Skip to main content

PH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from THALASSA in the North Atlantic Ocean from 2002-06-11 to 2002-07-11 (NCEI Accession 0113917)

INVESTIGATORS:
Fiz F. Pérez ORCID logo - Institute of Marine Research Vigo (IIM)
Herlé Mercier -
Marta Álvarez ORCID logo - Spanish Institute of Oceanography (IEO)

PACKAGE DESCRIPTION: This dataset includes discrete sample and profile data collected from THALASSA in the North Atlantic Ocean from 2002-06-11 to 2002-07-11. These data include DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, Potential temperature (theta), SALINITY, TOTAL ALKALINITY (TA), WATER TEMPERATURE, pH, phosphate and silicate. The instruments used to collect these data include Alkalinity titrator, CTD, bottle and spectrophotometer. These data were collected by H. Mercier of Institut Français de Recherche Pour L'Exploitation de la Mer and F. Pérez and M. Alvarez of Instituto de Investigaciones Marinas de Vigo as part of the CARINA_35TH20020611_OVIDE 2002 data set. CDIAC associated the following cruise ID(s) with this data set: OVIDE 2002 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: Álvarez, Marta; Mercier, Herlé (2013). PH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from THALASSA in the North Atlantic Ocean from 2002-06-11 to 2002-07-11 (NCEI Accession 0113917). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.carina_35th20020611. Accessed [date].


DATA PACKAGES RELATED TO THIS ONE:
none;
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0113917
NCEI DOI: https://doi.org/10.3334/cdiac/otg.carina_35th20020611
EXPOCODE: 35TH0602; 35TH20020611;
CRUISE ID: OVIDE 2002;
SECTION/LEG: WOCE A24;

TYPES OF STUDY:
Discrete measurement;Profile;

TEMPORAL COVERAGE:
START DATE: 2002-06-11
END DATE: 2002-07-11

SPATIAL COVERAGE:
NORTH: 59.819
WEST: -42.517
EAST: -9.459
SOUTH: 40.332

GEOGRAPHIC NAMES:
Atlantic Ocean;

PLATFORMS:
Thalassa (ID: 35TH);

RESEARCH PROJECT(S):
none;

VARIABLES / PARAMETERS:

Total alkalinity
Abbreviation: TA
Observation type: discrete
In-situ / Manipulation / Response variable: In-situ observation
Measured or calculated: Measured
Type of titration: potentiometric
Cell type (open or closed): Closed
Curve fitting method: TALK was measured using an automatic potentiometric titrator Titrino Metrohm, with a Metrohm 6.0233.100 combination glass electrode and a Pt-100 probe to check the temperature.
TA blank correction: see Table 3 in the report: the pH (Delta pH) correction applied to each batch and the mean value of the CRM determinations after applying the former correction.
Uncertainty: The standard deviation of all the TALK determinations for 23 bottles was 0.8 μmol/kg. TA was determined during the OVIDE cruise with an uncertainty of +/- 1 μmol/kg.
Method reference: Pérez, F.F. and F. Fraga. (1987). A precise and rapid analytical procedure for alkalinity determination. Mar. Chem., 21, 169-182
pH
Abbreviation: pH
pH scale: SWS @25deg.C
Observation type: discrete
In-situ / Manipulation / Response variable: In-situ observation
Measured or calculated: Measured
Temperature of pH measurement: 25
Detailed sampling and analyzing information: Spectrophotometrically, this method consists on adding a dye solution to the seawater sample, so that the ratio between two absorbances at two different wavelengths is proportional to the sample pH.
Uncertainty: Uncertainty of +/- 0.0014, mean and standard deviation of differences was 0.0016 +/- 0.0015 (n=32)
CTDTMP
Abbreviation: CTDTMP
Unit: DEG_C
Controlled vocabulary name: WATER TEMPERATURE
In-situ / Manipulation / Response variable: in-situ
CTDSAL
Abbreviation: CTDSAL
Controlled vocabulary name: SALINITY
In-situ / Manipulation / Response variable: in-situ
SALNTY
Abbreviation: SALNTY
Controlled vocabulary name: SALINITY
In-situ / Manipulation / Response variable: in-situ
CTDOXY
Abbreviation: CTDOXY
Unit: UMOL/KG
Controlled vocabulary name: DISSOLVED OXYGEN
In-situ / Manipulation / Response variable: in-situ
OXYGEN
Abbreviation: OXYGEN
Unit: UMOL/KG
Controlled vocabulary name: DISSOLVED OXYGEN
In-situ / Manipulation / Response variable: in-situ
SILCAT
Abbreviation: SILCAT
Unit: UMOL/KG
Controlled vocabulary name: silicate
In-situ / Manipulation / Response variable: in-situ
NITRAT
Abbreviation: NITRAT
Unit: UMOL/KG
Controlled vocabulary name: NITRATE
In-situ / Manipulation / Response variable: in-situ
PHSPHT
Abbreviation: PHSPHT
Unit: UMOL/KG
Controlled vocabulary name: phosphate
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
PH_SWS
Abbreviation: PH_SWS
Unit: @25C
Controlled vocabulary name: pH
In-situ / Manipulation / Response variable: in-situ
PH_TMP
Abbreviation: PH_TMP
Unit: DEG_C
Controlled vocabulary name: pH
In-situ / Manipulation / Response variable: in-situ
THETA
Abbreviation: THETA
Unit: DEG_C
Controlled vocabulary name: Potential temperature (theta)
In-situ / Manipulation / Response variable: in-situ
PUBLICATIONS DESCRIBING THIS DATASET:
Körtzinger A., Thomas H., Schneider B., Gronau N., Mintrop L., Duinker J.C., At-sea intercomparison of two newly designed underway pCO2 system - Encouraging results. Mar. Chem., 52: 133-145, 1996.
Pascale Lherminier, Herlé Mercier, Thierry Huck, Claire Gourcuff, Fiz F. Perez, Pascal Morin, Artem Sarafanov, Anastasia Falina (2010). The Atlantic Meridional Overturning Circulation and the subpolar gyre observed at the A25-OVIDE section in June 2002 and 2004, Deep Sea Research Part I: Oceanographic Research Papers, Volume 57, Issue 11, pp. 1374-1391, ISSN 0967-0637, https://doi.org/10.1016/j.dsr.2010.07.009.
Lueker, T.J., A.G. Dickson, C.D. Keeling, Ocean pCO2 calculated from dissolved inorganic carbon, alkalinity and equations for K1 and K2: validations based on laboratory measurements of CO2 in gas and seawater at equilibrium. Mar. Chem., 70, 105-119, 2000.
Pascale, L., H. Mercier, C. Gourcuff, M. Alvarez, S. Bacon, C. Kermabon, Transports across the 2002 Greenland-Portugal OVIDE section and comparison with 1997. J. Geophys. Res., 112(C7), C07003, https://doi.org/10.1029/2006JC003716, 2007.
Pérez, F.F. and M. Alvarez, 2002. Mesures de pH et d'alcalinite lors de la campagne OVIDE 2002, Final Scientific Rpt., Instituto de Investigaciones Marinas, (CSIC), C/ Eduardo Cabello, No 6, 36208 VIGO.
Pérez, F.F., M. Vazquez-Rodriguez, E. Louarn, X.A. Padín, H. Mercier and A.F. Ríos, Temporal variability of the anthropogenic CO2 storage in the Irminger Sea, Biogeosci, 4, 1-11, 2008.
García-Ibáñez, Maribel I., Paula C. Pardo, Lidia I. Carracedo, Herle Mercier, Pascale Lherminier, Aida F. Ríos, Fiz F Pérez, 2015: Structure, transports and transformations of the water masses in the Atlantic Subpolar Gyre. Progress in Oceanography, 135, 18-36, https://doi.org/10.1016/j.pocean.2015.03.009.
García-Ibáñez, M. I., Zunino, P., Frob, F., Carracedo, L. I., Ríos, A. F., Mercier, H., Olsen, A., and Pérez, F. F., 2016: Ocean acidification in the North Atlantic: controlling mechanisms, Biogeosciences, 13, 3701-3715. https://doi.org/10.5194/bg-13-3701-2016.
Marcos Fontela, Maribel I. García-Ibáñez, Dennis A. Hansell, Herle Mercier, Fiz F. Pérez, 2016: Dissolved Organic Carbon in the North Atlantic Meridional Overturning Circulation. Sci. Rep. 6, 26931; https://doi.org/10.1038/srep26931.
Zunino, P., P. Lherminier, H. Mercier, X. A. Padín, A. F. Ríos, and F. F. Pérez (2015), Dissolved inorganic carbon budgets in the eastern subpolar North Atlantic in the 2000s from in situ data, Geophys. Res. Lett., 42, 9853-9861, https://doi.org/10.1002/2015GL066243.
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:

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

SUBMISSION DATE: 2013-10-27

REVISION DATE: 2016-05-04

PREVIOUS VERSIONS: Version 1.1