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Partial pressure of carbon dioxide, temperature, salinity and other variables collected from the surface underway observations using carbon dioxide gas analyzer, shower head equilibrator and other instruments from R/V Savannah in the North Atlantic Ocean, US East coast during the Georgia Coastal Ecosystems Long Term Ecological Research Cruises from 2014-04-02 to 2016-04-21 (NCEI Accession 0167308)


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            title:  Partial pressure of carbon dioxide, temperature, salinity and other variables collected from the surface underway observations using carbon dioxide gas analyzer, shower head equilibrator and other instruments from R/V Savannah in the North Atlantic Ocean, US East coast during the Georgia Coastal Ecosystems Long Term Ecological Research Cruises from 2014-04-02 to 2016-04-21 (NCEI Accession 0167308)
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                date:  2017-10-20
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                  Anchor:  DOI 10.7289/v547483x
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/4452 Wei-Jun Cai
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1477 University of Delaware
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1477 University of Delaware
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/person/details/4452 Wei-Jun Cai
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1477 University of Delaware
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                  Anchor:  https://www.ncei.noaa.gov/archive/archive-management-system/OAS/bin/prd/jquery/institution/details/1499 University of Delaware; College of Earth, Ocean, and Environment
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        abstract:  This dataset includes surface underway chemical, and physical data collected from R/V Savannah in the North Atlantic Ocean, US East coast from 2014-04-02 to 2016-04-21. These data include measurements of partial pressure of carbon dioxide (pCO2) in the equilibrator headspace (dry) at equilibrator temperature, barometric pressure in the equilibrator headspace, water temperature in equilibrator, sea surface temperature and sea surface salinity. The instruments used to collect these data include carbon dioxide (CO2) gas analyzer and shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement. These data were collected by Wei-Jun Cai and Janet J. Reimer of University of Delaware as part of R/V Savannah Georgia Coastal Ecosystems Long Term Ecological Research Cruises.
        purpose:  The major objectives of this Coastal project is to provide a high quality measurements of atmospheric and sea surface fCO2, sea surface salinity, temperature, and other parameters, in the East US coastal area
        credit:  Funding Information: National Science Foundation (Georgia Coastal Ecosystems Long Term Ecological Research Grant # OCE1237140)
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                    date:  2017-10-11
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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/309 SALINITY - SURFACE WATER
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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
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            otherConstraints:  Cite as: Cai, Wei-Jun; Reimer, Janet J. (2017). Partial pressure of carbon dioxide, temperature, salinity and other variables collected from the surface underway observations using carbon dioxide gas analyzer, shower head equilibrator and other instruments from R/V Savannah in the North Atlantic Ocean, US East coast during the Georgia Coastal Ecosystems Long Term Ecological Research Cruises from 2014-04-02 to 2016-04-21 (NCEI Accession 0167308). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v547483x. 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:  Pierrot, D., Neill, C., Sullivan, K., Castle, R., Wanninkhof, R., Lüger, H., Johannessen, T., Olsen, A., Feely, R. A., & Cosca, C. E. (2009). Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512-522. https://doi.org/10.1016/j.dsr2.2008.12.005
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                    individualName:  Pierrot, Denis
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                    individualName:  Castle, Robert
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                    individualName:  Wanninkhof, Rik
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                    individualName:  Lüger, Heike
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                    individualName:  Johannessen, Truls
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                    individualName:  Feely, Richard A.
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                    name:  Deep Sea Research Part II: Topical Studies in Oceanography
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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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                    date:  2022-04
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                otherCitationDetails:  [accessed 2024-02-08]
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                    beginPosition:  2014-04-02
                    endPosition:  2016-04-21
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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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                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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                description:  NCEI Accession 0167308 v1.1 was published.
                dateTime:
                  DateTime:  2017-10-20T23:52:16Z
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                        title:  NCEI Accession 0167308 v1.1
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                                    linkage: https://www.ncei.noaa.gov/archive/accession/0167308/1.1
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                                    name:  NCEI Accession 0167308 v1.1
                                    description:  published 2017-10-20T23:52:16Z
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                description:  Parameter or Variable: pCO2 (fCO2) autonomous; Abbreviation: pCO2; Unit: uatm; Observation type: Surface underway; Measured or calculated: Measured values xCO2(dry); Sampling instrument: sea water intake; Location of seawater intake: Wet lab; Analyzing instrument: Equilibrator-IR or CRDS or GC; Equilibrator type: Spray/shower; Equilibrator volume: 1 L; Is the equilibrator vented or not: Vented; Water flow rate: 2.0 L/min; Gas flow rate: 95 mL/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 7000; SEA CO2 gas detector resolution: 0.02 ppm; SEA CO2 gas detector uncertainty: 0.01 ppm; Standardization technique: The analyzer is calibrated every 4.3 hours with field standards that in turn were calibrated with primary standards that are directly traceable to the WMO scale. The zero gas is ultra-high purity air.; Standardization frequency: Every 4.3 hours; Standard gas manufacturer: Scott-Marrin, Inc.; Standard gas concentration: System was calibrated approximately every three hours. The gas is manufactured by Keen and the values of the standards are 151.5, 395.4, and 1969; Standard gas uncertainty: 0.01 ppm; At what temperature was pCO2 reported: In situ sea surface temperature; Uncertainty: 0.01C; Researcher name: Janet J. Reimer; Researcher institution: University of Delaware.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Sea Surface Temperature; Abbreviation: Equili_T(C); Unit: degrees celcius; Observation type: Temperature was measured within the equilibrator; Detailed sampling and analyzing information: After sea water pump, ~4.5 m below sea surface; Uncertainty: Accuracy: 0.001C, Precision: 0.001C; Researcher name: Kevin Sullivan; Researcher institution: NOAA/AOML.
            processStep:  (LE_ProcessStep)
                description:  Parameter or Variable: Sea Surface Salinity; Abbreviation: SAL; Observation type: Surface Underway; Analyzing instrument: SBE 45, Seabird, Inc.; Uncertainty: Precision: 0.01; Researcher name: Kevin Sullivan; Researcher institution: NOAA/AOML .
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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)
            identifier:  (MD_Identifier)
                code:  R/V Savannah
            description:  R/V; commissioned 2001; Skidaway Institute of Oceanography; active July 2007
            instrument: (missing)