RV Marcus G. Langseth
| File:LDEO Langseth.jpg RV Marcus G. Langseth, operated by the Lamont–Doherty Earth Observatory | |
| History | |
|---|---|
| Owner | National Science Foundation |
| Operator | Columbia Climate School, Lamont–Doherty Earth Observatory |
| Builder | Ulstein (Norway) |
| Launched | 15 June 1991 |
| Completed | 1991 |
| Acquired | 2004 |
| Identification |
|
| Status | Active |
| Notes | Originally constructed as a seismic vessel the Marcus G. Langseth was modified and outfitted to perform the tasks required of a general purpose research vessel. |
| General characteristics | |
| Tonnage | 3,834 GT |
| Displacement | 2578.4 |
| Length | 71.5 m (234 ft 7 in) |
| Beam | 17.0 m (55 ft 9 in) |
| Draft | 5.9 m (19 ft 4 in) |
| Ice class | Baltic IA |
| Installed power | 2 x shaft generators 1665 KVA each |
| Propulsion | 2 x Bergen BRG-6 2650 kW/3550 hp (each); 1 x Tunnel 590 kW/800 hp bow thruster |
| Speed | 13 knots (24 km/h; 15 mph) max |
| Crew | 20 crew, 35 scientific |
RV Marcus Langseth is a research vessel operated by the Lamont–Doherty Earth Observatory (LDEO) of Columbia University as a part of the University-National Oceanographic Laboratory System (UNOLS) fleet.[1][2] The Marcus G. Langseth was dedicated on December 4, 2007, came into service in early 2008, replacing the RV Maurice Ewing.[3]
Marcus G. Langseth is intended primarily to collect multichannel seismic data, including 3-D surveys. The ship was purchased from the geophysical survey company WesternGeco in 2004, having previously been named Western Legend.[citation needed] The Marcus G. Langseth was named for Marcus G. Langseth, a Lamont scientist.[citation needed]
In March 2009, Chinese authorities denied the vessel permission to pass between Taiwan and China.[4] In August 2009, Marcus G. Langseth was named in a Canadian lawsuit seeking to halt its seismic tomography experiment.[5] The lawsuit was dismissed, diplomatic clearance was issued and the ship sailed after a delay of a day.[6][7]
References
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External links
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