Articles | Volume 13, issue 8
Biogeosciences, 13, 2593–2609, 2016
https://doi.org/10.5194/bg-13-2593-2016
Biogeosciences, 13, 2593–2609, 2016
https://doi.org/10.5194/bg-13-2593-2016

Research article 02 May 2016

Research article | 02 May 2016

Potential environmental impact of tidal energy extraction in the Pentland Firth at large spatial scales: results of a biogeochemical model

Johan van der Molen et al.

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The potential large-scale (> 100 km) effects of marine renewable tidal energy generation in the Pentland Firth were studied using a 3-D hydrodynamics–biogeochemistry model. A realistic 800 MW scenario suggested minor effects on tides and biogeochemistry. A massive-expansion 8 GW scenario suggested effects over hundreds of kilometres away with changes of up to 10 % in tidal and ecosystem variables, the latter through clearer waters and increased primary production with associated increases in fauna.
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