Marine Hydrokinetic Energy in the Gulf Stream Off North Carolina: An Assessment Using Observations and Ocean Circulation Models

Lowcher, C.; Muglia, Mike; Bane, John M.; He, Ruoying; Gong, Ying; Haines, Sara

doi:10.1007/978-3-319-53536-4_10

Cited by 4 publications

(3 citation statements)

References 19 publications

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“…Q16: Please cite this reference (Lowcher et al, 2017) in the text or confirm if it should be deleted.…”

Section: Discussionmentioning

confidence: 99%

Gulf Stream Marine Hydrokinetic Energy Off Cape Hatteras, North Carolina

Muglia¹,

Seim²,

Taylor³

2020

mar technol soc j

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Multi-year measurements of current velocity, salinity, and temperature from fixed and vessel-mounted sensors quantify Gulf Stream (GS) marine hydrokinetic energy (MHK) resource variability and inform development off Cape Hatteras, NC. Vessel transects across the GS demonstrate a jet-like velocity structure with speeds exceeding 2.5 m/s at the surface, persistent horizontal shear throughout the jet, and strongest vertical shears within the cyclonic shear zone. Persistent equatorward flow at the base of the GS associated with the Deep Western Boundary Current (DWBC) produces a local maximum in vertical shear where stratification is weak and is postulated to be a site of strong turbulent mixing. Repeated transects at the same location demonstrate that the velocity structure depends upon whether the GS abuts the shelf slope or is offshore.Currents from a fixed acoustic Doppler current profiler (ADCP) deployed on the shoreward side of the GS exceed 1 m/s 64% of the time 40 m below the surface. The 3.75-year time series of currents from the ADCP mooring document large, roughly weekly variations in downstream and cross-stream speed (−0.5 to 2.5 m/s) and shear (± 0.05 s−1) over the entire water column due to passage of GS meanders and frontal eddies. Current reversals from the mean GS direction occur several times a month, and longer period variations in GS offshore position can result in reduced currents for weeks at a time. Unresolved small-scale shear is postulated to contribute significantly to turbulent mixing.

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“…Q16: Please cite this reference (Lowcher et al, 2017) in the text or confirm if it should be deleted.…”

Section: Discussionmentioning

confidence: 99%

Gulf Stream Marine Hydrokinetic Energy Off Cape Hatteras, North Carolina

Muglia¹,

Seim²,

Taylor³

2020

mar technol soc j

Self Cite

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“…Several recent works have begun to investigate and explore the processes and challenges to energy extraction in the Gulf Stream. This includes modeling studies that account for energy extraction by arrays of turbines in the Florida Current (Haas et al 2017) as well as detailed modeling and measurement efforts offshore of North Carolina (Lowcher et al 2017;Muglia, Seim, and Taylor 2020;Bane et al 2017). We believe the next step would be to take a more coordinated and comprehensive approach to answering these questions.…”

Section: Ocean Current Energy: Challenges and Future Workmentioning

confidence: 99%

Marine Energy in the United States: An Overview of Opportunities

Kilcher

Fogarty

Lawson

2021

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“…The ocean current power can be calculated as the amount of marine-hydrokinetic energy that flows through a unit cross-sectional area oriented perpendicular to the current direction per unit time [30] expressed as follows:…”

Section: Ocean Current and Thermal Gradient Energymentioning

confidence: 99%

Ocean Renewable Energy Potential, Technology, and Deployments: A Case Study of Brazil

Shadman

Silva

Faller³

et al. 2019

Energies

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This study, firstly, provides an up-to-date global review of the potential, technologies, prototypes, installed capacities, and projects related to ocean renewable energy including wave, tidal, and thermal, and salinity gradient sources. Secondly, as a case study, we present a preliminary assessment of the wave, ocean current, and thermal gradient sources along the Brazilian coastline. The global status of the technological maturity of the projects, their different stages of development, and the current global installed capacity for different sources indicate the most promising technologies considering the trend of global interest. In Brazil, despite the extensive coastline and the fact that almost 82% of the Brazilian electricity matrix is renewable, ocean renewable energy resources are still unexplored. The results, using oceanographic fields produced by numerical models, show the significant potential of ocean thermal and wave energy sources in the northern and southern regions of the Brazilian coast, which could contribute as complementary supply sources in the national electricity matrix.

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Marine Hydrokinetic Energy in the Gulf Stream Off North Carolina: An Assessment Using Observations and Ocean Circulation Models

Cited by 4 publications

References 19 publications

Gulf Stream Marine Hydrokinetic Energy Off Cape Hatteras, North Carolina

Gulf Stream Marine Hydrokinetic Energy Off Cape Hatteras, North Carolina

Marine Energy in the United States: An Overview of Opportunities

Ocean Renewable Energy Potential, Technology, and Deployments: A Case Study of Brazil

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