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Partial pressure of carbon dioxide, temperature, salinity and other variables collected from surface underway observations during the ship of opportunity (SOOP) M/V Nuka Arctica cruises in the North Atlantic Ocean in 2018 (NCEI Accession 0190169)


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            title:  Partial pressure of carbon dioxide, temperature, salinity and other variables collected from surface underway observations during the ship of opportunity (SOOP) M/V Nuka Arctica cruises in the North Atlantic Ocean in 2018 (NCEI Accession 0190169)
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                date:  2019-06-26
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                date:  2020-05-13
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                  Anchor:  DOI 10.25921/hyc9-fx39
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                  Anchor:  NCEI Accession ID 0190169
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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/5037 Meike Becker
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1606 GEOMAR Helmholtz Centre for Ocean Research Kiel (GEOMAR)
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/660 University of Bergen
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/4923 Are Olsen
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1508 Bjerknes Centre for Climate Research
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1508 Bjerknes Centre for Climate Research
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        abstract:  This dataset includes surface underway chemical, meteorological and physical data collected from SOOP M/V Nuka Arctica cruises in the North Atlantic Ocean from 2018-01-18 to 2018-11-30. These data include measurements of mole fraction of carbon dioxide (CO2) in the equilibrator headspace (dry) at equilibrator temperature, mole fraction of CO2 measured in dry outside air, barometric pressure in the equilibrator headspace, water temperature in equilibrator, sea surface temperature, and fugacity of CO2 in sea water at SST and 100% humidity. The instruments used to collect these data include carbon dioxide (CO2) gas analyzer and shower head chamber equilibrator for autonomous CO2 measurement.
        purpose:  The major objectives of this SOOP project is to provide a high quality measurements of atmospheric and sea surface fCO2, sea surface salinity, temperature, and other parameters in the North Atlantic Ocean.
        credit:  Funding Information: University of Bergen, Bjerknes Centre for Climate Research (Surface Water pCO2 Measurements from Ships of Opportunity (SOOP))
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/38 BAROMETRIC PRESSURE
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/71 Partial pressure (or fugacity) of carbon dioxide - atmosphere
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/70 partial pressure of carbon dioxide - water
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/datatype/details/309 SALINITY - SURFACE WATER
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/insttype/details/206 barometric pressure sensor
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/insttype/details/183 carbon dioxide (CO2) gas analyzer
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/insttype/details/184 showerhead equilibrator
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/obstype/details/27 surface underway
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              Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/platform/details/9379 NUKA ARCTICA
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            otherConstraints:  Cite as: Olsen, Are; Becker, Meike (2019). Partial pressure of carbon dioxide, temperature, salinity and other variables collected from surface underway observations during the ship of opportunity (SOOP) M/V Nuka Arctica cruises in the North Atlantic Ocean in 2018 (NCEI Accession 0190169). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/hyc9-fx39. Accessed [date].
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                title:  Olsen, A., Brown, K. R., Chierici, M., Johannessen, T., and Neill, C.: Sea-surface CO2 fugacity in the subpolar North Atlantic, Biogeosciences, 5, 535–547, https://doi.org/10.5194/bg-5-535-2008, 2008.
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                title:  Wanninkhof, R., & Thoning, K. (1993). Measurement of fugacity of CO2 in surface water using continuous and discrete sampling methods. Marine Chemistry, 44(2–4), 189–204. https://doi.org/10.1016/0304-4203(93)90202-y
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                title:  VOS Nuka Arctica Lines
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                    date:  2022
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                      Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1730 US DOC; NOAA; NESDIS; National Centers for Environmental Information (NCEI)
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                title:  NOAA National Centers for Environmental Information (2022). Ocean Carbon and Acidification Data System (OCADS). NOAA National Centers for Environmental Information. https://www.ncei.noaa.gov/products/ocean-carbon-acidification-data-system
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        supplementalInformation:  In this accession, NCEI has archived multiple versions of these data. The latest (and best) version of these data has the largest version number.
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                description:  NCEI Accession 0190169 v1.1 was published.
                dateTime:
                  DateTime:  2019-06-26T18:24:18Z
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                dateTime:
                  DateTime:  2020-05-13T07:57:49Z
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                            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: pCO2 (fCO2) autonomous; Abbreviation: fCO2_SW@SST; Unit: uatm; Observation type: Surface underway; Measured or calculated: Measured; Sampling instrument: Seawater pump; Location of seawater intake: Bow; Analyzing instrument: Infrared Analyzer: LI-COR model 6262; Detailed sampling and analyzing information: Infrared analysis of headspace in equilibrium with flowing seawater; Equilibrator type: two stage showerhead; Equilibrator volume: approx 0.5 (vent equ) and 2 to 2.5 (main equ); Is the equilibrator vented or not: Vented; Water flow rate: approx 2 to 3.5 L/min; Gas flow rate: 80 L/min; Drying method for gas: Gas stream passes through a thermoelectric condenser (~5 C) and then through a Perma Pure (Nafion) dryer before reaching the analyzer (90% dry).; SEA CO2 gas detector manufacturer: Licor, Inc; SEA CO2 gas detector model: Licor 6262; SEA CO2 gas detector resolution: +/- 0.2 uatm; SEA CO2 gas detector uncertainty: +/- 1 uatm; Standard gas manufacturer: Primary Standards: NOAA/CMDL, working standards: YARA; Standard gas concentration: Traceable to the WMO-X93 scale. Primary standards from NOAA calibrated May 21 2008. One zero gas and three standards at approx 192 388 and 440 ppm; At what temperature was pCO2 reported: In situ sea surface temperature; Uncertainty: 0.01C; Quality flag convention: WOCE quality control flags are used: 2 = good value, 3 = questionable value, 4 = bad value; Method reference: Wanninkhof and Thoning, Marine Chemistry 44, 189-205, 1993; Researcher name: Are Olsen; Researcher institution: University of Bergen, Bjerknes Centre for Climate Research.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Sea Surface Temperature; Abbreviation: SST_C; Unit: degrees celcius; Observation type: Surface Underway; Sampling instrument: Intake temperature sensor, Hart Scientific; Analyzing instrument: Probe: 5610-9, thermometer:1524; Detailed sampling and analyzing information: Factory calibrated against a NIST tracable thermometer. Regular zero point calibrations as well as checks against equilibrator thermometer; Uncertainty: (+/-) 0.01C; Researcher name: Are Olsen; Researcher institution: University of Bergen, Bjerknes Centre for Climate Research.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Equilibrator Temperature; Abbreviation: EQ_TMP; Unit: Deg. C; Observation type: Surface Underway; Sampling instrument: Intake temperature sensor, Hart Scientific; Analyzing instrument: Probe: 5610-9, thermometer:1524; Detailed sampling and analyzing information: Factory calibrated against a NIST tracable thermometer. Regular zero point calibrations and well as checks against intake thermometer.; Uncertainty: (+/-) 0.01C; Researcher name: Are Olsen; Researcher institution: University of Bergen, Bjerknes Centre for Climate Research.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Equilibrator Pressure; Abbreviation: EQ_PRE; Unit: hPa; Sampling instrument: Equilibrator pressure, this is measured differentially using a Setra 239 sensor. The given equilibrator pressure is sum of this and the Licor cell pressure (recorded by 6262-03 Pressure Transducer); Uncertainty: 1. +/-0.05 (Setra) and 2. +/-0.45 (Licor), gives total +/-0.453 hPa; Researcher name: Are Olsen; Researcher institution: University of Bergen, Bjerknes Centre for Climate Research .
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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.
        maintenanceNote:  NCEI Accession 0190169 was revised and a new version of the archival package was published. Updates to existing archival packages may provide additional files or replace obsolete files. The latest version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession. Please see journal.txt in the /about directory for additional details on changes made.
        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:  barometric pressure sensor
            type:  barometric pressure sensor
            description:  instrument used to measure the atmospheric pressure.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  carbon dioxide (CO2) gas analyzer
            type:  carbon dioxide (CO2) gas analyzer
            description:  measures gaseous carbon dioxide Carbon dioxide gas analyzer has often been referred to as LI-COR, because a lot of researchers choose to use products manufactured by LI-COR incorporation for their carbon dioxide measurement. The main component of a carbon dioxide analyzer is a nondispersive infrared (NDIR) spectroscopic sensors to detect CO2 in a gaseous environment by its characteristic absorption. Carbon dioxide (CO2) gas analyzer works together with carbon dioxide (CO2) equilibrator (insttypes_id 184) to measure carbon dioxide in the water. To measure water carbon dioxide, water needs to be continuously supplied to a showerhead inside an equilibrator. As the water flows through the equilibrator chamber, dissolved carbon dioxide exchanges quickly with air in the headspace. This air is then sampled by the carbon dioxide analyzer to determine the mole fraction of CO2 in water.
        instrument:  (MI_Instrument)
            identifier:  (MD_Identifier)
                code:  showerhead equilibrator
            type:  showerhead equilibrator
            description:  extracts dissolved CO2 from water A carbon dioxide equilibrator is usually in the shape of a vertical tube, with a showerhead on the top, some headspace, a lot of beads to increase the surface exchange area between water and air, a water seal device at the bottom to allow water to overflow, but prevents air exchange between inside and outside. Carbon dioxide (CO2) equilibrator works together with carbon dioxide (CO2) gas analyzer (insttypes_id 183) to measure carbon dioxide in the water. To measure water carbon dioxide, water needs to be continuously supplied to a showerhead inside an equilibrator. As the water flows through the equilibrator chamber, dissolved carbon dioxide exchanges quickly with air in the headspace. This air is then sampled by the carbon dioxide analyzer to determine the mole fraction of CO2 in water.
        platform:  (MI_Platform)
            identifier:  (MD_Identifier)
                code:  NUKA ARCTICA
            description:  NUKA ARCTICA
            instrument: (missing)