Particles Volume scattering, backscattering, POC, phytoplankton carbon, using backscattering sensor [BB3] (WETLabs ECO-BB3) during the Tara Pacific Expedition 2016-2018


The Tara Pacific expedition (2016-2018) sampled coral ecosystems around 32 islands in the Pacific Ocean, and sampled the surface of oceanic waters at 249 locations, resulting in the collection of nearly 58,000 samples. The expedition was designed to systematically study corals, fish, plankton, and seawater, and included the collection of samples for advanced biogeochemical, molecular, and imaging analysis. Here we provide the continuous dataset originating from backscattering sensor [BB3] (WETLabs ECO-BB3) instruments acquiring continuously during the full course of the campaign. Surface seawater was pumped continuously through a hull inlet located 1.5 m under the waterline using a membrane pump (10 LPM; Shurflo), circulated through a vortex debubbler, a flow meter, and distributed to a number of flow-through instruments. The backscattering sensor [BB3] (WETLabs ECO-BB3) was added to the underway system to measure the volume scattering function [VSF] at 124° and 3 wavelengths (470, 532, 650 nm). The flow was automatically directed through a 0.2 µm filter for 10 minutes every hour before being circulated through the [BB3] allowing the calculation of particulate backscattering [bbp] by removing the signal due to dissolved matter, drift, and biofouling (Slade et al. 2010, doi:10.1175/2010JTECHO755.1). The particulate organic carbon concentration [poc] was estimated by applying an empirical relation between measured [poc] and [bbp] (Cetinić et al. 2012, doi:10.1175/2010JTECHO755.1). Phytoplankton organic carbon [cphyto] was estimated by an empirical relationship with [bbp] (Graff et al. 2015, doi:10.1016/j.dsr.2015.04.006).

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Creator Bourdin, Guillaume ORCID logo; Boss, Emmanuel ORCID logo; Haëntjens, Nils ORCID logo; Lombard, Fabien ORCID logo; Gorsky, G ORCID logo; Moulin, Clémentine; Iwankow, Guillaume; Boissin, Emilie (ORCID: 0000-0002-4110-790X); Poulain, Julie ORCID logo; Romac, Sarah; Agostini, Sylvain ORCID logo; Banaigs, Bernard; Bowler, Chris ORCID logo; De Vargas, Colomban ORCID logo; Douville, Eric ORCID logo; Flores, J Michel (ORCID: 0000-0003-3609-286X); Forcioli, Didier ORCID logo; Furla, Paola (ORCID: 0000-0001-9899-942X); Galand, Pierre E ORCID logo; Gilson, Eric; Pesant, Stephane ORCID logo; Reynaud, Stéphanie; Sullivan, Matthew B; Sunagawa, Shinichi ORCID logo; Thomas, Olivier ORCID logo; Troublé, Romain; Vega Thurber, Rebecca; Voolstra, Christian R ORCID logo; Wincker, Patrick; Zoccola, Didier ORCID logo; Allemand, Denis; Planes, Serge ORCID logo
Publisher PANGAEA
Publication Year 2022
Rights Creative Commons Attribution 4.0 International;
OpenAccess true
Resource Type Dataset
Format text/tab-separated-values
Size 6020692 data points
Discipline Earth System Research
Spatial Coverage (-4.634W, -35.879S, 109.454E, 51.660N); Pacific Ocean
Temporal Coverage Begin 2016-11-14T22:06:00Z
Temporal Coverage End 2018-10-26T12:02:00Z