Details of The 2014 Greenland-Portugal GEOVIDE CTDO2 hydrographic and SADCP data (GO-SHIP A25 and GEOTRACES GA01)


Dataset identification

Title of datasetThe 2014 Greenland-Portugal GEOVIDE CTDO2 hydrographic and SADCP data (GO-SHIP A25 and GEOTRACES GA01)
Narrative summary of datasetThe GEOVIDE cruise was carried out coast to coast between Portugal and Newfoundland via the south tip of Greenland, following the OVIDE line in the eastern part and crossing the Labrador Sea in the western part. The classical hydrographic rosette was cast 163 times at 78 different geographical positions called stations. While the CTD-O2 probe acquired continuous profiles of the “physical” variables (pressure, temperature, salinity and dissolved oxygen), 22 Niskin bottles were closed at different levels during the upcast to provide samples for biogeochemical analysis. After calibration, we find precisions for pressure, temperature, salinity and dissolved oxygen that fit the GO-SHIP international quality requirements. In parallel, but not simultaneously, a trace-metal rosette (TMR) was cast 53 times, also acquiring profiles of physical variables, and equipped with 24 Go-Flo bottles adapted for the sampling of trace metals. Depending on the number of operations, stations were identified as “Short” (one single CTD cast), “Large” (3 CTD casts), “XLarge” (up to 6) and “Super” (up to 11). All along the track of the ship, current magnitude and direction was measured by Ship Acoustic Doppler Current Profilers, down to 1000m depth.
Summary of processing methodologyPressure; dbar; Seabird 911+; precision: 1 dbar Temperature; °C; Seabird 911+; precision: 0.001 °C Salinity; Seabird 911+; precision: 0.0014 Oxygen; µ; Seabird 43; precision: 1.2 µ Zonal ocean current; m.s-1; RDI OS38kHz; precision: 0.03 m.s-1; Meridional ocean current; m.s-1; RDI OS38kHz; precision: 0.03 m.s-1
Project/programmeANR GEOVIDE (2014-2018)
  • 486_14000200
  • Start date2014-05-15
    End date2014-06-30

    Responsible organisations

    Role of organisationOriginator of Dataset
    Organisation nameOcean Physics and Satellite oceanography laboratory- UMR 6523
    Role of organisationOriginator of Dataset

    Dataset availability

    Original dataset download link
    Date of original dataset publication2018-04-10
    Dataset formatNetwork Common Data Form
    Public accessNo limitations
    License for useCC0 1.0


    Latitude north boundary60
    Longitude east boundary-9
    Latitude south boundary38
    Longitude west boundary-53
    Coordinate reference systemWorld Geodetic System 84
    Sea areaNorth Atlantic Ocean
    Vertical extent maximum5335 Metres

    Data types, collection and processing

    Observation typeWater column temperature and salinity
    ParameterDissolved oxygen parameters in the water column
    Salinity of the water column
    Horizontal velocity of the water column (currents)
    Temperature of the water column
    Instrument typecurrent profilers
    Instrument nameTeledyne RDI Ocean Surveyor 38kHz ADCP
    Instrument typeCTD
    Instrument nameSea-Bird SBE 911plus CTD
    Platform typeresearch vessel
    Platform namePourquoi pas?

    Process information

    Submitting organisationIFREMER Head Office
    Submission identifier (UUID)123a23a9-8437-45d4-a43e-3160bb6a2daf
    Date of dataset creation2017-11-22
    Date of metadata creation2018-04-09
    Date of metadata latest revision2018-04-10
    Date of publishing2018-04-11
    Processing data centreIFREMER, SISMER, Scientific Information Systems for the SEA
    Summary record-ID139