Téthys II

Téthys II, photo by Dugornay Olivier (2021)
History
France
NameTéthys II
OwnerIfremer
OperatorGenavir
Port of registryFrance
BuilderPiriou, Concarneau, France
Completed1993
Identification
StatusActive as of 2025
General characteristics
Class & typeresearch vessel
TypeFishing vessel specialized in coastal oceanographic research
Displacement224 tonnes
Length24.90 m
Beam7.50 m
Draught3.20 m
Propulsionconventional diesel electric, POYAUD UD 25V12 478 kW at 1300 rpm
Speed11 knots
Endurance10 days at 11 knots
Capacity
  • As a category 2 vessel (up to 200 nautical miles from a safe haven): 8 scientists, technicians, and hydrographers
  • For trips at sea lasting up to 24 h and in accordance with category 3 rules (up to 20 nautical miles from a safe haven): 12 scientists, technicians, and hydrographers
  • Two scientific laboratories: total surface area 14 m2
  • Scientific office space on the bridge: 3 m2
  • Afterdeck surface area: 22 m2
  • Space for one 10 ft container on the afterdeck
Crew7
Sensors &
processing systems
  • Echo sounder, Simrad EA600, dual frequency 12 kHz & 200 kHz
  • Echo sounder, JMC F-3000, dual frequency 50 kHz & 200 kHz
  • GPS, 2 antennas, HEMISPHERE VS330 (position, heading and attitude; screens available on DB9 sockets on the bridge, in the wet lab and in the dry lab)
  • ADCP, hull fitted, RDI 75 kHz (acquisition of current data)
  • Weather station Batos Météo France
  • Fluorometer, 10-AU-005-CE, Turner Designs
  • Thermosalinometer, SBE 21
  • Boom for acoustic equipment

Téthys II is a French oceanographic research vessel owned by Ifremer. It is used for scientific research mainly in the Mediterranean Sea, with missions lasting around ten days and up to 200 miles from the port. Téthys II is equipped with instruments for marine geosciences, physical oceanography, biological oceanography, biogeochemistry, and marine chemistry.[1][2][3][4] Its twin vessel is the Côtes de la Manche.[5]

See also

References

  1. ^ "Téthys II". French oceanographic fleet. Retrieved 2025-04-27.
  2. ^ "Téthys II". www.infras-campusmer.fr. Retrieved 2025-09-07.
  3. ^ "On a pris la mer avec les vigies de la Méditerranée". CNRS Le journal (in French). Retrieved 2025-09-07.
  4. ^ "Eight months of seafloor geodetic data from Etna's wet feet. What secrets does she have this time?". PRE-COLLAPSE. Retrieved 2025-09-07.
  5. ^ "Téthys II | Ifremer". www.ifremer.fr. Retrieved 2025-09-07.
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