NOAA/EcoFOCI Chukchi Sea ADCP Mooring time-series data, stations C1, C2, and C3, 2010-08-29 to 2012-08-22, including zonal (U) and meridional (V) current measurements (NCEI Accession 0149848)


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            title:  NOAA/EcoFOCI Chukchi Sea ADCP Mooring time-series data, stations C1, C2, and C3, 2010-08-29 to 2012-08-22, including zonal (U) and meridional (V) current measurements (NCEI Accession 0149848)
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                date:  2016-05-11
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        abstract:  These Acoustic Doppler Current Profiler (ADCP) time-series data sets, consist of zonal current (U) and meridional current (V) measurements from moored instruments at 3 stations in the Chukchi Sea (C1, C2, C3). Instruments were deployed on year-long moorings from the F/V Alaskan Enterprise in August, 2010 and from F/V Mystery Bay in August, 2011 during late-summer CHAOZ research cruises. The cruise was funded by DOI Bureau of Ocean Energy Management (BOEM) through the NOAA National Marine Mammal Laboratory. Mooring operations on this cruise were managed by EcoFOCI personnel from NOAA/PMEL. ADCP data were processed at NOAA/PMEL/EcoFOCI using standard techniques. Missing data are listed as 1.0e+35
        purpose:  The overall goal of the CHAOZ study is to document the distribution and relative abundance of bowhead, humpback, right, fin, gray, and other whales in areas of potential seismic surveying, drilling, construction, and production activities and relate changes in those variables to oceanographic conditions, indices of potential prey density, and anthropogenic activities. This study has four component projects: oceanography, passive acoustics, zooplankton, and climate modeling. Passive acoustic moorings, deployed concurrently with bio-physical moorings will provide previously unattainable year-round assessments of the seasonal occurrence of various whale species in this planning area and their response to environmental changes. The CHAOZ study is a collaborative effort between NMML, the Pacific Marine Environmental Laboratory (PMEL), the Resource Assessment and Conservation Engineering Division (RACE) at AFSC, and Cornell University; funded through an Inter-Agency agreement between NMML and the Bureau of Ocean Energy Management (BOEM).
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            otherConstraints:  Cite as: Stabeno, Phyllis J.; Berchok, C. L.; Crance, J. L.; Napp, J. M.; NOAA, Pacific Marine Environmental Laboratory; NOAA, National Marine Mammal Laboratory (2016). NOAA/EcoFOCI Chukchi Sea ADCP Mooring time-series data, stations C1, C2, and C3, 2010-08-29 to 2012-08-22, including zonal (U) and meridional (V) current measurements (NCEI Accession 0149848). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://www.ncei.noaa.gov/archive/accession/0149848. Accessed [date].
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                extent:
                  TimePeriod:
                    beginPosition:  2010-08-29
                    endPosition:  2012-08-22
        supplementalInformation:  Submission Package ID: YDC7UK
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    distributionInfo:  (MD_Distribution)
        distributor:  (MD_Distributor)
            distributorContact:  (CI_ResponsibleParty)
                organisationName:
                  Anchor:  https://www.nodc.noaa.gov/cgi-bin/OAS/prd/institution/details/1730 NOAA National Centers for Environmental Information
                contactInfo:  (CI_Contact)
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                        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.
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                    linkage: https://www.ncei.noaa.gov/archive/accession/0149848
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                    linkage: https://www.ncei.noaa.gov/archive/accession/oas/149848
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                    description:  These data are available through the File Transfer Protocol (FTP). You may use any FTP client to download these data.
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                description:  NCEI Accession 0149848 v1.1 was published.
                dateTime:
                  DateTime:  2016-05-11T13:07:19Z
                output:  (LE_Source)
                    sourceCitation:  (CI_Citation)
                        title:  NCEI Accession 0149848 v1.1
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                                    linkage: https://www.ncei.noaa.gov/archive/accession/0149848/1.1
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                                    name:  NCEI Accession 0149848 v1.1
                                    description:  published 2016-05-11T13:07:19Z
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                description:  Data Type: CURRENT SPEED - EAST/WEST COMPONENT (U) (measured); Units: cm/s; Observation Type: in situ; Sampling Instrument: Teledyne RD Instruments 600 kHz Workhorse Sentinel ADCP (Acoustic Doppler Current Profiler).
            processStep:  (LE_ProcessStep)
                description:  Data Type: CURRENT SPEED - NORTH/SOUTH COMPONENT (V) (measured); Units: cm/s; Observation Type: in situ; Sampling Instrument: Teledyne RD Instruments 600 kHz Workhorse Sentinel ADCP (Acoustic Doppler Current Profiler).
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        maintenanceNote:  Metadata are developed, maintained and distributed by NCEI. Updates are performed as needed to maintain currentness.
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            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:  ADCP
            type:  ADCP
            description:  Acoustic Doppler Current Profiler The Acoustic Doppler Current Profiler (ADCP) measures currents beneath a ship while underway. Sound signals sent from the moving ship bounce back to receivers aboard the ship. This provides a profile of water movement relative to the ship-precise modern navigation, allowing the ship's motion to be subtracted from the data. These devices are also used on moorings and profilers and, along with acoustic backscattering, measure animal biomass. Particles in the path of the sound waves, mostly plankton, reflect a small part of the sound energy back toward receivers, allowing researchers to make remote estimates of the sizes and numbers of animals present in the water column. Before the 1970's, the most technologically advanced instrument used to measure water velocity was known as a Doppler speed log. This evolved into the first commercial ADCP, produced in the mid-1970's, which used averaging. Later in the 1970's, the first vessel-mounted ADCP was developed to measure water velocity more accurately and to allow measurement in range cells over a depth profile. As instruments evolved, so did new techniques in Doppler signal processing. Initially, Doppler speed logs used simple analog signal processing methods, which are still used in some commercial speed logs today. However, the first ADCPs incorporated analog-to-digital signal conversion over a narrow communication bandwidth. Around 1990, this technique was developed into broadband signal processing. Since then, broadband ADCPs have been able to generate very accurate, real-time velocity measurements.
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                code:  MOORINGS
            description:  MOORINGS
            instrument: (missing)