The aims of this cruise were to elucidate the processes responsible for controlling iodocarbon concentrations and provide a dataset that can be used to develop modelled estimates of iodocarbon sea-air fluxes in tropical Atlantic waters.
<p>The Protevs Swot 2018 campaign aimed to explore the South Balearic zone in early spring to observe the small scales of the oceanic mixed layer using high-resolution sampling devices.</p> <p>The area was chosen because it was positioned below the SWOT satellite's planned swath in its validation/calibration period. In this sense, it is a precursor experiment of experiments for the year 2022 and as such exploratory of the scales that will be observable by this newly designed altimetry satellite.</p> <p>A particular focus was placed on an anticyclonic structure in the southern Balearic Islands that is systematically detectable by altimetry but which appears to be an artifact.</p> <p>These samplings were combined with fine analysis of the surface content of small phytoplankton by flow cytometry to study the shaping of the marine landscape by frontal physical processes.</p> <p> </p>
Characterizing the variability of hydrological and current features and particulate fluxes on the continental rise of the Gulf of Lion and in the deep convection zone. Monitoring of deep benthic communities in the western canyons and on the continental rise of the Gulf of Lion.
CD170 was a collaborative cruise with the Knorr cruise KN182_2. The latter cruise was conducted between 2 May 2005 and 26 May 2005. These cruises were completed as part of the UK Natural Environment Research Council (NERC) funded RAPID Programme and the US National Science Federation (NSF) funded MOCHA Programme to monitor the Atlantic Meridional Overturning Circulation at 26.5 degrees North. The primary purpose of both cruises was to service the 26.5 degrees North mooring array deployed in 2004 during RRS Discovery cruises D277 and D278. These cruises are the first annual refurbishment of this array.
Technological trials run on seismic equipment developed by the SERCEL firm.
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).
Participation in validating the CAROLS airborne L band radiometer, during flights on ATR42. CTD/LADCP stations performed on repeated sections around the Bay of Biscay and calibration of CTD tags intended for deployment on sea elephants. The related projects are CAROLS, SMOS (TOSCA/CNES and ESA), EPIGRAM (LEFE/IDAHO).
Transit.
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 318b were to (i) recover four ADCP moorings, three adjacent temperature-logger moorings and STABLE, from 750-1000m depth east of Portimao Canyon (ii) perform deep water CTD casts (iii) carry out seismic sections using the NMF supplied Bolt airgun and streamer, accompanied by regular XBT and less frequent XCTD casts, iv) work with MV Poseidon to test novel seismic data acquistion strategies. In addition underway data was logged including ship-borne ADCP, surface temperature and salinity, meteorology, gravity and magnetics (to test new NERC magnetometers).
Hydrography and physical oceanography cruise for the French Navy's hydrographic and oceanographic service (SHOM).