Pakistan’s society and economy are highly dependent on the surface groundwater resources of Indus River basin. This paper describes development implementation a daily System Model (IRSM) for Pakistan Basin Irrigation (IBIS) to examine potential impact reservoir sedimentation provincial water security. The model considers both physical management characteristics system. model’s performance in re...

Many techniques have been developed to produce landslide susceptibility maps. However, mapping the spatial distribution of involves critical steps. This study evaluated occurrence shallow landslides in upstream areas Jingshan River, Taiwan, where heavy rainfall has resulted increased and reservoir sedimentation. The case was conducted using logistic regression, an instability index method, supp...

Deposition of sediment inside the conduit structures reduces the flow cross section area and increases the flow roughness which causes reduction of flow discharge passing through the conduit. Among the methods which can prevent sediment deposition is non sedimentation condition in the structure, Since the critical section of the inverted siphon in sedimentation is the outlet. In the begining of...

The accumulation of sediments in reservoir is always a problem. Over time, these accumulations occupy the volume meant for water management, dramatically reducing reservoir's effectiveness. environment river basin below undergoes significant changes. In this regard, assessing changes volumetric W-H characteristics, particularly reservoirs built on high turbidity rivers, critical. Mataghis Reser...

The wandering reach of the lower Yellow River has undergone significant channel degradation since Xiaolangdi Reservoir operation, with a cumulative scour volume 14.1 × 108 m3 in 1999–2018, and severe resulted rapid incision this reach. annual river bed downcutting depths at section- reach-scales water stages low high flows were calculated to investigate characteristics quantitatively. results s...

We exposed 9 wk old rainbow trout Oncorhynchus mykiss to ambient levels of Myxobolus cerebralis infectious stages at 4 sites of suspected differing infectivity in the Colorado River. Exposure was estimated by periodic filtration of river water at each exposure location. After a 32 d exposure, the fish were held in the Colorado River at a common site for over a year. Resulting infection was eval...

The fish assemblage of the Canadian River in Texas historically was dominated by Hybognathus placitus and Notropis girardi. These species represented > 90% of fishes collected fiom the Canadian River in 1954-1955. Construction of two reservoirs on the Canadian River in the 1960s (Ute Reservoir, New Mexico, 1962; Lake Meredith, Texas, 1965) altered hydrologic conditions in the river and affected...