Catálogo de datos del IEO
Category
Campañas extranjeras
130 record(s)
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Acoustic measurements.
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The cruise is a component of RAPID-WATCH, whose objectives are: to deliver a decade-long time series of calibrated and quality-controlled measurements of the Atlantic MOC from the RAPID-WATCH array and; to exploit the data from the RAPID-WATCH array and elsewhere to determine and interpret recent changes in the Atlantic MOC, assess the risk of rapid climate change, and investigate the potential for predictions of the MOC and its impacts on climate. Objectives of this cruise: to recover, calibrate and redeploy moorings from the eastern boundary and mid-Atlantic ridge subarrays of the 26.5N line of RAPID moorings.
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Characterizing the variability of hydrological and current measurement features and particulate fluxes in two canyons of Le Planier (station PL1000) and Lacaze-Duthiers (station LD1000) located at the easternmost and westernmost tips of the Gulf of Lion.
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Assessment of chemical contamination in coastal water masses (Spain, France, Italy), using artificial stations of mussels and passive sensors. The MYTILOS 1 cruise aimed to use the RINBIO network methodology around the western Mediterranean. Experiments done in the French Mediterranean since 1996 by IFREMER will be extended to Spanish and Italian Mediterranean coasts on the basis of a standardized protocol. The data will supplement those obtained in 2004 during the RINBIOC1 cruise by including the islands of the western basin, the south of Spain and Italy. In addition, the results will be used to complement the chemical contamination budget made in the framework of the European Water Framework Directive's implementation. The survey was based on 3 major actions: 1) Artificial mussel bed stations were placed and recovered along a shoreline between Malaga (Spain) and Rome (Italy), including the Balearic Islands, Sardinia and Sicily. 2) Gellyfish-type "passive" sensor stations were deployed along with some of the artificial mussel bed stations. 3) A study was run on the site of Livorno, taking bio-integrators, Posidonia and sediment samples to assess chemical contamination levels on 3 different matrices in the framework of the MONIQUA programme. This falls under the MEDICIS project.
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This equipment trials cruise has provided opportunities for test and verification of technology under development at the Proudman Oceanographic Laboratory (POL), the Scottish Association for Marine Science (SAMS) and the National Oceanography Centre, Southampton (NOC,S). This includes equipment developed during the first year of funding under OCEANS 2025 (theme 8). Testing technology in the ocean environment is invaluable in assessing fitness for purpose. Specifically, the cruise tested: A Spar wave buoy (NOC,S) biogeochemical sensors (NOC,S); an UAV system (NOC,S); a video grab system "HyBis" (NOC,S), A benthic Multicore (NOC,S), A benthic lander and associated torroidal Telemetry buoy (POL), and a shallow tow towfish (POL). Testing in Spanish waters (near Tenerife, Gran Canaria and Fuerteventura) has been invaluable. The time on passage has been minimised (the transition from deep to shallow water is less than a days steaming) and the calm conditions to the southwest of the islands in the consistent prevailing north easterly winds have enabled deployment and recovery techniques to be tried and optimised in safety.
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Overall objectives in the EU GO project are to assess the promising potential of seismic imaging for physical oceanography, in view of its combination of fine resolution and coverage unmatched by conventional oceanographic measurements. D318 was to provide the means of assessment by obtaining a unique, comprehensive, oceanographic and seismic dataset at the same time and place. Specific objectives for R.R.S. Discovery cruise 318a were to deploy four ADCP moorings, three adjacent temperature-logger moorings and STABLE, in an L-shape array in 750-1000m depth east of Portimao Canyon, carrying out adjacent CTD stations, deploy two OBH moorings, carry out seismic sections using the Ifremer high-frequency air-guns and streamer, accompanied by regular XBT and less frequent XCTD casts. In addition underway data was logged including ship-borne ADCP, surface temperature and salinity, meteorology, gravity and magnetics (to test new NERC magnetometers).
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Hydrography and physical oceanography cruise for the French Navy's hydrographic and oceanographic service (SHOM).
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The area in between the Audierne and St. Nazaire canyons (Gascogne) along the Armorican margin was one of the areas where the "massifs coralliens" were described for the very first time. Within the framework of the HERMES (EC FP6), MiCROSYSTEMS (ESF) and GeNeSis (FWO) projects, this area will be surveyed using multibeam and high resolution seismics during LEG 1. Based on this site survey, the ROV Genesis will be deployed to carry out detailed mapping of these deep-water "hot-spots". Also the hydrography and sediment dynamics of this area will be studied with respect to the steering of the present ecosystems. LEG 2 will focus on the Galicia bank. This location has been assigned as reference area within the ESF project BIOFUN. In addition to a bathymetric and seismic surveying, also biological sampling and experiments are planned here.
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<p style="text-align:justify">SHOM cruise with implementation of the MVP.</p>
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SHOM oceanographic cruise