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| Gula, Jonathan; Blacic, Tanya M.; Todd, Robert E.. |
| Seismic images and glider sections of the Gulf Stream front along the U.S. eastern seaboard capture deep, lens‐shaped submesoscale features. These features have radii of 5–20 km, thicknesses of 150–300 m, and are located at depths greater than 500 m. These are typical signatures of anticyclonic submesoscale coherent vortices. A submesoscale‐resolving realistic simulation, which reproduces submesoscale coherent vortices with the same characteristics, is used to analyze their generation mechanism. Submesoscale coherent vortices are primarily generated where the Gulf Stream meets the Charleston Bump, a deep topographic feature, due to the frictional effects and intense mixing in the wake of the topography. These submesoscale coherent vortices can transport... |
| Tipo: Text |
Palavras-chave: Submesoscale coherent vortices; Glider; Seismic observations; Gulf Stream; Topographic interactions; Charleston Bump. |
| Ano: 2019 |
URL: https://archimer.ifremer.fr/doc/00484/59597/62599.pdf |
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| Charria, Guillaume; Lamouroux, Julien; De Mey, Pierre. |
| Designing optimal observation networks in coastal oceans remains one of the major challenges towards the implementation of future efficient Integrated Ocean Observing Systems to monitor the coastal environment. In the Bay of Biscay and the English Channel, the diversity of involved processes (e.g. tidally-driven circulation, plume dynamics) requires to adapt observing systems to the specific targeted environments. Also important is the requirement for those systems to sustain coastal applications. Two observational network design experiments have been implemented for the spring season in two regions: the Loire River plume (northern part of the Bay of Biscay) and the Western English Channel. The method used to perform these experiments is based on the ArM... |
| Tipo: Text |
Palavras-chave: Design of in situ observation network; Bay of Biscay; English Channel; Glider; FerryBox. |
| Ano: 2016 |
URL: http://archimer.ifremer.fr/doc/00324/43545/43102.pdf |
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| Many, Gael; Bourrin, Francois; Durrieu De Madron, Xavier; Pairaud, Ivane; Gangloff, Aurelien; Doxaran, David; Ody, Anouck; Verney, Romaric; Menniti, Christophe; Le Berre, David; Jacquet, Matthias. |
| 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 (1.25–250 μm) and a LISST-HOLO (20–2000 μm), 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 ~ 5000 m3 s− 1) and strong wind conditions favored the dispersal of the river plume... |
| Tipo: Text |
Palavras-chave: Gulf of Lions; Rhone River; ROFI; Turbid structures; Particle properties; Glider. |
| Ano: 2016 |
URL: https://archimer.ifremer.fr/doc/00307/41809/41011.pdf |
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| Ferraris, M.; Berline, Leo; Lombard, F.; Guidi, L.; Elineau, A.; Mendoza-vera, J. M.; Lilley, M. K. S.; Taillandier, V.; Gorsky, G.. |
| The scyphozoan Pelagia noctiluca reproduces by direct development without a benthic stage. Typically, this jellyfish is found offshore with a holoplanktonic lifecycle, vertical migration and feeding behaviours. Frequent outbreaks have been well documented on the Mediterranean shores since the 19th century; however, the offshore distribution of this species remains mostly unknown. In this study, we performed a bimonthly monitoring of P. noctiluca surface density, at high resolution, from a sailboat, along a 35-km coastal to offshore transect in the Ligurian Sea, between February and October 2011. During daylight, P. noctiluca was rarely seen. At night, offshore, P. noctiluca was always present, while within 5 km of the coast, P. noctiluca was rarely... |
| Tipo: Text |
Palavras-chave: Jellyfish; Diel vertical migration; Mauve stinger; Blooms; Gelatinous zooplankton; Surface observations; Glider. |
| Ano: 2012 |
URL: https://archimer.ifremer.fr/doc/00192/30285/28761.pdf |
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| Cyr, Frédéric; Tedetti, Marc; Besson, Florent; Beguery, Laurent; Doglioli, Andrea M.; Petrenko, Anne A.; Goutx, Madeleine. |
| The MiniFluo-UV is a new glider-compatible optical sensor for measurements of dissolved organic matter (DOM) in natural waters. The working principle, sensor design and challenges faced during the validation phase are reported. The first in situ application of the sensor during three glider deployments in the NW Mediterranean sea (spring, summer, and fall) are also presented. For these campaigns, the two channels of the sensor were adjusted to target Tryptophan-like (excitation/emission wavelengths λEx/λEm: 275/340 nm) and Phenanthrene-like (λEx/λEm: 255/360 nm) fluorescence. These were chosen because they represent fluorophores of interest commonly found in seawater. While Tryptophan (an amino-acid believed to be a by-product of biological activity) is... |
| Tipo: Text |
Palavras-chave: MiniFluo-UV; Fluorescence; Glider; Dissolved organic matter; Tryptophan; Phenanthrene; Mediterranean Sea. |
| Ano: 2017 |
URL: https://archimer.ifremer.fr/doc/00654/76597/77747.pdf |
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| Gentil, Mathieu; Many, Gaël; Durrieu De Madron, Xavier; Cauchy, Pierre; Pairaud, Ivane; Testor, Pierre; Verney, Romaric; Bourrin, François. |
| The recent integration of Acoustic Doppler Current Profilers (ADCPs) onto underwater gliders changes the way current and sediment dynamics in the coastal zone can be monitored. Their endurance and ability to measure in all weather conditions increases the probability of capturing sporadic meteorological events, such as storms and floods, which are key elements of sediment dynamics. We used a Slocum glider equipped with a CTD (Conductivity, Temperature, Depth), an optical payload, and an RDI 600 kHz phased array ADCP. Two deployments were carried out during two contrasting periods of the year in the Rhone River region of freshwater influence (ROFI). Coastal absolute currents were reconstructed using the shear method and bottom tracking measurements, and... |
| Tipo: Text |
Palavras-chave: Glider; Optics; Acoustics; Satellite; Coastal hydrodynamics; Suspended particulate matter; Particulate fluxes; Gulf of Lions; Mediterranean. |
| Ano: 2020 |
URL: https://archimer.ifremer.fr/doc/00648/76039/76962.pdf |
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| Ego Gliders Data Management Team,. |
| This document is the EGO quality control manual for CTD (Conductivity, Temperature, Depth) and BGC (BioGeoChemical) data. It describes two levels of quality control. - The first level is the real-time system that performs a set of agreed automatic checks. Adjustment in real-time can also be performed and the real-time system can evaluate quality flags for adjusted fields. - The second level is the delayed-mode quality control system. Please note that at the present time, official quality control procedures don’t exist for all BGC parameters. This document will be updated as soon as other procedures are available. |
| Tipo: Text |
Palavras-chave: Glider. |
| Ano: 2017 |
URL: http://archimer.ifremer.fr/doc/00403/51485/52070.docx |
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