Glider data collected in the Scotia Sea, October 2017-February 2018

Dataset used in Henson et al. (2023). Binned, calibrated, merged glider data collected with 2 Slocum G2s and 1 Seaglider from 0 to 1000 m depth. The data were collected NW of South Georgia, Scotia Sea between 19 October 2017 - 13 February 2018. Gliders sampled continuously following a triangular pat...

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Bibliographic Details
Main Authors: Henson, Stephanie A, Carvalho, Filipa, Briggs, Nathan, Thomalla, Sandy J
Format: Dataset
Language:English
Published: PANGAEA 2024
Subjects:
chlorophyll-a concentration
export flux
File content
Glider
Slocum G2
netCDF file
netCDF file (File Size)
Optical backscatter sensor
Oxygen concentration
particulate organic carbon (POC)
POC flux
Seaglider
SG542
SL398
SL404
Southern Ocean
South Georgia
Temperature and Salinity
transfer efficiency
Scotia Sea
Online Access:https://doi.pangaea.de/10.1594/PANGAEA.967727
https://doi.org/10.1594/PANGAEA.967727
Description
Summary:Dataset used in Henson et al. (2023). Binned, calibrated, merged glider data collected with 2 Slocum G2s and 1 Seaglider from 0 to 1000 m depth. The data were collected NW of South Georgia, Scotia Sea between 19 October 2017 - 13 February 2018. Gliders sampled continuously following a triangular path of ~12 km per side centred on 52.75°S, 40.16°W. The glider sampled with a vertical resolution of ~20 cm, emerging 5 to 6 times per day. Temperature, Conductivity and Depth were measured with a Seabird CTD (pumped) on Slocum gliders and a pumped Seabird CTD sail on the Seaglider. Dissolved oxygen was measured with Aanderaa optodes. Chlorophyll fluorescence and optical backscatter were measured using Seabird Triplet ECOPucks. Oxygen and chlorophyll data were calibrated against shipboard bottle samples collected using a CTD rosette. Chlorophyll data have been corrected for non-photochemical quenching. Optical backscatter was additionally converted into POC concentration using shipboard CTD bottle samples, and estimates of POC flux were then made following the methods detailed in Henson et al. (2023). Data from the 3 gliders were inter-calibrated prior to ship calibration. Estimates of primary production are made from the glider data and photosynthetic properties observed during a coincident cruise, following the methods of Mignot et al. (2018). The 2D glider profile data are interpolated into 1 m depth bins for all variables; data are provided for every profile.

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