[OBSIPtec] IRIS WEBINAR - R/V Langseth: Facilities - 10/29 1 PM Eastern

[Jessica Lodewyk]

*"R/V Langseth:  Facilities" will be presented at1 pm EDT(5 pm UTC) 
onWednesday, 10/29. *

Please register** if you intend to participate in the webinar live: 
https://attendee.gotowebinar.com/register/5709534447096702977 
<https://attendee.gotowebinar.com/register/5709534447096702977>

You will be emailed a confirmation containing a link for watching the 
live broadcast. Afterwards, IRIS will post the webinar 
here:http://www.youtube.com/user/IRISEnO 
<http://www.youtube.com/user/IRISEnO>. Access to older webinars and 
related materials and information are found at the webinar page 
(http://www.iris.edu/hq/webinar/ <http://www.iris.edu/hq/webinar/>), 
which is soon to be updated.

*Presenter: Sean Higgins (Director - Office of Marine Operations, 
Lamont-Doherty Earth Observatory)*

Abstract: The R/V Marcus G. Langseth (Langseth) is operated by Columbia 
University on behalf of the National Science Foundation (NSF). The 
Office of Marine Operations (OMO) located at the Lamont-Doherty Earth 
Observatory (L-DEO) manages the Langseth facility. The Langseth is a 
global class vessel that provides a unique 3D and 2D multi-channel 
seismic (MCS) imaging and general purpose oceanographic 
surveying capabilities to the UNOLS academic fleet and the science 
community. Purchased in 2004 and refit for both seismic and general 
oceanographic functions from 2005-2007, the Langseth began its 
operations at the end of 2007 with a series of shakedown and 
source calibration cruises.

The Langseth is one of the first academic ships in the world to have 3-D 
acoustic imaging capability. This ship is unique in that it serves as 
the U.S. National Marine Seismic Facility in the U.S. academic fleet. 
Its role in supporting research funded by the NSF and other U.S. 
Government Agencies along with others highlights the importance of 
marine seismology for U.S scientific research. The Langseth operations 
often very closely with OBSIP that manages the Ocean Bottom Seismometer 
pool that consists of instruments from SIO, WHOI, and L-DEO).

The Langseth began operations in 2008 and has successfully carried out 
more than 27 marine seismic projects around the globe. This has included 
work in the Arctic Ocean (Chukchi Sea), Bering Sea, Gulf of Alaska, 
Aleutians, offshore northwestern U.S., Marianas, Taiwan, Azores, Spain, 
Northwest and Central Pacific, Costa Rica, N. Atlantic, US East Coast 
and the Gulf of Mexico. Altogether, our science missions since 
2008 encompass almost 1500 operational days. These cruises have  science 
parties made up of scientists and students from the US and around the world.

The Langseth is equipped with flexible lab space and room for multiple 
lab vans and containers on multiple decks that has also allowed it to 
take on coring cruise in the Line Islands and support a 
multi-disciplinary Jason ROV operation in the Pacific NW. The science 
sonar pod on the hull of the vessel houses a Kongsberg EM122 (1x1 array) 
MB system, a Knudsen 3.5kHz Chirp SBP, and a Teledyne 75 Hz ADCP.  In 
addition, we deploy towed magnetometers, an onboard gravimeter, and 
routinely make surface pCO2 measurements with an uncontaminated seawater 
system.

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