Marion Dufresne (1995)

The Marion Dufresne II is a research and supply vessel named in honour of the 18th-century French explorer Marc-Joseph Marion du Fresne launched in 1995 and having two main missions: logistic support for the French Austral Islands and oceanographic research.[1]

History
France
Namesake: Marc-Joseph Marion du Fresne
Owner: CMA CGM The French Line
Operator: Institut polaire français Paul-Émile Victor (IPEV) for oceanography; Territory of the French Southern and Antarctic Lands (TAAF) for logistics
Port of registry: Le Havre
Builder: Ateliers et chantiers du Havre
Commissioned: 12 May 1995
Identification:
Nickname(s): Le Marduf
Status: in active service
General characteristics
Displacement:

4,900 tonnes (empty)

10,380 tonnes full load
Length: 120.50 m
Beam: 20.60 m
Draught: 6.95 m
Propulsion:
  • Diesel Electric
  • Two electric propulsion motors: 2,650 kW ea on two shafts
  • 750 kW bow thruster
  • Propulsion Electric Power: two 8-cylinder one 6-cylinder diesel engines
Speed:
  • 13.5 knots (25.0 km/h; 15.5 mph) (low consumption speed)
  • 15.7 knots (29.1 km/h; 18.1 mph)(cruising speed)
  • 17 knots (31 km/h; 20 mph) (full speed)
Endurance: 2 months
Capacity:
  • 110 passengers capacity in 59 cabins
  • 2500 tonnes, 5600m³ or 1106.1-metre standard containers of cargo
  • 1170 m³ of fuel
Complement:
  • 6 officers
  • 22 sailors
Aircraft carried: Heliport for one Eurocopter Dauphin, Eurocopter Écureuil, Aérospatiale Alouette II or Aérospatiale Alouette III
Notes: [1]

The Marion Dufresne II (IMO 9050814)[2] is chartered by the French TAAF on an annual basis from the French shipping line CMA CGM (The French Line) and is maintained by the IPEV (Institut polaire français - Paul-Émile Victor). The current Marion Dufresne II is the replacement for slightly smaller Marion Dufresne I that served the TAAF from 1973 to 1995.[1]

The ship was constructed by Ateliers et Chantiers du Havre of Normandy, France and delivered on 12 May 1995; it is registered out of the port of Marseille but its base of operations is the island of La Réunion.[1]

The Marion Dufresne was designed for the very severe weather conditions of the Southern Ocean. She possesses exceptional seakeeping behavior — allowing full performance in the very rough seas found there.[3]

Mission

The Marion Dufresne is used to service the districts of the Crozet and Kerguelen Islands, and the smaller islands of Amsterdam and St-Paul, delivering supplies, fuel, and personnel to the three permanently manned bases there: Alfred Faure (Port Alfred), Port-aux-Français, and Martin-de-Viviès.[3][4]

With the additional capacity as a logistics vessel, the Marion Dufresne, as a research vessel, is among the largest of the world fleet. Her accommodation options, freight handling, and endurance allow cruises and research campaigns of the most demanding sort.[3]

Due to an increasing scientific demand, in 1999 the French Ministry of Research reduced the ship time devoted to logistical operations to 120 days per year and allowed the IPEV to conduct research world-wide for the remaining 245 days a year. Therefore, the ship is no longer confined to the Indian Ocean and conducts research in all oceans. This has allowed for the development of integrated, multidisciplinary programs, for instance, spending several months in 1999 coring for paleo-climatic purposes in the North Atlantic.[4]

Ship facilities

With a capacity for 110 passengers in 59 cabins, the Marion Dufresne allows large scientific parties to embark on multidisciplinary programs. There is a hospital with operating theatre; pharmacy, video/conference center; library; gym and a ship's store.[4]

Propulsion

Diesel-Electric propulsion is provided by three Cegelec electric motors – one 750 kW bow thruster and two AC synchronous electric propulsion motors: 2,650 kW ea manufactured by GEC Alsthom Moteurs driving two propeller shafts. Electric power to run the motors is generated by two 8-cylinder (8R32D) and one 6-cylinder (6R32D) diesel engines, manufactured by the Finnish company Wärtsilä.[4]

Boats

The ship carries a complement of several smaller working boats on board. The largest is the container barge Gros Ventre ("Fat Belly"), named in honour of the fluyt Gros Ventre of the First voyage of Kerguelen; others include a small utility boat, a semi-rigid rubber raft, and a zodiac.[4] Naturally the vessel also carries the required types of life boats.

Aircraft

The Marion Dufresne possesses a helicopter platform and may carry one of a series of helicopters to ferry provisions and personnel from ship to shore. These may include the Eurocopter AS365 Dauphin, Eurocopter AS 350 Écureuil, and Aérospatiale Alouette II or III. These aircraft are leased from HeliLagon on Réunion.[4]

Heavy lifting

The vessel possesses two fast 25-ton cranes (45 tons when coupled), one logistic/ oceanographic 18-ton crane, and one 3-ton service crane.[4]

The ship's complement of navigation equipment includes:[5]

Environment

The ship's systems include:[5]

Information technology & communication

The vessel has a broad array of communication and computing technologies including:[5]

  • Computer workstations: Sun, HP, IBM
  • Desktop computers: DOS/Windows & Mac
  • Printers and plotters
  • Software: MATLAB, Generic Mapping Tools (GMT), Ifremer CARAIBES RT-PP sea floor mapping software
  • 10/100 Ethernet network/intranet
  • Video control room
  • Data acquisition and archiving
  • Two Inmarsat systems: M and B, (batched e-mail and data transmission via 64 kbit/s Inmarsat-B)
  • Iridium phone
  • Marine VHF transceiver

Science

Featuring modern facilities, it is operational in all fields of oceanography: marine geosciences, marine biology, oceanography, and the physics and chemistry of the oceans.[3]

Facilities

There are 31 laboratories with 650m² (6,997 sq. ft.) total surface area, plus the possibility of additional lab containers on the bridges and helicopter platform.[4]

Geophysics

The vessel possesses a full suite of geophysical equipment including multi-beam bathymetry and imagery and includes:[5]

  • Three bathymetric sounders:
  • Marine proton magnetometer
  • Gravimeter
  • Two continuous thermosalinographs (TSGs)
  • Two acoustic doppler current profiler (ADCP)
  • Conductivity, temperature, depth (CTD) rosette/ carousel (24 bottles)
  • Two seismic compressors

Coring

The Marion Dufresne with its giant corer Calypso, is one of the few ships to collect sediment cores up to 60 metres (200 ft) in length. Calypso is a Kullenberg type round piston corer adjustable 2 to 12-tonnes (2.2 - 13.2 tons) and 70 m (230 ft) long. There is also on board, the CASQ square gravity corer (25x25cm x12m long). Since 1995, a program involving 26 nations aims to collect and interpret paleoclimatic data from cores taken in all the world's oceans.[4]

Integrated rear heavy sampling (SIAM)

Over the stern sampling equipment includes:[5]

  • 33t capstan, compatible cable aramid (50 t)
  • Three x 7500m reels of cable, large diameter (up to 30 mm)
  • Two gantries 10/30 t long travel (back and side)
  • Three handling winches, cranes of 18 t 2 and t 3, winches, telescopic booms
  • Mobile platform equipped with 20-foot trawl winches and large diameter reels
  • Various samplers and dredges

Eco-tourism

In addition to the usual complement of scientists, researchers, technicians and construction workers, in recent years the Marion Dufresne has also played host to an increasing number of tourists (up to 14 per trip) who book passage for a period lasting about 28 days. A 9,000-km (5,590 mi.) passage includes guided tours of Crozet, Kerguelen, and Amsterdam Islands – with opportunities to view the local wildlife. The ship's cabin appointments are simple but comfortable, and several forms of entertainment and exercise are available on board. Meals served on board are considered to be of excellent quality; the dining room can seat up to 58 at a time in two seatings.[4]

Notable events

On 15 December 2008, the ship was involved in the rescue of Bernard Stamm, whose IMOCA Open 60 racing yacht Cheminées Poujoulat ran aground and sustained significant hull damage near the Kerguelen Islands during the 2008-2009 edition of the Vendée Globe round the world, single hand yacht race.[4]

On 14 November 2012, Marion Dufresne ran aground as she reached Crozet Islands as part of third resupply campaign of the year. The incident resulted in a 25-metre breach in the hull, flooding of two watertight compartments, and disabling of the bow thruster. The crew managed to control the damages and safely returned the vessel off the island. The 110 passengers were evacuated by the on-board helicopter to the small station located on the island. After being assessed for seaworthiness, repairs were effected at the Elgin Brown & Hamer shipyard in Durban, South Africa. A similar accident occurred in 2005.[6]

gollark: !DEPOSE!lyric.
gollark: Gibson is superior to LyricLy; Lyric bad.
gollark: Okay, well, you can, but please don't?
gollark: You may not.
gollark: No.

References
  1. "Le Marion Dufresne-Presentation". IPEV-Institut Polair Français-Paul Emile Victor. Retrieved 18 June 2012.
  2. "IMO SHIP NUMBER DATABASE". International Maritime Organization.
  3. "Le Marion Dufresne : Les missions du Marion Dufresne". IPEV-Institut Polair Français-Paul Emile Victor. Retrieved 18 June 2012.
  4. Mills, Ian C. "Marion Dufresne II". DiscoverFrance.net/Wharton Group. Retrieved 18 June 2012.
  5. "Le Marion Dufresne : Installations et équipements". IPEV-Institute Polair Français-Paul Emile Victor. Retrieved 19 June 2012.
  6. "Terres Australes: Le Marion Dufresne heurte un haut fond à Crozet". meretmarine.com. Retrieved 16 November 2012.

This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.