IAHR, founded in 1935, is a worldwide independent member-based organisation of engineers and water specialists working in fields related to the hydro-environmental sciences and their practical application. Activities range from river and maritime hydraulics to water resources development and eco-hydraulics, through to ice engineering, hydroinformatics, and hydraulic machinery.
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You are here : eLibrary : IAHR World Congress Proceedings : 35th IAHR Congress - Chengdu (2013) : THEME 3 - WATER ENGINEERING AND CIVILIZATION : Impact of Different Marine Renewable Energy Scheme Operating Modes on the Eutrophication Potential o...
Impact of Different Marine Renewable Energy Scheme Operating Modes on the Eutrophication Potential of the Severn Estuary
Author : Margaret Kadiri, Reza Ahmadian, David Kay and Roger Falconer
The potential impacts of two different modes of operation of a tidal barrage (i.e. ebb-only and flood-ebb operating modes) on the eutrophication potential of the Severn Estuary were assessed in this study using a simple modelling approach adopted by the UK?s Comprehensive Studies Task Team ( CSTT). The model predictions were compared against CSTT thresholds for assessing eutrophication in estuaries and coastal waters. The estuary was found to be potentially eutrophic under no barrage conditions as well as under the ebb-only and the flood-ebb operating modes. Potential maximum primary production was found to be significantly higher under the ebb-only and the flood-ebb operating modes compared to the no barrage condition. This is believed to be a direct consequence of increased water residence time and greater light availability behind the barrage. However, the conditions for phytoplankton growth are likely to be more favorable under ebb-only operating mode as the potential maximum primary production was found to be significantly greater under ebb-only operating mode with largely decreased turbidity compared to flood-ebb operating mode with only a small reduction in turbidity.
File Size : 161,201 bytes
File Type : Adobe Acrobat Document
Chapter : IAHR World Congress Proceedings
Category : 35th IAHR Congress - Chengdu (2013)
Article : THEME 3 - WATER ENGINEERING AND CIVILIZATION
Date Published : 18/07/2016
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