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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 2008-06-10 to 2008-07-11 (NCEI Accession 0110257)

INVESTIGATORS:
Aída F. Ríos - Institute of Marine Research Vigo (IIM)
Herlé Mercier - Laboratoire de Physique des Oceans

PACKAGE DESCRIPTION: This dataset includes chemical, discrete sample, physical and profile data collected from THALASSA in the North Atlantic Ocean from 2008-06-10 to 2008-07-11. 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 Aida F. Ríos of Instituto de Investigaciones Marinas de Vigo as part of the CLIVAR_OVIDE_2008 data set. CDIAC associated the following cruise ID(s) with this data set: OVIDE_08 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: Vázquez-Rodríguez, Marcos; Mercier, Herlé; Ferron, Bruno; Branellec, Pierre; Lherminier, Pascale (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 2008-06-10 to 2008-07-11 (NCEI Accession 0110257). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.clivar_ovide_2008. Accessed [date].


DATA PACKAGES RELATED TO THIS ONE:
none;
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0110257
NCEI DOI: https://doi.org/10.3334/cdiac/otg.clivar_ovide_2008
EXPOCODE: 35TH20080610;
CRUISE ID: OVIDE_08;
SECTION/LEG: A25/A24;

TYPES OF STUDY:
Discrete measurement;Profile;

TEMPORAL COVERAGE:
START DATE: 2008-06-10
END DATE: 2008-07-11

SPATIAL COVERAGE:
NORTH: 59.898
WEST: -42.769
EAST: -9.463
SOUTH: 40.331

GEOGRAPHIC NAMES:
Atlantic Ocean;

PLATFORMS:
R/V 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
Curve fitting method: TALK was measured using an automatic potentiometric titrator Titrando 809 Metrohm, with a Metrohm 6.0233.100 combination glass electrode and a Pt-1000 probe to check the temperature.
TA blank correction: none (HCl is made with MilliQ water)
Uncertainty: The STD of all the TALK determinations for 23 deep closed bottles was 0.7 umolkg-1.
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@25C
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.
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
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: DEG_C
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:
Clayton, T.D. and R.H. Byrne, Spectrophotometric seawater pH measurements: total hydrogen ion concentration scale concentration scale calibration of m-cresol purple and at-sea results. D.S.R. I, 40, 10, 2115-2129, https://doi.org/10.1016/0967-0637(93)90048-8, 1993.
Mercier, H., P. Lherminier, A. Sarafanov, F. Gaillard, N. Daniault, D. Desbruyères, A. Falina, B. Ferron, C. Gourcuff, T. Huck and V. Thierry, Variability of the meridional overturning circulation at the Greenland-Portugal OVIDE section from 1993 to 2010. Progress in Oceanography, https://doi.org/10.1016/j.pocean.2013.11.001, 2013.
Pérez F.F., A.F. Ríos, T. Rellán and M. Alvarez, Improvements in a fast potentiometric seawater alkalinity determination. Ciencias Marinas, 26(3), 463-478, https://doi.org/10.7773/cm.v26i3.592, 2000.
Vazquez-Rodriguez, M., F.F. Pérez, A. Velo, A.F. Ríos and H. Mercier, Observed acidification trends in North Atlantic water masses. Biogeosci, 9, 5217-5230, https://doi.org/10.5194/bg-9-5217-2012, 2012.
Zunino, P., M.I. García-Ibáñez, P. Lherminier, H. Mercier, A.F. Ríos and F.F. Pérez, Variability of the transport of anthropogenic CO2 at the Greenland-Portugal OVIDE section: controlling mechanisms. Biogeosci, 11(8), 2375-2389, https://doi.org/10.5194/bg-11-2375-2014, 2014.
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: 2013-07-08

REVISION DATE: 2016-12-20

PREVIOUS VERSIONS: Version 1.1Version 2.2