نتایج جستجو برای: bedload
تعداد نتایج: 443 فیلتر نتایج به سال:
Understanding the properties of wildfire-disrupted catchments is crucial for managing river floods and landslide risks. Using a hydrophone, we investigated changes in sediment supply conditions small mountainous (30.8 ha) southern Korea 6 years (March 2014–December 2019). Bedload transport rates mostly increased burned 1–2 post-wildfire (early post-fire regime) but decreased 3 owing to coverage...
Changes in climate affect the hydrological regime of rivers worldwide and differ with geographic location basin characteristics. Such changes within a are captured flux water sediment at river mouths, which can impact coastal productivity development. Here, we model discharge yield Skeena River, significant British Columbia, Canada. We use HydroTrend 3.0, two global models (GCMs), representativ...
Appropriate and acceptable prediction of bed load being carried by streams is vitally important for water resources quantity and quality studies. Although measuring the rate of bed load in situ is the most consistent method, it is very expensive and cannot be conducted for as many streams as the measurement of suspended sediment load. Therefore, in this study the role of suspended load on bedlo...
A three-dimensional moment analysis defines both particle mobility and the average orientation angle of moving bedload particles in meander bends. Accordingly, under identical bed shear stress and near-bed streamline orientation angle on a side slope, bedload particles of different sizes move in different directions. This sorting mechanism has been verified in the sharp meander bends of Fall Ri...
Understanding the statistics of bedload particle motions is great importance. To model hop events which are defined as trajectories particles moving successively from start to end their motions, recently, Wu et al. ( Water Resour. Res. , vol. 56, 2020, p. e2019WR025116) have successfully performed individual-based simulations according Fokker–Planck equation for velocities. However, analytical ...
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