Stratified Flow in an Impounded Inland River

by Emmet M. Owens, (A.M.ASCE), Syracuse Univ, Syracuse, United States,
William R. Naumann, (A.M.ASCE), Syracuse Univ, Syracuse, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


Stratified flow in the Seneca River of central New York is described. This flow condition occurs in the vicinity of the outflow from saline Onondaga Lake, and exists both upstream and downstream of the lake outflow. The stratification has been observed only during summer and early fall when the river flow is low. The stratified flow extends into the lake outlet channel, so that flow of water from the lake to the river (opposite the normal direction) occurs. As Onondaga Lake is hypereutrophic, dissolved oxygen is rapidly depleted in the bottom waters of the river channel in the stratified region. Observations of stratification conditions in the river are described, as is a simple mass transport model which incorporates the important features of this unusual flow regime.

Subject Headings: River flow | Water stratification | Stratified flow | Water storage | Lakes | Streamflow | Rivers and streams | Channel flow | New York | United States

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