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Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the MARION DUFRESNE in the South Atlantic Ocean from 2008-02-07 to 2008-03-24 (NCEI Accession 0112841)

INVESTIGATORS:
Melchor González-Dávila - Universidad de Las Palmas de Gran Canaria (ULPGC)
Sabrina Speich - UBO; European Institute for Marine Studies (IUEM)
Bruno Delille - University Liege
Mario Hoppema - Alfred Wegener Institute for Polar and Marine Research (AWI)

PACKAGE DESCRIPTION: This dataset includes chemical, discrete sample, physical and profile data collected from MARION DUFRESNE in the South Atlantic Ocean from 2008-02-07 to 2008-03-24 and retrieved during cruise BONUS GoodHope 2008 and leg 1; MD166. These data include ALKALINITY, AMMONIUM, CHLOROFLUOROCARBON-11 (CFC-11), CHLOROFLUOROCARBON-113 (CFC-113), CHLOROFLUOROCARBON-12 (CFC-12), Carbon tetrachloride (CCL4), DISSOLVED INORGANIC CARBON, DISSOLVED OXYGEN, HYDROSTATIC PRESSURE, NITRATE, PHOSPHATE, Potential temperature (theta), SALINITY, SILICATE, WATER TEMPERATURE and pH. The instruments used to collect these data include Alkalinity titrator, CTD, Coulometer for DIC measurement, Spectrophotometer for pH measurement and bottle. These data were collected by Mario Hoppema of Alfred Wegener Institute for Polar and Marine Research, Melchor Gonzalez-Davila of Universidad de Las Palmas de Gran Canaria, Sabrina Speich of University of Bretagne Occidental; Lop - Brest and Bruno Delille of University of Liege as part of the CLIVAR_A12_35MF20080207 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: Hoppema, Mario; Delille, Bruno; Speich, Sabrina; Willey, Debra; Arhan, Michel; Boye, Marie; Le Moigne, Frédéric A. C.; Fine, Rana A.; Willey, Debra; Tisnérat, Nadine (2013). Dissolved inorganic carbon, pH, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using Alkalinity titrator, CTD and other instruments from the MARION DUFRESNE in the South Atlantic Ocean from 2008-02-07 to 2008-03-24 (NCEI Accession 0112841). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.3334/cdiac/otg.clivar_a12_35mf20080207. Accessed [date].


DATA PACKAGES RELATED TO THIS ONE:
none;
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0112841
NCEI DOI: https://doi.org/10.3334/cdiac/otg.clivar_a12_35mf20080207
EXPOCODE: 35MF20080207;
CRUISE ID: BONUS GoodHope 2008, leg 1; MD166;
SECTION/LEG: A12_2008;

TYPES OF STUDY:
Discrete measurement;Profile;

TEMPORAL COVERAGE:
START DATE: 2008-02-07
END DATE: 2008-03-24

SPATIAL COVERAGE:
NORTH: -33.9392
WEST: -.1143
EAST: 17.956
SOUTH: -57.5528

GEOGRAPHIC NAMES:
Atlantic Ocean;

PLATFORMS:
R/V Marion Dufresne (ID: 35MF);

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: A VINDTA 3C system [Mintrop et al., 2000] (www.MARIANDA.com), with coulometer determination was used for the titration of the total dissolved inorganic carbon after phosphoric acid addition. The titration of CRMs (#85) was used to test the performance of the equipment after the preparation of each titration cell. Over 30 bottles were analysed on board with a system precision of ± 1.5 μmol kg-1.
Total alkalinity
Abbreviation: TA
Observation type: discrete
In-situ / Manipulation / Response variable: In-situ observation
Measured or calculated: Measured
Type of titration: potentiometric titration
Curve fitting method: Samples for AT were potentiometrically titrated with standardized 0.25 M HCl (0.45M in NaCl) to the carbonic acid end point using a systems described in detail by Mintrop et al. [2000]. The titration of certify reference Material for Oceanic CO2, CRMs (#85) was used to test the performance of the titration system given values that were within ± 1.0 μmol kg-1 of the certified value.
Uncertainty: Each CRM sample was also analysed for total alkalinity determination, and the corresponding chart sheet is presented in Figure 42. The agreement between on board experimental data (NAT = 2293.7 ± 1.0) and certify value (NAT = 2293.7 ± 0.8) indicates accurate HCl concentration and pipette volume for the titration system.
pH
Abbreviation: pH
pH scale: Total Scale
Observation type: discrete
In-situ / Manipulation / Response variable: In-situ observation
Measured or calculated: Measured
Detailed sampling and analyzing information: The pH is measured in total scale ([H+]T = [H+]F + [HSO4-], where [H+]F is the free proton concentration), pHT at a constant temperature of 25oC. An automatized system based on the spectrophotometric technique of Clayton and Byrne [1993] with the m-cresol purple as indicator was used [González-Dávila et al., 2003].
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
NH4
Abbreviation: NH4
Unit: UMOL/KG
Controlled vocabulary name: AMMONIUM (NH4)
In-situ / Manipulation / Response variable: in-situ
CFC-11
Abbreviation: CFC-11
Unit: PMOL/KG
Controlled vocabulary name: CHLOROFLUOROCARBON-11 (CFC-11)
In-situ / Manipulation / Response variable: in-situ
CFC-12
Abbreviation: CFC-12
Unit: PMOL/KG
Controlled vocabulary name: CHLOROFLUOROCARBON-12 (CFC-12)
In-situ / Manipulation / Response variable: in-situ
CFC-113
Abbreviation: CFC-113
Unit: PMOL/KG
Controlled vocabulary name: CHLOROFLUOROCARBON-113 (CFC-113)
In-situ / Manipulation / Response variable: in-situ
CCL4
Abbreviation: CCL4
Unit: PMOL/KG
Controlled vocabulary name: Carbon tetrachloride (CCL4)
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
PH_TOT
Abbreviation: PH_TOT
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:
Arhan, M., Speich, S., Messager, C., Dencausse, G., Fine, R., and Boye, M. (2011), Anticyclonic and cyclonic eddies of subtropical origin in the subantarctic zone south of Africa, J. Geophys. Res., 116, C11004, https://doi.org/10.1029/2011JC007140.
Bown J., M. Boye, A. Baker, E. Duvieilbourg, F. Lacan, F. Le Moigne, F. Planchon, S. Speich and D.M. Nelson. 2011. The biogeochemical cycle of dissolved cobalt in the Atlantic and the Southern Ocean south off the coast of South Africa. Marine Chemistry. https://doi.org/10.1016/j.marchem.2011.03.008.
Bown, J., M. Boye and D. M. Nelson. 2012. New insights on the role of organic speciation in the biogeochemical cycle of dissolved cobalt in the southeastern Atlantic and the Southern Ocean. Biogeosciences, 9:2719-2736
Boye, M., B. D. Wake, P. Lopez Garcia, J. Bown, A. R. Baker and E. P. Achterberg. 2012. Distributions of dissolved trace metals (Cd, Cu, Mn, Pb, Ag) in the southeastern Atlantic and the Southern Ocean. Biogeosciences, 9:3231-3246
Chever, F., E. Bucciarelli, G. Sarthou, S. Speich, M. Arhan, P. Penven and A. Tagliabue. 2010. Physical speciation of iron in the Atlantic sector of the Southern Ocean along a transect from the subtropical domain to the Weddell Sea Gyre. J. Geophys. Res. 115, C10059. https://doi.org/10.1029/2009JC005880.
Faure, V., M. Arhan, S. Speich and S. Gladyshev. 2011. Heat budget of the surface mixed layer south of Africa. Ocean Dyn. https://doi.org/10.1007/s10236-011-0444-1.
Fripiat, F., A.-J. Cavagna, F. Dehairs, S. Speich, L. Andro and D. Cardinal. 2011. Silicon pool dynamics and biogenic silica export in the Antarctic Circumpolar Current inferred from Si-isotopes. Ocean Sci. 7:533-547, https://doi.org/10.5194/os-7-533-2011.
Fripiat, F., A.-J. Cavagna, F. Dehairs, A. de Brauwere, L. Andro and D. Cardinal. 2012. Processes controlling the Si-isotopic composition in the Southern Ocean and application for paleoceanography. Biogeosciences. 9:2443-2457
González-Dávila, M., J.M. Santana-Casiano, R.A. Fine, J. Happell, B. Delille and S. Speich. 2011. Carbonate system in the water masses of the Southeast Atlantic sector of the Southern Ocean during February and March 2008. Biogeosciences 8:1401-1413. https://doi.org/10.5194/bg-8-1401-2011
Hoppema, M., F. Dehairs, J. Navez, C. Monnin, C. Jeandel, E. Fahrbach, H.J.W. de Baar. 2010. Distribution of barium in the Weddell Gyre: Impact of circulation and biogeochemical processes. Marine Chemistry. 122:118-129. https://doi.org/10.1016/j.marchem.2010.07.005
Jeandel, C., Venchiarutti, C., Bourquin, M., Pradoux, C., Lacan, F., van Beek, P. and Riotte, J. (2011), Single Column Sequential Extraction of Ra, Nd, Th, Pa and U from a Natural Sample. Geostandards and Geoanalytical Research, 35: 449-459. https://doi.org/10.1111/j.1751-908X.2010.00087.x
Joubert, W. R., S. J. Thomalla, H. N. Waldron, M. I. Lucas, M. Boye, F. A. C. Le Moigne, F. Planchon and S. Speich. 2011. Nitrogen uptake by phytoplankton in the Atlantic sector of the Southern Ocean during late austral summer. Biogeosciences 8:2947-2959. https://doi.org/10.5194/bg-8-2947-2011
Lacan, F., A. Radic, C. Jeandel, F. Poitrasson, G. Sarthou, C. Pradoux and R. Freydier. 2008. Measurement of the isotopic composition of dissolved iron in the open ocean. Geophys. Res. Lett. 35 L24610. https://doi.org/10.1029/2008GL035841
Lacan, F., A. Radic, C. Jeandel, R. Freydier, F. Poitrasson, and G. Sarthou. 2008. Measurement of the isotopic composition of dissolved Fe in seawater. Geochim. Cosmochim. Acta. 72 (12), A425-A425.
Lacan, F., A. Radic, M. Labatut, C. Jeandel, F. Poitrasson, G. Sarthou, C. Pradoux, J. Chmeleff and R. Freydier. 2010. High-Precision Determination of the Isotopic Composition of Dissolved Iron in Iron Depleted Seawater by Double Spike Multicollector-ICPMS. Analytical Chemistry 82(17), 7103-7111. https://doi.org/10.1021/ac1002504
Le Moigne, F.A.C., M. Boye, A. Masson, R. Corvaisier, E. Grossteffan, A. Gueneugues and P. Pondaven. 2013. Description of the biogeochemical features of the subtropical southeastern Atlantic and the Southern Ocean south of South Africa during the austral summer of the International Polar Year. Biogeosci 10:1-15. https://doi.org/10.5194/bg-10-1-2013
Messager, C., S. Speich and E. Key. 2012. Marine atmospheric boundary layer over some Southern Ocean fronts during the IPY BGH 2008 cruise. Ocean Sci. 8:1001-1023.
Rimaud, J., S. Speich, B. Blanke and N. Grima. 2012. The exchange of Intermediate Water in the southeast Atlantic: Water mass transformations diagnosed from the Lagrangian analysis of a regional ocean model. J. Geophys. Res. 117 C08034. https://doi.org/10.1029/2012JC008059.
Rusciano, E., S. Speich and M. Ollitrault. 2012. Antarctic Intermediate Water dynamics budget and fluxes. Interocean exchanges South of Africa. J. Geophys. Res. https://doi.org/10.1029/2012JC008266
Sarthou, G., E. Bucciarelli, F. Chever, S. P. Hansard, M. González-Dávila, J. M. Santana-Casiano, F. Planchon and S. Speich. 2011. Labile Fe(II) concentrations in the Atlantic sector of the Southern Ocean along a transect from the subtropical domain to the Weddell Sea Gyre. Biogeosciences 8:2461-2479
Speich, S., M. Arhan, E. Rusciano, V. Faure, M. Ollitrault, A. Prigent, S. Swart. 2012. Use of ARGO floats to study the ocean dynamics south of Africa : What we have learned from the GoodHope project and what we plan within the SAMOC International Programme. Mercator Oceana Coriolis Quarterly Newsletter - Special Issue. 45:21-27.
Tagliabue, A., L. Bopp, J.-C. Dutay, A. Bowie, F. Chever, P.-J. Baptiste, E. Bucciarelli, D. Lannuzel, T. Remenyi, G. Sarthou, O. Aumont, M. Gehlenand C. Jeande. 2010. On the importance of hydrothermalism to the oceanic dissolved iron inventory. Nature Geosciences, https://doi.org/10.1038/NGEO818.
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:

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

SUBMISSION DATE: 2013-09-10