On May 12, 2008 a large earthquake occurred in Wenchuan, resulting in significant casualties and enormous property loss, and shocked the world. Then the Tangjiashan barrier lake caused by earthquake, made a serious threat to 1.3 million people living downstream. From its formation to being successfully disposed, the entire emergency management of Tangjiashan barrier lake lasted about a month. I...

On 26 May 2003, intense rainfall from a series of thunderstorms in eastern North Carolina caused flooding that eventually destroyed the concrete dam in Hope Mills, draining Hope Mills Lake, and revealing a formerly submerged and buried structure that was identified as a timber crib dam. Inspection revealed these logs to be old-growth longleaf pines, which are now rare on the coastal plain lands...

During 1997-2007 we studied distribution and dynamics of main radionuclides and their biological significance in lake ecosystems within the 10-km inner exclusion zone around the destroyed unit of the Chernobyl nuclear power plant. The main objects of our studies were bottom sediments, water, seston, and different species of hydrobionts from Azbuchin Lake, Dalekoye-1 Lake and Glubokoye Lake. Sel...

Ethiopia began constructing the Grand Ethiopian Renaissance Dam (GERD) in 2011 on Blue Nile near borders of Sudan for electricity production. The dam was constructed as a roller-compacted concrete (RCC) gravity-type dam, comprising two power stations, three spillways, and Saddle Dam. main is expected to be 145 m high 1780 long. After filling estimated volume water bounded about 74 billion m3. f...

Evaporation is one of the largest water losses from most of the dam lakes in Iran. Estimating the evaporation rate enables us to apply the proper evaporation mitigation technologies. In this study, the feasibility of different evaporation estimation methods was studied to find an optimum method with a fair tradeoff between cost and accuracy. The optimum method may vary depending on the climate....

Large dams and reservoirs alter not only the natural flow regimes of streams rivers but also their flooding cycles flood magnitudes. Although effect has been reported for some vulnerable locations, understanding inner-basin variation with respect to effects remains limited. In this study, we analyse Three Gorges Dam (TGD) built on Changjiang mainstream (Yangtze River) investigate dam variations...

We examine how historic flooding in 2011 affected the geomorphic adjustments created by dam regulation along the approximately 120 km free flowing reach of the Upper Missouri River bounded upstream by the Garrison Dam (1953) and downstream by Lake Oahe Reservoir (1959) near the City of Bismarck, ND, USA. The largest flood since dam regulation occurred in 2011. Flood releases from the Garrison D...

Extensive development in the Canadian River watershed in New Mexico and Texas occurred in the 20 century to supply water for irrigation, and municipal and industrial uses. In recent years (2000-2009), these infrastructures have not been able to supply sufficient water to meet demands. The objective of this study was to assess the effects of changes in irrigation allotments and land use to the A...