seanoe:56028 GARREAU Pierre IFREMER, Univ. Brest, CNRS UMR 6523, IRD, Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, 29280, Plouzané, France 2021-05-12 ISO 19115:2003/19139 1.0 High-resolution observations of a dual-core anticyclonic eddy in the Algerian Basin (PROTEVS-MED 2016) 2018 2021-05-12 Louazel Stephanie, Dumas Franck, Garreau Pierre (2018). High-resolution observations of a dual-core anticyclonic eddy in the Algerian Basin (PROTEVS-MED 2016). SEANOE. https://doi.org/10.17882/56028 Mesoscale dynamics in the Mediterranean Sea have been investigated for years and anticyclonic eddies are regularly observed features in the Algerian Basin. In early spring 2016, a field experiment during the ProtevsMed 2016 cruise thoroughly investigated this specific eddy, when it was located near the North Balearic Front, taking high-resolution (Seasoar) hydrological transects, several CTD casts and LADCP measurements. In addition, four drifting buoys were released in the eddy core. These in situ measurements revealed that the vertical structure of this anticyclone was made of two water lenses of very different origins (Atlantic Water above and Western Intermediate Water below) spinning together. In the vicinity of the North Balearic Front, which may act as a dynamical barrier for structures, the eddy interacted with a subsurface anticyclonic eddy made of modal water, which fostered cross-front exchanges generating filaments by stirring. The high-resolution sampling revealed fine scales structures both adjacent to the eddy and within its core. The eddy has been targeted from 21 March to 1 April 2016 taking advantage of a meteorological window. It has been sampled with:  - a towed undulating vehicle, the SeaSoar designed and built by Chelsea Instruments; it gets mounted on its sides two Sea-bird SBE-9 (SBE 3 temperature and SBE 4 conductivity sensors)  and a Wetlabs Fluorometer of type ChloroA WetStar  - CTD casts performed with a Sea-bird SBE-9 (SBE 3 temperature and SBE 4 conductivity sensor) and an RDI 150 kHz current profiler mounted in a general oceanics 12-place rosette, with12l Niskin bottles  - drifters with holey-sock positioned at 50 m deep below the expected Ekman layer thickness (remaining in the eddy until mid May). The authors acknowledge the financial support of the French Government Defense procurement and technology agency (DGA) through PROTEVS project . 
They thank the technical team at the French Naval Hydrologic and Oceanographic Service (SHOM), the crew of the French Navy ship Beautemps-Beaupré for their contribution to the field experiment LOUAZEL Stephanie SHOM, Service Hydrographique et Océanographique de la Marine, 13 rue de Chatellier, CS592803, 29228 Brest CEDEX2, France DUMAS Franck SHOM, Service Hydrographique et Océanographique de la Marine, 13 rue de Chatellier, CS592803, 29228 Brest CEDEX2, France GARREAU Pierre IFREMER, Univ. Brest, CNRS UMR 6523, IRD, Laboratoire d'Océanographie Physique et Spatiale (LOPS), IUEM, 29280, Plouzané, France SEANOE https://www.seanoe.org/data/00449/56028/illustration.gif Algerian Eddy High resolution transects Seasoar Anticyclonic Eddy North Balearic Front Sub-mesoscale Observations Physical oceanography Currents Pressure Salinity Sea temperature ODATIS aggregation parameters and Essential Variable names 2024-09-16 geonetwork.thesaurus.external.theme.NVS.OD1 Physical oceanography SeaDataNet Parameter Disciplines 2021-04-07 geonetwork.thesaurus.external.parameter.NVS.P08 /Observational data/in-situ Type de jeux de donnée ODATIS 2024-10-15 geonetwork.thesaurus.local.theme.type_jeux_donnee CC-BY-NC (Creative Commons - Attribution, No commercial usage) High-resolution observations and tracking of a dual-core anticyclonic eddy in the Algerian Basin 2018 Amer Geophysical Union Garreau Pierre Dumas Franck Louazel Stephanie Stegner A. Le Vu B. 10.1029/2017JC013667 oceans -5.822268 16.406784 34.564698 45.303122 2016-03-01 2016-05-31 CSV https://www.seanoe.org/data/00449/56028/data/57555.tar WWW:DOWNLOAD-1.0-link--download Raw data PROTEVS-MED2016 EDDY - 179 MB https://doi.org/10.17882/56028 WWW:LINK-1.0-http--metadata-URL DOI of the product https://www.seanoe.org/data/00449/56028/ rel-canonical Seanoe CTD and LADCP casts : - presure  (Sea-bird SBE-9 ; 0 at surface) - sea water temperature (Sea-bird SBE-9; SBE 3 temperature sensor) - sea water electrical conductivity (Sea-bird SBE-9; SBE 4 conductivity sensor)  - practical salinity units  (derived computation) - Currents velocities : RDI 150 kHz current profiler SEASOAR transects : - sea water temperature (Sea-bird SBE-9; SBE 3 temperature sensor) - sea water electrical conductivity (Sea-bird SBE-9; SBE 4 conductivity sensor)  - practical salinity units  (derived computation) SURFACE DRIFTERS : - geographical positions - surface temperature