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Comparison of Inorganic Carbon System Parameters Measured in the Atlantic Ocean from 1990 to 1998 and Recommended Adjustments, CDIAC-140
Entry ID: CDIAC_IC-140

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Summary
Abstract: As part of the global synthesis effort sponsored by the Global Carbon Cycle project of the National Oceanic and Atmospheric Administration (NOAA) and U.S. Department of Energy, a comprehensive comparison was performed of inorganic carbon parameters measured on oceanographic surveys carried out under auspices of the Joint Global Ocean Flux Study and related programs. Many of the cruises were performed as part of the World Hydrographic Program of the World Ocean Circulation Experiment and the NOAA Ocean-Atmosphere Carbon Exchange Study. Total dissolved inorganic carbon (DIC), total alkalinity (TAlk), fugacity of CO2, and pH data from twenty-three cruises were checked to determine whether there were systematic offsets of these parameters between cruises. The focus was on the DIC and TAlk state variables. Data quality and offsets of DIC and TAlk were determined by using several different techniques. One approach was based on crossover analyses, where the deep-water concentrations of DIC and TAlk were compared for stations on different cruises that were within 100 km of each other. Regional comparisons were also made by using a multiple-parameter linear regression technique in which DIC or TAlk was regressed against hydrographic and nutrient parameters. When offsets of greater than 4 µmol/kg were observed for DIC and/or 6 µmol/kg were observed for TAlk, the data taken on the cruise were closely scrutinized to determine whether the offsets were systematic. Based on these analyses, the DIC data and TAlk data of three cruises were deemed of insufficient quality to be included in the comprehensive basinwide data set. For several of the cruises, small adjustments in TAlk were recommended for consistency with other cruises in the region. After these adjustments were incorporated, the inorganic carbon data from all cruises along with hydrographic, chlorofluorocarbon, and nutrient data were combined as a research-quality product for the scientific community.

Related URL
Link: View Related Information
Description: CDIAC WOCE carbon-related hydrographic data


Link: View Related Information
Description: Complete dcumentation for CDIAC-140


Geographic Coverage
 N: 67.0 S: -60.0  E: 20.0  W: -10.0

Data Set Citation
Dataset Originator/Creator: Rik Wanninkhof, Tsung-Hung Peng, Betty Huss, Christopher L. Sabine, Kitack Lee
Dataset Title: Comparison of Inorganic Carbon System Parameters Measured in the Atlantic Ocean from 1990 to 1998 and Recommended Adjustments
Dataset Release Date: 2003
Dataset Release Place: Oak Ridge, TN
Dataset Publisher: Carbon Dioxide Information Analysis Center
Issue Identification: CDIAC-140
Online Resource: http://cdiac.esd.ornl.gov/oceans/aoml/cdiac_140.html


Temporal Coverage
Start Date: 1990-01-01
Stop Date: 1998-12-31


Location Keywords
OCEAN > ATLANTIC OCEAN
OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
OCEAN > ATLANTIC OCEAN > SOUTH ATLANTIC OCEAN
OCEAN > SOUTHERN OCEAN
GEOGRAPHIC REGION > POLAR


Science Keywords
OCEANS >OCEAN CHEMISTRY >ALKALINITY >TOTAL ALKALINITY    [Definition]
OCEANS >OCEAN CHEMISTRY >CARBON    [Definition]
OCEANS >OCEAN CHEMISTRY >CARBON DIOXIDE >FUGACITY OF CO2    [Definition]
OCEANS >OCEAN CHEMISTRY >DISSOLVED GASES >DISSOLVED INORGANIC CARBON    [Definition]
OCEANS >OCEAN CHEMISTRY >INORGANIC CARBON    [Definition]
OCEANS >OCEAN CHEMISTRY >PH    [Definition]


Platform
SHIPS    [Information]


Project
JGOFS >Joint Global Ocean Flux Study, IGBP    [Information]
WOCE >World Ocean Circulation Experiment    [Information]
WHP >World Hydrographic Program    [Information]
OACES >Ocean-Atmosphere Carbon Exchange Study    [Information]


Keywords
TAlk
total alkalinity
fugacity of CO2
fCO2
DIC
carbon cycle
CO2
WOCE
JGOFS
WHP
OACES
NOAA


Data Set Progress
COMPLETE


Originating Center
CDIAC


Data Center
Carbon Dioxide Information Analysis Center, Environmental Sciences Division, Oak Ridge National Laboratory, U. S. Department of Energy    [Information]
Data Center URL: http://cdiac.ornl.gov/
Dataset ID: CDIAC-140

Data Center Personnel
Name: CARBON DIOXIDE INFORMATION ANALYSIS CENTER
Fax: (865) 574-2232
Contact Address:
Carbon Dioxide Information Analysis Center (CDIAC)
Oak Ridge National Laboratory
P.O.. Box 2008
City: OAK RIDGE
Province or State: TENNESSEE
Postal Code: 37831-6335
Country: USA



Distribution
Distribution_Media: online WWW
Distribution_Format: ascii
Fees: None


Personnel
RIK WANNINKHOF
Role: INVESTIGATOR
Email: wanninkhof at aoml.noaa.gov
Contact Address:
NOAA
Atlantic Oceanographic and Meteorological Laboratory
City: Miami
Province or State: Florida
Postal Code: 33149
Country: USA


TSUNG-HUNG PENG
Role: INVESTIGATOR
Email: peng at aoml.noaa.gov
Contact Address:
NOAA
Atlantic Oceanographic and Meteorological Laboratory
City: Miami
Province or State: Florida
Postal Code: 33149
Country: USA


BETTY HUSS
Role: INVESTIGATOR
Contact Address:
NOAA
Atlantic Oceanographic and Meteorological Laboratory
City: Miami
Province or State: Florida
Postal Code: 33149
Country: USA


CHRISTOPHER L. SABINE
Role: INVESTIGATOR
Email: chris.sabine at noaa.gov
Contact Address:
NOAA/Pacific Marine Environmental Laboratory
7600 Sand Point Way NE
City: Seattle
Province or State: WA
Postal Code: 98115
Country: USA


Publications/References
A complete set of references can be found at:
http://cdiac.esd.ornl.gov/oceans/aoml/refs140.html

Creation and Review Dates
DIF Creation Date: 2003-07-11
Last DIF Revision Date: 2016-05-20

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