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  • Open Access
    Authors: 
    Flores, J Michel; Bourdin, Guillaume; Lombard, F; Koren, Ilan; Vardi, Assaf; Gorsky, G; Moulin, Clémentine; Iwankow, Guillaume; Boissin, Emilie; Poulain, Julie; +23 more
    Publisher: PANGAEA
    Project: TARA | Tara Pacific (4)

    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 scanning mobility particle sizer ([SMPS], SMPS-C GRIMM Aerosol Technik Ainring GmbH & Co. KG, Ainring, Germany) instruments acquiring continuously during the full course of the campaign. Aerosols pumped through one of the ([MAST-PUMP]) inlets were channeled through a conductive tubing of 1.9 cm inner diameter to four parallel 47mm filter holders installed in the rear hold using a vacuum pump (Diaphragm pumpME16 NT, VACUUBRAND BmbH & Co KG, Wertheim, Germany) at a minimum flow rate of 30 lpm (20lpm prior to may 2016). Air was conducted to a scanning mobility particle sizer ([SMPS], SMPS-C GRIMM Aerosol Technik Ainring GmbH & Co. KG, Ainring, Germany) measuring particles in the size range 0.025 – 0.70 µm. The SMPS was set to perform a full scan of particle distribution every 5 min. Data from [SMPS] are averaged at the 30 minute scale and provided both at the scale of particle concentration (nb cm-3) together with its normalized size distribution (dN/dlogDp (nb cm-3) i.e., the concentration divided by the log of the width of the bin).

  • Open Access English
    Authors: 
    Flores, J Michel; Bourdin, Guillaume; Lombard, F; Koren, Ilan; Vardi, Assaf; Gorsky, G; Moulin, Clémentine; Iwankow, Guillaume; Boissin, Emilie; Poulain, Julie; +22 more
    Publisher: PANGAEA - Data Publisher for Earth & Environmental Science
    Project: TARA | Tara Pacific (4)

    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 an optical particle counter ([EDM]; EDM180 GRIMM Aerosol Technik Ainring GmbH & Co. KG, Ainring, Germany) instrument acquiring continuously during the full course of the campaign. Aerosols pumped through one of the ([MAST-PUMP]) inlets were channeled through a conductive tubing of 1.9 cm inner diameter to four parallel 47mm filter holders installed in the rear hold using a vacuum pump (Diaphragm pumpME16 NT, VACUUBRAND BmbH & Co KG, Wertheim, Germany) at a minimum flow rate of 30 lpm (20lpm prior to may 2016). Air was conducted to an optical particle counter ([EDM]; EDM180 GRIMM Aerosol Technik Ainring GmbH & Co. KG, Ainring, Germany) measuring and counting particles in the size range 0.25 - 32 µm every 60 seconds.

  • Open Access
    Authors: 
    Kelly, Rachel Lauren; John, Seth G; Cohen, Natalie R; Hawco, Nicholas J; Pinedo-Gonzalez, Paulina; Lombard, F; Bourdin, Guillaume; Pesant, Stephane; Gorsky, G; Consortium, Tara Pacific;
    Publisher: PANGAEA
    Project: TARA | Tara Pacific (4)

    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 total dissolvable (i.e. acidified unfiltered whole seawater) Fe, Zn, Mn, Ni, Cd, Co, Cu, and Pb concentrations for 242 surface seawater samples. Trace metal analyses were performed with the goals of characterizing the surface seawater trace metal distribution across the open ocean and coastal regions in both the Atlantic and Pacific, and exploring metal-dependent ecosystem structure and metabolism. Some of the findings include high concentrations of iron (Fe) and manganese (Mn) in several regions, such as the North Atlantic Ocean and near the South Pacific islands, possibly due to Saharan dust and hydrothermal vent input, respectively. Elevated lead (Pb) was found in the North Pacific near southeast Asia, where anthropogenic sources may contribute. We also observe interbasin differences in concentrations for most of the metals, such as cobalt (Co), which is relatively high in the North Atlantic in comparison to the Pacific, perhaps due to dust deposition or continental weathering. There are also intrabasin differences in metal concentrations between oligotrophic and upwelling regions, exemplified by the higher cadmium (Cd) concentrations near the Peruvian coast, likely due to upwelling. Overall we captured high-resolution trace metal data that depicts the nuances in the metal distribution of the global ocean.

  • Open Access
    Authors: 
    Reverdin, Gilles; Le Goff, Hervé; Bourdin, Guillaume; Lombard, F; Gorsky, G; Moulin, Clémentine; Iwankow, Guillaume; Boissin, Emilie; Poulain, Julie; Romac, Sarah; +23 more
    Publisher: PANGAEA
    Project: TARA | Tara Pacific (4)

    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 the thermosalinograph [TSG] instrument 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. A thermosalinograph [TSG] (SeaBird Electronics SBE45/SBE38), measured temperature, conductivity, and thus salinity. Salinity measurements where intercalibrated against unfiltered seawater samples [SAL] taken every week from the surface ocean, and corrected for any observed bias. Moreover, temperature and salinity measurements were validated against Argo floats data collocated with Tara.

  • Open Access English
    Authors: 
    Bourdin, Guillaume; Boss, Emmanuel; Haëntjens, Nils; Lombard, F; Gorsky, G; Moulin, Clémentine; Iwankow, Guillaume; Boissin, Emilie; Poulain, Julie; Romac, Sarah; +22 more
    Publisher: PANGAEA - Data Publisher for Earth & Environmental Science
    Project: TARA | Tara Pacific (4)

    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).

  • Open Access
    Authors: 
    Fabien Lombard; Guillaume Bourdin; Stephane Pesant; Emilie Boissin; Julie Poulain; Sarah Romac; Maria Luiza Pedrotti; Nicolas Cassar; Pascal Conan; Eric Douville; +45 more
    Publisher: PANGAEA
    Project: TARA | Tara Pacific (4)
  • Open Access
    Authors: 
    Flores, J Michel; Bourdin, Guillaume; Lombard, F; Koren, Ilan; Vardi, Assaf; Gorsky, G; Moulin, Clémentine; Iwankow, Guillaume; Boissin, Emilie; Poulain, Julie; +22 more
    Publisher: PANGAEA
    Project: TARA | Tara Pacific (4)

    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 an optical particle counter ([EDM]; EDM180 GRIMM Aerosol Technik Ainring GmbH & Co. KG, Ainring, Germany) instrument acquiring continuously during the full course of the campaign. Aerosols pumped through one of the ([MAST-PUMP]) inlets were channeled through a conductive tubing of 1.9 cm inner diameter to four parallel 47mm filter holders installed in the rear hold using a vacuum pump (Diaphragm pumpME16 NT, VACUUBRAND BmbH & Co KG, Wertheim, Germany) at a minimum flow rate of 30 lpm (20lpm prior to may 2016). Air was conducted to an optical particle counter ([EDM]; EDM180 GRIMM Aerosol Technik Ainring GmbH & Co. KG, Ainring, Germany) measuring and counting particles in the size range 0.25 - 32 µm as a 30 minutes average, both the particle concentration (nb cm-3) together with its normalized size distribution (dN/dlogDp (nb cm-3 log(nm)-1) i.e., the concentration divided by the log of the width of the bin).

  • Open Access
    Authors: 
    Bourdin, Guillaume; Iwankow, Guillaume; Lombard, F; Pesant, Stephane; Moulin, Clémentine; Boissin, Emilie; Poulain, Julie; Romac, Sarah; Agostini, Sylvain; Banaigs, Bernard; +20 more
    Publisher: PANGAEA
    Project: TARA | Tara Pacific (4)

    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 dataset obtained with a small CTD probe (Castaway CTD) deployed from the dinghy down to the reef (generally ~5 to 10m) to record temperature and conductivity profiles.

  • Open Access English
    Authors: 
    Douville, Eric; Bourdin, Guillaume; Lombard, F; Gorsky, G; Fin, Jonathan; Metzl, Nicolas; Pesant, Stephane; Consortium, Tara Pacific;
    Publisher: PANGAEA - Data Publisher for Earth & Environmental Science
    Project: TARA | Tara Pacific (4)

    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 results of carbonate chemistry for seawater samples collected during the expedition at the offshore and inshore sampling stations as well as at coral sampling sites (a few meters from studied colonies). The sampling protocol was described by Gorsky et al. (2019). Briefly, unfiltered seawater was collected once a week during the cruise and poisoned with Hg2Cl2 before to be stored on TARA board (356 samples). Like for TARA-Ocean expedition (Picheral et al, 2014) Total Alkalinity (TA) and Total Inorganic Carbon (TC) were measured at the SNAPO-CO2 facility at LOCEAN laboratory (Paris, France) and analyzed simultaneously by potentiometric titration derived from the method developed by Edmond (1970) using a closed cell. Calibrated Certified Reference Material (CRM, Dickson et al, 2007) were regularly analyzed (CRM Batches 155, 173 and 182). Analytical accuracy of the TA and TC concentrations is ±3 µmol.kg-1. Additional parameters of the carbonate system were calculated with CO2SYS.m v3.1.1 (Feb 2021: https://github.com/jonathansharp/CO2-System-Extd) using measured TA-TC data, in-situ seawater salinity and temperature measured at each seawater sampling, and local phosphate and silicate concentrations as inputs.

  • Open Access
    Authors: 
    Bourdin, Guillaume; Boss, Emmanuel; Haëntjens, Nils; Lombard, F; Gorsky, G; Moulin, Clémentine; Boissin, Emilie; Iwankow, Guillaume; Poulain, Julie; Romac, Sarah; +22 more
    Publisher: PANGAEA
    Project: TARA | Tara Pacific (4)

    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 PAR sensor (Biospherical Instruments Inc. QCR-2150) acquiring continuously during the full course of the campaign and mounted at the stern of the boat (~7 m altitude).