Underway pCO2 Measurements in Surface Waters and the Atmosphere During R/V Xue Long Arctic CHINARE2010 Expedition in the North Pacific Ocean, Bering Sea and Arctic Ocean from 2010-07-09 to 2010-09-06 (NCEI Accession 0164193)
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title: Underway pCO2 Measurements in Surface Waters and the Atmosphere During R/V Xue Long Arctic CHINARE2010 Expedition in the North Pacific Ocean, Bering Sea and Arctic Ocean from 2010-07-09 to 2010-09-06 (NCEI Accession 0164193)
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abstract: This dataset includes Surface underway, chemical, meteorological and physical data collected from R/V Xue Long Arctic CHINARE2010 Expedition in the North Pacific Ocean, Bering Sea and Arctic Ocean from 2010-07-09 to 2010-09-06. These data include measurements of Mole fraction of CO2 in the equilibrator headspace (dry) at equilibrator temperature, in parts per million, mole fraction of CO2 measured in dry outside air, barometric pressure in the equilibrator headspace, barometric pressure, corrected to sea level, water temperature in equilibrator, sea surface temperature, sea surface salinity, fugacity of CO2 in sea water at SST and 100% humidity, and difference between sea water fCO2 and interpolated air fCO2. The instruments used to collect these data include carbon dioxide (CO2) gas analyzer and shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement.
purpose: The major objectives of this project is to provide a high quality measurements of atmospheric and sea surface fCO2, sea surface salinity, temperature, and other parameters, in the Arctic Ocean
credit: Funding Information: NOAA, State Ocean Administration (SOA) of China
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keyword: Arctic Ocean
keyword: Bering Sea
keyword: North Pacific Ocean
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otherConstraints: Cite as: Wanninkhof, Rik; Chen, Liqi; Cai, Wei-Jun; Gao, Zhongyong (2017). Underway pCO2 Measurements in Surface Waters and the Atmosphere During R/V Xue Long Arctic CHINARE2010 Expedition in the North Pacific Ocean, Bering Sea and Arctic Ocean from 2010-07-09 to 2010-09-06 (NCEI Accession 0164193). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.vos_xue_chinare2010. 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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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: Ho, D. T., Bliven, L. F., Wanninkhof, R., & Schlosser, P. (1997). The effect of rain on air-water gas exchange. Tellus B: Chemical and Physical Meteorology, 49(2), 149. https://doi.org/10.3402/tellusb.v49i2.15957
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title: Feely, R.A., R. Wanninkhof, H.B. Milburn, C.E. Cosca, M. Stapp, and P.P. Murphy, A new automated underway system for making high precision pCO2 measurements onboard research ships, Analytica Chim. Acta, 377, 185-191, 1998. https://doi.org/10.1016/S0003-2670(98)00388-2
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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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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: 2010-07-09
endPosition: 2010-09-06
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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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dataQualityInfo: (DQ_DataQuality)
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description: NCEI Accession 0164193 v1.1 was published.
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DateTime: 2017-07-26T23:47:05Z
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description: published 2017-07-26T23:47:05Z
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dataQualityInfo: (DQ_DataQuality)
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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 840; Detailed sampling and analyzing information: The mole fraction of CO2 in the headspace gas is measured using a non-dispersive infrared (NDIR) analyzer (LI-840 from LICOR); Equilibrator type: Spray head above dynamic pool, with thermal jacket; Equilibrator volume: 750 ml (850 ml headspace); Is the equilibrator vented or not: Vented; Water flow rate: 1.5 - 2.0 L/min; Gas flow rate: 70 - 150 ml/min; How was temperature inside the equilibrator measured: Hart Scientific model 1523 digital thermometer; How was pressure inside the equilibrator measured: External Setra 270 connected to the exit of the analyzer; 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: 0.01 uatm; SEA CO2 gas detector uncertainty: 2 uatm; 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: STANDARD CONCENTRATION(ppm) STD1 244.25 STD2 546.98 STD3 420.56 STD4 366.86; Standard gas uncertainty: 0.01 ppm; Water vapor correction method: Details of the data reduction are described in Pierrot, et.al. (2009).; Temperature correction method: Details of the data reduction are described in Pierrot, et.al. (2009).; 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: 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; Researcher name: Wei-Jun Cai; Researcher institution: University of Georgia.
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description: Parameter or Variable: Sea Surface Temperature; Abbreviation: SST_C; Unit: degrees celcius; Observation type: Surface Underway; Analyzing instrument: SBE 38, Seabird, Inc.; Detailed sampling and analyzing information: After sea water pump, ~3 m below sea surface; Uncertainty: Accuracy: 0.001C, Precision: 0.0003C; Researcher name: Wei-Jun Cai; Researcher institution: University of Georgia.
processStep: (LE_ProcessStep)
description: Parameter or Variable: Sea Surface Salinity; Abbreviation: SAL_permil; Observation type: Surface Underway; Analyzing instrument: SBE 45, Seabird, Inc.; Uncertainty: Accuracy: +/- 0.005; Precision: 0.0002; Researcher name: Wei-Jun Cai; Researcher institution: University of Georgia.
processStep: (LE_ProcessStep)
description: Parameter or Variable: Atmospheric Pressure; Abbreviation: PRES_ATM@SSP_hPa; Unit: hPa; Analyzing instrument: Vaisala, Model: PTB220; Uncertainty: Accuracy: +/- 0.15 hPa; Precision: 0.01 hPa; Researcher name: Wei-Jun Cai; Researcher institution: University of Georgia .
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metadataMaintenance: (MD_MaintenanceInformation)
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acquisitionInformation: (MI_AcquisitionInformation)
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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.
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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.
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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)