Please use this identifier to cite or link to this item: https://hdl.handle.net/11147/2276
Title: Influence of stratification and shoreline erosion on reservoir sedimentation patterns
Authors: Elçi, Şebnem
Work, Paul A.
Hayter, Earl J.
Elçi, Şebnem
Keywords: Reservoirs
Deposition
EFDC
Sedimentation
Shoreline erosion
Stratification
Issue Date: Mar-2007
Publisher: American Society of Civil Engineers (ASCE)
Source: Elçi, Ş., Work, P. A., and Hayter, E. J. (2007). Influence of stratification and shoreline erosion on reservoir sedimentation patterns. Journal of Hydraulic Engineering, 133(3), 255-266. doi:10.1061/(ASCE)0733-9429(2007)133:3(255)
Abstract: Sedimentation in the main pool of a deep (maximum depth: 50 m), 227 km2 hydropower reservoir was modeled using a three-dimensional numerical model of hydrodynamics and sedimentation for different wind, inflow, and outflow conditions. Short-term velocity measurements made in the reservoir were used to validate some aspects of the hydrodynamic model. The effects of thermal stratification on sedimentation patterns were investigated, since the reservoir is periodically strongly stratified. Stratification alters velocity profiles and thus affects sedimentation in the reservoir. Sedimentation of reservoirs is often modeled considering only the deposition of sediments delivered by tributaries. However, the sediments eroding from the shorelines can contribute significantly to sedimentation if the shorelines of the reservoir erode at sufficiently high rates or if sediment delivery via tributary inflow is small. Thus, shoreline erosion rates for a reservoir were quantified based on measured fetch, parameterized beach profile shape, and measured wind vectors, and the eroded sediments treated as a source within the sedimentation modeling scheme. The methodology for the prediction of shoreline erosion was calibrated and validated using digital aerial photos of the reservoir taken in different years and indicated approximately 1m/year of shoreline retreat for several locations. This study revealed likely zones of sediment deposition in a thermally stratified reservoir and presented a methodology for integration of shoreline erosion into sedimentation studies that can be used in any reservoir.
URI: http://doi.org/10.1061/(ASCE)0733-9429(2007)133:3(255)
http://hdl.handle.net/11147/2276
ISSN: 0733-9429
0733-9429
Appears in Collections:Civil Engineering / İnşaat Mühendisliği
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

Files in This Item:
File Description SizeFormat 
2276.pdfMakale812.13 kBAdobe PDFThumbnail
View/Open
Show full item record

CORE Recommender

SCOPUSTM   
Citations

15
checked on Oct 16, 2021

WEB OF SCIENCETM
Citations

13
checked on Apr 9, 2021

Page view(s)

36
checked on Oct 18, 2021

Download(s)

44
checked on Oct 18, 2021

Google ScholarTM

Check

Altmetric


Items in GCRIS Repository are protected by copyright, with all rights reserved, unless otherwise indicated.