river dam Articles | Environmental XPRT

Water is a catalyst for peace

This papers presents a reflection about the work of the World Commission on Dams during the past two years. The reasons for and against large river dams are discussed, the sources of conflict explored, and arguments advanced for the importance of using water resources governance as a catalyst for cooperation and peace.Keywords: conflict management, dams, peace, rivers, water ...

Aug. 29, 2007

By Inderscience Publishers

Measuring the economic benefits of protecting the Tong River in Korea: a Contingent Valuation study

Whether or not to construct the Tong River Multi-purpose Dam, a large project that will adversely impact local people and the environment, has become quite a controversial issue in Korea. This paper applies a Contingent Valuation (CV) method to obtain a preliminary evaluation of the benefits of protecting the river. A CV survey of Korean households was conducted to estimate their willingness to ...

Jul. 17, 2009

By Inderscience Publishers

40 Year Anniversary of Mt St Helens. The eruption was just the beginning.

Many may remember the eruption of Mt. St. Helens on May 18, 1980. Cornell Pump is located about 50 miles from the volcano as the crow flies, and the eruption was fiercely felt and imminently visible for our hometown. During that eruption, 57 people were tragically killed, the mountain blew more than 1,110 feet (335 m) off its top, and 3.9 billion cubic yards (3 billion meters cubed) of debris ...

May 19, 2020

By Cornell Pump Company

Accumulation of heavy metals in the bottom sediments of the Irkutsk Reservoir

The chemical composition of the bottom sediment, and more particularly the heavy metals content, reflects human developments and impacts on the catchment and reservoir's natural environment. The bottom sediments of the reservoir retained by the Irkutsk Dam have been analysed. The reservoir is mainly supplied by water from Lake Baikal. The following amounts of heavy metals have been found in the ...

Oct. 7, 2013

By Inderscience Publishers

Quantification and molecular characterisation of human sapoviruses in water sources impacted by highly polluted discharged wastewater in South Africa

Sapoviruses (SaVs) were detected and quantified in 8/10 water samples collected from wastewater treatment works (WWTWs) and water sources impacted by these WWTWs in Limpopo Province, South Africa. The median SaV concentration was 2.45 × 106 copies/L and SaV genotypes I.2 and IV were characterised. This study provides new data on the high concentrations of clinically relevant SaVs in rivers ...

Apr. 10, 2015

By IWA Publishing

Controlling the water level of a river dam case study

SmartScan25 provides an efficient solution for controlling water level of the Wardha river reservoir from a distance of 40m (131ft) thus preventing draughts and floods to the district of Amravati, India. Upper Wardha Dam is build up on the Wardha River at a height of 36m (118ft) and 7km (4.35mi) length and situated on the boundary of Amravati and Wardha Districts, India. Controlling the water ...

Feb. 1, 2004

By Solid Applied Technologies Ltd. (SolidAT)

Sarez lake, Rogun basin, Aral sea

This article analyses numerous Internet articles that discuss the use of cross-border rivers in Central Asia, including risks involving the appearance of lakes and the building of artificial water reservoirs in mountainous areas. It also evaluates options to prevent the collapse of natural dams, which created natural lakes on mountain streams, and possible ways of using the water of natural lakes ...

Apr. 11, 2013

By IWA Publishing

Linking environmental flows to sediment dynamics

This is a policy discussion paper aimed at addressing possible alternative approaches for environmental flows (e-Flows) assessment and identification within the context of best strategies for fluvial restoration. We focus on dammed rivers in Mediterranean regions. Fluvial species and their ecological integrity are the result of their evolutionary adaptation to river habitats. Flowing water is ...

Dec. 5, 2016

By IWA Publishing

MonoScan and the indian monsoon case study

MONOSCAN and the Indian Monsoon SolidAT MONOSCAN is the basis for a remote monitoring and alert solution against flood conditions in India. The challenges During the Monsoon season, agricultural lands are flooded near by the city of Aurangabad, State of Maharashtra in India. The local Government required an alert solution to remotely monitor the river level and determine when water should be ...

Jun. 18, 2012

By Solid Applied Technologies Ltd. (SolidAT)

Water quality in healthcare

Rivers are important freshwater resources for many countries and human beings around the world. Social well being, economics and political development have been largely related to the availability and distribution of these freshwater resources. In many parts of the world the adverse health impacts of water supply from rivers, dam construction, irrigation development and flood mitigation have led ...

Apr. 22, 2008

By Inderscience Publishers

Ancient lake outburst `holds clues to climate change events`

A glacial lake outburst that occurred in the Himalayas thousands of years ago holds clues to the dangers faced by the entire Indus river valley system from similar events triggered by rapid climate change, say scientists. A team of Indian geologists from the University of Pune and the Wadia Institute of Himalayan Geology, Dehradun, has been studying the site of the ancient outburst in a deep ...

Jun. 23, 2011

By SciDev.Net

Assessment of hydraulic fish habitat condition using integrated toolkit: a case study of the Geum river basin, Republic of Korea

Artificial changes of rivers, including construction and operation of dams, inevitably lead to physical and ecological changes throughout waterways and their floodplains. In this study, a conceptual model coupled with integrated numerical modeling is presented for hydraulic fish habitat assessment of the Geum River basin, Republic of Korea. Based on the major events which might have affected the ...

Dec. 1, 2010

By IWA Publishing

Black river falls hydro - Case study

CHC provided a complete water-to-wire equipment package to the City of Black River Falls, Wisconsin, for the upgrade of its Black River Falls Hydroelectric Dam, located on the east bank of the Black River in Jackson County, Wisconsin. This historic dam rebuilding project was completed in June 2012, and involved the installation of an additional low-flow generating unit. The water-to-wire ...

Apr. 18, 2019

By Canadian Hydro Components Ltd. (CHC)

Storage effect of dam reservoirs: evaluation of three nonlinear reservoir models

Three different nonlinear models – an exponential function model, a logarithmic function model, and a power function model – were evaluated as possible candidates for the storage–outflow relationship of a reservoir. Also, the storage coefficient was derived by analyzing the impulse response function of the reservoir. Additionally, by applying the theoretical results, the storage coefficients ...

Mar. 25, 2017

By IWA Publishing

Establishment and application of three-dimensional realistic river terrain in the numerical modeling of flow over spillways

We present an integrated three-dimensional (3D) spillway model where the realistic and complicated river terrain is implemented by the platform CATIA (Computer Aided Three Dimensional Interactive Application). This integrated 3D spillway model allows for complicated topographic and geomorphic conditions and describes the spatial distribution of the spillway dam (upstream reservoir, downstream ...

May 31, 2017

By IWA Publishing

Accumulated state assessment of the Peace‐Athabasca‐Slave River System

Effects‐based analysis is a fundamental component of watershed cumulative effects assessment. This study conducted an effects‐based analysis for the Peace‐Athabasca‐Slave River System, part of the massive Mackenzie River Basin, encompassing 20% of Canada's total land mass and influenced by cumulative contributions of the W.A.C. Bennett Dam (Peace River) and industrial activities including oil ...

Aug. 10, 2012

By John Wiley & Sons, Ltd.

Study of the environmental flow of rivers, a case study, Kashkan River, Iran

Environmental flow is an essential factor in the survival of river ecosystems. Growing populations cause increased demand for water and a decrease in water available for habitat. The objective of this study was to estimate the environmental flow of the Kashkan River in Iran, where a dam is going to be built. Due to a lack of ecological data in the area, and to allocate a reasonable value of ...

Oct. 17, 2015

By IWA Publishing

Roadlog: water resources development projects in Southern California.

Introduction Four projects will be visited as part of the 1999 San Diego Association of Geologists annual field trip, emphasizing water resources development projects in southern California underway at the turn of the 21st Century. This Roadlog directs you to the meeting location for the first day of the field trip, followed by a description of the route and a short summary of each major stop. ...

Apr. 14, 2010

By Hargis + Associates Inc

Assessment of riverside groundwater flood risk induced by high river water levels using a numerical model and monitoring data

Large barrages have been constructed on the main rivers in South Korea to store water and mitigate fluvial flooding damage. However, the increase in water levels behind the barrages can potentially lead to a rise in groundwater levels in the riversides. The purpose of this study was to describe the effect of a barrage on groundwater levels and to test the applicability of a numerical model to ...

Sep. 28, 2015

By IWA Publishing

Richmond, VA - Case Study

Location: Richmond, VA Dam Size: 8′ high x 200′ long Water Depth: 6′ Installation Time: 5.5 hours Project Description: Deepen channel to allow installation of new boat slips in marina. Properly sized and positioned cofferdams provide an excellent temporary water barrier to allow easier and more efficient dredging of smaller waterways such as ...

Dec. 21, 2020

By Dam-It Dams, Inc.