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Frontiers of Environmental Science & Engineering

ISSN 2095-2201

ISSN 2095-221X(Online)

CN 10-1013/X

Postal Subscription Code 80-973

2018 Impact Factor: 3.883

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Front Envir Sci Eng    0, Vol. Issue () : 211-218    https://doi.org/10.1007/s11783-012-0464-1
RESEARCH ARTICLE
Modeling effects of a tidal barrage on water quality indicator distribution in the Severn Estuary
Guanghai GAO1(), Roger A. FALCONER2, Binliang LIN2,3
1. Key Laboratory of Pollution Processes and Environmental Criteria (Ministry of Education), Tianjin key Laboratory of Environmental Remediation and Pollution Control, College of Environmental Science and Engineering, Nankai University, Tianjin 300071, China; 2. Cardiff School of Engineering, Cardiff University, The Parade, Cardiff CF24 3AA, UK; 3. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
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Abstract

In this study, emphasis has focused on assessing the potential hydro-environmental impacts of a barrage across the Severn Estuary, with a numerical model being developed and applied to the estuary to assess the impacts of proposed Severn Barrage on the hydrodynamic, sediment transport and faecal indicator organism distribution within the estuary. The results show that the Severn Barrage has the potential to reduce the tidal currents in a highly dynamic estuary. This leads to the reduction of suspended sediment concentrations, which in turn affects the bacterial transport processes which is highly related to the sediment transport processes.
Keywords water quality indicator      Severn Estuary      numerical model      tidal energy     
Corresponding Author(s): GAO Guanghai,Email:gaogh@nankai.edu.cn   
Issue Date: 01 April 2013
 Cite this article:   
Guanghai GAO,Binliang LIN,Roger A. FALCONER. Modeling effects of a tidal barrage on water quality indicator distribution in the Severn Estuary[J]. Front Envir Sci Eng, 0, (): 211-218.
 URL:  
https://academic.hep.com.cn/fese/EN/10.1007/s11783-012-0464-1
https://academic.hep.com.cn/fese/EN/Y0/V/I/211
Fig.1  Location of the Severn Estuary and calibration sites
Fig.2  Proposed Cardiff-Weston barrage site (Severn Tidal Power Group)
Fig.3  Layout of Cardiff-Weston barrage (Severn Tidal Power Group)
Fig.4  Comparison of (a) current speeds and (b) directions at Site M for spring tide
Fig.5  Suspended sediment concentrations at Trecco Bay
Fig.6  Enterococci concentration comparisons at Trecco Bay at (a) spring tide and (b) neap tide
Fig.7  Currents at mean flood tide both (a) without and (b) with the barrage
Fig.8  Non-cohesive sediment concentrations at mean flood tide both (a) without and (b) with the barrage
Fig.9  Cohesive sediment concentrations at mean flood tide both (a) without and (b) with the barrage
Fig.10  Enterococci concentrations at mean flood tide both (a)without and (b)with the sediment-bacteria interactions
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