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Experimental Study of Delta Erosion Due to Dam Removal
Authors: Alessandro Cantelli, Chris Paola, Gary Parker
Cantelli, A., Paola, C. and Parker, G., 2004, Experiments on upstream-migrating erosional narrowing and widening of an incisional channel caused by dam removal, Water Resources Research, 40, W03304, doi:10.1029/2003/WR002940 The present paper reports on a laboratory investigation of the erosion of a deltaic front induced by the removal of a dam. We built a laboratory model of a dam, and observed both the sedimentation in the reservoir due to the downstream propagation of a delta front and the erosion of the delta front during dam removal, including measurement of channel morphology and flow field. Based on an analysis of bank erosion two principal erosive trends were detected: during the initial stage of erosion the width of each section quickly decreased to a minimum value, after which the section widened. Undistorted Froude similitude is used to scale the results up to field dimensions.
Add Dataset to Cart158.11 GB
Authors: Jeff Marr, Peter Willcock
StreamLab06 was a multiphase research endeavor involving academic researchers, federal agencies and stream restoration practitioners. This ongoing project is being conducted in the Main Channel at the St. Anthony Falls Laboratory in Minneapolis, MN. The StreamLab program brings together a spectrum of research expertise (stream ecology and biology, engineering, hydrology, hydraulics and geomorphology) to conduct focused studies on a laboratory controlled, field scale, indoor stream environment.
The first phase of the StreamLab06 project was completed in late March, 2006, and was focused on testing several existing and one new technology for sampling bedload transport. Technologies were tested in separate sets of sand and gravel trials.
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Stream Restoration Toolbox
Authors: Alessandro Cantelli, Wesley Lauer, Jeff Marr, Brandon McElroy, Gary Parker
The Stream Restoration Toolbox consists of current basic research cast into the form of tools that can be used by practitioners. The toolbox contains models, code, websites, and small applications that are useful for applied stream restoration Tools are free to download and use. The Toolbox is not limited to NCED but is open to all contributors. Tools are listed in alphabetical order.
Tool title: Bank Stabilization Diagnosis
Tool purpose: Determination as to whether or not bank stabilization should be a part of a river restoration scheme
Primary tool author: J. Wesley Lauer
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