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Ocean surface radial velocities obtained by High Frequency (HF) radar in coastal waters of Gulf of Alaska during January 2007 (NCEI Accession 0177815)


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      DateTime:  2024-03-26T12:21:04Z
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        citation:  (CI_Citation)
            title:  Ocean surface radial velocities obtained by High Frequency (HF) radar in coastal waters of Gulf of Alaska during January 2007 (NCEI Accession 0177815)
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                date:  2018-10-30
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                  Anchor:  NCEI Dataset ID gov.noaa.nodc:0177815
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                  Anchor:  NCEI Accession ID 0177815
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1730 NOAA National Centers for Environmental Information
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/4438 Rex V. Hervey
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/289 US DOC; NOAA; NWS; National Data Buoy Center (NDBC)
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/180 University of Alaska Fairbanks (UAF)
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/4438 Hervey, Rex V.
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/289 US DOC; NOAA; NWS; National Data Buoy Center (NDBC)
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        abstract:  The National Data Buoy Center in collaboration with the Scripps Institution of Oceanography assembles the data from the Integrated Ocean Observing System Data Assembly Center's Data Stewardship Program and submits the data on a monthly basis to NCEI. 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.
        purpose:  This dataset is available to the public for a wide variety of uses including scientific research and analysis.
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/insttype/details/140 radar - high frequency oceanographic
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            keyword:  current radial u-component
            keyword:  current radial v-component
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              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/20186f0a-7a29-4868-9ddd-2bb332b68505 OSCR > OCEAN SURFACE CURRENT RADAR
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            keyword:  ANCH - Anchor Point, AK
            keyword:  NANW - Nanwalek, AK
            type:  (MD_KeywordTypeCode) place
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                title:  HF Radar Site Code and Name
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            otherConstraints:  Cite as: Hervey, Rex V.; NOAA National Data Buoy Center (2018). Ocean surface radial velocities obtained by High Frequency (HF) radar in coastal waters of Gulf of Alaska during January 2007 (NCEI Accession 0177815). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0177815. Accessed [date].
        resourceConstraints:  (MD_LegalConstraints)
            useLimitation:  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 the data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
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            otherConstraints:  Use liability: 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.
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                title:  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
                date:  (CI_Date)
                    date:  2015-07-30
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                        title:  NOAA National Centers for Environmental Information
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                    code:  gov.noaa.nodc:NDBC-HFRadarRadial
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        language:
          LanguageCode:  eng; USA
        characterSet:  (MD_CharacterSetCode) utf8
        topicCategory:  (MD_TopicCategoryCode) environment
        topicCategory:  (MD_TopicCategoryCode) oceans
        extent:  (EX_Extent)
            geographicElement:  (EX_GeographicBoundingBox)
                westBoundLongitude:  -151.923533
                eastBoundLongitude:  -151.865
                southBoundLatitude:  59.357217
                northBoundLatitude:  59.765333
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  2007-01-01
                    endPosition:  2007-01-31
        supplementalInformation:  Documents about processing HF radar data and other related information are archived in NCEI accession 0126755.
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1730 NOAA National Centers for Environmental Information
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                        voice:  +1-301-713-3277
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                        electronicMailAddress:  NCEI.Info@noaa.gov
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                fees:  In most cases, electronic downloads of the data are free. However, fees may apply for custom orders, data certifications, copies of analog materials, and data distribution on physical media.
                orderingInstructions:  Contact NCEI for other distribution options and instructions.
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                name:  LLUV
                version:  1.12
                specification: http://support.codar.com/Technicians_Information_Page_for_SeaSondes/Docs/GuidesToFileFormats/File_LonLatUV_RDL_TOT_ELP.pdf
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                    protocol:  HTTPS
                    applicationProfile:  Web browser
                    name:  NCEI Dataset Landing Page
                    description:  Navigate directly to the URL for a descriptive web page with download links.
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                    linkage: https://www.ncei.noaa.gov/data/oceans/ndbc/hfradar/radial/2007/200701/
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                    linkage: ftp://ftp-oceans.ncei.noaa.gov/pub/data.nodc/ndbc/hfradar/radial/2007/200701/
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                    linkage: ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0126/0177815/
                    protocol:  FTP
                    applicationProfile:  Any FTP client
                    name:  FTP
                    description:  These data are available through the File Transfer Protocol (FTP). FTP is no longer supported by most internet browsers. You may copy and paste the FTP link to the data into an FTP client (e.g., FileZilla or WinSCP).
                    function:  (CI_OnLineFunctionCode) download
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    dataQualityInfo:  (DQ_DataQuality)
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                description:  NCEI Accession 0177815 v1.1 was published.
                dateTime:
                  DateTime:  2018-10-30T16:44:16Z
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                        title:  NCEI Accession 0177815 v1.1
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                                    linkage: https://www.ncei.noaa.gov/archive/accession/0177815/1.1
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                                    name:  NCEI Accession 0177815 v1.1
                                    description:  published 2018-10-30T16:44:16Z
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    metadataMaintenance:  (MD_MaintenanceInformation)
        maintenanceAndUpdateFrequency:  (MD_MaintenanceFrequencyCode) asNeeded
        maintenanceNote:  Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
        contact:  (CI_ResponsibleParty)
            organisationName:  NOAA National Centers for Environmental Information
            role:  (CI_RoleCode) custodian
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    acquisitionInformation:  (MI_AcquisitionInformation)
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  radar - high frequency oceanographic
            type:  radar - high frequency oceanographic
            description: http://ifmaxp1.ifm.uni-hamburg.de/WERA.shtml