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|Title:||HYDROLOGIC ROUTING OF FLOW IN ARID EPHEMERAL CHANNELS|
|Publisher:||ASCE-AMER SOC CIVIL ENG|
|Citation:||JOURNAL OF HYDRAULIC ENGINEERING-ASCE, 121(6), 466-471|
|Abstract:||Hydrographs of ephemeral streams in an arid region usually decrease significantly in magnitude, downstream I unless they are augmented by tributary flows. Estimation of outflow hydrographs from a channel reach is essential for the development of water-resources systems. A hydrologic-flow-routing technique for arid ephemeral channels is developed. The hydrologic-routing equations for the movement of flood waves are modified by the inclusion of a nonlinear volumetric transmission loss rate term, which is empirically estimated from the observed inflow-outflow data for a channel reach. The predicted outflow hydrographs match better with the observed than the outflow hydrographs generated through the lumped regression model for ephemeral channels. The hydrologic-flow-routing technique may also be used for ungaged channel reaches through parameterization.|
|Appears in Collections:||Article|
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