Surface ocean velocities obtained by HF radar from stations located along coastal waters of Hawaii, North Slope Alaska, Puerto Rico/Virgin Islands, eastern US/Gulf of Mexico and western US

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The archival package contains ocean surface radial velocities collected from High frequency (HF) radar stations. NDBC, which with SIO assembles data from the IOOS HF Radar Network, submits these data monthly to NCEI as part of NCEI's Integrated Ocean Observing System Data Assembly Centers (IOOS DACs) Data Stewardship Program. Radial velocity files contain metadata in a key-value format while the measured velocities and associated ancillary data are reported in a tab-delimited format.

Remote sensing of ocean surface velocity from shore-based HF radar sites bridges an operational observational gap between point samples obtained from in-situ sampling and synoptic scale relatively low resolution data obtained from satellites by providing continuous mesoscale coverage at relatively high resolution near the coast. HF radar systems measure the speed of ocean surface currents in directions radial to the antenna in near real time. Radial measurements of ocean velocity may be used directly in some applications such as model assimilation but are commonly used in combination with overlapping sites to estimate the total vector ocean velocity. Radial velocities alone are a measurement of surface ocean velocity projected along the direction radial to the antenna.

Systems operate continuously in all weather conditions and are installed near the coastline. Range resolution of measured currents is determined by the radar transmit bandwidth used. Bandwidth is controlled by radio frequency licenses and translates to range resolutions of 0.5 to 6 kilometers. Maximum ranges of current measurements also depend on radar transmit frequency and vary from about 40 km offshore to about 200 km offshore. Velocities are measured in the upper 0.3 - 2.5 meters of the ocean depending on the operating frequency and vertical velocity shear profile.
  • Cite as: Hervey, Rex V; Harlan, Jack; US DOC/NOAA/NOS > Integrated Ocean Observing System Program; US DOC/NOAA/NWS > National Data Buoy Center (2015). Surface ocean velocities obtained by HF radar from stations located along coastal waters of Hawaii, North Slope Alaska, Puerto Rico/Virgin Islands, eastern US/Gulf of Mexico and western US. NOAA National Centers for Environmental Information. Dataset. [access date]
gov.noaa.nodc:NDBC-HFRadarRadial
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Distribution Formats
  • LLUV (Version: 1.12)
    • File Specification: http://support.codar.com/Technicians_Information_Page_for_SeaSondes/Docs/GuidesToFileFormats/File_LonLatUV_RDL_TOT_ELP.pdf
Ordering Instructions Data may be searched and downloaded using online services provided by NCEI using the online resource URLs in this record. Contact NCEI Information Services for custom orders. When requesting data from NCEI, the desired data set may be referred to by the unique package identification number listed in this metadata record.
Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact Information Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Time Period 2015-01-01 to Present
Spatial Bounding Box Coordinates
N: 71.3789
S: -64.9183
E: -62.8876
W: -163.014867
Spatial Coverage Map
General Documentation
  • Dataset Description
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Associated Resources
Publication Dates
  • publication: 2015-07-30
  • revision: 2018-03-25
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Ongoing - data is continually being updated
Data Update Frequency As needed
Supplemental Information
Documents about processing HF radar data and other related information are archived in NCEI accession 0126755 (see http://accession.nodc.noaa.gov/0126755)
Purpose Basic research
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Hervey, Rex V; Harlan, Jack; US DOC/NOAA/NOS > Integrated Ocean Observing System Program; US DOC/NOAA/NWS > National Data Buoy Center (2015). Surface ocean velocities obtained by HF radar from stations located along coastal waters of Hawaii, North Slope Alaska, Puerto Rico/Virgin Islands, eastern US/Gulf of Mexico and western US. NOAA National Centers for Environmental Information. Dataset. [access date]
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Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science and Services Keywords
  • EARTH SCIENCE > OCEANS > OCEAN CIRCULATION > OCEAN CURRENTS
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NOS/CO-OPS > Center for Operational Oceanographic Products and Services, National Ocean Service, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NWS/NDBC > National Data Buoy Center, National Weather Service, NOAA, U.S. Department of Commerce
  • IOOS > Integrated Ocean Observing System, NOAA, U.S. Department of Commerce
  • WHOI > WOODS HOLE OCEANOGRAPHIC INSTITUTION
NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
  • OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
  • OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > CARIBBEAN SEA
  • OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN > GULF OF MEXICO
  • OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN
  • OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN
  • OCEAN > SOUTHERN OCEAN
HF Radar Site Names
  • Amagansett, New York
  • Anasco, Puerto Rico
  • Angel Island, CA
  • Assateague, MD
  • Big Creek
  • Block Island
  • Block Island, RI
  • Bodega Marine Laboratory Long Range
  • Bodega Marine Laboratory, CA
  • Bradley Beach, NJ
  • Brant Beach, NJ
  • Brigantine, NJ
  • Cabo Rojo Lighthouse at Cabo Rojo, Puerto Rico
  • Cabo Rojo, Puerto Rico
  • Cape Blanco, OR
  • Cape Hatteras, NC
  • Cape Henlopen, DE
  • Cape Henry, VA, USA
  • Cape May Point, NJ
  • Cape Shore Lab, NJ
  • Cape Simpson, AK
  • Cape St. Mary, NS, CA
  • Catalina Island, CA
  • Cedar Island, VA
  • Clam Harbour, NS
  • Coal Oil Pt.
  • Commonweal Center, Bolinas, CA
  • Conalep, Mexico
  • Core Banks, NC
  • Crandon, FL
  • Crissy Field, CA
  • Dan Blocker, CA
  • Dana Point, CA
  • Dania Beach, FL
  • Diablo Canyon Long Range, CA
  • Diablo Canyon Standard Range, CA
  • Dockweiler Headquarters, CA
  • Duck, NC
  • Erendira, Mexico
  • FallBack22, Pt. Sal, CA
  • Fort Bragg, CA
  • Fort Caswell, NC
  • Fort Stevens, OR
  • Ft. De Soto, FL
  • Georgetown, SC
  • Georgina Point, Canada
  • Grand Manan, NB, CA
  • Granite Canyon
  • Great Captain Island, CT
  • Green's Island, Maine, USA
  • Haulover Inlet, FL
  • Hempstead, NY
  • Henderson Beach State Park, FL
  • Hillsboro, FL
  • IDigby Island, Prince Rupert
  • Icy Cape, AK
  • Iona Wastewater Treatment Plant, Vancouver
  • Jekyll Island, GA, USA
  • Joubin Island
  • Kaena, HI
  • Kaka'ako, HI
  • Kalaeloa, HI
  • Kapolei, HI
  • Keaukaha, HI
  • Koko Head, HI
  • Land's End, CA
  • Little Island Park, VA
  • Long Point Wildlife Refuge, MA
  • Loomis Lake, OR
  • Loveladies
  • MVCO Meteorological Mast, MA
  • Mandalay Generating Station
  • Manhattan Beach, OR
  • Martha's Vineyard, MA
  • Misquamicut, RI
  • Montara Sanitary District, Montara, CA
  • Montauk, NY
  • Moriches, NY
  • Moss Landing Marine Laboratories, CA
  • NULL
  • Nantucket Island, MA
  • Nantucket, MA
  • Naples, FL
  • Nauset, MA
  • Naval Postgraduate School
  • Newport Beach, CA
  • Nicholas Canyon, CA
  • North Wildwood, NJ
  • Ocean View Beach, VA
  • Old Bridge Waterfront Park, NJ
  • Orange Beach State Park, AL
  • Padre Island, TX
  • Palmer Station
  • Pass Christian Yacht Club, MS
  • Pepe'ekeo, HI
  • Pescadero, CA
  • Pillar Point Air Force Station, CA, USA
  • Point Arena Field Station
  • Point Atkinson, West Vancouver
  • Point Barrow, AK
  • Point Bonita, CA
  • Point Conception, CA
  • Point Estero, CA
  • Point Fermin, CA
  • Point Lay, AK
  • Point Loma Waste Water Treatment Plant, CA
  • Point Mugu, CA
  • Point Pinos, Pacific Grove, CA
  • Point Reyes, CA
  • Point San Luis, CA
  • Point St. George, CA
  • Point Sur Long Range, CA
  • Ponce Yacht and Fishing Club at Ponce, Puerto Rico
  • Port Monmouth, NJ
  • Provincetown, MA
  • Pt. Arguello, CA
  • Punta Tuna Lighthouse, Maunabo, Puerto Rico
  • Quinta, Mexico
  • Ragged Point, CA
  • Reddington, FL
  • Refugio State Beach
  • Ridley Island, Canada
  • Rollover Pass, TX
  • Romberg Tiburon Center, CA
  • San Clemente Is, CA
  • San Diego, Border Park
  • San Diego, Coronado Islands
  • San Diego, Point Loma
  • San Diego, Scripps Long-range
  • San Elijo State Beach, CA
  • San Nicolas Island, CA
  • San Quintin Baja California
  • Sandy Cove, NS
  • Sandy Hook
  • Sandy Hook, NJ
  • Santa Cruz
  • Santa Cruz Island, CA
  • Sausalito-Marin City Sanitary District, CA, USA
  • Sauzal, Mexico
  • Sea Bright, NJ
  • Seaside Park, NJ
  • Seaside, OR
  • Shelter Cove, CA
  • Silver Slipper Casino, MS
  • Singing River, MS
  • Slide Ranch, CA
  • Squibnocket Farms, MA
  • St. Catherine's, GA
  • Staten Island, NY
  • Stehli Beach, NY
  • Strathmere, NJ
  • Summerland Sanitary District
  • Sunset Beach Resort, Cape Charles, VA
  • Surfside, TX
  • The Exploratorium Museum, CA
  • Torrance Beach, CA
  • Trinidad, CA
  • Upper Trestles, San Diego, CA
  • Venice, FL
  • Villarino, Mexico
  • Virginia Key, FL
  • Wainwright, AK
  • Waldport, OR
  • Washburne, OR
  • Wauwermans Islands
  • Westshore Coal Terminal, Tsawwassen
  • Wildwood
  • Winchester Bay, OR
  • Yaquina Head Long, OR
  • Yaquina Head South, OR
Project keywords NODC PROJECT NAMES THESAURUS Global Change Master Directory (GCMD) Project Keywords
  • IOOS > Integrated Ocean Observing System
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Hervey, Rex V; Harlan, Jack; US DOC/NOAA/NOS > Integrated Ocean Observing System Program; US DOC/NOAA/NWS > National Data Buoy Center (2015). Surface ocean velocities obtained by HF radar from stations located along coastal waters of Hawaii, North Slope Alaska, Puerto Rico/Virgin Islands, eastern US/Gulf of Mexico and western US. NOAA National Centers for Environmental Information. Dataset. [access date]
Access Constraints
  • NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees
  • Digital data may be downloaded from NCEI at no charge in most cases. For custom orders of digital data or to obtain a copy of analog materials, please contact NCEI Information Services for information about current fees.
Lineage information for: series
Processing Steps
  • 2015-07-30T13:49:14 - NCEI Accession 0126755 v1.1 was published.
  • 2015-11-26T02:10:21 - NCEI Accession 0138305 v1.1 was published.
  • 2015-11-28T00:29:29 - NCEI Accession 0138389 v1.1 was published.
  • 2015-12-01T13:33:24 - NCEI Accession 0138488 v1.1 was published.
  • 2015-12-03T09:12:59 - NCEI Accession 0138584 v1.1 was published.
  • 2015-12-07T00:44:56 - NCEI Accession 0138776 v1.1 was published.
  • 2015-12-09T11:39:23 - NCEI Accession 0138948 v1.1 was published.
  • 2015-12-14T01:44:09 - NCEI Accession 0139156 v1.1 was published.
  • 2015-12-25T10:02:59 - NCEI Accession 0139553 v1.1 was published.
  • 2016-02-25T08:25:32 - NCEI Accession 0144289 v1.1 was published.
  • 2016-05-25T07:32:09 - NCEI Accession 0151734 v1.1 was published.
  • 2016-07-07T13:21:08 - NCEI Accession 0154390 v1.1 was published.
  • 2016-07-21T21:01:41 - NCEI Accession 0141107 v1.1 was published.
  • 2016-07-25T08:15:39 - NCEI Accession 0155984 v1.1 was published.
  • 2016-08-25T09:02:09 - NCEI Accession 0156405 v1.1 was published.
  • 2016-09-25T10:45:11 - NCEI Accession 0156626 v1.1 was published.
  • 2016-10-25T08:30:20 - NCEI Accession 0156802 v1.1 was published.
  • 2016-11-14T19:32:23 - NCEI Accession 0138671 v1.1 was published.
  • 2016-11-25T11:49:20 - NCEI Accession 0157044 v1.1 was published.
  • 2016-12-25T11:43:22 - NCEI Accession 0157648 v1.1 was published.
  • 2017-01-25T12:07:04 - NCEI Accession 0159414 v1.1 was published.
  • 2017-02-25T10:08:33 - NCEI Accession 0161130 v1.1 was published.
  • 2017-04-21T18:57:25 - NCEI Accession 0137088 v1.1 was published.
  • 2017-05-25T09:52:47 - NCEI Accession 0162853 v1.1 was published.
  • 2017-06-07T16:42:45 - NCEI Accession 0148080 v1.1 was published.
  • 2017-06-12T14:11:12 - NCEI Accession 0162205 v1.1 was published.
  • 2017-06-15T22:22:02 - NCEI Accession 0162429 v1.1 was published.
  • 2017-06-28T13:36:26 - NCEI Accession 0163751 v1.1 was published.
  • 2017-07-14T17:52:21 - NCEI Accession 0137265 v1.1 was published.
  • 2017-07-25T10:44:14 - NCEI Accession 0164434 v1.1 was published.
  • 2017-08-25T11:27:05 - NCEI Accession 0165176 v1.1 was published.
  • 2018-02-05T16:14:07 - NCEI Accession 0145802 v1.1 was published.
  • 2018-02-27T05:32:00 - NCEI Accession 0165176 was revised and v2.2 was published.
  • 2018-02-28T06:46:58 - NCEI Accession 0170848 v1.1 was published.
  • 2018-03-01T03:52:49 - NCEI Accession 0170892 v1.1 was published.
  • 2018-03-01T13:53:29 - NCEI Accession 0170895 v1.1 was published.
  • 2018-03-02T04:43:08 - NCEI Accession 0170926 v1.1 was published.
  • 2018-03-03T04:31:34 - NCEI Accession 0170965 v1.1 was published.
  • 2018-03-04T03:32:05 - NCEI Accession 0170978 v1.1 was published.
  • 2018-03-25T10:18:05 - NCEI Accession 0171509 v1.1 was published.
Output Datasets
Acquisition Information (collection)
Instrument
  • radar - high frequency oceanographic
Last Modified: 2018-04-20T15:42:52
For questions about the information on this page, please email: NODC.DataOfficer@noaa.gov