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Sea surface and atmospheric carbon dioxide (CO2) measurements in the Atlantic Ocean during the Ship of Opportunity (SOOP) UK to Caribbean lines onboard the MV Benguela Stream in 2017 (NCEI Accession 0174135)

INVESTIGATORS:
Ute Schuster - University of Exeter
Andrew J. Watson - University of Exeter

PACKAGE DESCRIPTION: This dataset includes surface underway, chemical, meteorological and physical data collected from Ship of Opportunity (SOOP) MV Benguela Stream in the North Atlantic Ocean from 2017-01-21 to 2017-10-19. These data include partial pressure of carbon dioxide (pCO2) - water, pCO2 - air, air-sea difference of pCO2, barometric pressure, dissolved oxygen, nutrients, sea surface salinity and temperature. The instruments used to collect these data include barometric pressure sensor and carbon dioxide gas analyzer. These data were collected by Dr. Ute Schuster of University of Exeter.

CITE AS: Schuster, Ute; Watson, Andrew J. (2018). Sea surface and atmospheric carbon dioxide (CO2) measurements in the Atlantic Ocean during the Ship of Opportunity (SOOP) UK to Caribbean lines onboard the MV Benguela Stream in 2017 (NCEI Accession 0174135). [indicate subset used]. NOAA National Centers for Environmental Information. Dataset. https://doi.org/10.7289/v57h1gxq. Accessed [date].


DATA PACKAGES RELATED TO THIS ONE:
IDENTIFICATION INFORMATION FOR THIS DATA PACKAGE:
NCEI ACCESSION: 0174135
NCEI DOI: https://doi.org/10.7289/v57h1gxq
EXPOCODE: 642B20170104; 642B20170121; 642B20170203; 642B20170219; 642B20170329; 642B20170414; 642B20170426; 642B20170524; 642B20170610; 642B20170622; 642B20170708; 642B20170817; 642B20170902; 642B20170914; 642B20171001; 642B20171011;
CRUISE ID: BS117A; BS117C; BS118A; BS118C; BS120A; BS120C; BS121A; BS122A; BS122C; BS123A; BS123C; BS125C; BS126A; BS126C; BS127A;
SECTION/LEG: SOOP;

TYPES OF STUDY:
Surface measurement;Surface underway;

TEMPORAL COVERAGE:
START DATE: 2017-01-21
END DATE: 2017-10-19

SPATIAL COVERAGE:
NORTH: 50.7
WEST: -71.9
EAST: -.3
SOUTH: 14.4

GEOGRAPHIC NAMES:
North Atlantic Ocean;

PLATFORMS:
MV Benguela Stream (ID: 642B);

RESEARCH PROJECT(S):
Ship Of Opportunity Program (SOOP);


VARIABLES / PARAMETERS:

pCO2 (fCO2) autonomous
Abbreviation: xCO2_sea
Unit: uatm
Observation type: Surface underway
Measured or calculated: Measured
Sampling instrument: Seawater pump
Analyzing instrument: NDIR
Detailed sampling and analyzing information: Non-dispersive infrared (NDIR) analysis on partially dried gas. NDIR calibration frequency: every 90 minutes using 0 ppm, 250 ppm, 350 ppm, or 450 ppm gas standards. Measurement frequency: every 1 minute except during NDIR calibration routines.
Equilibrator type: Percolator
Equilibrator volume: approx 1 L
Is the equilibrator vented or not: Vented
Water flow rate: 3.5 L/min
Gas flow rate: 0.1 L/min
Drying method for gas: Thermoelectric cooling units followed by permeable membrane dryer and magnessium perchlorate tube
SEA CO2 gas detector manufacturer: Licor, Inc
SEA CO2 gas detector model: LI7000
SEA CO2 gas detector resolution: +/- 0.1 ppm
SEA CO2 gas detector uncertainty: less than 2 ppm
Standardization technique: Primary standards traceable to the WMO-X93 scale. Primary standards from NOAA calibrated in 2008
Standard gas manufacturer: BOC, UK (www.boc.com)
Standard gas concentration: 0 ppm CO2 in dry air (UoE 000B052) with CO2 trap to remove any residual CO2 259.97 +/- 0.1 ppm CO2 in dry air (UoE 250B052) calibrated to NOAA/CMDL (http://www.cmdl.noaa.gov/ccgg/refgases/index.html) on 11 Feb 2017 361.00 +/- 0.1 ppm CO2 in dry air (UoE 350B052) calibrated to NOAA/CMDL (http://www.cmdl.noaa.gov/ccgg/refgases/index.html) on 11 Feb 2017 460.21 +/- 0.1 ppm CO2 in dry air (UoE 450B052) calibrated to NOAA/CMDL (http://www.cmdl.noaa.gov/ccgg/refgases/index.html) on 11 Feb 2017
At what temperature was pCO2 reported: In situ sea surface temperature
Method reference: Pierrot et al., Deep Sea Res. II, 56, 512-522 (2009)
Researcher name: Ute Schuster
Researcher institution: University of Exeter, UK
Sea Surface Temperature
Abbreviation: SST_C
Unit: degrees celcius
Observation type: Surface Underway
Analyzing instrument: T-4050; Aanderaa Instruments, Norway
Uncertainty: 0.001
Researcher name: Ute Schuster
Researcher institution: University of Exeter, UK
Sea Surface Salinity
Abbreviation: SSS
Observation type: Surface Underway
Analyzing instrument: Seabird SBE 45 Micro Thermosalniograph; Sea-Bird Electronics, Inc., US
Uncertainty: 0.0002
Researcher name: Ute Schuster
Researcher institution: University of Exeter, UK
Barometreic pressure transducer
Abbreviation: AtmPrs
Unit: mBar
Observation type: Surface Underway
Analyzing instrument: Li7000; Li-Cor, ambient engine room pressure calibrated to sea level pressure
Uncertainty: 0.1 hPa
Researcher name: Ute Schuster
Researcher institution: University of Exeter, UK
Dissolved Oxygen
Abbreviation: Oxygen
Unit: UMOL/KG
Observation type: Surface Underway
Analyzing instrument: Optode 3835; Aanderaa Instruments, Norway
Uncertainty: UMOL/KGhPa
Researcher name: Ute Schuster
Researcher institution: University of Exeter, UK

PUBLICATIONS DESCRIBING THIS DATASET:
Cooper, D. J., Watson, A. J., & Ling, R. D. (1998). Variation of pCO2 along a North Atlantic shipping route (U.K. to the Caribbean): A year of automated observations. Marine Chemistry, 60(1–2), 147–164. https://doi.org/10.1016/s0304-4203(97)00082-0
Pierrot, D., Neill, C., Sullivan, K., Castle, R., Wanninkhof, R., Lüger, H., Johannessen, T., Olsen, A., Feely, R. A., & Cosca, C. E. (2009). Recommendations for autonomous underway pCO2 measuring systems and data-reduction routines. Deep Sea Research Part II: Topical Studies in Oceanography, 56(8-10), 512-522. https://doi.org/10.1016/j.dsr2.2008.12.005
Schuster, U., & Watson, A. J. (2007). A variable and decreasing sink for atmospheric CO2 in the North Atlantic. Journal of Geophysical Research, 112(C11). https://doi.org/10.1029/2006jc003941
ADDITIONAL INFORMATION:
none;
FUNDING AGENCY:
UK NERC
PROJECT TITLE: This work was in parts supported by the UK NERC grant NE/K002473/1 (Radiatively active gases from the North Atlantic region and Climate Change, RAGANARoCC, a component of the UK Greenhouse Gas Emissions and Feedback Programme), European Union grant 633211 (Optimising and Enhancing the Integrated Atlantic Ocean Observing Systems, AtlantOS, part of Horizon2010).
PROJECT ID: NE/K002473/1

SUBMITTED BY: Ute Schuster (U.Schuster@exeter.ac.uk)

SUBMISSION DATE: 2017-12-18