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The effects of a Severn Barrage on wave conditions in the Bristol Channel

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  • Fairley, I.
  • Ahmadian, R.
  • Falconer, R.A.
  • Willis, M.R.
  • Masters, I.

Abstract

The study investigates the impact that construction of a Severn Barrage in the Severn Estuary, on the west coast of the UK, might have on local wave conditions. Implementation of a barrage will impact on tidal currents and water elevations in the wider region. There is strong tidal modulation of wave conditions under the natural regime and therefore barrage-induced changes to tidal conditions could affect wave modulation in the region. This paper uses Swan, an open source 3rd generation spectral wave model, to investigate the possible impacts of construction of a barrage on tidal modulation of the wave conditions. It is found that current variations, rather than water level variations, are the dominant factor in tidal modulation of wave conditions. Barrage implementation does not substantially change the modulation of the wave period or direction. However, barrage implementation does affect the tidal modulation of wave heights in the area of interest. The tidal modulation of the wave heights is generally reduced compared to the natural case; the peaks in the wave heights on an incoming tide are slightly lowered and there is lesser attenuation in wave heights on the outgoing tide. This modulation leads to net changes in the wave heights over one tidal cycle. For all of the tested wave conditions, this net change is small for the majority of the tested domain, namely to within ±5% of the no barrage case. There are some areas of greater change, most notably larger net increases in the wave heights near the North Somerset coast where the post-construction net wave height increase over a tidal cycle approach 20% of the pre-construction conditions. These changes do not impact coastal flooding because the wave height increase is not co-incident with high tide. Importantly, the maximum wave height is not increased and thus the likelihood of extreme events is not increased. The area of greatest reduction is between Swansea and Porthcawl. Changes over a neap tidal cycle show similar patterns of net change, but the modulation over the tidal cycle is different; primarily the magnitude of modulation is half that for the spring tide case and the shape is altered in some locations.

Suggested Citation

  • Fairley, I. & Ahmadian, R. & Falconer, R.A. & Willis, M.R. & Masters, I., 2014. "The effects of a Severn Barrage on wave conditions in the Bristol Channel," Renewable Energy, Elsevier, vol. 68(C), pages 428-442.
    • Handle: RePEc:eee:renene:v:68:y:2014:i:c:p:428-442
    DOI: 10.1016/j.renene.2014.02.023
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    1. Smith, Helen C.M. & Pearce, Charles & Millar, Dean L., 2012. "Further analysis of change in nearshore wave climate due to an offshore wave farm: An enhanced case study for the Wave Hub site," Renewable Energy, Elsevier, vol. 40(1), pages 51-64.
    2. Neill, Simon P. & Jordan, James R. & Couch, Scott J., 2012. "Impact of tidal energy converter (TEC) arrays on the dynamics of headland sand banks," Renewable Energy, Elsevier, vol. 37(1), pages 387-397.
    3. Xia, Junqiang & Falconer, Roger A. & Lin, Binliang, 2010. "Impact of different operating modes for a Severn Barrage on the tidal power and flood inundation in the Severn Estuary, UK," Applied Energy, Elsevier, vol. 87(7), pages 2374-2391, July.
    4. Xia, Junqiang & Falconer, Roger A. & Lin, Binliang, 2010. "Hydrodynamic impact of a tidal barrage in the Severn Estuary, UK," Renewable Energy, Elsevier, vol. 35(7), pages 1455-1468.
    5. Neill, Simon P. & Litt, Emmer J. & Couch, Scott J. & Davies, Alan G., 2009. "The impact of tidal stream turbines on large-scale sediment dynamics," Renewable Energy, Elsevier, vol. 34(12), pages 2803-2812.
    6. Ahmadian, Reza & Falconer, Roger A., 2012. "Assessment of array shape of tidal stream turbines on hydro-environmental impacts and power output," Renewable Energy, Elsevier, vol. 44(C), pages 318-327.
    7. Xia, Junqiang & Falconer, Roger A. & Lin, Binliang & Tan, Guangming, 2012. "Estimation of annual energy output from a tidal barrage using two different methods," Applied Energy, Elsevier, vol. 93(C), pages 327-336.
    8. Rusu, Liliana & Guedes Soares, C., 2012. "Wave energy assessments in the Azores islands," Renewable Energy, Elsevier, vol. 45(C), pages 183-196.
    9. Iglesias, G. & López, M. & Carballo, R. & Castro, A. & Fraguela, J.A. & Frigaard, P., 2009. "Wave energy potential in Galicia (NW Spain)," Renewable Energy, Elsevier, vol. 34(11), pages 2323-2333.
    10. Iglesias, G. & Carballo, R., 2010. "Offshore and inshore wave energy assessment: Asturias (N Spain)," Energy, Elsevier, vol. 35(5), pages 1964-1972.
    11. Fairley, Iain & Evans, Paul & Wooldridge, Chris & Willis, Miles & Masters, Ian, 2013. "Evaluation of tidal stream resource in a potential array area via direct measurements," Renewable Energy, Elsevier, vol. 57(C), pages 70-78.
    12. Ahmadian, Reza & Falconer, Roger & Bockelmann-Evans, Bettina, 2012. "Far-field modelling of the hydro-environmental impact of tidal stream turbines," Renewable Energy, Elsevier, vol. 38(1), pages 107-116.
    13. Charlier, Roger H., 2007. "Forty candles for the Rance River TPP tides provide renewable and sustainable power generation," Renewable and Sustainable Energy Reviews, Elsevier, vol. 11(9), pages 2032-2057, December.
    14. O Rourke, Fergal & Boyle, Fergal & Reynolds, Anthony, 2010. "Tidal energy update 2009," Applied Energy, Elsevier, vol. 87(2), pages 398-409, February.
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    4. Fairley, I. & Smith, H.C.M. & Robertson, B. & Abusara, M. & Masters, I., 2017. "Spatio-temporal variation in wave power and implications for electricity supply," Renewable Energy, Elsevier, vol. 114(PA), pages 154-165.
    5. Lewis, M.J. & Angeloudis, A. & Robins, P.E. & Evans, P.S. & Neill, S.P., 2017. "Influence of storm surge on tidal range energy," Energy, Elsevier, vol. 122(C), pages 25-36.
    6. Jingjing Xue & Reza Ahmadian & Roger A. Falconer, 2019. "Optimising the Operation of Tidal Range Schemes," Energies, MDPI, vol. 12(15), pages 1-23, July.
    7. Lisboa, A.C. & Vieira, T.L. & Guedes, L.S.M. & Vieira, D.A.G. & Saldanha, R.R., 2017. "Optimal analytic dispatch for tidal energy generation," Renewable Energy, Elsevier, vol. 108(C), pages 371-379.
    8. Angeloudis, Athanasios & Ahmadian, Reza & Falconer, Roger A. & Bockelmann-Evans, Bettina, 2016. "Numerical model simulations for optimisation of tidal lagoon schemes," Applied Energy, Elsevier, vol. 165(C), pages 522-536.
    9. Guillou, Nicolas & Chapalain, Georges, 2015. "Numerical modelling of nearshore wave energy resource in the Sea of Iroise," Renewable Energy, Elsevier, vol. 83(C), pages 942-953.
    10. Fairley, I. & Karunarathna, H. & Masters, I., 2018. "The influence of waves on morphodynamic impacts of energy extraction at a tidal stream turbine site in the Pentland Firth," Renewable Energy, Elsevier, vol. 125(C), pages 630-647.
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