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The Relationship Of Streambank Angles And Shapes To Streambank Erosion Rates In The Little River Watershed Tn
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Book Synopsis The Relationship of Streambank Angles and Shapes to Streambank Erosion Rates in the Little River Watershed, TN by : William Ryan Foster
Download or read book The Relationship of Streambank Angles and Shapes to Streambank Erosion Rates in the Little River Watershed, TN written by William Ryan Foster and published by . This book was released on 2010 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Southeastern Geographer by : David M. Cochran Jr.
Download or read book Southeastern Geographer written by David M. Cochran Jr. and published by UNC Press Books. This book was released on 2013-09-01 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: Table of Contents for Volume 53, Number 3 (Fall 2013) COVER ART The View from Huayna Picchu Carl A. Reese Introduction to Southeastern Geographer, Volume 53, Number 3 David M. Cochran and Carl A. Reese PART I: PAPERS High Temporal Resolution Land Use/ Land Cover Change from 1984 to 2010 of the Little River Watershed, Tennessee, Investigated Using Landsat and Google Earth Images Chunhao Zhu and Yingkui Li Look Away, Look Away, Look Away to Lexington: Struggles over Neo-Confederate Nationalism, Memory, and Masculinity in a Small Virginia Town Jon D. Bohland Web-Based Geospatial Technology Tools for Metropolitan Planning Organizations Rakesh Malhotra, Gurmeet Virk, Felix Nwoko, and Amanda Klepper Spatial and Temporal Patterns of an Ethnic Economy in a Suburban Landscape of the Nuevo South Nancy Hoalst-Pullen, Vanessa Slinger-Friedman, Harold R. Trendell, and Mark W. Patterson Toward a Publicly Engaged Geography: Polycentric and Iterated Research Jennifer F. Brewer PART II: REVIEWS Longleaf, Far as the Eye Can See: A New Vision of North America's Richest Forest Bill Finch, Beth Maynor Young, Rhett Johnson, and John C. Hall Reviewed by Grant L. Harley The Land Was Ours: African American Beaches from Jim Crow to the Sunbelt South Andrew W. Kahrl Reviewed by Heather Ward
Book Synopsis Quantifying Stream Bank Erosion and Deposition Rates in a Central U.S. Urban Watershed by : Dandan Huang
Download or read book Quantifying Stream Bank Erosion and Deposition Rates in a Central U.S. Urban Watershed written by Dandan Huang and published by . This book was released on 2012 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: Stream bank stability is gaining increasing attention in part because stream bank erosion can contribute as much as 80% of suspended sediment to streams, particularly in urbanizing watersheds. Stream bank erosion study sites were located in a lower reach of the Hinkson Creek Watershed located in Boone County, Missouri, USA. Streambank erosion and deposition rates were quantified using the erosion pin method comparing a remnant Bottomland Hardwood Forest (BHF) streambank to an Agricultural (Ag) streambank (922 m apart). Ten erosion pin plots (n = 342 pins) were installed that spanned the range of bank geometric and vegetation cover variability. Results indicated that during a drier (762 mm) than average (10yr avg=1077 mm) rainfall year 15.6 and 177.7 tonnes of soil erosion occurred on the right stream bank alone of the BHF and Ag sites respectively (Water Year 2011). Average erosion depth of the BHF and Ag was 18 and 112 mm/yr respectively. The greatest average depth of erosion occurred during the winter season (44.7 mm), followed by summer (13.1 mm) and spring (6.3 mm), fall had the lowest average erosion rate (1.1 mm). The stream bank erosion contributed approximately 67% of channel suspended sediment loading over WY 2011.Results hold important implications for land-use and land managers wishing to improve land-use practices, water quality and natural resource sustainability in dynamic urbanizing watersheds.
Book Synopsis Final Report to Congress by : United States. Army. Corps of Engineers
Download or read book Final Report to Congress written by United States. Army. Corps of Engineers and published by . This book was released on 1981 with total page 314 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Final Report to Congress by : United States. Army. Corps of Engineers
Download or read book Final Report to Congress written by United States. Army. Corps of Engineers and published by . This book was released on 1981 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation and Application of the Bank Assessment for Non-Point Source Consequences of Sediment (BANCS) Model Developed to Predict Annual Streambank Erosion Rates by : Kari A. Bigham
Download or read book Evaluation and Application of the Bank Assessment for Non-Point Source Consequences of Sediment (BANCS) Model Developed to Predict Annual Streambank Erosion Rates written by Kari A. Bigham and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Excess sediment is a leading cause of stream impairment in the United States, resulting in poor water quality, sedimentation of downstream waterbodies, and damage to aquatic ecosystems. Numerous case studies have found that accelerated bank erosion can be the main contributor of sediment in impaired streams. An empirically-derived "Bank Assessment for Non-Point Source Consequences of Sediment" (BANCS) model can be developed for a specific hydrophysiographic region to rapidly estimate sediment yield from streambank erosion, based on both physical and observational measurements of a streambank. This study aims to address model criticisms by (1) evaluating the model repeatability and sensitivity and (2) examining the developmental process of a BANCS model by attempting to create an annual streambank erosion rate prediction curve for the Central Great Plains ecoregion. To conduct the repeatability and sensitivity analysis of the BANCS model, ten stream professionals with experience utilizing the model individually evaluated the same six streambanks twice in the summer of 2015. To determine the model repeatability, individual streambank evaluations, as well as groups of evaluations based on level of Rosgen course training, were compared utilizing Kendall coefficient of concordance and a linear model with a randomized complete block design. Additionally, a one-at-a-time design approach was implemented to test sensitivity of model inputs. Statistical analysis of individual streambank evaluations suggests that the implementation of the BANCS model may not be repeatable. This may be due to highly sensitive model inputs, such as streambank height and near-bank stress method selection, and/or highly uncertain model inputs, such as bank material. Furthermore, it was found that higher level of training may improve model implementation precision. In addition to the repeatability and sensitivity analysis, the BANCS model developmental process was examined through the creation of a provisional streambank erosion rate prediction curve for the Central Great Plains ecoregion. Streambank erosion data was collected sporadically from 2006 to 2016 from eighteen study banks within the sediment-impaired Little Arkansas River watershed of south-central Kansas. Model fit was observed to follow the same trends, but with greater dispersion, when compared to other created models throughout the United States and eastern India. This increase in variability could be due to (1) obtaining streambank erosion data sporadically over a 10-year period with variable streamflows, (2) BEHI/NBS ratings obtained only once in recent years, masking the spatiotemporal variability of streambank erosion, (3) lack of observations, and (4) use of both bank profiles and bank pin measurements to calculate average retreat rates. Based on the results of this study, a detailed model creation procedure was suggested that addresses several model limitations and criticisms. Recommendations provided in the methodology include (1) more accurate measurement of sensitive/uncertain BEHI/NBS parameters, (2) multiple assessments by trained professionals to obtain accurate and precise BEHI/NBS ratings, (3) the use of repeated bank profiles to calculate bank erosion rates, and (4) the development of flow-dependent curves based on annually assessed study banks. Subsequent studies should incorporate these findings to improve upon the suggested methodology and increase the predictive power of future BANCS models.
Download or read book Final Report to Congress written by and published by . This book was released on 1981 with total page 204 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Final Report to Congress, The Streambank Erosion Control Evaluation and Demonstration Act of 1974, Section 32, Public Law 93-251 by : United States. Army. Corps of Engineers
Download or read book Final Report to Congress, The Streambank Erosion Control Evaluation and Demonstration Act of 1974, Section 32, Public Law 93-251 written by United States. Army. Corps of Engineers and published by . This book was released on 1981 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Effects of Bank Stabilization on the Physical and Chemical Characteristics of Streams and Small Rivers: An annotated bibliography by : Daniel H. Stern
Download or read book Effects of Bank Stabilization on the Physical and Chemical Characteristics of Streams and Small Rivers: An annotated bibliography written by Daniel H. Stern and published by . This book was released on 1980 with total page 92 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Estimating Streambank Erosion Using GPS-based Watershed-scale Video Mapping and USEPA BANCS for the Development of Sediment TMDLs by : Kelsey Jo Hensley
Download or read book Estimating Streambank Erosion Using GPS-based Watershed-scale Video Mapping and USEPA BANCS for the Development of Sediment TMDLs written by Kelsey Jo Hensley and published by . This book was released on 2014 with total page 141 pages. Available in PDF, EPUB and Kindle. Book excerpt: According to the United States Environmental Protection Agency (USEPA), sediment is one of the most common water pollutants in the nation's rivers. Consequently, the identification of streambank locations with high erosion potential is important in reducing sediment input via management and monitoring practices. Furthermore, the estimation of erosion rates and sediment loads can assist in the development of Total Maximum Daily Loads (TMDLs). The objective of this study was to integrate two USEPA-recommended approaches with the Streambank Video Mapping System (SVMS) in order to predict site-specific Total Daily Sediment Loads (TDSLs) and calculate sediment TMDLs for streambank erosion over several river kilometers. The SVMS, a GPS-based watershed-scale data collection method, was incorporated with the USEPA-approved Bank Assessment for Non-point source Consequences of Sediment (BANCS) model to evaluate streambank erodibility using the Bank Erosion Hazard Index (BEHI) and stream erosivity using Near Bank Stress (NBS). The SVMS was implemented to collect georeferenced video footage of streambank condition using three above water cameras mounted on a kayak. In addition, GPS and stream width were concurrently recorded. The video was ocularly evaluated using four parameters of a modified BEHI (mBEHI): bank angle, bank height to bankfull ratio, surface protection, and riparian diversity. The site-specific mBEHI scores and NBS scores were used along with the North Carolina Piedmont region erosion prediction curves to estimate annual Bank Erosion Rates (BERs). Additionally, USGS stream gage discharge data was utilized to estimate TDSLs. Sediment TMDLs for streambank erosion were calculated using TDSL estimates and the Maximum Daily Limit (MDL) equation, a statistically-based long-term average approach devised by the USEPA. This integrated methodology was implemented on a 22.5 kilometer section of the Driftwood River in Indiana and a 20.4 kilometer section of Upatoi Creek in Georgia. The Total Sediment Load (TSL) of Driftwood River was 222 t yr−1. km−1 [tonnes per year per kilometer] and the TMDL was 66 t d−1 [tonnes per day]. The TSL for Upatoi Creek was 109 t yr−1 km-1 and the TMDL was 24 t d−1
Book Synopsis Section 32 Program Streambank Erosion Control Evaluation and Demonstration Work Unit 2 by : Malcolm Price Keown
Download or read book Section 32 Program Streambank Erosion Control Evaluation and Demonstration Work Unit 2 written by Malcolm Price Keown and published by . This book was released on 1979 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Streambank Erosion Control on the Winooski River, Vermont by : Frank Custer Edminster
Download or read book Streambank Erosion Control on the Winooski River, Vermont written by Frank Custer Edminster and published by . This book was released on 1949 with total page 116 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Section 32 Program Streambank Erosion Control Evaluation and Demonstration Work Unit 4 by : Alston C. Spivey
Download or read book Section 32 Program Streambank Erosion Control Evaluation and Demonstration Work Unit 4 written by Alston C. Spivey and published by . This book was released on 1979 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tests were conducted at the U. S. Army Engineer Waterways Experiment Station (WES) on aluminum grids to determine the suitability of these materials as a potential bank protection system. Specifically, this test examined a grid/vegetation system in combination as a possible means for controlling bank erosion. The system was evaluated for effectiveness and durability in controlling erosion, ease of placement, and cost. It was envisioned that this system might be employed where something more durable than vegetation, but less durable than riprap, is believed necessary. The test area with the aluminum grid and rye grass growing in the areas surrounded by the hexagonal cells experienced very little or no erosion. The test area with rye grass (only) growing experienced some erosion, while the area adjacent to the test area experienced severe erosion.
Book Synopsis Streambank Erosion Problems and Possible Solutions by :
Download or read book Streambank Erosion Problems and Possible Solutions written by and published by . This book was released on 1978 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Evaluation and Development of Predictive Streambank Erosion Curves for Northeast Kansas Using Rosgen's "bancs" Methodology by : Christopher K. Sass
Download or read book Evaluation and Development of Predictive Streambank Erosion Curves for Northeast Kansas Using Rosgen's "bancs" Methodology written by Christopher K. Sass and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The original purpose of this investigation was to develop streambank erosion prediction curves for Northeast Kansas streams. Rosgen's (2001, 2006) methods were employed and eighteen study banks were measured and monitored over a four-year period, summer 2007 through summer 2010. At each study bank, a toe pin and two to three bank pins were set at a recorded longitudinal profile station of the stream. Vertical and horizontal measures from the toe pin to the bank face were taken each summer, 2007 as the baseline measure and 2008 - 2010 as bank change years. Bank profiles were overlaid to gain insight into bank area lost or gained due to erosional or depositional processes. A Bank Erosion Hazard Index (BEHI) and Near Bank Stress (NBS) combination rating was assessed and calculated for each study bank during the initial survey of 2007. The streambanks experienced varied erosion rates for similar BEHI/NBS combinations producing R2 values from 0.43 as the High/Very High BEHI rating and 0.80 as the Moderate BEHI rating. In addition, Moderate BEHI ratings provided higher erosion rates than the High/Very High BEHI rating and curves intersected at lower NBS ratings, suggesting a discrepancy in the fit of the model used in the Northeast Kansas region and conditions. In this light, modification of the BEHI model was evaluated and variables were assessed in the model for additional influence exerted in the Northeast Kansas region. Vegetation seemed to provide the most influence to bank resistance and was more closely evaluated. Banks with and without woody riparian vegetation were then plotted against BEHI and NBS values, as banks lacking woody vegetation eroded at higher rates. This study's findings can allow us to calibrate the BEHI model according to woody vegetation occurrence levels along streambanks in the Black Vermillion watershed. Modifications regarding vegetation occurrence of the BEHI model was completed and the results of these modifications generated R2 values of 0.78 for High/Very High BEHI and 0.82 for Moderate BEHI ratings. High/Very High ratings provided higher predicted erosion rates than Moderate ratings, while the curve slopes did not intersect at lower NBS ratings.
Book Synopsis Final Report to Congress by : United States. Army. Corps of Engineers
Download or read book Final Report to Congress written by United States. Army. Corps of Engineers and published by . This book was released on 1981 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Section 32 Program Streambank Erosion Control Evaluation and Demonstration Work Unit 4 - Research on Soil Stability and Identification of Causes of Streambank Erosion by : Clarence R. Styron
Download or read book Section 32 Program Streambank Erosion Control Evaluation and Demonstration Work Unit 4 - Research on Soil Stability and Identification of Causes of Streambank Erosion written by Clarence R. Styron and published by . This book was released on 1979 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
