Author(s): M. Ferrick; G. Lemieux; N. Mulherin; W. Demont
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Keywords: No Keywords
Abstract: Field studies of a reach of the Hudson River have focused on developing a technique to induce the controlled breakup of an ice cover or ice jam by releasing water from an upstream dam. A series of abrupt dam releases generated long-period river waves of different magnitudes, durations and spacings that caused changes in river stage, water surface slope, flow velocity, energy gradient of the flow, and integrity of the ice cover. We monitored river stage and ice cover response at several locations, and repeated the stage measurements with the same releases during open water conditions. These studies have revealed that pulsed releases of a practical magnitude were effective in removing the ice cover from the reach, and they provide basic data for more general analysis of river ice cover breakup.
Year: 1986