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Ice Tracking drifters deployed on nearshore ice near Barrow, AK, Chukchi Sea, 2015-03-26 to 2017-09-27 (NCEI Accession 0173716)


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            title:  Ice Tracking drifters deployed on nearshore ice near Barrow, AK, Chukchi Sea, 2015-03-26 to 2017-09-27 (NCEI Accession 0173716)
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                date:  2018-08-06
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/4706 Elizabeth Dobbins
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/206 University of Alaska Fairbanks; Institute of Marine Science (IMS/UAF)
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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/institution/details/206 University of Alaska Fairbanks; Institute of Marine Science (IMS/UAF)
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        abstract:  Twenty-five (25) prototype satellite-tracked ice trackers manufactured by PacificGyre Inc. were deployed on the sea ice along the Alaskan Arctic coast. Twenty were deployed in the spring of 2015 in clusters of five on first year and multi-year ice north of Barrow, AK, on landfast ice near Barrow, and in Harrison Bay in the Beaufort Sea. Five more were deployed in March 2017 within Elson Lagoon NE of Barrow. Trackers were transported via helicopter or snow machine to the deployment locations; trackers #7, #8, and #9 were dropped from the helicopter while in flight to test their ruggedness, and fell 30, 25, and 40 ft respectively. The IceTrackers were tracked from their release until they beached on-shore or died at sea because of battery failure or other causes. Tracker positions were determined via GPS, and positions were relayed via Iridium communications to PacificGyre's on-shore data center. Sampling rates in 2015 varied from 10 min to 2 hours. In 2017, drifters transmitted every 10 minutes from 3/1/2017 12:00 to 3/2/2017 5:00, and every 12 hours thereafter. The trackers were designed to float, and deployments continued after the ice melted. Many trackers remained active as sea ice re-formed in the region, and several trackers were frozen in the ice and released the following spring. Tracker #3 survived more than 2 years, transmitting positions from 4/16/2015 - 5/24/2017.
        purpose:  Design, develop, and test a new type of satellite-tracked ice drifter that can be deployed on coastal landfast ice by local hunters or on top of freely drifting mobile pack ice by helicopter to track the movement of sea ice in the northeast Chukchi Sea.
        credit:  Related Funding Agency: US DOI; Bureau of Ocean Energy Management
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            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/1ed45273-3e2b-4586-b852-05578c04041b OCEAN > ARCTIC OCEAN
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/86ed3782-8e30-4547-a774-35100b224d5a OCEAN > ARCTIC OCEAN > BEAUFORT SEA
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/7e35ea67-a0c9-49fa-97de-e5f8f5b9ee6d OCEAN > ARCTIC OCEAN > CHUKCHI SEA
            type:  (MD_KeywordTypeCode) place
            thesaurusName:  (CI_Citation)
                title:  Global Change Master Directory (GCMD) Location Keywords
                date:  (CI_Date)
                    date:  2023
                    dateType:  (CI_DateTypeCode) revision
                edition:  18
                citedResponsibleParty:  (CI_ResponsibleParty)
                    organisationName:  Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA)
                    contactInfo:  (CI_Contact)
                        address:  (CI_Address)
                            city:  Greenbelt
                            administrativeArea:  MD
                        onlineResource:  (CI_OnlineResource)
                            linkage: https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
                            protocol:  HTTPS
                            name:  GCMD Keyword Forum Page
                            description:  Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 18. Greenbelt, MD: Earth Science Data and Information System, Earth Science Projects Division, Goddard Space Flight Center (GSFC), National Aeronautics and Space Administration (NASA). URL (GCMD Keyword Forum Page): https://forum.earthdata.nasa.gov/app.php/tag/GCMD+Keywords
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            useLimitation:  accessLevel: Public
        resourceConstraints:  (MD_LegalConstraints)
            useConstraints:  (MD_RestrictionCode) otherRestrictions
            otherConstraints:  Cite as: Kasper, Jeremy; Mahoney, Andrew; Winsor, Peter (2018). Ice Tracking drifters deployed on nearshore ice near Barrow, AK, Chukchi Sea, 2015-03-26 to 2017-09-27 (NCEI Accession 0173716). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/may6-vc95. 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.
        resourceConstraints:  (MD_LegalConstraints)
            accessConstraints:  (MD_RestrictionCode) otherRestrictions
            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.
        language:
          LanguageCode:  eng; USA
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        topicCategory:  (MD_TopicCategoryCode) environment
        topicCategory:  (MD_TopicCategoryCode) oceans
        extent:  (EX_Extent)
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                westBoundLongitude:  168.0539
                eastBoundLongitude:  -22.3846
                southBoundLatitude:  65.6202
                northBoundLatitude:  88.0071
            temporalElement:  (EX_TemporalExtent)
                extent:
                  TimePeriod:
                    beginPosition:  2015-03-26
                    endPosition:  2017-09-27
        supplementalInformation:  Submission Package ID: N2DMUD
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    distributionInfo:  (MD_Distribution)
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:
                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1730 NOAA National Centers for Environmental Information
                contactInfo:  (CI_Contact)
                    phone:  (CI_Telephone)
                        voice:  +1-301-713-3277
                    address:  (CI_Address)
                        electronicMailAddress:  NCEI.Info@noaa.gov
                role:  (CI_RoleCode) pointOfContact
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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.
            distributorFormat:  (MD_Format)
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                transferSize:
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                    linkage: https://doi.org/10.25921/may6-vc95
                    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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                onLine:  (CI_OnlineResource)
                    linkage: https://www.ncei.noaa.gov/archive/accession/oas/173716
                    protocol:  HTTPS
                    applicationProfile:  Web browser
                    name:  Descriptive Information
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                    linkage: https://www.ncei.noaa.gov/archive/accession/download/173716
                    protocol:  HTTPS
                    applicationProfile:  Web browser
                    name:  HTTPS
                    description:  Navigate directly to the URL for data access and direct download.
                    function:  (CI_OnLineFunctionCode) download
                onLine:  (CI_OnlineResource)
                    linkage: ftp://ftp-oceans.ncei.noaa.gov/nodc/archive/arc0123/0173716/
                    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)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  NCEI Accession 0173716 v1.1 was published.
                dateTime:
                  DateTime:  2018-08-06T18:12:19Z
                output:  (LE_Source)
                    sourceCitation:  (CI_Citation)
                        title:  NCEI Accession 0173716 v1.1
                        date:  (CI_Date)
                            date: (inapplicable)
                            dateType:  (CI_DateTypeCode) publication
                        citedResponsibleParty:  (CI_ResponsibleParty)
                            individualName: (inapplicable)
                            contactInfo:  (CI_Contact)
                                onlineResource:  (CI_OnlineResource)
                                    linkage: https://www.ncei.noaa.gov/archive/accession/0173716/1.1
                                    protocol:  HTTPS
                                    name:  NCEI Accession 0173716 v1.1
                                    description:  published 2018-08-06T18:12:19Z
                                    function:  (CI_OnLineFunctionCode) download
                            role: (inapplicable)
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    dataQualityInfo:  (DQ_DataQuality)
        scope:  (DQ_Scope)
            level:  (MD_ScopeCode) dataset
        lineage:  (LI_Lineage)
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: LATITUDE (measured); Units: degrees E; Observation Category: in situ; Sampling Instrument: buoy - drifting buoy; Sampling and Analyzing Method: Trackers determined position via GPS. Trackers transmitted data to PacificGyre Inc. via Iridium. Data were then downloaded to lab computers via a wget call to the manufacturer's API.; Data Quality Method: Data were edited in the following ways: 1) data were trimmed to the deployment times; 2) duplicate records and times when the locations didn't change were removed. Longitude and latitude were hand edited to remove outliers..
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: LONGITUDE (measured); Units: degrees N; Observation Category: in situ; Sampling Instrument: buoy - drifting buoy; Sampling and Analyzing Method: Trackers determined position via GPS. Trackers transmitted data to PacificGyre Inc. via Iridium. Data were then downloaded to lab computers via a wget call to the manufacturer's API.; Data Quality Method: Data were edited in the following ways: 1) data were trimmed to the deployment times; 2) duplicate records and times when the locations didn't change were removed. Longitude and latitude were hand edited to remove outliers..
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: CURRENT - SPEED - WEST COMPONENT [CURRENT SPEED - EAST/WEST COMPONENT (U)] (calculated); Units: centimeter per second; Observation Category: in situ; Sampling Instrument: buoy - drifting buoy; Sampling and Analyzing Method: U (E/W velocity) and V (N/S velocity) were calculated from the hourly positions using centered difference. Speed was calculated from U and V.; Data Quality Method: Hand edited to remove outliers.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: CURRENT - SPEED - SOUTH COMPONENT [CURRENT SPEED - NORTH/SOUTH COMPONENT (V)] (calculated); Units: centimeter per second; Observation Category: in situ; Sampling Instrument: buoy - drifting buoy; Sampling and Analyzing Method: U (E/W velocity) and V (N/S velocity) were calculated from the hourly positions using centered difference. Speed was calculated from U and V.; Data Quality Method: Hand edited to remove outliers.
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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:  buoy - drifting buoy
            type:  buoy - drifting buoy
            description:  buoy - drifting buoy
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  HELICOPTER
            description:  HELICOPTER
            instrument: (missing)