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: RHB1999
- Submission Dates:
- Initial Submission: 2008/09/13
- Revised Submission: 2008/09/13
- Cruise Info:
- Experiment:
- Experiment Name: ACE, INDOEX, JASMINE, NAURU, NOPP, & TAO
- Cruise:
- Cruise ID: RB199901 - RB199914
- Section: ACE Legs 2 & 3, INDOEX Legs 1 - 3, JASMINE Leg 2, NAURU Leg 1, NOPP Legs 1 -3, TAO Leg 1
- Geographical Coverage:
- Geographical Region:
Atlantic, Indian, and Pacific Oceans - Bounds:
- Westernmost Longitude: -75
Degrees, Minutes, Seconds: E - Easternmost Longitude: -95
Degrees, Minutes, Seconds: E - Northernmost Latitude: 60
Degrees, Minutes, Seconds: N - Southernmost Latitude: -35
Degrees, Minutes, Seconds: N
- Temporal Coverage:
- Start Date: 1999/01/14
- End Date: 1999/12/02
- Ports of Call:
Norfolk, VA
Capetown, South Africa
Port Louis, Mauritius
Male, Maldives Islands
Singapore
Darwin, Australia
Kwajalein
Honolulu, HI
Dutch Harbor, AK
Seattle, WA
San Diego CA
- Vessel:
- Vessel Name: R/V Ronald H. Brown
- Vessel ID: R104
- Country: U.S.A.
- Vessel Owner: NOAA
- Variables Info:
- Variable:
- Variable Name: xCO2,w
- 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_data1999.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_data1999.php
- Data Set Link:
- URL: http://www.aoml.noaa.gov/ocd/gcc/rvbrown_data1999.php
- Label: AOML CO2 group underway pCO2 data for R/V Ronald H. Brown 1999
- Link Note: