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Spatial Stochastic and Analytical Approaches to Describe the Complex Hydraulic Variability Inherent Channel Geometry : Volume 8, Issue 4 (19/07/2011)

By Hadadin, N.

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Book Id: WPLBN0004012987
Format Type: PDF Article :
File Size: Pages 26
Reproduction Date: 2015

Title: Spatial Stochastic and Analytical Approaches to Describe the Complex Hydraulic Variability Inherent Channel Geometry : Volume 8, Issue 4 (19/07/2011)  
Author: Hadadin, N.
Volume: Vol. 8, Issue 4
Language: English
Subject: Science, Hydrology, Earth
Collections: Periodicals: Journal and Magazine Collection (Contemporary), Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

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Hadadin, N. (2011). Spatial Stochastic and Analytical Approaches to Describe the Complex Hydraulic Variability Inherent Channel Geometry : Volume 8, Issue 4 (19/07/2011). Retrieved from http://hawaiilibrary.net/


Description
Description: Associate Professor, Department of Civil Engineering, The Hashemite University, P.O. Box 150459, Zarqa 13115, Jordan. The effects of basin hydrology on channel hydraulic variability for incised streams were investigated using available field data sets and models of watershed hydrology and channel hydraulics for Yazoo River Basin, USA. The study presents the hydraulic relations of bankfull discharge, channel width, mean depth, cross- sectional area, longitudinal slope, unit stream power, and runoff production as a function of drainage area using simple linear regression. The hydraulic geometry relations were developed for sixty one streams, twenty of them are classified as channel evaluation model (CEM) Types IV and V and forty one of them are streams of CEM Types II and III. These relationships are invaluable to hydraulic and water resources engineers, hydrologists, and geomorphologists, involved in stream restoration and protection. These relations can be used to assist in field identification of bankfull stage and stream dimension in un-gauged watersheds as well as estimation of the comparative stability of a stream channel.

Results of this research show good fit of hydraulic geometry relationships in the Yazoo River Basin. The relations indicate that bankfull discharge, channel width, mean depth, cross-sectional area have stronger correlation to changes in drainage area than the longitudinal slope, unit stream power, and runoff production for streams CEM Types II and III. The hydraulic geometry relations show that runoff production, bankfull discharge, cross-sectional area, and unit stream power are much more responsive to changes in drainage area than are channel width, mean depth, and slope for streams of CEM Types IV and V. Also, the relations show that bankfull discharge and cross-sectional area are more responsive to changes in drainage area than are other hydraulic variables for streams of CEM Types II and III. The greater the regression slope, the more responsive to changes in drainage area will be.


Summary
Spatial stochastic and analytical approaches to describe the complex hydraulic variability inherent channel geometry

Excerpt
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