OCEAN CDIAC's Ocean CO2 Data Program
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Dataset_ID: WOCE_P14SP15S
Investigator(s) Name: Feely, Richard A.
Organization: NOAA/PMEL
Address: 7600 Sand Point Way NE,Seattle, WA 98115
Phone: 1(206) 526-6214
Email: Richard.A.Feely@noaa.gov

Name: Millero, Frank J.
Organization: RSMAS/MAC
Address: University of Miami,4600 Rickenbacker Causeway,Miami, FL 33149
Phone: (305) 361-4707
Email: fmillero@rsmas.miami.edu

Name: Dickson, Andrew
Organization: Scripps Institution of Oceanography
Address: University of California, San Diego,9500 Gilman Drive,La Jolla, CA 92093-0244, USA
Phone: +1-858-822-2990
Email: adickson@ucsd.edu

Name: Wanninkhof, Rik
Organization: NOAA/AOML
Address: 4301 Rickenbacker CausewayMiami, FL 33149
Phone: (305) 361-4379
Email: Rik.Wanninkhof@noaa.gov
Dataset Info:Dataset ID:WOCE_P14SP15S
Submission Dates: Initial Submission: 20040614
Revised Submission: 20040614
Cruise Info:
  • Experiment:
    1. Experiment Name: WOCE
Cruise:
  • Cruise ID: 31DSCG96_1,2
  • Section: WOCE_P14SP15S
  • Geographical Coverage:
    1. Geographical Region: Pacific Ocean
Bounds:
NorthWestSouthEast
1146.72-69.23-166.22


Temporal Coverage: Start Date: 19960105 End Date: 19960310
Vessel:Vessel Name:R/V Discoverer
Vessel ID:31DS
Country:U.S.A.
Vessel Owner:Department of Commerce, NOAA
Data Center URL: http://cdiac.esd.ornl.gov/
Download Data Sets: Discrete measurements from WOCE P14S/P15S Section

Variable Info: downup
Variable NameDescription of Variable
CTD PressureDBAR
CTD Temperature
CTD Salinity
Bottle Salinity
CTD OxygenUMOL/KG
Bottle OxygenUMOL/KG
SilicateUMOL/KG
NitrateUMOL/KG
NitriteUMOL/KG
PhosphateUMOL/KG
CFC-11PMOL/KG
CFC-12PMOL/KG
delta C14/MILLE
delta C13/MILLE
TCO2UMOL/KG
pCO2UATM
TALKUMOL/KG
pH
pCO2 Temperaturedegree C
pH Temperaturedegree C
C14 Error/MILLE
C13 Error/MILLE
Method Description:
  • Total C02 Data:
    1. TCO2 Analysis Method: The analysis was done by coulometry; two analytical systems were used simultaneously on the cruise, each consisting of a coulometer (UIC, Inc.) coupled with a SOMMA (Single Operator Multiparameter Metabolic Analyzer) inlet system developed by Ken Johnson (Johnson et al., 1985,1987,1993; Johnson, 1992) of Brookhaven National Laboratory (BNL).
    2. Standardization Technique:
      1. Technique Description: Samples were drawn from the PVC bottles into cleaned, precombusted 500-mL Pyrex(tm) bottles using Tygon(tm) tubing according to procedures outlined in the Handbook of Methods for CO2 Analysis (DOE, 1994). Bottles were rinsed once and filled from the bottom, overflowing half a volume, and care was taken not to entrain any bubbles. The tube was pinched off and withdrawn, creating a 5-mL headspace, and 0.2 mL of saturated HgCl2 solution was added as a preservative.
      2. Sample Volume: 500 mL
      3. CRM Info:
        1. Correction Magnitude:
        2. Batch Number: 29
        3. CRM Analysis Info: CRMs (Batch 29) were provided by Dr. Andrew Dickson (SIO), and was analyzed on both instruments over the duration of the cruise. The CRM certified value was 1902.54 +/-1.05 (n=14).
    3. Field Replicate Info: Replicate measurements from different PVC bottles tripped at the same depth, along with replicate measurements from the same PVC bottle was within +/-1.9 µmol/kg DIC.
    4. Poisoning Info: 0.2 mL of saturated HgCl2 solution was added as a preservative 0.2 mL
      1. Poisoning Correction Description: 0.2 mL of saturated HgCl2 solution was added as a preservative
      2. Poison Volume: 0.2 mL
    5. Accuracy Info: The overall accuracy and precision for the CRMs on both instruments combined was -1.1 +/-0.9 (n=153).
    6. Method References: Johnson et al., 1985,1987,1993; Johnson, 1992DOE, 1994Wilke, 1993
    7. Citations:
  • Alkalinity:
    1. Curve Fitting Method:
    2. Type of Titration:
    3. Description of Other Titration:
    4. Cell Type: Open
    5. CRM cale: Millero
    6. Sample Volume: 200 mL
    7. Magnitude of Blank Correction:
    8. Accuracy Info: The volume of HCl delivered to the cell is traditionally assumed to have a small uncertainty (Dickson, 1981) and is equated with the digital output of the titrator. Calibrations of the Dosimat(tm) burettes with Milli Q(tm) water at 25C indicated that the systems deliver 3.000 mL (the value for a titration of seawater) to a precision of 0.0004 mL. This uncertainty resulted in an error of 0.4 µmol/kg in TA.
    9. Method References: Millero et al., 1993Bradshaw et al. (1988), Dickson, 1981Taylor and Smith, 1959; Marinenko and Taylor, 1968
    10. Citations:
  • pCO2 Data:
    1. Analysis:
      1. pCO2 Analysis Method:
      2. Sample Volume:
      3. Headspace_Volume:
      4. Measurement_Temperature:
      5. Temperature Normalization:
      6. Temperature Correction Method:
      7. Variable Reported:
      8. Gas:
      9. Standard Gas Concentrations:
      10. Frequency of Standardization:
    2. Field Replicate Info:
    3. Storage Method:
    4. Accuracy Info:
    5. Method References:
  • pH Data:
    1. pH Scale: total hydrogen ion concentration ([H+]t) scale, in mol/kg soln.
    2. pH Analysis Method: Seawater pH was measured using a three-wavelength spectrophotometric procedure (Byrne, 1987) and the indicator calibration of Clayton and Byrne (1993). The indicator was a 8.0-mM solution of Kodak(tm) m-cresol purple sodium salt (C21H17O5Na) in a 10% ethanol solution; the absorbance ratio of the concentrated indicator solution (RI = 578A/434A) was 1.00. All absorbance ratio measurements were obtained in the thermostatted (25.0 +/- 0.05°C) cell compartments of HP 8453 diode array spectrophotometers. Periodically the spectrophotometric cells were cleaned with a 1 N HCl solution to preclude biological growth.
    3. Calibration Info:
      1. Calibration Description: Seawater pH was measured using a three-wavelength spectrophotometric procedure (Byrne, 1987) and the indicator calibration of Clayton and Byrne (1993).
      2. In Situ Temperature: (25.0 +/- 0.05°C)
      3. Temperature of Analysis: 25 degree C
      4. Temperature Normalization: 25
      5. In Situ Pressure: ?
    4. Accuracy Info:
    5. Method References: Byrne, 1987Clayton and Byrne (1993)
Method References:
Data Set References:
Citation: Feely, R., F. Millero, A. Dickson, R. Eanninkhof. 1996. Hydrographic, Chemical and Carbon Data Obtained During the R/V Discoverer cruise in the Pacific Ocean during WOCE Section P14S/P15S (EXPOCODE 31DSCG96_1,2), (05 January - 10 March, 1996). http://cdiac.ornl.gov/oceans/woce_p15s.html. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, US Department of Energy, Oak Ridge, Tennessee.
Measurement Type: discrete measurement discrete data discrete measurements bottle measurement bottle data bottle measurements
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