Particle assemblage characterization in the Rhone River ROFI. Many, G., Bourrin, F., Durrieu de Madron, X., Pairaud, I., Gangloff, A., Doxaran, D., Ody, A., Verney, R., Menniti, C., Le Berre, D., & Jacquet, M. Journal of Marine Systems, 157:39–51, May, 2016. ![Particle assemblage characterization in the Rhone River ROFI [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex An innovative experiment was carried out in the vicinity of the Rhône River mouth in February 2014. An instrumental package, composed of a CTD, a LISST-100 type B (1.25–250μm), and a LISST-HOLO (20–2000μm), was used to characterize the hydrological parameters and suspended particles properties (concentration, size, composition, shape, and effective density) in the region of freshwater influence (ROFI) of the Rhône River. Besides, a coastal SLOCUM glider, equipped with a CTD and optical backscattering sensors at several wavelengths, was deployed to detail the spatial description of the hydrological parameters and some particle properties. Large river discharge (annual flood \textasciitilde5000m3s−1) and strong wind conditions favored the dispersal of the river plume on the shelf. Surface suspended particulate matter concentrations decreased rapidly seaward from 20mgL−1 next to the river mouth to 1.5mgL−1 at the shelf break. A persistent bottom nepheloid layer was observed across the shelf with concentrations decreasing from 8mgL−1 at the coast to 1mgL−1 at the shelf break. Observations showed that most of suspended particles were mainly flocculated in micro and macro-flocs (30–400μm) in inner-shelf waters. The particle assemblage in the Rhône River plume and in the bottom nepheloid layer became progressively finer seaward and the associated effective density increased from 370 to 1600kgm−3. Outside the plume, planktonic organisms increasingly contributed to the total volume concentration. Finally, we demonstrated the ability of gliders, equipped with optical backscattering sensors at several wavelengths, to describe the fine scale distributions of suspended particles, and provide an index of their size distribution.
@article{many_particle_2016,
title = {Particle assemblage characterization in the {Rhone} {River} {ROFI}},
volume = {157},
issn = {0924-7963},
url = {http://www.sciencedirect.com/science/article/pii/S0924796315002353},
doi = {10.1016/j.jmarsys.2015.12.010},
abstract = {An innovative experiment was carried out in the vicinity of the Rhône River mouth in February 2014. An instrumental package, composed of a CTD, a LISST-100 type B (1.25–250μm), and a LISST-HOLO (20–2000μm), was used to characterize the hydrological parameters and suspended particles properties (concentration, size, composition, shape, and effective density) in the region of freshwater influence (ROFI) of the Rhône River. Besides, a coastal SLOCUM glider, equipped with a CTD and optical backscattering sensors at several wavelengths, was deployed to detail the spatial description of the hydrological parameters and some particle properties. Large river discharge (annual flood {\textasciitilde}5000m3s−1) and strong wind conditions favored the dispersal of the river plume on the shelf. Surface suspended particulate matter concentrations decreased rapidly seaward from 20mgL−1 next to the river mouth to 1.5mgL−1 at the shelf break. A persistent bottom nepheloid layer was observed across the shelf with concentrations decreasing from 8mgL−1 at the coast to 1mgL−1 at the shelf break. Observations showed that most of suspended particles were mainly flocculated in micro and macro-flocs (30–400μm) in inner-shelf waters. The particle assemblage in the Rhône River plume and in the bottom nepheloid layer became progressively finer seaward and the associated effective density increased from 370 to 1600kgm−3. Outside the plume, planktonic organisms increasingly contributed to the total volume concentration. Finally, we demonstrated the ability of gliders, equipped with optical backscattering sensors at several wavelengths, to describe the fine scale distributions of suspended particles, and provide an index of their size distribution.},
urldate = {2019-04-15},
journal = {Journal of Marine Systems},
author = {Many, Gaël and Bourrin, François and Durrieu de Madron, Xavier and Pairaud, Ivane and Gangloff, Aurélien and Doxaran, David and Ody, Anouck and Verney, Romaric and Menniti, Christophe and Le Berre, David and Jacquet, Matthias},
month = may,
year = {2016},
keywords = {Gulf of Lions, Glider, Rhône River, ROFI, Particle properties, Turbid structures},
pages = {39--51}
}
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An instrumental package, composed of a CTD, a LISST-100 type B (1.25–250μm), and a LISST-HOLO (20–2000μm), was used to characterize the hydrological parameters and suspended particles properties (concentration, size, composition, shape, and effective density) in the region of freshwater influence (ROFI) of the Rhône River. Besides, a coastal SLOCUM glider, equipped with a CTD and optical backscattering sensors at several wavelengths, was deployed to detail the spatial description of the hydrological parameters and some particle properties. Large river discharge (annual flood \\textasciitilde5000m3s−1) and strong wind conditions favored the dispersal of the river plume on the shelf. Surface suspended particulate matter concentrations decreased rapidly seaward from 20mgL−1 next to the river mouth to 1.5mgL−1 at the shelf break. A persistent bottom nepheloid layer was observed across the shelf with concentrations decreasing from 8mgL−1 at the coast to 1mgL−1 at the shelf break. Observations showed that most of suspended particles were mainly flocculated in micro and macro-flocs (30–400μm) in inner-shelf waters. The particle assemblage in the Rhône River plume and in the bottom nepheloid layer became progressively finer seaward and the associated effective density increased from 370 to 1600kgm−3. Outside the plume, planktonic organisms increasingly contributed to the total volume concentration. 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An instrumental package, composed of a CTD, a LISST-100 type B (1.25–250μm), and a LISST-HOLO (20–2000μm), was used to characterize the hydrological parameters and suspended particles properties (concentration, size, composition, shape, and effective density) in the region of freshwater influence (ROFI) of the Rhône River. Besides, a coastal SLOCUM glider, equipped with a CTD and optical backscattering sensors at several wavelengths, was deployed to detail the spatial description of the hydrological parameters and some particle properties. Large river discharge (annual flood {\\textasciitilde}5000m3s−1) and strong wind conditions favored the dispersal of the river plume on the shelf. Surface suspended particulate matter concentrations decreased rapidly seaward from 20mgL−1 next to the river mouth to 1.5mgL−1 at the shelf break. A persistent bottom nepheloid layer was observed across the shelf with concentrations decreasing from 8mgL−1 at the coast to 1mgL−1 at the shelf break. 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