Underway measurements metadata form

• Investigator:
  • Name: Wanninkhof, Dr. Rik H.
  • Organization: NOAA/AOML
  • Address:
    4301 Rickenbacker Causeway Miami, Florida 33149
  • Phone: (305)361-4379
  • Email: Rik.Wanninkhof@noaa.gov
• Dataset Info:
  • Dataset ID: CLIVAR 2008 I6S
  • Submission Dates:
    • Initial Submission: 2008/08/13
    • Revised Submission: 2008/08/13
• Cruise Info:
  • Experiment:
    • Experiment Name: CLIVAR Indian Ocean (I6S) 2008 Cruise
    • Cruise:
      • Cruise ID: 33RR20080204
      • Section: I6S
      • Geographical Coverage:
        • Geographical Region:
          The cruise departed from Durban, South Africa entering the southward-flowing Agulhas Current and traveled due south along a transect coinciding with Longitude 30 East into the Antartic Circumpolar Current down to the ice edge at 70 S returning to Cape Town, South Africa.
        • Bounds:
          • Westernmost Longitude: 20
            Degrees, Minutes, Seconds: E
          • Easternmost Longitude: 35
            Degrees, Minutes, Seconds: E
          • Northernmost Latitude: -30
            Degrees, Minutes, Seconds: N
          • Southernmost Latitude: -70
            Degrees, Minutes, Seconds: N
      • Temporal Coverage:
        • Start Date: 2008/02/05
        • End Date: 2008/03/14
      • Ports of Call:
        Durban, South Africa Cape Town, South Africa
  • Vessel:
    • Vessel Name: R/V Roger Revelle
    • Vessel ID: CCF6354XF
    • Country: USA
    • Vessel Owner: Scripps Institution of Oceanography
• Variables Info:
  • Variable:
    • Variable Name: JD_GMT
    • Description of Variable: decimal year day
  • Method Description:
    • Equilibrator Design:
      • Equilibrator type: Plexiglass cylinder with a 1 liter headspace
      • Equilibrator volume:2 liters
      • Water_Flow_Rate: 1.5
      • Headspace_Gas_Flow_Rate:0.2
      • Vented: Yes
    • Measurement Method: Infrared absorption of dry gas
    • Manufacturer of Calibration Gas: NOAA/ESRL - Boulder, Colorado
    • C0₂ Sensors:
      • Manufacturer: LI-COR
      • Model: 6251
      • Environmental Control:
        Air-conditioned laboratory
      • Resolution: Better than 0.1 ppm
      • Uncertainty: xCO2 measurements are accurate to 0.1 ppm, fCO2 measurements are accurate to 0.2 ppm.
      • Calibration:
        The standard gases are directly traceable to WMO scale. The uncertainty of the standards, based on pre and post cruise calibrations, is less than 0.5 ppm.
    • Other sensors:
      • Manufacturer:
      • Model:
      • Resolution:
      • Calibration:
        
    • Method References:
      DOE (1994). Handbook of methods for the analysis of the various parameters of the carbon dioxide system in sea water; version 2. DOE. Feely, R. A., R. Wanninkhof, H. B. Milburn, C. E. Cosca, M. Stapp and P. P. Murphy (1998). A new automated underway system for making high precision pCO2 measurements onboard research ships. Analytica Chim. Acta 377: 185-191. Ho, D. T., R. Wanninkhof, J. Masters, R. A. Feely and C. E. Cosca (1997). Measurement of underway fCO2 in the Eastern Equatorial Pacific on NOAA ships BALDRIGE and DISCOVERER, NOAA data report ERL AOML-30, 52 pp., NTIS Springfield. Wanninkhof, R. and K. Thoning (1993). Measurement of fugacity of CO2 in surface water using continuous and discrete sampling methods. Mar. Chem. 44(2-4): 189-205. Weiss, R. F. (1970). The solubility of nitrogen, oxygen and argon in water and seawater. Deep-Sea Research 17: 721-735. Weiss, R. F. (1974). Carbon dioxide in water and seawater: the solubility of a non-ideal gas. Mar. Chem. 2: 203-215. Takahashi, T., J. Olafsson, J. G. Goddard, D. W. Chipman, and S. C. Sutherland (1993). Seasonal variation of CO2 and nutrients in the high-latitude surface oceans: a comparative study, Global Biogeochem. Cycles, 7, 843-878.
  • Additional Information:
    For more information about this dataset see the readme file at: http://www.aoml.noaa.gov/ocd/gcc/clivari6s/
  • Data Set References:
    
  • Citation:
    These data are made freely available to the public and the scientific community in the belief that their wide dissemination will lead to greater understanding and new scientific insights. The availability of these data does not constitute publication of the data. We rely on the ethics and integrity of the user to assure that the AOML ocean carbon group receives fair credit for our work. Please consult with us prior to use so we can insure that the quality and limitations of the data are accurately represented.
• Data Set Link:
  • URL: http://www.aoml.noaa.gov/ocd/gcc/clivari6s/
  • Label: AOML CO2 group underway pCO2 data for the R/V Roger Revelle 2008
  • Link Note: