On the Sediment Dynamics in a Tidally Energetic Channel: The Inner Sound, Northern Scotland
Sediment banks within a fast-flowing tidal channel, the Inner Sound in the Pentland Firth, were mapped using multi-frequency side-scan sonar. This novel technique provides a new tool for seabed sediment and benthic habitat mapping. The sonar data are supplemented by sediment grab and ROV videos. The...
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doaj-5af90c817dd140a0a20be270938554082021-04-02T03:31:10ZengMDPI AGJournal of Marine Science and Engineering2077-13122016-04-01423110.3390/jmse4020031jmse4020031On the Sediment Dynamics in a Tidally Energetic Channel: The Inner Sound, Northern ScotlandJason McIlvenny0Duncan Tamsett1Philip Gillibrand2Lonneke Goddijn-Murphy3Centre for Energy and the Environment, Environmental Research Institute, North Highland College UHI, Ormlie Road, Thurso KW14 7EE, UKCentre for Energy and the Environment, Environmental Research Institute, North Highland College UHI, Ormlie Road, Thurso KW14 7EE, UKCentre for Energy and the Environment, Environmental Research Institute, North Highland College UHI, Ormlie Road, Thurso KW14 7EE, UKCentre for Energy and the Environment, Environmental Research Institute, North Highland College UHI, Ormlie Road, Thurso KW14 7EE, UKSediment banks within a fast-flowing tidal channel, the Inner Sound in the Pentland Firth, were mapped using multi-frequency side-scan sonar. This novel technique provides a new tool for seabed sediment and benthic habitat mapping. The sonar data are supplemented by sediment grab and ROV videos. The combined data provide detailed maps of persistent sand and shell banks present in the Sound despite the high energy environment. Acoustic Doppler Current Profiler (ADCP) data and numerical model predictions were used to understand the hydrodynamics of the system. By combining the hydrodynamics and sediment distribution data, we explain the sediment dynamics in the area. Sediment particle shape and density, coupled with persistent features of the hydrodynamics, are the key factors in the distribution of sediment within the channel. Implications for tidal energy development planned for the Sound are discussed.http://www.mdpi.com/2077-1312/4/2/31sediment transporthydrodynamicssettling ratestidal energyPentland Firth |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Jason McIlvenny Duncan Tamsett Philip Gillibrand Lonneke Goddijn-Murphy |
spellingShingle |
Jason McIlvenny Duncan Tamsett Philip Gillibrand Lonneke Goddijn-Murphy On the Sediment Dynamics in a Tidally Energetic Channel: The Inner Sound, Northern Scotland Journal of Marine Science and Engineering sediment transport hydrodynamics settling rates tidal energy Pentland Firth |
author_facet |
Jason McIlvenny Duncan Tamsett Philip Gillibrand Lonneke Goddijn-Murphy |
author_sort |
Jason McIlvenny |
title |
On the Sediment Dynamics in a Tidally Energetic Channel: The Inner Sound, Northern Scotland |
title_short |
On the Sediment Dynamics in a Tidally Energetic Channel: The Inner Sound, Northern Scotland |
title_full |
On the Sediment Dynamics in a Tidally Energetic Channel: The Inner Sound, Northern Scotland |
title_fullStr |
On the Sediment Dynamics in a Tidally Energetic Channel: The Inner Sound, Northern Scotland |
title_full_unstemmed |
On the Sediment Dynamics in a Tidally Energetic Channel: The Inner Sound, Northern Scotland |
title_sort |
on the sediment dynamics in a tidally energetic channel: the inner sound, northern scotland |
publisher |
MDPI AG |
series |
Journal of Marine Science and Engineering |
issn |
2077-1312 |
publishDate |
2016-04-01 |
description |
Sediment banks within a fast-flowing tidal channel, the Inner Sound in the Pentland Firth, were mapped using multi-frequency side-scan sonar. This novel technique provides a new tool for seabed sediment and benthic habitat mapping. The sonar data are supplemented by sediment grab and ROV videos. The combined data provide detailed maps of persistent sand and shell banks present in the Sound despite the high energy environment. Acoustic Doppler Current Profiler (ADCP) data and numerical model predictions were used to understand the hydrodynamics of the system. By combining the hydrodynamics and sediment distribution data, we explain the sediment dynamics in the area. Sediment particle shape and density, coupled with persistent features of the hydrodynamics, are the key factors in the distribution of sediment within the channel. Implications for tidal energy development planned for the Sound are discussed. |
topic |
sediment transport hydrodynamics settling rates tidal energy Pentland Firth |
url |
http://www.mdpi.com/2077-1312/4/2/31 |
work_keys_str_mv |
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