Expansion and Contraction of Powder River Between Moorhead and Broadus, MT: Geomorphic Observations and Numerical Modelingby James E. Pizzuto, Univ of Delaware, Newark, United States,
Document Type: Proceeding Paper
Part of: Hydraulic Engineering
Abstract: Sixteen years of annual surveys demonstrate that the channel of Powder River expands at high flows and contracts at low flows. Channel contraction is associated with the formation of benches at the margin of the active bed. Numerical modeling studies suggest that channel contraction and bench formation are 3-dimensional processes that are strongly influenced by channel curvature and advective suspended sediment transport.
Subject Headings: Numerical models | Hydrologic models | Mooring | Rivers and streams | Sediment transport | Channel flow | Model analysis | River flow | Surveys (non-geomatic) | Numerical analysis | North America | United States | Montana
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