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Sea surface measurements of dissolved inorganic carbon (DIC), total alkalinity (TALK), temperature and salinity during the R/V Marion-Dufresne Ocean Indien Service d'Observations - 27 (OISO-27) cruise (EXPOCODE 35MV20170105) in the Indian Ocean from 2017-01-05 to 2017-02-07 (NCEI Accession 0183099)

INVESTIGATORS:
Nicolas Metzl ORCID logo - Sorbonne University (SU)
Claire Lo Monaco ORCID logo - Sorbonne University (SU)

PACKAGE DESCRIPTION: This dataset consists of surface measurements of dissolved inorganic carbon (DIC), total alkalinity (TALK), temperature and salinity during the R/V Marion-Dufresne Ocean Indien Service d'Observations - 27 (OISO-27) cruise (EXPOCODE 35MV20170105) in the Indian Ocean from 2017-01-05 to 2017-02-07. The OISO program (Océan Indien Service d'Observations), initiated in 1998, collects measurements of pCO2 and associated parameters (T, S, DIC, TALK, nutrients, Chl-a, 13C) along the repeated lines of R.V. Marion-Dufresne in the South-Western Indian and Southern Oceans; this coverage is a complement of the international CO2 observing system (IOCCP). The OISO data are regularly included in international synthesis (SOCAT, GLODAP).

CITE AS: Metzl, Nicolas; Lo Monaco, Claire; Fin, Jonathan (2018). Sea surface measurements of dissolved inorganic carbon (DIC), total alkalinity (TALK), temperature and salinity during the R/V Marion-Dufresne Ocean Indien Service d'Observations - 27 (OISO-27) cruise (EXPOCODE 35MV20170105) in the Indian Ocean from 2017-01-05 to 2017-02-07 (NCEI Accession 0183099). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.25921/k65y-r097. Accessed [date].


DATA PACKAGES RELATED TO THIS ONE:
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0183099
NCEI DOI: https://doi.org/10.25921/k65y-r097
EXPOCODE: 35MV20170105;
CRUISE ID: OISO-27;
SECTION/LEG: OISO-27;

TYPES OF STUDY:
Surface underway;

TEMPORAL COVERAGE:
START DATE: 2017-01-05
END DATE: 2017-02-07

SPATIAL COVERAGE:
NORTH: -26.9
WEST: 51.4
EAST: 83.4
SOUTH: -56.7

GEOGRAPHIC NAMES:
Indian Ocean;

PLATFORMS:
Marion-Dufresne (ID: 35MV);

RESEARCH PROJECT(S):
none;


VARIABLES / PARAMETERS:

Dissolved Inorganic Carbon
Abbreviation: DIC
Unit: µmol/kg
Observation type: Surface semi-continuous
Measured or calculated: Measured
Sampling instrument: Seawater pump
Analyzing instrument: Potentiometric method
Detailed sampling and analyzing information: Semi-continuous sea surface sampling, potentiometric titration (Edmond, 1970) closed cell (Laboratory home-made), calculations DOE (1994)
Replicate information: Mean replicate for deep samples (23): 1.9 µmol/kg; mean replicate for surface samples (70): 2.4 µmol/kg
CRM manufacturer: Univ California San Diego, SIO, A. Dickson
CRM batch number: 148, 155
Uncertainty: 3 µmol/kg
Quality flag convention: WOCE/GLODAP (2 Acceptable, 3 Questionnable, 4 Bad, 9 No data)
Method reference: Metzl, N., C.Brunet, Jabaud-Jan A, A.Poisson and B.Schauer, 2006. Summer and winter air-sea CO2 fluxes in the Southern Ocean Deep Sea Res I, 53, 1548-1563, https://doi.org/10.1016/j.dsr.2006.07.006
Researcher name: Nicolas Metzl, Claire Lo Monaco
Researcher institution: LOCEAN CNRS, Paris France
Total alkalinity
Abbreviation: TALK
Unit: µmol/kg
Observation type: Surface semi-continuous
Measured or calculated: Measured
Sampling instrument: Seawater pump
Analyzing instrument: Potentiometric titration
Type of titration: Potentiometric titration
Cell type (open or closed): Closed (Laboratory Home-made)
Curve fitting method: DOE (1994)
Detailed sampling and analyzing information: Semi-continuous sea surface sampling, potentiometric titration (Edmond, 1970) closed cell (Laboratory home-made), calculations DOE (1994)
Replicate information: Mean replicate for deep samples (23): 2.0 µmol/kg; mean replicate for surface samples (70): 2.4 µmol/kg
CRM manufacturer: Univ California San Diego, SIO, A. Dickson
CRM batch number: 148, 155
Uncertainty: 3 µmol/kg
Quality flag convention: WOCE/GLODAP (2 Acceptable, 3 Questionnable, 4 Bad, 9 No data)
Method reference: Metzl, N., C.Brunet, Jabaud-Jan A, A.Poisson and B.Schauer, 2006. Summer and winter air-sea CO2 fluxes in the Southern Ocean Deep Sea Res I, 53, 1548-1563, https://doi.org/10.1016/j.dsr.2006.07.006
Researcher name: Nicolas Metzl, Claire Lo Monaco
Researcher institution: LOCEAN CNRS, Paris France
Sea surface temperature
Abbreviation: TEMP
Unit: C
Observation type: Surface continuous
Sampling instrument: Seawater pump
Analyzing instrument: SBE
Detailed sampling and analyzing information: SBE sensor compared to TSG data provided by IPEV and to surface CTD data during the casts (pre and post-cruise calibrated)
Uncertainty: 0.005
Quality flag convention: WOCE/GLODAP (2 Acceptable, 3 Questionnable, 4 Bad, 9 No data)
Researcher name: Nicolas Metzl, Claire Lo Monaco
Researcher institution: LOCEAN CNRS, Paris France
Sea surface salinity
Abbreviation: Salinity
Observation type: Surface continuous
Sampling instrument: Seawater pump
Analyzing instrument: SBE
Detailed sampling and analyzing information: SBE compared to regular (4/day) sea surface samples (Salinometer Guildline AUTOSAL and IAPSO standard / OSI) and to surface CTD data during the casts (pre and post-cruise calibrated, IPEV)
Uncertainty: 0.01
Quality flag convention: WOCE/GLODAP (2 Acceptable, 3 Questionnable, 4 Bad, 9 No data)
Researcher name: Nicolas Metzl, Claire Lo Monaco
Researcher institution: LOCEAN CNRS, Paris France

PUBLICATIONS DESCRIBING THIS DATASET:
none;
ADDITIONAL INFORMATION:
For this cruise (OISO-27), sea surface pCO2 data also available in OCADS (NCEI Accession 0172096). Water column DIC/TALK data will be available in GLODAPv3. The cruise was associated to projects OHA-SIS-BIO-9 (J.-Y. Royer /IUEM), THEMISTO (C. Cotté/LOCEAN-MNHN) and REPCCOAI (J-Y Toullec CNRS/P. Koubbi MNHN). METZL Nicolas, LO MONACO Claire, TOULLEC Jean-Yves, KOUBBI Philippe, ROYER Jean-Yves, COTTE Cédric (2017) MD 206 / OBSAUSTRAL cruise, RV Marion Dufresne, https://doi.org/10.17600/17002400.
FUNDING AGENCY:
INSU (Institut National des Sciences de l’Univers), CNRS (Centre National de Recherche Scientifique), IPEV (Institut polaire français Paul Emile Victor, French Polar Institute).
PROJECT TITLE: OISO
PROJECT ID:

SUBMITTED BY: Nicolas Metzl (nicolas.metzl@locean-ipsl.upmc.fr)

SUBMISSION DATE: 2018-12-10