farmers in the indus basin, pakistan have generally switched to groundwater for additional water supplies due to the irregular supply of irrigation water; currently over 50% of the agricultural land in the basin is at least partially irrigated by tube-wells. these wells pump fresh groundwater, which essentially is the result of massive leakage from irrigation canals into the originally saltwate...

Abstract The impact of dam construction on the river environment has been widely studied from various perspectives (e.g. biochemical, hydrological, ecological, geomorphological). To obtain new information, recurrence quantification analysis (RQA) is used to analyze dynamics mountain flow and its changes caused by reservoirs with different parameters functions. focuses daily for time periods bef...

Paul C. Rizzo Associates, Inc. (RIZZO) has developed efficient computational tools to evaluate the liquefaction potential of earth embankment dams located within high risk seismic regions. Two relevant case histories are the Saluda Dam and the Santee Cooper East Dam Extension, both structures susceptible to liquefaction, and located in South Carolina. Saluda Dam presents liquefaction risks with...

Dams, environment and local people are interrelated. Large dams have several large scale advantages in irrigation, flood control, power generation, inland navigation etc. It is equally true that it has also many large scale adverse impacts inducing controversy and disputes. For example, despite enormous benefits to Canada from large scale dams, the local people of the Basin are still feeling de...

<p>Leakage or seepage in reservoirs and dams has the potential for structural instabilities persuaded by water leakage pathways linked to economic consequences. An environmental isotopic hydrochemical research was conducted determine source origin of seepages on tunnel Pandanduri dam, Lombok Island, Indonesia. This study aimed examine leak dam site at point based chemistry data stable iso...

Estimation of runoff volume and sediment load is a problem that directly affects the performance of dams due to the reduction in the storage capacity of their reservoirs and their effect on dam efficiency and operation schedule. The simulation models can be considered for evaluation of sediment potential if the continuous field measurements are not available. Soil and Water Assessment Tool (SWA...

Summer typhoons and spring snowmelt led to the riverine spread of continental Fukushima fallout to the coastal plains of Northeastern Japan and the Pacific Ocean. Four fieldwork campaigns based on measurement of radioactive dose rates in fine riverine sediment that has recently deposited on channel bed-sand were conducted between November 2011 and May 2013 to document the spread of fallout by r...