نتایج جستجو برای: river and reservoir sedimentation
تعداد نتایج: 16858691 فیلتر نتایج به سال:
The article proposes a model for integrated management of a regulated watershed. In such systems, it is important to take into account not only the discharge released at the reservoir, but also the natural flows due to rainfall. The proposed model incorporates both inputs, and can be refined by considering different numbers of sub-basins corresponding to tributaries of the river. We discuss the...
Longitudinal changes in composition, abundance, and distribution of copepods were studied at the transition zone of Paranapanema River-Jurumirim Reservoir (SP, Brazil). The interchange of biotic material between marginal lakes and the river system was also examined. Water samples were obtained from 6 stations along a stretch of 13 km of the Paranapanema River, from an upstream reach with high w...
The processes of sediment transport, scour, and deposition in an alluvial channel are extremely complex. Theoretical developments of sediment transport functions for different flow and sediment conditions are based on assumptions of different degrees of complexity [1]. Some of the simplified assumptions are based on idealized laboratory conditions that may not be true for the much more complica...
a flow-duration curve (fdc) illustrates the relationship between the frequency and magnitude of streamflow. applications of fdc are of interest for many hydrological problems related to hydropower generation, river and reservoir sedimentation, water quality assessment, water-use assessment, water allocation and habitat suitability. this study was carried out in 11 selected watersheds with commo...
The processes of sediment transport, scour, and deposition in an alluvial channel are extremely complex. Theoretical developments of sediment transport functions for different flow and sediment conditions are based on assumptions of different degrees of complexity [1]. Some of the simplified assumptions are based on idealized laboratory conditions that may not be true for the much more complica...
Online Control of the Raw Water System of a High-Sediment River Based on Deep Reinforcement Learning
Water supply systems that use rivers with high sedimentation levels may experience issues such as reservoir siltation. The suspended sediment concentration (SSC) of experiences interannual variation and nonlinearity due to its close relationship meteorological factors, which increase the mismatch between river water source urban demand. raw system scheduling problem is expressed a pump station ...
The ecological forecasting of microorganisms and water quality dynamics in Krasnoyarsk reservoir is based on knowledge of dependence of specific growth rate (SGR) on limiting substrata. It investigated the influence of soil extract on the growth autochtonic bacterioplankton of Krasnoyarsk reservoir. The maximum SGR and Michaelis-Menten constant (on chemical oxidation decomposition (COD) permang...
Soil erosion is a complex process that results in soil and fertility losses from agricultural land and, ultimately, leads to river sedimentation. This study aimed assess various influential factors processes affecting recommend suitable site-based Erosion Control Measures (SECM) for sustainable agriculture while minimizing the downstream rivers reservoir sedimentation Sebeya watershed of Rwanda...
the morphology of a river system is affected by dominant watershed processes includingclimatic, hydrologic, hydraulic, erosion and sedimentation, geological and topographicalcharacteristics of the river environment and watershed. understanding the interaction betweenthe river form and dominant watershed processes in river systems is necessary for recognitionof river behavior and of importance f...
In order to quantitatively evaluate the sediment yield in ungauged basins, it is necessary to use empirical models. The EPM model, as a model which is using in Iran, has sometimes been evaluated. Most evaluations have often been conducted by using river's sediment information and direct measurements of dam reservoir sedimentation have been less used, while the sediment measurement method on r...
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