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Search Criteria: dataset_idText : OACES93_A16N AND ( datasource :( oceanbt ) )


Dataset_ID: OACES93_A16N
Investigator(s) Name: Wanninkhof, Rik
Organization: NOAA/AOML
Address: 4301 Rickenbacker CausewayMiami, FL 33149USA
Phone: (305) 361-4379
Email: Rik.Wanninkhof@noaa.gov

Name: Bullister, John L.
Organization: NOAA/PMEL
Address: 7600 Sand Point Way NESeattle, WA 98115USA
Phone: (206) 526-6741
Email: John.L.Bullister@noaa.gov
Dataset Info:Dataset ID:OACES93_A16N
Submission Dates: Initial Submission: 19960203
Revised Submission: 20020303
Cruise Info:
  • Experiment:
    1. Experiment Name: OACES North Atlantic
Cruise:
  • Cruise ID: OACES93
  • Section: OACES93_A16N
  • Geographical Coverage:
    1. Geographical Region: Atlantic Ocean
Bounds:
NorthWestSouthEast
63.9-30-5.42-18.3


Temporal Coverage: Start Date: 19930704 End Date: 19930830
Vessel:Vessel Name:R/V Malcolm Baldrige
Vessel ID:3175
Country:USA
Vessel Owner:Department of Commerce, NOAA
Data Center URL: http://cdiac.esd.ornl.gov/
Download Data Sets: NOAA/AOML North Atlantic OACES/CO2-93 Cruise, Legs I,IIA,IIB

Variable Info: downup
Variable NameDescription of Variable
TemperatureDeg. C
Salinity
Oxygenumol/kg
Nitrateumol/kg
Nitriteumol/kg
Phosphateumol/kg
Silicateumol/kg
CFC-11, CFC-12pmol/kg
TCO2umol/kg
TALKumol/kg
pCO2uatm @ 20 Deg.C
Chlorophyll auG/L
pHspectrophotometric pH at 20 C
Method Description:
  • Total C02 Data:
    1. TCO2 Analysis Method: Two coulometers used AOML-1 and AOML-2, both equipped with SOMMA inlet system developed by K, Johnson.
    2. Standardization Technique:
      1. Technique Description:
      2. Sample Volume: 500 mL
      3. CRM Info:
        1. Correction Magnitude: AOML-1: +1.08 umol/kg; AOML-2: +1.68 umol/kg.
        2. Batch Number: 16 = 2034.54 +/- 0.91 umol/kg
        3. CRM Analysis Info: Av. value of CRM run on AOML-1: 2033.46 +/- 1.15 umol/kg, n=55;Av. value of CRM run on AOML-2: 2032.86 +/- 0.96 umol/kg, n=51.
    3. Field Replicate Info: Replicates were taken from the deepest Niskin sample and run at different times during the cell. No systematic difference between the replicates was observed. SOMMA AOML-1 had an average absolute difference from the mean of 1 umol/kg with a standard deviation of 1.9 umol/kg for 40 sets of triplicates.
    4. Poisoning Info: The correction factor used is 1.00037. 0.2 mL HgCl2
      1. Poisoning Correction Description: The correction factor used is 1.00037.
      2. Poison Volume: 0.2 mL HgCl2
    5. Accuracy Info:
    6. Method References: Johnson, K. M., and D. W. R. Wallace. 1992. The Single-operator Multiparameter Metabolic Analyzer for Total Carbon Dioxide with Coulometric Detection. DOE Research Summary No. 19. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, Oak Ridge, Tenn.
      Johnson, K. M., K. D. Wills, D. B. Butler, W. K. Johnson, and C. S. Wong. 1993. Coulometric total carbon dioxide analysis for marine studies: Maximizing the performance of an automated gas extraction system and coulometric detector. Marine Chemistry 44:167-87.
    7. Citations:
  • Alkalinity:
    1. Curve Fitting Method: The titration system used for TALK measurements consisted of Metrohm 665 Dosimat titrator and Orion 720A pH meter that controlled by a PC.
    2. Type of Titration:
    3. Description of Other Titration:
    4. Cell Type: Closed
    5. CRM cale: Dickson
    6. Sample Volume: 500 mL
    7. Magnitude of Blank Correction:
    8. Accuracy Info:
    9. Method References: Thurmond and Millero, 1982; Bradshaw and Brewer, 1988
    10. Citations:
  • pCO2 Data:
    1. Analysis:
      1. pCO2 Analysis Method: The discrete fCO2 system used was described in Chipman et al. (1993) and in Wanninkhof and Thoning (1993) and Chen et al. (1995). This system used LI-COR model 6262 non-dispersive infrared analyzer.
      2. Sample Volume: 500 mL
      3. Headspace_Volume: 60 mL
      4. Measurement_Temperature: 20 deg.C
      5. Temperature Normalization:
      6. Temperature Correction Method:
      7. Variable Reported: fCO2 at 20 deg.C and fCO2 at insitu temperature
      8. Gas: Dry
      9. Standard Gas Concentrations: 201.4, 354.1, 517.0, 804.5, 1012.2, and 1515 ppm.
      10. Frequency of Standardization: every 8-12 samples
    2. Field Replicate Info:
    3. Storage Method:
    4. Accuracy Info:
    5. Method References: Chipman, D.W., J. Marra, and T. Takahashi (1993): Primary production at 47N and 20W in the North Atlantic Ocean: A comparison between the 14C incubation method and mixed layer carbon budget observations. Deep-Sea Res. II, 40, 151B169.
      Wanninkhof, R., and K. Thoning (1993): Surface water fCO2 measurements using continuous and discrete sampling methods. Mar. Chem. 44, 189B204.
  • pH Data:
    1. pH Scale: Total pH scale
    2. pH Analysis Method: Spectrophotometric techniques of Clayton and Burne (1993)
    3. Calibration Info:
      1. Calibration Description: NA
      2. In Situ Temperature: NA
      3. Temperature of Analysis: 20 deg.C
      4. Temperature Normalization: NA
      5. In Situ Pressure: NA
    4. Accuracy Info:
    5. Method References: Clayton T.D., and R.H. Byrne (1993): Spectrophotometric seawater pH measurements: total hydrogen ion concentration scale calibration of m-cresol purple and at-sea results. Deep-Sea Res., 40, 2115B2129.
Method References:
Data Set References:
Citation: Wanninkhof, R., J. Bullister, E. Peltola. 1993. Carbon Dioxide, Hydrographic, and Chemical Data Obtained During the R/V Malcolm Baldrige North Atlantic OACES/CO2 Cruise, Legs I,IIA,IIB, WOCE Section A16N (04 July - 30 August, 1993). http://cdiac.ornl.gov/oceans/woce_a16n.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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