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Search Criteria: dataset_idText : CLIVAR_A20_2003 AND ( datasource :( oceanbt ) )


Dataset_ID: CLIVAR_A20_2003
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: Sabine, Christopher
Organization: Pacific Marine Environmental Laboratory
Address: National Oceanic and Atmospheric Administration,7600 Sand Point Way NE,Seattle, WA 98115, USA
Phone: +1-206-526-4809
Email: chris.sabine@noaa.gov

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
Dataset Info:Dataset ID:CLIVAR_A20_2003
Submission Dates: Initial Submission: 20040111
Revised Submission: 20041221
Cruise Info:
  • Experiment:
    1. Experiment Name: CLIVAR/CO2 Repeat Hydrography, CARINA
Cruise:
  • Cruise ID: 316N20030922, (KN173/1)
  • Section: CLIVAR A20
  • Geographical Coverage:
    1. Geographical Region: Atlantic Ocean
Bounds:
NorthWestSouthEast
43.25-61.633336.98333-50.61667


Temporal Coverage: Start Date: 20030922 End Date: 20031023
Vessel:Vessel Name:Knorr
Vessel ID:316N
Country:USA
Vessel Owner:Woods Hole Oceanographic Institution (WHOI)
Data Center URL: http://cdiac.esd.ornl.gov/
Download Data Sets: CLIVAR Section A20_2003 Data

Variable Info: downup
Variable NameDescription of Variable
CTD temperature
CTD salnty
CTD oxygenUMOL/KG
Bottle salinity
Bottle oxygenUMOL/KG
NutrientsUMOL/KG
CFC11, CFC12, CFC113PMOL/KG
TCO2UMOL/KG
TALKUMOL/KG
DOCUMOL/KG
Method Description:
  • Total C02 Data:
    1. TCO2 Analysis Method: The TCO2 analysis was done by coulometry with two analytical systems (PMEL-1 and PMEL-2) used simultaneously on the cruise. Each system consisted of a coulometer (UIC, Inc.) coupled with a SOMMA.
    2. Standardization Technique:
      1. Technique Description: The coulometers were each calibrated by injecting aliquots of pure CO2 (99.995%) by means of an 8-port valve outfitted with two sample loops. The instruments were calibrated at the beginning and end of each station with a set of the gas loop injections.
      2. Sample Volume: 500-mL
      3. CRM Info:
        1. Correction Magnitude:
        2. Batch Number: 61
        3. CRM Analysis Info: Secondary standards were run throughout the cruise on each analytical system. These Certified Reference Materials (CRMs) are poisoned, filtered, and UV irradiated seawater supplied by Dr. A. Dickson of Scripps Institution of Oceanography (SIO. DIC data reported to the database have been recalculated using the bottle salinities, and, although insignificant for this cruise, corrected to the Batch 61 CRM value on a per instrument basis.
    3. Field Replicate Info:
    4. Poisoning Info: 0.2 mL
      1. Poisoning Correction Description:
      2. Poison Volume: 0.2 mL
    5. Accuracy Info: The overall accuracy and precision for the CRMs on both instruments combined was 1.0+/-1.7 umol/kg respectively (n=88).
    6. Method References: Johnson et al., 1985,1987,1993; Johnson, 1992.
    7. Citations:
  • Alkalinity:
    1. Curve Fitting Method: The titration systems used to determine TAALK of a Metrohm 665 Dosimat titrator and an Orion 720A pH meter that is controlled by a personal computer (Millero, et al., 1993b). Both the acid titrant in a water jacketed burette and the seawater sample in a water jacketed cell were controlled to a constant temperature of 25degC with a Neslab constant temperature bath.
    2. Type of Titration:
    3. Description of Other Titration:
    4. Cell Type: Closed
    5. CRM cale: Dickson
    6. Sample Volume: 50
    7. Magnitude of Blank Correction:
    8. Accuracy Info: The precision of the fit is better than 0.4 umol/kg when pK1 is allowed to vary and 1.5 umol/kg when pK1 is fixed.
    9. Method References: Millero, et al., 1993b
    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:
    2. pH Analysis Method:
    3. Calibration Info:
      1. Calibration Description:
      2. In Situ Temperature:
      3. Temperature of Analysis:
      4. Temperature Normalization:
      5. In Situ Pressure:
    4. Accuracy Info:
    5. Method References:
Method References:
Data Set References:
Citation: Feely R. A., C. L. Sabine, F. J. Millero, A. G. Dickson , R. A. Fine, C. A. Carlson, J. Toole,T. M. Joyce, W. M. Smethie, A. P. McNichol, and R. M. Key. 2008. Carbon Dioxide, Hydrographic, and Chemical Data Obtained During the R/V Knorr Repeat Hydrography Cruise in the Atlantic Ocean: CLIVAR CO2 Sections A20_2003 (22 September�20 October 2003) and A22_2003 (23 October�13 November, 2003). Ed. A. Kozyr. ORNL/CDIAC-154, NDP-089. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. Department of Energy, Oak Ridge, Tennessee, 46 pp. doi: 10.3334/CDIAC/otg.ndp089
Measurement Type: discrete measurement discrete data discrete measurements bottle measurement bottle data bottle measurements
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