INVESTIGATOR:
Rik Wanninkhof 
- NOAA Atlantic Oceanographic and Meteorological Laboratory (AOML)
PACKAGE DESCRIPTION: This dataset includes Surface underway, chemical, meteorological and physical data collected from NOAA Ship RONALD H. BROWN in the North Atlantic Ocean and South Atlantic Ocean from 2013-07-18 to 2013-10-02 and retrieved during cruise 33RO20130718 and 33RO20130803. These data include AIR-SEA DIFFERENCE - PARTIAL PRESSURE (OR FUGACITY) OF CARBON DIOXIDE, BAROMETRIC PRESSURE, Partial pressure (or fugacity) of carbon dioxide - atmosphere, Partial pressure (or fugacity) of carbon dioxide - water, SALINITY and SEA SURFACE TEMPERATURE. The instruments used to collect these data include Barometric pressure sensor, Carbon dioxide (CO2) gas analyzer, Shower head chamber equilibrator for autonomous carbon dioxide (CO2) measurement and thermosalinographs. These data were collected by Rik Wanninkhof of NOAA Atlantic Oceanographic and Meteorological Laboratory as part of the VOS_A16N_2013 and VOS_A16N_2013_Transit data set.
The International CLIVAR Global Ocean Carbon and Repeat Hydrography Program carries out a systematic and global re-occupation of select WOCE/JGOFS hydrographic sections to quantify changes in storage and transport of heat, fresh water, carbon dioxide (CO2), and related parameters.
CITE AS: Wanninkhof, Rik; Castle, Robert D.; Shannahoff, Jonathan (2014). Partial pressure (or fugacity) of carbon dioxide, salinity and other variables collected from Surface underway observations using Barometric pressure sensor, Carbon dioxide (CO2) gas analyzer and other instruments from NOAA Ship RONALD H. BROWN in the North Atlantic Ocean and South Atlantic Ocean from 2013-07-18 to 2013-10-02 (NCEI Accession 0117699). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.vos_a16n_2013. Accessed [date].
DATA PACKAGES RELATED TO THIS ONE:
none;
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0117699
NCEI DOI: https://doi.org/10.3334/cdiac/otg.vos_a16n_2013
EXPOCODE: 33RO20130718;
33RO20130803;
CRUISE ID: 33RO20130718;
33RO20130803;
TYPES OF STUDY: Surface underway;TEMPORAL COVERAGE:
START DATE: 2013-07-18
END DATE: 2013-10-02
SPATIAL COVERAGE:
WEST: -79.1408
EAST: -16.943
GEOGRAPHIC NAMES: North Atlantic;
PLATFORMS: Ronald H. Brown (ID: 33RO);
RESEARCH PROJECT(S):
none;
VARIABLES / PARAMETERS:
| xCO2_EQU_ppm |
|---|
| Abbreviation: |
xCO2_EQU_ppm |
| Unit: |
Mole fraction of CO2 in the equilibrator headspace (dry) at equilibrator temperature (ppm) |
| Controlled vocabulary name: |
partial pressure of carbon dioxide - water |
| In-situ / Manipulation / Response variable: |
in-situ |
| xCO2_ATM_ppm |
|---|
| Abbreviation: |
xCO2_ATM_ppm |
| Unit: |
Mole fraction of CO2 measured in dry outside air (ppm) |
| Controlled vocabulary name: |
Partial pressure (or fugacity) of carbon dioxide - atmosphere |
| In-situ / Manipulation / Response variable: |
in-situ |
| xCO2_ATM_interpolated_ppm |
|---|
| Abbreviation: |
xCO2_ATM_interpolated_ppm |
| Unit: |
Mole fraction of CO2 in outside air associated with each water analysis. These values are interpolated between the bracketing averaged good xCO2_ATM analyses (ppm) |
| Controlled vocabulary name: |
Partial pressure (or fugacity) of carbon dioxide - atmosphere |
| In-situ / Manipulation / Response variable: |
in-situ |
| PRES_EQU_hPa |
|---|
| Abbreviation: |
PRES_EQU_hPa |
| Unit: |
Barometric pressure in the equilibrator headspace (hectopascals) |
| In-situ / Manipulation / Response variable: |
in-situ |
| PRES_ATM@SSP_hPa |
|---|
| Abbreviation: |
PRES_ATM@SSP_hPa |
| Unit: |
Barometric pressure measured outside, corrected to sea level (hectopascals) |
| Controlled vocabulary name: |
BAROMETRIC PRESSURE |
| In-situ / Manipulation / Response variable: |
in-situ |
| TEMP_EQU_C |
|---|
| Abbreviation: |
TEMP_EQU_C |
| Unit: |
Water temperature in equilibrator (degrees Celsius) |
| In-situ / Manipulation / Response variable: |
in-situ |
| SST_C |
|---|
| Abbreviation: |
SST_C |
| Unit: |
Sea surface temperature (degrees Celsius) |
| Controlled vocabulary name: |
SEA SURFACE TEMPERATURE |
| In-situ / Manipulation / Response variable: |
in-situ |
| SAL_permil |
|---|
| Abbreviation: |
SAL_permil |
| Unit: |
Sea surface salinity on Practical Salinity Scale (permil) |
| Controlled vocabulary name: |
SALINITY |
| In-situ / Manipulation / Response variable: |
in-situ |
| fCO2_SW@SST_uatm |
|---|
| Abbreviation: |
fCO2_SW@SST_uatm |
| Unit: |
Fugacity of CO2 in sea water at SST and 100% humidity (microatmospheres) |
| Controlled vocabulary name: |
partial pressure of carbon dioxide - water |
| In-situ / Manipulation / Response variable: |
in-situ |
| fCO2_ATM_interpolated_uatm |
|---|
| Abbreviation: |
fCO2_ATM_interpolated_uatm |
| Unit: |
Fugacity of CO2 in air corresponding to the interpolated xCO2 at SST and 100% humidity (microatmospheres) |
| Controlled vocabulary name: |
Partial pressure (or fugacity) of carbon dioxide - atmosphere |
| In-situ / Manipulation / Response variable: |
in-situ |
| dfCO2_uatm |
|---|
| Abbreviation: |
dfCO2_uatm |
| Unit: |
Sea water fCO2 minus interpolated air fCO2 (microatmospheres) |
| In-situ / Manipulation / Response variable: |
in-situ |
| WOCE_QC_FLAG |
|---|
| Abbreviation: |
WOCE_QC_FLAG |
| Unit: |
Quality control flag for fCO2 values (2=good, 3=questionable) |
| In-situ / Manipulation / Response variable: |
in-situ |
| QC_SUBFLAG |
|---|
| Abbreviation: |
QC_SUBFLAG |
| Unit: |
Quality control subflag for fCO2 values, provides explanation when QC flag=3 |
| In-situ / Manipulation / Response variable: |
in-situ |
PUBLICATIONS DESCRIBING THIS DATASET: 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.
Pierrot, D., Neill, C., Sullivan, K., Castle, R., Wanninkhof, R., Lüger, H., Johannessen, T., Olsen, A., Feely, R. A., & Cosca, C. E. (2009). Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512-522. https://doi.org/10.1016/j.dsr2.2008.12.005
Wanninkhof, R., & Thoning, K. (1993). Measurement of fugacity of CO2 in surface water using continuous and discrete sampling methods. Marine Chemistry, 44(2–4), 189–204. https://doi.org/10.1016/0304-4203(93)90202-y
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: none;
FUNDING AGENCY: NOAA Climate Observation Office/Climate Observations Division
PROJECT TITLE:
PROJECT ID:
SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)
SUBMISSION DATE: 2014-04-22
