نتایج جستجو برای: bank erosion
تعداد نتایج: 93406 فیلتر نتایج به سال:
Erosion of the river banks in India have become recurrent event causing enormous problem for the people and the Government. With the increase of population along the bank of the rivers, the erosion of township, cluster of villages and important communication system, govt. resources are over exploited. Presently a large number of township, villages, human dwellings a number of important installa...
abstract ground water flow and skin is the most important phenomenon in the process streams are involved not only in the face of the whole earth, but also of the life of man on earth can. degradation of coastal erosion, lateral stability and continuity in iran and around the world each year destroys fertilized agricultural lands around the river, coastal installations, bridges, and is general h...
Shifting Sands: Assessing Bankline Shift Using an Automated Approach in the Jia Bharali River, India
Bank erosion hazard is a frequent occurrence that poses threats to floodplain ecosystems. This analysis examined changes the Jia Bharali River channel in India using GIS-based Digital Shoreline Analysis System [DSAS]. The Bharali’s future was predicted so as identify most erosion-susceptible zones. rate of bankline movement calculated remotely sensed data collected over period 45 years (1976–20...
In river meandering, when flow passes through a bend, reduction of flow velocity and rising hydrostatic pressure cause super elevation phenomena at outer side and reduction of water surface at inner-side of the bend. A helical motion results, causing erosion of the outer side of the bend. Installation of submerged vanes on the stream bed can reduce erosion of the outer bank significantly. In th...
Fluvial processes and channel development on landscapes have recently received more attention as designers attempt to establish or replace natural streams on disturbed or degraded sites. Several approaches using similar parameters have been developed to evaluate stream development and erosion processes on natural soils and landscapes. Such approaches include the Manning’s and stream power equat...
A large amount of soil loss is caused by a small number of extreme events that are mainly responsible for the time compression of geomorphic processes. The aim of this study was to analyze suspended sediment transport during extreme erosion events in a mountainous watershed. Field measurements were conducted in Wangjiaqiao, a small agricultural watershed (16.7 km(2)) in the Three Gorges Area (T...
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