Bay of Biscay

(Baie de Quiberon)

Port of departure : Quiberon (France)

Port of return : Quiberon (France)

IFREMER / STATION DE LA TRINITE

Station Ifremer de Lorient

12 rue des Résistants

56470 La Trinité-sur-Mer

+33 (0)2 97 30 19 19

• MARINE GEOSCIENCES
• ENVIRONMENT

• -Geoswath (250 kHz) interferometric sounder: using backscattering to simultaneously acquire an acoustic (sonar type) image and fine-scale bathymetry with resolution of less than one metre.
  -Chirp sediment sounder (1.8 to 5.4 kHz): determining the deep sedimentary layers (vertical definition of about 20cm). Thickness and shape of surface layers and benthic populations (crepidula, oysters, etc.).
  -ER60 multibeam echosounder at 120 kHz combined with Simrad RoxAnn system.
  -The RoxAnn system can characterize types of seabed by processing the acoustic signal received by a bathymetric sounder. It supplies the hardness and roughness coefficients for the seafloor.
  

Geodetic system : WORLD GEODETIC SYSTEM 1984 = WGS84

Positioning system : GPS cinématique

• Summary of RISCOSED cruise