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Underway pCO2 Measurements in Surface Waters and the Atmosphere During R/V Xue Long CHINARE2012 Expedition in the west Arctic Ocean from 2012-07-17 to 2012-09-12 (NCEI Accession 0168338)

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The underway surface and atmospheric CO2 levels were measured in the west Arctic Ocean during the 5th Chinese National Arctic Research Expedition (CHINARE2012) from 2012-07-17 to 2012-09-12. The system was monitored and calibrated with three certified gas standards and a zero gas every 3 hours. The dataset was reduced by the MatLab program pCO2 Sys v126, following the procedure in Pierrot et al. (2009). The Accession 0168338 includes measurements of fugacity of CO2 (fCO2) in sea water at sea water temperature, fugacity of CO2 (fCO2) in atmosphere, sea surface temperature, sea surface salinity, atmospheric pressure, and delta fCO2 between sea water and atmosphere (fCO2w - fCO2a).
  • Cite as: Chen, Liqi; Sun, Heng; Chen, Baoshan; Ouyang, Zhangxian; Cai, Wei-Jun (2017). Underway pCO2 Measurements in Surface Waters and the Atmosphere During R/V Xue Long CHINARE2012 Expedition in the west Arctic Ocean from 2012-07-17 to 2012-09-12 (NCEI Accession 0168338). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5j964nm. Accessed [date].
gov.noaa.nodc:0168338
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Distributor NOAA National Centers for Environmental Information
+1-301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact NOAA National Centers for Environmental Information
ncei.info@noaa.gov
Time Period 2012-07-17 to 2012-09-12
Spatial Bounding Box Coordinates
West: -174.03
East: -162.74
South: 65
North: 81.94
Spatial Coverage Map
General Documentation
Associated Resources
Publication Dates
  • publication: 2017-11-18
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Historical archive - data has been stored in an offline storage facility
Data Update Frequency As needed
Purpose This dataset is available to the public for a wide variety of uses including scientific research and analysis.
Use Limitations
  • accessLevel: Public
  • 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.
Dataset Citation
  • Cite as: Chen, Liqi; Sun, Heng; Chen, Baoshan; Ouyang, Zhangxian; Cai, Wei-Jun (2017). Underway pCO2 Measurements in Surface Waters and the Atmosphere During R/V Xue Long CHINARE2012 Expedition in the west Arctic Ocean from 2012-07-17 to 2012-09-12 (NCEI Accession 0168338). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5j964nm. Accessed [date].
Cited Authors
Principal Investigators
Contributors
Resource Providers
Publishers
Acknowledgments
  • Funding Information: National Natural Science Foundation of China; US National Science Foundation (NSF) (41230529, 41476172, 41476173 and 41406221; NSF-ARC-0909330 and NSF PLR-1304337)
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Global Change Master Directory (GCMD) Science Keywords OCADS Study Type
  • Surface underway
Provider Keywords
  • CHINARE12
  • R/V Xue Long
Provider Variable Abbreviations
  • PRES_ATM@SSP
  • PRES_EQU
  • SSS
  • SST
  • TEMP_EQU
  • dfCO2
  • fCO2_ATM_interpolated
  • fCO2_SW@SST
  • xCO2_ATM_interpolated
  • xCO2_EQU
Data Center keywords NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Platform keywords NODC PLATFORM NAMES THESAURUS Global Change Master Directory (GCMD) Platform Keywords
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords Provider Geographic Names
  • Arctic Ocean
Project keywords NODC PROJECT NAMES THESAURUS Cruise ID
  • CHINARE12
EXPOCODE
  • 76XL20120717
Ocean Acidification Search Keywords
  • Ocean Carbon and Acidification Data System (OCADS) Project
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Chen, Liqi; Sun, Heng; Chen, Baoshan; Ouyang, Zhangxian; Cai, Wei-Jun (2017). Underway pCO2 Measurements in Surface Waters and the Atmosphere During R/V Xue Long CHINARE2012 Expedition in the west Arctic Ocean from 2012-07-17 to 2012-09-12 (NCEI Accession 0168338). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v5j964nm. Accessed [date].
Access Constraints
  • 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.
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.
Lineage information for: dataset
Processing Steps
  • 2017-11-18T03:32:05Z - NCEI Accession 0168338 v1.1 was published.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: pCO2 (fCO2) autonomous; Abbreviation: fCO2_SW@SST; Unit: micro-atmosphere; Observation type: surface underway; Measured or calculated: measured; Sampling instrument: underway water pump; Location of seawater intake: near seachest with ice grating (port side of Xuelong); Analyzing instrument: underway pCO2 GO-system; Detailed sampling and analyzing information: see Pierrot et al., 2009; Equilibrator type: Sprayhead above dynamic pool, no thermal jacket (shower head type equilibrator); Equilibrator volume: 0.95 L (0.4 L water, 0.55 L headspace); Is the equilibrator vented or not: No; Water flow rate: 1.5 - 2.5 L/min; Gas flow rate: 70 - 150 ml/min; Drying method for gas: Gas stream passes through a thermoelectric condenser (~5 deg C) and then through a Perma Pure (Nafion) dryer before reaching the analyzer (90% dry).; SEA CO2 gas detector manufacturer: LI-COR; SEA CO2 gas detector resolution: 0.01 microatmosphere; SEA CO2 gas detector uncertainty: 1 microatmospheres; Standardization frequency: every 3 hours; Standard gas concentration: 0, 244.25, 366.86, 546.98 ppm; At what temperature was pCO2 reported: in situ temperature; Uncertainty: 2 microatmosphere in fCO2_SW; Quality flag convention: 2=good, 3=questionable; Method reference: 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.
  • Parameter or Variable: Sea Surface Temperature; Abbreviation: SST; Unit: degree Celsius; Analyzing instrument: Seabird (SEB); Uncertainty: Accuracy: 0.01 degree Celsius; Precision: 0.001 degree Celsius.
  • Parameter or Variable: Sea Surface Salinity; Abbreviation: SSS; Unit: (none); Sampling instrument: Seabird (SEB-45); Uncertainty: Accuracy: 0.005 ; Precision: 0.0002.
  • Parameter or Variable: Atmospheric Pressure at the sea surface; Abbreviation: PRES_ATM@SSP; Unit: hPa.
  • Parameter or Variable: Temperature recorded from inside the equilibrator; Abbreviation: TEMP_EQU; Unit: degree Celsius.
  • Parameter or Variable: Pressure inside the equilibrator; Abbreviation: PRES_EQU; Unit: hPa.
  • Parameter or Variable: Mole fraction of carbon dioxide inside the equilibrator; Abbreviation: xCO2_EQU; Unit: ppm.
  • Parameter or Variable: Mole fraction of carbon dioxide in the atmosphere; Abbreviation: xCO2_ATM_interpolated; Unit: ppm.
  • Parameter or Variable: Fugacity of seawater carbon dioxide after corrected to the in-situ sea surface temperature; Abbreviation: fCO2_SW@SST; Unit: microatmosphere.
  • Parameter or Variable: Interpolated atmospheric fCO2; Abbreviation: fCO2_ATM_interpolated; Unit: microatmosphere.
  • Parameter or Variable: Delta fCO2 between sea water and atmosphere (fCO2w - fCO2a); Abbreviation: dfCO2; Unit: microatmosphere .
Acquisition Information (collection)
Instrument
  • Carbon dioxide (CO2) gas analyzer
  • Showerhead equilibrator
Platform
  • XUE LONG
Last Modified: 2024-02-09T00:10:56Z
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