Observation-Based Resource Assessment of Gulf Stream MHK

Multi-year measurements of current velocity, salinity, and temperature from fixed and vessel-mounted sensors quantify Gulf Stream (GS) 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.

Data e Risorse

Campo Valore
accessLevel public
bureauCode {019:20}
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dataQuality true
identifier https://data.openei.org/submissions/4029
issued 2020-01-01T07:00:00Z
landingPage https://mhkdr.openei.org/submissions/347
license https://creativecommons.org/licenses/by/4.0/
modified 2021-01-14T15:57:32Z
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programCode {019:010,019:009}
projectLead Carrie Noonan
projectNumber EE0008635
projectTitle Device Design and Robust Periodic Motion Control of an Ocean Kite System for Marine Hydrokinetic Energy Harvesting
publisher North Carolina State University
resource-type Dataset
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Gruppi
  • AmeriGEOSS
  • National Provider
  • North America
Tag
  • acoustic-doppler-current-profiler
  • adcp
  • amerigeo
  • amerigeoss
  • cape-hatteras
  • characterization
  • ckan
  • control-temperature-depth
  • ctd
  • current
  • energy
  • geo
  • geoss
  • gulf-stream
  • hydrokinetic
  • marine
  • mhk
  • mooring
  • national
  • north-america
  • north-carolina
  • ocean
  • oceanography
  • power
  • resouce
  • resource-assessment
  • united-states
  • velocity
isopen True
license_id cc-by
license_title Creative Commons Attribution
license_url http://www.opendefinition.org/licenses/cc-by
maintainer Chris Vermillion
maintainer_email cvermil@ncsu.edu
metadata_created 2025-11-19T18:16:21.690339
metadata_modified 2025-11-19T18:16:21.690345
notes Multi-year measurements of current velocity, salinity, and temperature from fixed and vessel-mounted sensors quantify Gulf Stream (GS) 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.
num_resources 1
num_tags 28
title Observation-Based Resource Assessment of Gulf Stream MHK