NetCDF median glider data collected in the Northern Benguela during February - June 2018


Binned median of Slocum G2 glider data from 0 to 1000 m depth. The data were collected in the northern Benguela region between 14 February 2018 and 19 June 2018 at a site approximately 100 km from the coast. The glider sampled continuously following a triangular path of ~12 km per side roughly centred on 10.8°E, 18.1°S. The glider sampled only on the upward dive with a vertical resolution of ~20 cm, emerging 5 to 6 times per day. Temperature, Conductivity and Depth were measured with a standard Slocum Glider Payload CTD (pumped) from Seabird (SN 9109). Dissolved oxygen was measured with an Aanderaa optode, model 4831 (SN286). Depth-averaged currents (DAC) for each 1000 m downward and upward dive were estimated from the difference between the glider's actual and predicted surfacing locations. Glider surface currents were also estimated at each surfacing via linear regression of GPS location with respect to time. Salinity and oxygen data were calibrated against shipboard CTD bottle samples. The data have been binned (median) into 6 hourly, 2 m depth bins for all variables while the currents timeseries were binned daily (median). 1D variables consist of: time (seconds since 00:00:00 on 1 January 0000), depth (meters), longitude (degrees East), latitude (degrees South), zonal and meridional glider surface currents (U_surf and V_surf, m/s), and zonal and meridional glider depth averaged currents (U_dac and V_dac, m/s). 2D variables consist of: conservative temperature (°C), absolute salinity (g/kg), potential density (kg/m³), and dissolved oxygen concentration (µmol/kg).

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Metadata Access
Creator Lovecchio, Elisa ORCID logo; Henson, Stephanie A; Carvalho, Filipa ORCID logo; Briggs, Nathan ORCID logo
Publisher PANGAEA
Publication Year 2023
Funding Reference European Research Council Crossref Funder ID 724416 Gauging ocean Organic Carbon fluxes using Autonomous Robotic Technologies; Natural Environment Research Council Crossref Funder ID NE/M020835/1 Controls over Ocean Mesopelagic Interior Carbon Storage; Swiss National Science Foundation Crossref Funder ID 184251 The influence of mesoscale variability on organic carbon export fluxes: bridging models and observations
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format application/zip
Size 6.3 MBytes
Discipline Basic Biological and Medical Research; Biology; Life Sciences; Omics
Spatial Coverage (10.915 LON, -18.141 LAT); Benguela Upwelling System
Temporal Coverage Begin 2018-02-14T00:00:00Z
Temporal Coverage End 2018-06-19T00:00:00Z