Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Discovery cruise D379, ELL_2012 (EXPOCODE 74DI20120731) in the North Atlantic Ocean from 2012-07-31 to 2012-08-17 (NCEI Accession 0157313)

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This NCEI Accession includes discrete profile measurements of dissolved inorganic carbon, total alkalinity, CTD temperature, CTD salinity, CTD oxygen, nutrients, and delta C13 made during the R/V Discovery cruise D379, ELL_2012 (EXPOCODE 74DI20120731) in the North Atlantic Ocean from 2012-07-31 to 2012-08-17. The Extended Ellett Line is a hydrographic section between Iceland and Scotland that is occupied annually by scientists from the National Oceanography Centre (NOC) and the Scottish Association for Marine Science (SAMS), UK. The measurement programme began as a seasonally-occupied hydrographic section in the Rockall Trough in 1975, building on early surface observations made underway from ocean weather ships. In 1996 the section was extended to Iceland, sampling three basins: the Rockall Trough, the Hatton-Rockall Basin and the Iceland Basin. This report presents a summary of data from the Extended Ellett Line programme. The data are analysed to calculate time series of temperature and salinity of the upper ocean and Labrador Sea Water in the eastern subpolar gyre. The most recent Extended Ellett Line cruise (August 2012) is shown as temperature, salinity and density sections.
  • Cite as: Hartman, Susan E.; Esposito, Mario; Achterberg, Eric; Humphreys, Matthew P.; Griffiths, Alex M. (2016). Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Discovery cruise D379, ELL_2012 (EXPOCODE 74DI20120731) in the North Atlantic Ocean from 2012-07-31 to 2012-08-17 (NCEI Accession 0157313). Version 2.2. NOAA National Centers for Environmental Information. Dataset. doi:10.3334/CDIAC/OTG.CLIVAR_EEL_2012_D379 [access date]
gov.noaa.nodc:0157313
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Distributor DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Dataset Point of Contact Information Services
DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
301-713-3277
NCEI.Info@noaa.gov
Time Period 2012-07-31 to 2012-08-17
Spatial Bounding Box Coordinates
N: 63.31787
S: 56.66857
E: -6.133333
W: -20.2165
Spatial Coverage Map
General Documentation
  • Project Metadata
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  • Dataset Description
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  • Descriptive Information
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Associated Resources
  • Ocean CO2
    • Ocean CO2
      CDIAC Ocean Carbon Dioxide web page
  • Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations using CTD, bottle and other instruments from DISCOVERY in the Inner Sea - West Coast Scotland and North Atlantic Ocean from 2012-08-02 to 2012-08-15 (NCEI Accession 0157313)
Publication Dates
  • publication: 2016-12-08
  • revision: 2018-09-12
Edition 2.2
Data Presentation Form Digital table - digital representation of facts or figures systematically displayed, especially in columns
Dataset Progress Status Complete - production of the data has been completed
Data Update Frequency As needed
Supplemental Information
These data were acquired by NCEI from the Carbon Dioxide Information Analysis Center (CDIAC) in accordance with an archival submission agreement between CDIAC and NCEI.

The data provider requests citing these data as described in the Cross Reference Citation at: https://accession.nodc.noaa.gov/0157313

NCEI cannot verify the accuracy or availability of the data provider's citation information, which is maintained by the Carbon Dioxide Information Analysis Center (CDIAC).
Purpose Basic research
Use Limitations
  • accessLevel: Public
  • Distribution liability: NOAA and NCEI make no warranty, expressed or implied, regarding these data, nor does the fact of distribution constitute such a warranty. NOAA and NCEI cannot assume liability for any damages caused by any errors or omissions in these data. If appropriate, NCEI can only certify that data it distributes are an authentic copy of the records that were accepted for inclusion in the NCEI archives.
Dataset Citation
  • Cite as: Hartman, Susan E.; Esposito, Mario; Achterberg, Eric; Humphreys, Matthew P.; Griffiths, Alex M. (2016). Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Discovery cruise D379, ELL_2012 (EXPOCODE 74DI20120731) in the North Atlantic Ocean from 2012-07-31 to 2012-08-17 (NCEI Accession 0157313). Version 2.2. NOAA National Centers for Environmental Information. Dataset. doi:10.3334/CDIAC/OTG.CLIVAR_EEL_2012_D379 [access date]
Cited Authors
  • Hartman, Susan E.
  • Esposito, Mario
  • Achterberg, Eric
  • Humphreys, Matthew P.
  • Griffiths, Alex M.
Principal Investigators
  • Susan E. Hartman
    National Oceanography Centre, Southampton
  • Matthew P. Humphreys
    National Oceanography Centre, Southampton
  • Eric Achterberg
    National Oceanography Centre, Southampton
  • Alex M. Griffiths
    National Oceanography Centre, Southampton
Contributors
Resource Providers
Publishers
Theme keywords NODC DATA TYPES THESAURUS NODC OBSERVATION TYPES THESAURUS WMO_CategoryCode
  • oceanography
Cruise ID
  • EEL_2012, D379
EXPOCODE
  • 74DI20120731
Global Change Master Directory (GCMD) Science and Services Keywords
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > ALKALINITY
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > INORGANIC CARBON
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRATE
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > NITRITE
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > OXYGEN
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > PHOSPHATE
  • EARTH SCIENCE > OCEANS > OCEAN CHEMISTRY > SILICATE
  • EARTH SCIENCE > OCEANS > OCEAN PRESSURE > WATER PRESSURE
  • EARTH SCIENCE > OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
  • EARTH SCIENCE > OCEANS > SALINITY/DENSITY > DENSITY
  • EARTH SCIENCE > OCEANS > SALINITY/DENSITY > SALINITY
Originator Variable Names
  • ALKALI
  • ALKALI_FLAG_W
  • BTLNBR
  • CRUISE
  • CTDOXY
  • CTDOXY_FLAG_W
  • CTDPRS
  • CTDSAL
  • CTDSAL_FLAG_W
  • CTDTMP
  • DAY
  • DEPTH
  • EXPOCODE
  • LATITUDE
  • LONGITUDE
  • MONTH
  • NO2+NO3
  • NO3+NO2
  • NO3+NO2_FLAG_W
  • PHSPHT
  • PHSPHT_FLAG_W
  • SECT_ID
  • SIGMA
  • SILCAT
  • SILCAT_FLAG_W
  • STNNBR
  • TCARBN
  • TCARBN_FLAG_W
  • TIME
  • YEAR
Provider Variable Names
  • CTDOXY
  • CTDSAL
  • CTDTMP
  • DELC13
  • NITRAT
  • PHSPHT
  • SILCAT
  • TA
  • TCARBN
Reference Section ID
  • Extended Ellett Line
  • Extended Ellett Line, CLIVAR AR07E
Data Center keywords Global Change Master Directory (GCMD) Data Center Keywords
  • DOC/NOAA/NESDIS/NODC > National Oceanographic Data Center, NESDIS, NOAA, U.S. Department of Commerce
  • DOC/NOAA/NESDIS/NCEI > National Centers for Environmental Information, NESDIS, NOAA, U.S. Department of Commerce
NODC COLLECTING INSTITUTION NAMES THESAURUS NODC SUBMITTING INSTITUTION NAMES THESAURUS
Platform keywords NODC PLATFORM NAMES THESAURUS
Instrument keywords NODC INSTRUMENT TYPES THESAURUS Global Change Master Directory (GCMD) Instrument Keywords
  • CTD > Conductivity, Temperature, Depth
Place keywords NODC SEA AREA NAMES THESAURUS Global Change Master Directory (GCMD) Location Keywords
  • OCEAN > ATLANTIC OCEAN > NORTH ATLANTIC OCEAN
Provider Geographic Names
  • North Atlantic Ocean
Project keywords NODC PROJECT NAMES THESAURUS Global Change Master Directory (GCMD) Project Keywords
  • CLIVAR > Climate Variability
Ocean Acidification Search Keywords
  • Ocean Carbon Data System (OCADS) Project
Keywords NCEI ACCESSION NUMBER
Use Constraints
  • Cite as: Hartman, Susan E.; Esposito, Mario; Achterberg, Eric; Humphreys, Matthew P.; Griffiths, Alex M. (2016). Dissolved inorganic carbon, alkalinity, temperature, salinity and other variables collected from discrete sample and profile observations during the R/V Discovery cruise D379, ELL_2012 (EXPOCODE 74DI20120731) in the North Atlantic Ocean from 2012-07-31 to 2012-08-17 (NCEI Accession 0157313). Version 2.2. NOAA National Centers for Environmental Information. Dataset. doi:10.3334/CDIAC/OTG.CLIVAR_EEL_2012_D379 [access date]
Access Constraints
  • NOAA and NCEI cannot provide any warranty as to the accuracy, reliability, or completeness of furnished data. Users assume responsibility to determine the usability of these data. The user is responsible for the results of any application of this data for other than its intended purpose.
Fees
  • Digital data may be downloaded from NCEI at no charge in most cases. For custom orders of digital data or to obtain a copy of analog materials, please contact NCEI Information Services for information about current fees.
Lineage information for: dataset
Processing Steps
  • 2016-12-08T19:43:15 - NCEI Accession 0157313 v1.1 was published.
  • 2018-09-12T21:06:17 - NCEI Accession 0157313 was revised and v2.2 was published.
    Rationale: Updates were received for this data set. These updates were copied into the data/0-data/ directory of this accession. These updates may provide additional files or replace obsolete files. This version contains the most complete and up-to-date representation of this archival information package. All of the files received prior to this update are available in the preceding version of this accession.
Output Datasets
Lineage information for: dataset
Processing Steps
  • Parameter or Variable: Dissolved Inorganic Carbon; Abbreviation: TCARBN; Observation type: discrete; In-situ / Manipulation / Response variable: In-situ observation; Measured or calculated: Calculated; Replicate information: Repeated measurements on the same batch of seawater (n=3) in the lab gave consistent results (precision for the whole dataset estimated as 3 μmol kg-1).; Standardization description: In order to standardize the results, Certified Reference Materials (CRM) from A.G. Dickson, Scripps Institution of Oceanography were analysed as standards to calibrate the instrument at the beginning and end of each day of analysis. A daily correction factor was applied to all measured values according to Millero et al. (1998).; CRM batch number: 105, 119, 121.
  • Parameter or Variable: Total alkalinity; Abbreviation: TA; Observation type: discrete; In-situ / Manipulation / Response variable: In-situ observation; Measured or calculated: Measured; Type of titration: Titration with HCl (~0.10 mol/L) uses a closed cell procedure with an open cell, with a pH half cell electrode (glass bodied Orion 8101SC, Ross, USA) and an Ag/AgCl reference electrode (model 6.0729.100, Metrohm, Switzerland).; Cell type (open or closed): open cell; Curve fitting method: Non-linear curve fitting (least-squares) approach (Dickson et al., 2007); Uncertainty: Repeated measurements on the same batch of seawater (n=3) were undertaken every day prior to sample analysis in order to assess the precision of the method. The precision was estimated for the whole dataset to be 3 μmol kg-1 for DIC and 4 μmol kg-1 for TA. The accuracy of the measurement is assured by the standardization using the CRM from A.G. Dickson, Scripps Institution of Oceanography on daily basis.; Method reference: Dickson, A. G., C. L. Sabine, and J. R. Christian. 2007. Guide to best practices for ocean CO2 measurements. PICES Special Publication 3. 191 pp. Dumousseaud, C., E. P. Achterberg, T. Tyrrell, A. Charalampopoulou, U. Schuster, M. Hartman, and D. J. Hydes. 2010. Contrasting effects of temperature and winter mixing on the seasonal and inter-annual variability of the carbonate system in the Northeast Atlantic Ocean. Biogeosciences 7: 1481-1492. Grasshoff, K.: Determination of nutrients, in: Methods of Seawater Analysis, second edition, edited by: Grasshoff, K., Ehrhardt, M., and Kremling, K., Verlag Chemie GmbH, Basel, pp. 125–188, 419 pp., 1983. Hydes, D.J. et al. Use of a Ferry-Box system to look at shelf sea and ocean margin processes. In: Dahlin H., Flemming N.C., Nittis K., Petersson S.E. (Eds.), Building of the European Capacity in Operational Oceanography. Elsevier Oceanography Series 69, 2 Hydes, D. J., Yool, A., Campbell, J. M., Crisp, N. A., Dodgson, J., Dupee, B., Edwards, M., Hartman, S. E., Kelly-Gerreyn, B. A., Lavin, A. M., Gonz´alez-Pola, C. M. and Miller, P.: Use of a Ferry-Box system to look at shelf sea and ocean margin processes, edited by: Dahlin, H., Flemming, N. C., Nittis, K., Petersson, S. E., Building of the European Capacity in Operational Oceanography, Elsevier Oceanography Series, 69, 297–303, 2003. Millero, F. J., Dickson, A. G., Eischeid, G., Goyet, C., Guenther, P., Johnson, K. M., Key, R. M., Lee, K., Purkenson, D., Sabine, C. L., Schottle, R. G., Wallace, D. W. R., Lewis, E., and Winn, C. D.: Assessment of the quality of the shipboard measurements of total alkalinity on the WOCE Hydrographic Program Indian Ocean CO2 survey cruises 1994–1996, Mar. Chem., 63, 9–20, 1998.
  • Parameter or Variable: CTDTMP; Abbreviation: CTDTMP; Unit: DEG_C; Controlled vocabulary name: WATER TEMPERATURE; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: CTDSAL; Abbreviation: CTDSAL; Controlled vocabulary name: SALINITY; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: CTDOXY; Abbreviation: CTDOXY; Unit: UMOL/KG; Controlled vocabulary name: DISSOLVED OXYGEN; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: SILCAT; Abbreviation: SILCAT; Unit: UMOL/KG; Controlled vocabulary name: silicate; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: Nitrate; Abbreviation: NITRAT; Unit: UMOL/KG; Controlled vocabulary name: nitrate + nitrite content (concentration); In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: PHSPHT; Abbreviation: PHSPHT; Unit: UMOL/KG; Controlled vocabulary name: phosphate; In-situ / Manipulation / Response variable: in-situ.
  • Parameter or Variable: DELC13; Abbreviation: DELC13; In-situ / Manipulation / Response variable: in-situ.
Acquisition Information (collection)
Instrument
  • bottle
  • CTD
Platform
  • DISCOVERY
Last Modified: 2018-09-17T19:23:15
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