Lovecchio, Elisa; Henson, Stephanie A; Carvalho, Filipa; Briggs, Nathan: NetCDF mean underwater glider data collected in the Northern Benguela during February - June 2018. Part 2: optical backscattering and fluorescence data [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.967162 (dataset in review)
Abstract:
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: https://doi.pangaea.de/10.1594/PANGAEA.938221
A full description of the glider mission and binned glider data for temperature, salinity and oxygen can be found at the above link.
Keyword(s):
Supplement to:
Lovecchio, Elisa; Henson, Stephanie A; Carvalho, Filipa; Briggs, Nathan (in prep.): Mesopelagic particle layers in the dynamic hypoxic northern Benguela are shaped by zooplankton activity.
Related to:
Lovecchio, Elisa; Henson, Stephanie A; Carvalho, Filipa; Briggs, Nathan (2023): NetCDF median glider data collected in the Northern Benguela during February - June 2018. PANGAEA, https://doi.org/10.1594/PANGAEA.938221
References:
Briggs, Nathan; Perry, Mary Jane; Cetinić, Ivona; Lee, Craig M; d'Asaro, Eric A; Gray, Amanda M; Rehm, E (2011): High-resolution observations of aggregate flux during a sub-polar North Atlantic spring bloom. Deep Sea Research Part I: Oceanographic Research Papers, 58(10), 1031-1039, https://doi.org/10.1016/j.dsr.2011.07.007
Henson, Stephanie A; Briggs, Nathan; Carvalho, Filipa; Manno, Clara; Mignot, Alexandre; Thomalla, Sandy J (2023): A seasonal transition in biological carbon pump efficiency in the northern Scotia Sea, Southern Ocean. Deep Sea Research Part II: Topical Studies in Oceanography, 208, 105274, https://doi.org/10.1016/j.dsr2.2023.105274
Lovecchio, Elisa; Henson, Stephanie A; Carvalho, Filipa; Briggs, Nathan (2022): Oxygen Variability in the Offshore Northern Benguela Upwelling System From Glider Data. Journal of Geophysical Research: Oceans, 127(11), https://doi.org/10.1029/2022JC019063
Project(s):
Funding:
European Research Council (ERC), grant/award no. 724416: Gauging ocean Organic Carbon fluxes using Autonomous Robotic Technologies
Natural Environment Research Council (NERC), grant/award no. NE/M020835/1: Controls over Ocean Mesopelagic Interior Carbon Storage
Swiss National Science Foundation (SNF), grant/award no. 184251: The influence of mesoscale variability on organic carbon export fluxes: bridging models and observations
Comment:
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
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Basic curation (CurationLevelB)
Size:
11.5 MBytes