Instantaneous‐Unit Sediment Graph
Publication: Journal of Hydraulic Engineering
Volume 120, Issue 4
Abstract
A model for an instantaneous‐unit sediment graph (IUSG), based on attenuation and translation functions of mobilized sediment has been developed and applied to a Chaukhutia watershed (452.25 km2) of the Ramganga reservoir catchment in Northern India. An IUSG is a sediment graph resulting from one cm of mobilized sediment generated uniformly over the basin area during the effective rainfall of infinitesimally small duration. The catchment representative IUSG was converted into a unit sediment graph and convolved with mobilized sediment for generation and prediction of sediment graphs. The predicted sediment graphs showed good agreement with their observed counterparts except for lower peak sediment‐flow rates. The changes in hydrologic regime of catchment due to adoption of conservation measures are mainly reflected by the attenuation of crest segments and peak sediment flow rates of IUSGs for the successive years 1976–77 through 1983–84.
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Information & Authors
Information
Published In
Journal of Hydraulic Engineering
Volume 120 • Issue 4 • April 1994
Pages: 495 - 503
Copyright
Copyright © 1994 American Society of Civil Engineers.
History
Received: Jun 30, 1992
Published online: Apr 1, 1994
Published in print: Apr 1994
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