodynamic models were successively applied to evaluate the effect of climatic and anthropogenic changes in the drainage basin of the Ob river estuary on seasonal hydrological processes in the Gulf of Ob. Climate changes along with considerable seasonal redistribution of river runoff in the drainage basin of the Gulf of Ob, mostly due to its increase in winter, were found to cause no significant changes in the seasonal hydrological mouth processes in 1980–2018. Estimates for a period of up to 2050 showed that climate changes under various scenarios will cause an increase in streamflow from the basin, which will reduce the penetration of saltwater into the gulf.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050165
       
  • A New Approach to Studying Delta Formation

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      Abstract: The article examines delta formation processes and suggests a new approach to their study. In the paper, delta formation is divided into its active and passive component. The article assesses natural and anthropogenic external factors that impact delta formation, as well as modern trends in changing of the world’s deltas.
      PubDate: 2022-10-01
      DOI: 10.1134/S0097807822050128
       
  • Water Consumption and Sanitation in the Municipalities of the Republic of
           Crimea and City of Sevastopol: Current Status and Problems

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      Abstract: Statistical data on water intake from sources, its use for various needs, and the discharge of wastewater and pollutants in the Republic of Crimea and city of Sevastopol for 2014–2020 are analyzed. A sharp change in the structure of fresh water intake has been revealed. The influence of circulating water supply on savings of fresh water for production needs is shown. Data on the growth of water losses as a result of an increase in the wear of water supply networks are presented. The dynamics of a constant decrease in the specific water consumption for drinking and domestic needs in Crimean resorts is shown. Changes in the volume of water use on irrigated lands and changes in the structure of irrigated land use have been assessed. Despite the reduction in the volume of wastewater, the discharge of pollutants into water bodies has significantly increased.
      PubDate: 2022-08-01
      DOI: 10.1134/S0097807822040030
       
  • State of Art of Review on Climate Variability and Water Resources:
           Bridging Knowledge Gaps and the Way Forward

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      Abstract: Sustainability of water resources assumes great concern in view of global climate change. In this study, descriptive, thematic and mechanism analyses of current literature were carried out with the aim of understanding linkages among climate variability, climate change and water resources, bridging knowledge gaps and recommending framework for future research. Though a large body of research attempted on themes of climate variability and water resource, understanding on how water systems will likely to respond to a changing climate remained under-emphasized. The study calls for timely and effective management of water resources using climate scenario-driven data, reliable models and policy beliefs.
      PubDate: 2022-08-01
      DOI: 10.1134/S0097807822040169
       
  • Extreme Floods in Crimean Rivers in 2021

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      Abstract: The results of studies of extreme floods in Crimean rivers in the summer of 2021 are presented. Analytical and historical generalization is made for the problem of the adverse effects of water and mud flows in Crimea, and the factors of flood and mudflow formation in Crimean rivers in 2021 are analyzed. The maximal water discharges and levels are evaluated, and the dynamics of flood wave propagation in the Bel’bek River basin is examined. The hazardous hydrological phenomena that have taken place are shown to be unique, and their adverse effects are evaluated.
      PubDate: 2022-08-01
      DOI: 10.1134/S0097807822040042
       
  • Planning of Water-Saving Green Space System Based on GIS Technology and
           Archydrodata Model

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      Abstract: Following sponge city concept, taking Qunli New District as study object, and planning water-saving green space system (WGSS) that can use rainwater resources. GIS and ArcHydro were used to analyse hydrological characteristics, extract gathering areas and outlets of rainwater, and determine location and scale of WGSS and reservoir in district. Amount of collectible rainwater in district reaches 3.79 × 106 m3/a; WGSS should be planned in areas where value of rainwater harvesting cumulant reaches 47−482. Reservoirs should be planned in areas located at the end of level-3 or level-4 streamnets and where rainwater harvesting cumulant reaches 283–3.37 × 105. A total of 563.8 hm2 is planned as WGSS, accounting for 22.27% of the total, and 29 reservoirs can be constructed. In the long-term, the total area of green spaces could reach 857.8 hm2, with green space rate up to 34%, public green spaces reaching 13 hm2/per capita, with park green spaces reaching 422.7 hm2, productive green spaces, 50.4 hm2, protective green spaces, 133.5 hm2, accessory green spaces, 170.5 hm2, and other types green space, 80.7 hm2. Park, productive, and most of accessory green spaces have been planned within proposed WGSS, accounting for 66% of total area in the long term.
      PubDate: 2022-08-01
      DOI: 10.1134/S0097807822040121
       
 
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