Using Coupled Hydrodynamic Biogeochemical Models to Predict the Effects of Tidal Turbine Arrays on Phytoplankton Dynamics

Schuchert, Pia; Kregting, Louise; Pritchard, Daniel W.; Savidge, Graham; Elsäßer, Björn

doi:10.3390/jmse6020058

Cited by 14 publications

(11 citation statements)

References 38 publications

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“…Laboratory flume studies help understand wake recovery and turbulence due to tidal energy extraction (e.g., [71,72]), which can support the understanding of potential effects. Until large arrays are deployed and field measurements are collected, numerical models provide the greatest insight into the potential effects of MRE deployment on oceanographic systems, although relatively few modeling studies address environmental effects directly (e.g., [73][74][75]). However, model validation is needed through additional field data collection.…”

Section: Changes In Oceanographic Systems Associated With Mrementioning

confidence: 99%

Potential Environmental Effects of Marine Renewable Energy Development—The State of the Science

Copping

Hemery

Overhus

et al. 2020

JMSE

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Marine renewable energy (MRE) harnesses energy from the ocean and provides a low-carbon sustainable energy source for national grids and remote uses. The international MRE industry is in the early stages of development, focused largely on tidal and riverine turbines, and wave energy converters (WECs), to harness energy from tides, rivers, and waves, respectively. Although MRE supports climate change mitigation, there are concerns that MRE devices and systems could affect portions of the marine and river environments. The greatest concern for tidal and river turbines is the potential for animals to be injured or killed by collision with rotating blades. Other risks associated with MRE device operation include the potential for turbines and WECs to cause disruption from underwater noise emissions, generation of electromagnetic fields, changes in benthic and pelagic habitats, changes in oceanographic processes, and entanglement of large marine animals. The accumulated knowledge of interactions of MRE devices with animals and habitats to date is summarized here, along with a discussion of preferred management methods for encouraging MRE development in an environmentally responsible manner. As there are few devices in the water, understanding is gained largely from examining one to three MRE devices. This information indicates that there will be no significant effects on marine animals and habitats due to underwater noise from MRE devices or emissions of electromagnetic fields from cables, nor changes in benthic and pelagic habitats, or oceanographic systems. Ongoing research to understand potential collision risk of animals with turbine blades still shows significant uncertainty. There has been no significant field research undertaken on entanglement of large animals with mooring lines and cables associated with MRE devices.

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Section: Changes In Oceanographic Systems Associated With Mrementioning

confidence: 99%

Potential Environmental Effects of Marine Renewable Energy Development—The State of the Science

Copping

Hemery

Overhus

et al. 2020

JMSE

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“…In order to analyze the tide characteristics of Tianjin port, current data is monitored during the test period. We obtain the flow speed and flow direction during the test period by smoothing the current data which have been eliminated the large error and filtered [45][46][47][48]. Fig.…”

Section: Current Analysismentioning

confidence: 99%

An Innovative Multifunctional Buoy Design for Monitoring Continuous Environmental Dynamics at Tianjin Port

Hao

Zhang

2020

IEEE Access

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The Tianjin port plays a relevant role in driving both ship navigation and the weather and climate of the area. To better understand the underlying peculiarities of this area, several in-service coastal ocean system and facilities have been constructed, at present, the whole coastal ocean systems at Tianjin port have been improved, however, they cannot meet the safety requirements of traffic management and navigational safety. Marine buoys have the unreplaceable advantages of long-term, real-time, reliable capabilities and trivial environmental restrictions to monitor the marine dynamics. Here an innovative multifunctional buoy prototype is proposed to continuously measure meteorological and oceanographic parameters at a high spatial and temporal resolution, which can ensure navigation safety at Tianjin Port. Solar panels and battery module are personalized to ensure electric supply to the buoy system. An independent ARM (Advanced RISC Machine)-based module is affiliated to maintain the stability of the data acquisition and communication module. Buoy platform based on Beidou difference is proved to be an effective approach for the tide measurement. Additionally, a web-designed software for data acquisition is integrated for the visualization purpose. Finally, in-field recording test at Tianjin port will be performed to verify effectiveness of our system on monitoring environment dynamics. It turns out that our buoy prototype functions as a reliable and energy favorable electrical device and shed light on the development of effective measurement instruments working under unpredictable and harsh marine environment.

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“…Having its cut-in speed at only 1.2 m/s, it is capable of functioning in slower currents, while operating at depths between 60 and 120 m [14]. The potential impacts of the Deep Green on local marine ecosystems have already been studied [15,16], where it was found that phytoplankton dynamics and benthic communities were unlikely to be altered by its operation. A preliminary LCA was also done on Deep Green at an early planning stage [17].…”

Section: Introductionmentioning

confidence: 99%

Life Cycle Assessment of Electricity Generation from an Array of Subsea Tidal Kite Prototypes

2020

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Tidal current technologies have the potential to provide highly predictable energy, since tides are driven by lunar cycles. However, before implementing such technologies on a large scale, their environmental performance should be assessed. In this study, a prospective life cycle assessment (LCA) was performed on a 12 MW tidal energy converter array of Minesto Deep Green 500 (DG500) prototypes, closely following the Environmental Product Declaration (EPD) standards, but including scenarios to cover various design possibilities. The global warming potential (GWP) of the prototype array was in the range of 18.4–26.3 gCO2-eq/kWhe. This is comparable with other renewable energy systems, such as wind power. Material production processes have the largest impact, but are largely offset by recycling at the end of life. Operation and maintenance processes, including the production of replacement parts, also provide major contributions to environmental impacts. Comparisons with other technologies are limited by the lack of a standardized way of performing LCA on offshore power generation technologies.

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Using Coupled Hydrodynamic Biogeochemical Models to Predict the Effects of Tidal Turbine Arrays on Phytoplankton Dynamics

Cited by 14 publications

References 38 publications

Potential Environmental Effects of Marine Renewable Energy Development—The State of the Science

Potential Environmental Effects of Marine Renewable Energy Development—The State of the Science

An Innovative Multifunctional Buoy Design for Monitoring Continuous Environmental Dynamics at Tianjin Port

Life Cycle Assessment of Electricity Generation from an Array of Subsea Tidal Kite Prototypes

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