Bank erosion of legacy sediment at the transition from vertical to lateral stream incision

2015 ◽  
Vol 40 (13) ◽  
pp. 1764-1778 ◽  
Author(s):  
Nathan J. Lyons ◽  
Michael J. Starek ◽  
Karl W. Wegmann ◽  
Helena Mitasova
Keyword(s):  
Bank Erosion ◽  
Stream Incision ◽  
Legacy Sediment

Effects of legacy sediment removal and effects on nutrients and sediment in Big Spring Run, Lancaster County, Pennsylvania, 2009–15

2020 ◽  
Author(s):  
Michael J. Langland ◽  
Joseph W. Duris ◽  
Tammy M. Zimmerman ◽  
Jeffrey J. Chaplin
Keyword(s):  
Lancaster County ◽  
Sediment Removal ◽  
Legacy Sediment

Bank Erosion Algorithm for Numerical Modelling of Channel Width Adjustments

1994 ◽  
Author(s):  
Stephen E. Darby ◽  
Colin R. Thorne
Keyword(s):  
Numerical Modelling ◽  
Bank Erosion ◽  
Channel Width

3D NUMERICAL SIMULATION OF ALTERNATE BAR FORMATION AND RIVER CHANNEL PROCESS WITH BANK EROSION

2018 ◽  
Vol 74 (5) ◽  
pp. I_991-I_996
Author(s):  
Shinichiro ONDA ◽  
Masaharu YASUBA ◽  
Takashi HOSODA
Keyword(s):  
Numerical Simulation ◽  
Bank Erosion ◽  
River Channel ◽  
3D Numerical Simulation ◽  
Channel Process ◽  
Bar Formation

QUANTIFYING BANK EROSION USING STRUCTURE FROM MOTION PHOTOGRAMMETRY

2017 ◽  
Author(s):  
Lucas A. Nibert ◽  
Keyword(s):  
Structure From Motion ◽  
Bank Erosion

scholarly journals A low-cost technique to measure bank erosion proces ses along middle-size river reaches

2018 ◽  
Author(s):  
Gonzalo Duró ◽  
Alessandra Crosato ◽  
Maarten G. Kleinhans ◽  
Wim S. J. Uijttewaal
Keyword(s):  
Laser Scanning ◽  
Spatial Scales ◽  
Low Cost ◽  
Bank Erosion ◽  
Water Levels ◽  
Small Scale ◽  
Observation Distance ◽  
River Bank ◽  
Erosion Processes ◽  
Rtk Gps

Abstract. Diverse methods are currently available to measure river bank erosion at broad-ranging temporal and spatial scales. Yet, no technique provides low-cost and high-resolution to survey small-scale bank processes along a river reach. We investigate the capabilities of Structure-from-Motion photogrammetry applied with imagery from an Unmanned Aerial Vehicle (UAV) to describe the evolution of riverbank profiles in middle-size rivers. The bank erosion cycle is used as a reference to assess the applicability of different techniques. We surveyed 1.2 km of a restored bank of the Meuse River eight times within a year, combining different photograph perspectives and overlaps to identify an efficient UAV flight to monitor banks. The accuracy of the Digital Surface Models (DSMs) was evaluated compared with RTK GPS points and an Airborne Laser Scanning (ALS) of the whole reach. An oblique perspective with eight photo overlaps was sufficient to achieve the highest relative precision to observation distance of ~1:1400, with 10 cm error range. A complementary nadiral view increased coverage behind bank toe vegetation. The DSM and ALS had comparable accuracies except on banks, where the latter overestimates elevations. Sequential DSMs captured signatures of the erosion cycle such as mass failures, slump-block deposition, and bank undermining. Although this technique requires low water levels and banks without dense vegetation, it is a low-cost method to survey reach-scale riverbanks in sufficient resolution to quantify bank retreat and identify morphological features of the bank failure and erosion processes.

Recovery of Degraded Areas in Vale do Paraíba, São Paulo, Brazil: Performance Indicators

2010 ◽  
Vol 107 ◽  
pp. 27-34 ◽  
Author(s):  
Maria Regina de Aquino-Silva ◽  
Marcos Roberto Simão ◽  
Denise da Silva Santos ◽  
Eduardo Jorge de Brito Bastos
Keyword(s):  
Performance Indicators ◽  
Vegetation Structure ◽  
Bank Erosion ◽  
Sand Mining ◽  
Chemical Factor ◽  
Vegetation Development ◽  
Aluminum Iron ◽  
Negative Factors ◽  
Soil Indicators ◽  
Iron And Manganese

The aim of restoration is recompose a new vegetation structure in order to obtain benefits such as the containment of bank erosion, reestablishment of a hydric and nutrient regime, and increase the diversity of species. The present paper evaluated the development of the vegetation introduced as ciliar forest around a mining lagoon through establishing indicators based on the vegetation structure, physic-chemical characteristics of the soil and the water. Results show that the indicators of vegetation, like dying of species and the covering of top were classified as negative factors. Regarding vegetation development, it was considered positive when individuals out of inundation points were analyzed. According to soil indicators, chemical factor pH acid suggests intoxication by aluminum, iron and manganese impeding development of the vegetation in the local. Topographic factor also caused erosion and dying/extinction of species localized in declining points and carried nutrients to the inundation point and finally to the sand mining pool.

River bank erosion and channel evolution in sand-bed braided reach of River Chenab: role of floods during different flow regimes

2016 ◽  
Vol 9 (2) ◽  
Author(s):  
Muhammad Ashraf ◽  
Muhammad Tousif Bhatti ◽  
Abdul Sattar Shakir
Keyword(s):  
Bank Erosion ◽  
Flow Regimes ◽  
River Bank ◽  
Channel Evolution ◽  
River Bank Erosion ◽  
Braided Reach
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