Underway measurements metadata form

• Investigator:
  • Name: Wanninkhof, Dr. Rik H.
  • Organization: NOAA/AOML
  • Address:
    4301 Rickenbacker Causeway Miami, FL 33149
  • Phone: 305-361-4379
  • Email: Rik.Wanninkhof@noaa.gov
• Dataset Info:
  • Dataset ID: RHB2005
  • Submission Dates:
    • Initial Submission: 2009/11/18
    • Revised Submission:
• Cruise Info:
  • Experiment:
    • Experiment Name: CLIVAR A16S, NTAS Moorings, Ocean Explorations Lost City, Ocean Explorations Stepping Stone, Western Boundary Time Series, Stratus Mooring, TAO
    • Cruise:
      • Cruise ID: RB200501T-RB200506
      • Section: CLIVAR Transit Leg and Leg 1, NTAS Mooring Transit Leg and Leg 1, Sea Beam Patch Testing Leg 1, Ocean Explorations Legs 1 & 2, Western Boundary Time Series Transit Leg and Leg 1, Stratus Mooring Leg 1, TAO Leg 1
      • Geographical Coverage:
        • Geographical Region:
          Atlantic and Eastern Pacific Oceans
        • Bounds:
          • Westernmost Longitude: -125
            Degrees, Minutes, Seconds: E
          • Easternmost Longitude: -20
            Degrees, Minutes, Seconds: E
          • Northernmost Latitude: 45
            Degrees, Minutes, Seconds: N
          • Southernmost Latitude: -65
            Degrees, Minutes, Seconds: N
      • Temporal Coverage:
        • Start Date: 2004/12/29
        • End Date: 2005/11/25
      • Ports of Call:
        Valparaiso, Chile Punta Arenas, Chile Fortaleza, Brazil Bridgetown, Barbados Charleston, SC Woods Hole, MA Punta Delgada, Azores Miami, FL Rodman, Panama Arica, Chile
  • Vessel:
    • Vessel Name: R/V Ronald H. Brown
    • Vessel ID: R104
    • Country: U.S.A.
    • Vessel Owner: NOAA
• Variables Info:
  • Variable:
    • Variable Name: xCO2W_PPM
    • Description of Variable: ppm
  • Method Description:
    • Equilibrator Design:
      • Equilibrator type: Plexiglass cylinder based on a design by R. Weiss
      • Equilibrator volume:24
      • Water_Flow_Rate: 11
      • Headspace_Gas_Flow_Rate:0.2
      • Vented: Yes
    • Measurement Method: Infrared absorption of dry gas
    • Manufacturer of Calibration Gas: NOAA/ESRL - Boulder, CO
    • 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 the WMO scale. The uncertainty of the standards, based on pre and post cruise calibrations, is less than 0.05 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. Weiss, R. F., R. A. Jahnke and C. D. Keeling (1982) Seasonal effects of temperature and salinity on the partial pressure of CO2 in seawater. Nature 300: 511-513.
  • Additional Information:
    For more information about this data set see the master and individual read me files at http://www.aoml.noaa.gov/ocd/gcc/ rvbrown_data2005.php
  • Data Set References:
    
  • Citation:
    R. Wanninkhof, R. D. Castle, J. Shannahoff Underway pCO2 measurements aboard the R/V Ronald H. Brown. Website: http://www.aoml.noaa.gov/ocd/gcc/rvbrown_data2005.php
• Data Set Link:
  • URL: http://www.aoml.noaa.gov/ocd/gcc/ rvbrown_data2005.php
  • Label: AOML CO2 group underway pCO2 data for R/V Ronald H. Brown 2005
  • Link Note: