Water column data from 2 XSV launched during the GEOPRICO cruise.

Modelo digital de elevación

-Validation of surface salinity measurements using drifting buoys. Three models of drifting buoys (17 buoys in all) were deployed in the Bay of Biscay on 2 April (R/V Thalassa trip) and on 2-3 May (COSMOS1 aboard Côtes de la Manche). This involved passing close to the buoys, taking samples, TSG measurements and CTD hauls to validate the data. Two sections taken by CTD probe in front structure eddy (for the CONGAS programme). Retrieval of a prototype PROVOR-CTS3 float deployed in May by the Côte d'Aquitaine vessel. 9 CTD sensors to be attached to elephant seals were tested (mounted on SBE25 CTD during profiles). This falls under the COSMOS project, headed by J. Boutin and G. Reverdin.

Identifying possible bioconstructions and other geo-morphological structures of interest. Biological fish studies and hidrographic sampling (CTD) over the seamounts

The goal of this cruise was to recover and redeploy some RAPID-MOC moorings near the Eastern Boundary as part of our six-month turnaround programme. Specific cruise objectives were to: 1. Recover moorings EB1 (24 microcats) and EB2 (MMP profiling from 50m to 2500m with microcats and current meters below), two principal tall eastern boundary moorings, sited on a Topex crossover point near 24N, 24W. 2. Redeploy EB1 (24 inductive microcats plus the telemetry system) and EB2 (MMP mooring). 3. Deploy EBADCP to replace the instrument deployed in April but trawled after 10days and recovered by the R/V Poseidon. 4. Deploy two URI Pressure Inverted Echo Sounders. One deployed in 1000m and one in 5000m next to the BPR lander at mooring EB1. 5. CTD stations for pre and post deployment calibrations of all mooring instrumentation. 6. Search for and if possible recover MMP mooring EB2 deployed in April 2004 and located 100km north south of Gomorra in October 2004.