نتایج جستجو برای: reservoir sedimentation

تعداد نتایج: 58971  

Houshang Hasounizadeh Reza Tajmehr Samaneh Abdeveis,

Accumulation of sediment transport volume and reduce the useful life of dams, water storage tanks can be. So far, many methods for calculating sediment this is presented in reservoirs are generally classified into two categories: mathematical modeling and experimental .This study examines the effect of using Gstars model parameters in the model, deposition of sediment in the reservoir tank and ...

Journal: :Water research 2009
Paul A Gantzer Lee D Bryant John C Little

Soluble metals such as iron (Fe) and manganese (Mn) often reach problematic levels in water-supply reservoirs during summer stratification following the onset of hypolimnetic hypoxia. The behavior of soluble and particulate Fe and Mn was studied following the installation of a hypolimnetic oxygenation system in Carvins Cove Reservoir, a water-supply impoundment managed by the Western Virginia W...

Journal: :Water 2022

Tarbela is the largest earth-filled dam in Pakistan, used for both irrigation and power production. has already lost around 41.2% of its water storage capacity through 2019, WAPDA predicts that it will continue to lose capacity. If this issue ignored an extended period time, which not far away, a huge disaster occur. Sedimentation one significant elements impact reservoir’s Therefore, crucial a...

Journal: :Sustainability 2022

Reservoir sedimentation is often seen as a site-specific process and usually assessed at an individual reservoir level. At the same time, it takes place everywhere in world. However, estimates of storage losses globally are largely lacking. In this study, earlier proposed rates applied, for first to 47,403 large dams 150 countries estimate cumulative country, regional, global scales. These esti...

2014
Ali Fadel Ali Atoui Bruno J. Lemaire Brigitte Vinçon-Leite Kamal Slim

Chrysosporum ovalisporum is a cylindrospermopsin toxin producing cyanobacterium that was reported in several lakes and reservoirs. Its growth dynamics and toxin distribution in field remain largely undocumented. Chrysosporum ovalisporum was reported in 2009 in Karaoun Reservoir, Lebanon. We investigated the factors controlling the occurrence of this cyanobacterium and vertical distribution of c...

Journal: :Limnology and Oceanography 2021

Dam construction is widespread, changing the hydrological and biogeochemical conditions thereby bacterial communities in rivers of earth. To date, knowledge lacking about cascade reservoirs. Here, we investigated potential functions nine hydropower reservoirs 1290 km upper Mekong River (Lancang China). Along reservoir cascade, water temperature, rather than presence dams, was main cause for geo...

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