Effects of water level fluctuation on thermal stratification in a typical tributary bay of Three Gorges Reservoir, China

Xiangxi River is a typical tributary of Three Gorges Reservoir (TGR) in China. Based on field observations in 2010, thermal stratification was significant in most months of the year. Through field data analysis and numerical simulations, the seasonal and spatial variation of thermal stratification a...

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Main Authors: Juxiang Jin, Scott A. Wells, Defu Liu, Guolu Yang, Senlin Zhu, Jun Ma, Zhengjian Yang
Format: Article
Language:English
Published: PeerJ Inc. 2019-05-01
Series:PeerJ
Subjects:
Online Access:https://peerj.com/articles/6925.pdf
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author Juxiang Jin
Scott A. Wells
Defu Liu
Guolu Yang
Senlin Zhu
Jun Ma
Zhengjian Yang
author_facet Juxiang Jin
Scott A. Wells
Defu Liu
Guolu Yang
Senlin Zhu
Jun Ma
Zhengjian Yang
author_sort Juxiang Jin
collection DOAJ
description Xiangxi River is a typical tributary of Three Gorges Reservoir (TGR) in China. Based on field observations in 2010, thermal stratification was significant in most months of the year. Through field data analysis and numerical simulations, the seasonal and spatial variation of thermal stratification as related to the impact of the operation of TGR were investigated. Thermal stratification was most pronounced from April to September in the Xiangxi River tributary. Air temperature (AT) and water level (WL) were the two dominant variables impacting thermal stratification. AT affected the surface water temperature promoting the formation of thermal stratification, and high WLs in TGR deepened the thermocline depth and thermocline bottom depth. These results provide a preliminary description of the seasonal variation and spatial distribution of thermal stratification, which is important for better understanding how thermal stratification affects algae blooms in Xiangxi River.
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spelling doaj.art-0e9c13e344d74c219ff0ba8fda6aaf8e2023-12-03T07:09:10ZengPeerJ Inc.PeerJ2167-83592019-05-017e692510.7717/peerj.6925Effects of water level fluctuation on thermal stratification in a typical tributary bay of Three Gorges Reservoir, ChinaJuxiang Jin0Scott A. Wells1Defu Liu2Guolu Yang3Senlin Zhu4Jun Ma5Zhengjian Yang6School of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, Hubei, ChinaDepartment of Civil and Environmental Engineering, Portland State University, Portland, OR, USAHubei Key Laboratory of Ecological Restoration of River-Lakes and Algal Utilization, Hubei University of Technology, Wuhan, Hubei, ChinaSchool of Water Resources and Hydropower Engineering, Wuhan University, Wuhan, Hubei, ChinaState Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing, ChinaHubei Key Laboratory of Ecological Restoration of River-Lakes and Algal Utilization, Hubei University of Technology, Wuhan, Hubei, ChinaHubei Key Laboratory of Ecological Restoration of River-Lakes and Algal Utilization, Hubei University of Technology, Wuhan, Hubei, ChinaXiangxi River is a typical tributary of Three Gorges Reservoir (TGR) in China. Based on field observations in 2010, thermal stratification was significant in most months of the year. Through field data analysis and numerical simulations, the seasonal and spatial variation of thermal stratification as related to the impact of the operation of TGR were investigated. Thermal stratification was most pronounced from April to September in the Xiangxi River tributary. Air temperature (AT) and water level (WL) were the two dominant variables impacting thermal stratification. AT affected the surface water temperature promoting the formation of thermal stratification, and high WLs in TGR deepened the thermocline depth and thermocline bottom depth. These results provide a preliminary description of the seasonal variation and spatial distribution of thermal stratification, which is important for better understanding how thermal stratification affects algae blooms in Xiangxi River.https://peerj.com/articles/6925.pdfThermal stratificationCE-QUAL-W2Three Gorges ReservoirXiangxi RiverWater level fluctuation
spellingShingle Juxiang Jin
Scott A. Wells
Defu Liu
Guolu Yang
Senlin Zhu
Jun Ma
Zhengjian Yang
Effects of water level fluctuation on thermal stratification in a typical tributary bay of Three Gorges Reservoir, China
PeerJ
Thermal stratification
CE-QUAL-W2
Three Gorges Reservoir
Xiangxi River
Water level fluctuation
title Effects of water level fluctuation on thermal stratification in a typical tributary bay of Three Gorges Reservoir, China
title_full Effects of water level fluctuation on thermal stratification in a typical tributary bay of Three Gorges Reservoir, China
title_fullStr Effects of water level fluctuation on thermal stratification in a typical tributary bay of Three Gorges Reservoir, China
title_full_unstemmed Effects of water level fluctuation on thermal stratification in a typical tributary bay of Three Gorges Reservoir, China
title_short Effects of water level fluctuation on thermal stratification in a typical tributary bay of Three Gorges Reservoir, China
title_sort effects of water level fluctuation on thermal stratification in a typical tributary bay of three gorges reservoir china
topic Thermal stratification
CE-QUAL-W2
Three Gorges Reservoir
Xiangxi River
Water level fluctuation
url https://peerj.com/articles/6925.pdf
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