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Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the KNORR in the North Atlantic Ocean from 2001-06-27 to 2001-08-15 (NCEI Accession 0113568)

INVESTIGATORS:
Patricia L. Yager - UGA
Edward J. Carpenter -
Douglas G. Capone -

PACKAGE DESCRIPTION: This dataset includes chemical, discrete sample, physical and profile data collected from KNORR in the North Atlantic Ocean from 2001-06-27 to 2001-08-15 and retrieved during cruise CARINA/316N20010627 and MP-3. These data include ALKALINITY, DISSOLVED INORGANIC CARBON, HYDROSTATIC PRESSURE, Potential temperature (theta), SALINITY and WATER TEMPERATURE. The instruments used to collect these data include CTD and bottle. These data were collected by Patricia L. Yager of University of Georgia; School of Marine Programs and D. Capone and E. Carpenter [affiliation unknown] as part of the CARINA/316N20010627, MP-3 data set. The CARINA (CARbon dioxide IN the Atlantic Ocean) data synthesis project is an international collaborative effort of the EU IP CARBOOCEAN, and U.S. partners. It has produced a merged internally consistent dataset of open ocean subsurface measurements for biogeochemical investigations, in particular, studies involving the carbon system. The original focus area was the North Atlantic Ocean, but over time the geographic extent expanded and CARINA now includes data from the entire Atlantic, the Arctic Ocean, and the Southern Ocean.

CITE AS: Yager, Patricia L.; Michaels, Anthony F.; Capone, Douglas G. (2013). Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from the KNORR in the North Atlantic Ocean from 2001-06-27 to 2001-08-15 (NCEI Accession 0113568). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.carina_316n20010627. Accessed [date].


DATA PACKAGES RELATED TO THIS ONE:
none;
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0113568
NCEI DOI: https://doi.org/10.3334/cdiac/otg.carina_316n20010627
EXPOCODE: 316N20010627;
CRUISE ID: CARINA/316N20010627; MP-3;
SECTION/LEG: CARINA/316N20010627; MP-3;

TYPES OF STUDY:
Discrete measurement;Profile;

TEMPORAL COVERAGE:
START DATE: 2001-06-27
END DATE: 2001-08-15

SPATIAL COVERAGE:
NORTH: 29.948
WEST: -56.641
EAST: -23.597
SOUTH: 3.234

GEOGRAPHIC NAMES:
Atlantic Ocean;

PLATFORMS:
R/V Knorr (ID: 316N);

RESEARCH PROJECT(S):
none;

VARIABLES / PARAMETERS:

Dissolved Inorganic Carbon
Abbreviation: DIC
Observation type: discrete
In-situ / Manipulation / Response variable: In-situ observation
Measured or calculated: Calculated
Detailed sampling and analyzing information: Measured at UGA laboratory using a SOMMA (Single Operator Multi-Metabolic Analyzer) connected to a CO2 coulometer (UIC, Inc) interfaced to a PC. See Johnson et al., 1993; 1998.
Standardization description: The instrument was first calibrated using a standard CO2 gas (99.999%). Certified Reference Material (Dickson 2001) was run twice at the start of every day, after every ten samples, and at the end of the day. Unless daily drift was detected (rare), the we computed the average CRM for the day, calculated the ratio of the expected CRM value to the measured value, and multiplied all the data by this ratio. In the rare case of drift, we corrected to the nearest CRM.
CRM batch number: 50 55
Total alkalinity
Abbreviation: TA
Observation type: discrete
In-situ / Manipulation / Response variable: In-situ observation
Measured or calculated: Measured
Type of titration: Potentiometric titration using an automated burette with 0.1N HCl in 0.7 M NaCl
Cell type (open or closed): Open
Curve fitting method: Calculated using the modified gran approach (Dickson et al., 2003)
TA blank correction: none used
Uncertainty: CRMs were used as primary alkalinity reference standards to back calculate titration acid concentration. This forced the absolute accuracy of samples to CRM standards. Instrument precision (sR, based on duplicate runs of each CRM) = 1.440 ueq/kg. Sampling precision (sR, based on duplicate samples collected in series from the same Niskin bottle) = 2.393 ueq/kg.
Method reference: Dickson, A. G., J. D. Afghan, G. C. Anderson (2003). Reference materials for oceanic CO2 analysis: a method for the certification of total alkalinity. Marine Chemistry 80: 185-197. Cooley, S. R., and P. L. Yager (in press 2006). Physical and biological contributions to the western tropical North Atlantic Ocean carbon sink formed by the Amazon River Plume. J. Geophys. Res. Oceans.
CTDTMP
Abbreviation: CTDTMP
Unit: DEG_C
Controlled vocabulary name: WATER TEMPERATURE
In-situ / Manipulation / Response variable: in-situ
SALNTY
Abbreviation: SALNTY
Controlled vocabulary name: SALINITY
In-situ / Manipulation / Response variable: in-situ
TCARBN
Abbreviation: TCARBN
Unit: UMOL/KG
Controlled vocabulary name: DISSOLVED INORGANIC CARBON (DIC)
In-situ / Manipulation / Response variable: in-situ
ALKALI
Abbreviation: ALKALI
Unit: UMOL/KG
Controlled vocabulary name: total alkalinity
In-situ / Manipulation / Response variable: in-situ
PUBLICATIONS DESCRIBING THIS DATASET:
Cooley, S.R. and P.L. Yager, Physical and biological contributions to the western tropical North Atlantic Ocean carbon sink formed by the Amazon River Plume, J. Geophys. Res., 111, C8018, https://doi.org/10.1029/2005JC002954, 2006.
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:

SUBMITTED BY: Alex Kozyr (Alex.Kozyr@noaa.gov)

SUBMISSION DATE: 2013-10-02