ICY-LAB DY081 Autonomous ocean glider data off Southwest Greenland


Two Slocum gliders (units 331 and 439) were deployed during RRS Discovery expedition DY081 on July 17th 2017 at 62.9°N, 52.6°W, approximately 40 km off the Greenland shelf break, travelled North along the coast in a zig-zag pattern between the shelf and deep waters, and were recovered 8 days later from 63.7°N, 53.1°W and 62.9° N, 52.7°W respectively on July 24th 2017. Gliders profiled from the surface to 1000 m, except during the two excursions onto the shelf, once south and once north of the Godthåb Trough, where they followed the bathymetry. Each glider was fitted with a pumped CTD and bio-optical sensors (WET Labs puck). These bio-optical sensors measure optical backscattering (in the form of volume scattering function), chlorophyll fluorescence, and UV fluorescence for fluorescing dissolved organic matter (FDOM), a subset of coloured organic matter (CDOM). This dataset contains raw and processed/gridded data files from the glider deployments. The raw data are contained as .dbd and .ebd files in raw_data.zip folders for each of glider unit 331 and 439. The data were processed using the SOCIB glider toolbox (https://github.com/socib/glider_toolbox) and saved as a NetCDF (processed.nc) with the following variables: longitude, latitude, time (Julian Day), pressure, eastward velocity, northward velocity, temperature (not thermally corrected), salinity (not thermally corrected), chlorophyll fluorescence (not corrected for quenching), coloured organic matter (cdom), backscatter (volume scattering function) and oxygen concentration. The expedition report is provided and metadata can be found in the processed/gridded data files.

DOI https://doi.org/10.1594/PANGAEA.931292
Related Identifier References https://doi.org/10.1029/2021JC017274
Metadata Access https://ws.pangaea.de/oai/provider?verb=GetRecord&metadataPrefix=datacite4&identifier=oai:pangaea.de:doi:10.1594/PANGAEA.931292
Creator Hendry, Katharine R ORCID logo; Opher, Jacob; Brearley, James Alexander; Briggs, Nathan ORCID logo; Henson, Stephanie A; Meredith, Michael P ORCID logo
Publisher PANGAEA
Publication Year 2021
Funding Reference Horizon 2020 https://doi.org/10.13039/501100007601 Crossref Funder ID 678371 https://cordis.europa.eu/project/id/678371 Isotope CYcling in the LABrador Sea
Rights Creative Commons Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 4 data points
Discipline Geosciences; Natural Sciences; Oceanography/Marine Science; Physical Oceanography
Spatial Coverage (-53.087W, 62.904S, -52.629E, 63.715N)
Temporal Coverage Begin 2017-07-17T06:11:00Z
Temporal Coverage End 2017-07-24T00:00:00Z