NetCDF mean underwater glider data collected in the Northern Benguela during February - June 2018. Part 2: optical backscattering and fluorescence data


Binned mean optical data of Slocum G2 glider data from the surface to 1000 m depth collected between 14 February – 19 June 2018 in the northern Benguela upwelling system around -18.14 N, 10.91 E. Glider bio-optical data was collected using a Seabird WETLabs ECO-puck BB2FL measuring optical backscattering at 700 nm and chlorophyll fluorescence at around 20 cm vertical resolution. Full-resolution backscattering data were partitioned into a small particle fraction (refsmall variable) and a large particle fraction (spikes variable) following the methods of Henson et al. (2023, doi:10.1016/j.dsr2.2023.105274), adapted from Briggs et al. (2011). The same method was applied to chlorophyll fluorescence to identify highly fluorescent spikes in the signal. The glider data (both partitioned and non partitioned, i.e. combined signal) were then binned into 6 hourly, 2 m depth bins. This data originates from the same glider of the data published here: A full description of the glider mission and binned glider data for temperature, salinity and oxygen can be found at the above link.

NetCDF file containing the following variables:> mtime: time mid-point of the bins, in datenum form. Datenum is a serial date number that represents the whole and fractional number of days from a fixed, preset date (January 0, 0000) in the proleptic ISO calendar. The 1 January 2018 has datenum value = 737061. By subtracting this number, the user can calculate the progressive day of the year for each bin.> depth: depth mid-point of the bins in meters.> bbp700_mean: binned mean of optical backscattering at 700nm> fluorescence_mean: binned mean of chlorophyll fluorescence signal> bbp700_spikes_mean: binned mean of large (spikes) particle fraction from optical backscattering at 700 nm> fluorescence_spikes_mean: binned mean of chlorophyll fluorescence spikes signal> bbp700_refsmall_mean: binned mean of small (background) labile+refractory particle fraction from optical backscattering at 700 nm> fluorescence_refsmall_mean: binned mean of chlorophyll fluorescence background signal

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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 2024
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; Data access is restricted (moratorium, sensitive data, license constraints);
OpenAccess false
Resource Type Dataset
Format application/x-hdf
Size 11.5 MBytes
Discipline Basic Biological and Medical Research; Biology; Life Sciences; Omics