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Surface underway pCO2 measurements aboard the RRS Discovery during the Atlantic Meridional Transect (AMT21) cruise from 2011-10-03 to 2011-11-09 (NCEI Accession 0170365)


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            title:  Surface underway pCO2 measurements aboard the RRS Discovery during the Atlantic Meridional Transect (AMT21) cruise from 2011-10-03 to 2011-11-09 (NCEI Accession 0170365)
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                date:  2018-01-31
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                  Anchor:  DOI 10.7289/v5pz5733
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                  Anchor:  NCEI Accession ID 0170365
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/5117 Vassilis Kitidis
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1624 Plymouth Marine Laboratory
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/5117 Vassilis Kitidis
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        abstract:  This dataset includes surface underway data collected aboard the RRS Discovery during the Atlantic Meridional Transect (AMT21) cruise from 2011-10-03 to 2011-11-09. These data include partial pressure (or fugacity) of carbon dioxide - atmosphere, partial pressure (or fugacity) of carbon dioxide - water, sea surface salinity, sea surface temperature and barometric pressure. The instruments used to collect these data include carbon dioxide (CO2) gas analyzer, shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement. These data were collected by Vassilis Kitidis of Plymouth Marine Laboratory.
        purpose:  The major objectives of the measurements is to provide a high quality measurements of atmospheric and sea surface fCO2, sea surface salinity, temperature, and other parameters in the Atlantic Ocean.
        credit:  Funding Information: UK-NERC (Shelf Seas Biogeochemistry, NE/K002058/1)
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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/insttype/details/184 showerhead equilibrator
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            keyword:
              Anchor:  https://vocab.ices.dk/services/pox/GetCodeDetail/SHIPC/74E3 DISCOVERY (call sign: GLNE, ICES code: 74E3, 1963-2012)
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              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/a4202721-0cba-4fa1-853f-890f146b04f9 OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
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              Anchor:  https://gcmd.earthdata.nasa.gov/kms/concept/9ce6b6ba-8f9f-4585-9438-05619d768578 OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN
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                            description:  Global Change Master Directory (GCMD). 2023. GCMD Keywords, Version 17. 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:  North Atlantic Ocean
            keyword:  South Atlantic Ocean
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            otherConstraints:  Cite as: Kitidis, Vassilis (2018). Surface underway pCO2 measurements aboard the RRS Discovery during the Atlantic Meridional Transect (AMT21) cruise from 2011-10-03 to 2011-11-09 (NCEI Accession 0170365). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5pz5733. 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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            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:  Ribas-Ribas et al. 2014. Intercomparison of carbonate chemistry measurements on a cruise in northwestern European shelf seas. Biogeosciences. 11: 4339-4355
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                    date:  2014
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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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                    beginPosition:  2011-10-03
                    endPosition:  2011-11-09
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                orderingInstructions:  Contact NCEI for other distribution options and instructions.
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                description:  NCEI Accession 0170365 v1.1 was published.
                dateTime:
                  DateTime:  2018-01-31T23:47:09Z
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                        title:  NCEI Accession 0170365 v1.1
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                                    description:  published 2018-01-31T23:47:09Z
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    dataQualityInfo:  (DQ_DataQuality)
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                description:  Parameter or Variable: pCO2 (fCO2) autonomous; Abbreviation: pCO2_sw; Unit: uatm; Observation type: Surface underway; Measured or calculated: Measured; Sampling instrument: Seawater pump; Location of seawater intake: Hull; Analyzing instrument: Dartcom-PML LivepCO2; Detailed sampling and analyzing information: Non Dispersive IR Sensor; Equilibrator type: Headspace (vented); Equilibrator volume: 2.5 L; Is the equilibrator vented or not: Vented; Water flow rate: 1.6 L/min; Gas flow rate: 200 mL/min; Drying method for gas: Peltier drier to 20% humidity; SEA CO2 gas detector manufacturer: Licor, Inc; SEA CO2 gas detector model: LI-840; SEA CO2 gas detector resolution: Accuracy: 2 micro-atm fCO2; SEA CO2 gas detector uncertainty: Precision: 0.5 micro-atm fCO2; Standardization technique: Sensor calibration during deployment using 3 gas standards (nominally 250; 380 and 450 ppmv CO2 in synthetic air); Standard gas manufacturer: BOC gases Ltd.,; Standard gas concentration: nominally 250; 380 and 450 ppmv CO2 in synthetic air; At what temperature was pCO2 reported: In situ sea surface temperature; Method reference: Ribas-Ribas et al. 2014. Intercomparison of carbonate chemistry measurements on a cruise in northwestern European shelf seas. Biogeosciences. 11: 4339-4355; Researcher name: Vassilis Kitidis; Researcher institution: Plymouth Marine Laboratory.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Sea Surface Temperature; Abbreviation: SST_C; Unit: degrees celcius; Observation type: Surface Underway; Analyzing instrument: SBE 45 (serial #: 0229); Detailed sampling and analyzing information: Manufacturer: SeaBird Electronics; Uncertainty: Accuracy and Precision: 0.001C; Researcher name: Vassilis Kitidis; Researcher institution: Plymouth Marine Laboratory.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Sea Surface Salinity; Abbreviation: SSS; Observation type: Surface Underway; Sampling instrument: Intake salinity sensor, Seabird; Analyzing instrument: SBE 45 (serial #: 0229); Uncertainty: 0.002; Researcher name: Vassilis Kitidis; Researcher institution: Plymouth Marine Laboratory.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Atmospheric pressure at sea-surface pressure; Abbreviation: AtmPrs; Unit: hPa; Observation type: Underway; Analyzing instrument: PTB110 barometer, Vaisala; Uncertainty: 1 hPa; Researcher name: Vassilis Kitidis; Researcher institution: Plymouth Marine Laboratory .
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            organisationName:  NOAA National Centers for Environmental Information
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    acquisitionInformation:  (MI_AcquisitionInformation)
        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)
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                code:  RRS Discovery
            description:  Additional information from ICES for the vessel DISCOVERY from UNITED KINGDOM. Code : 74E3 Name : DISCOVERY Flag : UNITED KINGDOM - GB (ISO Country Code) Call Sign : GLNE Title : RRS Platform Class : 31 Research vessel IMO : 5090660 Commissioned Date : 1963 Decommissioned Date : 2012-12-18 Current Length : 90.2 Built : 1962 Notes : NERC research vessel. Rebuilt (including hull lengthening by 10m) in 1991-1992. Decommissioned in December 2012 for disposal in March 2013. She will be replaced by a new vessel of the same name. Additional Information Sources: - http://www.marine.gov.uk/discovery.htm General Comments: Additional info: http://en.wikipedia.org/wiki/RRS_Discovery_%281962%29 Previous information: Flag: United Kingdom Vessel Type: Research Vessel (Oceanographic) DOB: Dec 1962; re-built in 1991/92 IMO: 5090660 Royal Research Ship-Built
            instrument: (missing)