IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 36th Congress - The Hague (2015) ALL CONTENT : Sediment management and morphodynamics : Hydrodynamics of a river undergoing environmental restoration: buffalo river, buffalo, ny, usa
Hydrodynamics of a river undergoing environmental restoration: buffalo river, buffalo, ny, usa
Due to its environmental degradation including contaminated sediment, poor water quality, and lost habitat, the lower 9.2
km of the Buffalo River is a Great Lakes Area of Concern (AoC). To better understand the riverí»s hydrodynamics,
particularly the interaction between the downriver and upriver flow, since 2009 five horizontal and five vertical Acoustic
Doppler Current Profilers (H-ADCP and V-ADCP, respectively) have been deployed year round in the lower 9km of the
Buffalo River. The ADCPs were programmed to take measurements every 15 (H-ADCPs) or 20 minutes (V-ADCPs). Data
were processed to ensure integrity and permit temporal changes to be investigated. During the period of ADCP
deployment, the Buffalo River has undergone dredging, including a large-scale environmental dredging project which
widened and deepened some sections of the river's channel. ADCP measurements document several different flow
behaviors including high flow events related to runoff from snowmelt and high precipitation and flow reversals related to
the upriver propagation of Lake Erie wind-driven surges. River velocities generally are low (~10cm/s), but may reach up to
2 m/s during high flow events. The Buffalo River also has its own periodic (~1.75 - 2 hr) oscillation (river seiche) that is
best observed during times of non-lake surge activity or low downstream velocities. The river seiche persists year round
during open as well as ice-covered conditions.
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Chapter : IAHR World Congress Proceedings
Category : 36th Congress - The Hague (2015) ALL CONTENT
Article : Sediment management and morphodynamics
Date Published : 27/08/2015
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