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Water temperature, salinity, marine chemistry, biology, and geology taken by CTD and other instruments in the Bering and Chukchi Sea from the research vessel Xuelong from 2018-09-04 to 2018-09-09 (NCEI Accession 0254257)


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            title:  Water temperature, salinity, marine chemistry, biology, and geology taken by CTD and other instruments in the Bering and Chukchi Sea from the research vessel Xuelong from 2018-09-04 to 2018-09-09 (NCEI Accession 0254257)
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                date:  2022-07-01
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                  Anchor:  NCEI Accession ID 0254257
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/5642 Zexun Wei
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        abstract:  This dataset contains water temperature, salinity, currents, marine chemistry, biology, geology, and underway meteorology taken by CTD, LADCP, and other instruments in the Bering and Chukchi Sea from the research vessel Xuelong from 2018-09-04 to 2018-09-09. Data were collected during the CHINARE 2018 Arctic expedition, including work performed in the US EEZ. Data are in text, xls, csv formats. Data report is in pdf. CTD data are in the SeaBird HEX format, processed data are in CNV. ADCP data are in the Teledyne RD Instruments binary format (*.0000), processed data are in NetCDF. This dataset is U.S. State Department MSR U2018-018 as part of the World Data Services for Geophysics and Oceanography.
        purpose:  This dataset is available to the public for a wide variety of uses including scientific research and analysis.
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                    date:  2022-06-20
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/31 ATMOSPHERIC VARIABLES
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/83 CHLOROPHYLL A
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/116 DISSOLVED OXYGEN
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/168 ICHTHYOPLANKTON IDENTITY
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/230 NUTRIENTS
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              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/ca8de50f-b795-42b7-9301-8baffe2de0f3 ADCP > Acoustic Doppler Current Profiler
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              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/01cc0beb-7c9a-40ed-ad86-0661b41aee53 CTD > Conductivity, Temperature, Depth
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/4dc13375-a2a4-40ed-a556-51e887438769 PLANKTON NETS
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/d5c27e06-b779-44e7-9e0f-579a00cedba0 SEDIMENT CORERS > SEDIMENT CORERS
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                title:  Global Change Master Directory (GCMD) Instrument Keywords
                date:  (CI_Date)
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                    dateType:  (CI_DateTypeCode) revision
                edition:  19
                citedResponsibleParty:  (CI_ResponsibleParty)
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                            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). 2024. GCMD Keywords, Version 19. 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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            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/1bb21d0f-bf48-42b5-8e09-cc0d58407e4a Ships
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                title:  Global Change Master Directory (GCMD) Platform Keywords
                date:  (CI_Date)
                    date:  2024
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                edition:  19
                citedResponsibleParty:  (CI_ResponsibleParty)
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                            linkage: https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
                            protocol:  HTTPS
                            name:  GCMD Keyword Forum Page
                            description:  Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. 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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            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/7e35ea67-a0c9-49fa-97de-e5f8f5b9ee6d OCEAN > ARCTIC OCEAN > CHUKCHI SEA
            keyword:
              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/d85ae1ed-4b5f-440d-aaf0-7f9d605fec3b OCEAN > PACIFIC OCEAN > NORTH PACIFIC OCEAN > BERING SEA
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                title:  Global Change Master Directory (GCMD) Location Keywords
                date:  (CI_Date)
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                    dateType:  (CI_DateTypeCode) revision
                edition:  19
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                            city:  Greenbelt
                            administrativeArea:  MD
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                            linkage: https://forum.earthdata.nasa.gov/app.php/tag/GCMD%2BKeywords
                            protocol:  HTTPS
                            name:  GCMD Keyword Forum Page
                            description:  Global Change Master Directory (GCMD). 2024. GCMD Keywords, Version 19. 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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            otherConstraints:  Cite as: Wei, Zexun (2022). Water temperature, salinity, marine chemistry, biology, and geology taken by CTD and other instruments in the Bering and Chukchi Sea from the research vessel Xuelong from 2018-09-04 to 2018-09-09 (NCEI Accession 0254257). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/1y02-6e77. Accessed [date].
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            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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                  TimePeriod:
                    beginPosition:  2018-09-04
                    endPosition:  2018-09-09
        supplementalInformation:  This dataset was submitted to NCEI by FTP.
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                orderingInstructions:  Contact NCEI for other distribution options and instructions.
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                description:  NCEI Accession 0254257 v1.1 was published.
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                  DateTime:  2022-07-01T18:57:56Z
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            organisationName:  NOAA National Centers for Environmental Information
            role:  (CI_RoleCode) custodian
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        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.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  CTD
            type:  CTD
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        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  meteorological sensor
            type:  meteorological sensor
            description:  Any meteorological sensor, but also see specific instruments such as aerovane, anemometer, etc.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  net - plankton net
            type:  net - plankton net
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        instrument:  (MI_Instrument)
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        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  sediment sampler - corer
            type:  sediment sampler - corer
            description:  sediment coring device gravity or other coring device used to collect surfacial and near-surficial sediment samples
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  XUE LONG
            description:  R/V icebreaker, IMO 8877899, Owner: Polar Research Institute of China, Overall length (meters): 167.0(m) https://en.pric.org.cn/index.php?c=category&id=90 Additional equipment: Dolphin helicopter Overall length (meters): 11.44 Registration no.: B-7102 Call sign: 7102
            instrument: (missing)