Published

Calibrated CTD data from OSNAP Pelagia cruise 64PE473 in July-Aug 2020 Version 70

Royal Netherlands Institute for Sea Research https://doi.org/10.25850/nioz/7b.b.1f

The goals of the research carried out during the cruise were to deploy surface drifters on the east Greenland shelf to investigate the export of freshwater towards deep convection areas, to service the five NIOZ Overturning of the Subpolar North Atlantic Program (OSNAP) moorings in the Irminger Sea located on the western flank of the Mid Atlantic Ridge, recover two lander deployed on the ridge by Ifremer in 2018 and to establish the hydrography along the OSNAP line (co-located with AR7E) to allow the study of inter-annual hydrographic variability. The data set published here comprises of the 67 CTD stations surveyed during the cruise.

The cruise started and ended on Texel. After passing the Pentland Firth, a more or less direct line was steamed towards Cape Farewell, An initial CTD cast was done during the transit, for testing and training purposes, at 59° 36.71’ N, 29° 31.34’ W, on 18 July 2020. The first science station of the section was done just off Cape Farewell, at 60° 02.52’ N, 43° 02.67’ W, on 20 July 2020. The last station was done west of Rockall island, at 57° 34.90’ N, 14° 36.87’ W, on 11 August 2020, from where the Pelagia steamed back to Texel. Many of the CTD stations were taking near moorings along the OSNAP line, to facilitate use for mooring calibration. On the CTD stations, a total of 318 water samples were collected for the salinity calibration and 70 for oxygen calibration. Water samples were taken in layers with weak vertical gradients only. All samples have been analysed at NIOZ and final CTD data available here have been corrected for biases found against these samples.

Data and Resources

Additional Info

Field Value
Subject Earth and Environmental Sciences
DAS Code 7b.b.1f
Source https://dataportal.nioz.nl/doi/10.25850/nioz/7b.b.1f
Version 70
Creator(s)
de Jong, Femke (Royal Netherlands Institute for Sea Research)
ORCID
Contact the corresponding author
Depositor Femke de Jong
Publication Date 2023-09-15
Deposit Date 2023-09-15
Dataset Persistent Identifier DOI:10.25850/nioz/7b.b.1f
Alternate identifier
Related identifier
Contributor NIOZ Royal Netherlands Institute for Sea Research
Distributor Research Data Management(NIOZ Royal Netherlands Institute for Sea Research)
Distribution Date 2023-09-15
Production Date 2023-09-15
Dates
Collected
2020-07-18 until 2020-08-11
Funding References
NWO (016.Vidi.189.130)
Where does the freshwater go?
Geographic Coverage
AR7E section
North Bound: -43.1
South Bound: 60.1
West Bound: -14.6
East Bound: 57.5