Ship Request

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  Pisagua eq imaging  -  2016  -  Marcus Langseth  
  Project Information  
Project Title: A high-resolution controlled-source seismic experiment to elucidate geologic controls on megathrust slip: the 2014 Pisagua, Chile earthquake sequence as a natural laboratory Project Status: Submitted
Principal Investigator: Anne M. Trehu, OSU_COAS Project Institution: OSU_COAS
Project ID: 104549 Version #: 2
Date Submitted: 8/13/2014 10:25:00 AM Created By: Anne M. Trehu
Date Last Modified: 2/4/2016 1:46:00 PM URI Serial #: None
Funding Agencies: NSF/OCE/MGG - 1459368 - Funded
Summary of Field Work: Deploy and recover ocean bottom seismometers.
Acquire 2D deep crustal multichannel seismic reflection data along 2 250-km-long profiles and in a 150x250 km grid.
Shots will also be recorded by OBSs to generate a 3D tomographic model.
Additional OBSs will be deployed by the R/V Sonne (Germany) so coordination of ship schedules will be needed if both ships are funded. However there are back-up scenarios in which the R/V Marcus Langseth schedule does not need to be coordinated with another ship.
Summary of Facility Requirements: Project requires maximum volume tuned airgun array and 8-km-long hydrophone streamer. We will also want to acquire XBTs, swath bathymetry, gravity and magnetics.
Summary of other requirements and comments:  
Ship Request Identification
Type of Request: Primary Ship Use Request Status: Submitted
Request ID: 1007286 Created By: Anne M. Trehu
Date Last Modified: 2/4/2016 1:46:00 PM Date Submitted: 8/13/2014 10:25:00 AM
Requested Ship, Operating Days and Dates
Year: 2016 Ship/Facility: Marcus Langseth
Optimum Start Date: 1/15/2016 Dates to Avoid: There are no severe weather restrictions for this region.
Earliest Start Date: 11/1/2016 Multi-Ship Op: Yes
Latest Start Date: 6/30/2018 Other Ship(s): The optimum scenario proposed involved two ships, with a second ship to deploy OBSs provided by GEOMAR. However, there are alternative scenarios in case both ships cannot be scheduled at the same time. One possible scenario has the R/V Marcus Langseth operating alone. We are also exploring the possible use of a new Chilean research vessel to deploy OBSs.

Operating Days Needed: Science Days Mob Days De-Mob Days Estimated Transit Days Total Days
43 5 3 2 53
Repeating Cruise?
(within same year)
No Interval:   # of Cruises:  

Description of Repeating cruise requirements: .
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations:
Work Area for Cruise
Short Description of Op Area
for use in schedules:
northern Chile
Description of Op Area: Northern Chile continental margin, extending up to 250 km offshore.
Op Area Size/Dia.: 10935
  Lat/Long Marsden Grid Navy Op Area
18.5° S / 70.5° W map
343 map
SP03A map
22° S / 72.5° W map
379 map
SP03A map
  Show Degrees Minutes    
Foreign Clearance and Permitting Requirements
Foreign Clearance Required? Yes Coastal States:

 Important Info on Foreign Research Clearances  

Are you or any member in your science party bringing in any science equipment items which are regulated for export by the International Traffic in Arms Regulations (ITAR) and/or the Export Administration Regulations (EAR)?
No If yes, have you applied for the necessary permits through your export control office? No
 Questions about ITAR/EAR regulations?

Comments about foreign clearance requirements or
description of any other special permitting requirements
(e.g., MMPA, ESA, IHA, Marine Sanctuaries, etc.)
Port Calls
Requested Start Port Intermediate Port(s) Requested End Port
Iquique, Chile None, , None, Iquique, Chile
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops

 Important Info on Working in Foreign Ports

Science Party
Chief Scientist: Anne M. Trehu, OSU_COAS
# in Science Party 35 # of different science teams 3 # Marine Technicians to be
provided by ship operator:
(include in science party total)
Explanation of Science Party Requirements and Technician Requirements LDEO technicians are needed to operate the airgun array and MCS and other data acquisition systems.
OBSIP technicians will be needed to operate the OBSs.
The balance of the science party will be faculty and students from Oregon State, GEOMAR, Universidad de Chile (the primary partners in this proposal) and from other universities as space allows.
Instrumentation Requirements That Impact Scheduling Decisions
Selected Dynamic PositioningSelected ADCPSelected MultibeamSelected Seismic
Unselected Dredging/Coring/Large Dia. Trawl WireUnselected Stern A-frameUnselected Fiber Optic (.681)Unselected 0.680 Coax Wire
Unselected SCUBA DivingUnselected Radioisotope use - briefly describeUnselected NO Radioisotope use/Natural level workUnselected Other Operator Provided Inst. - Describe
0 PI-Provided Vans - briefly describe Unselected MOCNESS  
Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling.

The seismic capabilities are the R/V Marcus Langseth are essential for this project.

Major Ancillary Facilities (that require coordination of schedules with ship schedule)
Unselected Helicopter Ops (USCG)Unselected Twin OtterUnselected Unmanned Aerial Systems (UAS) 
Autonomous Underwater Vehicle (AUV)
Unselected Other AUVUnselected Sentry  
Coring Facility
Unselected Jumbo Piston CoringUnselected Large Gravity Core Unselected MC800 multicorer w/ MISO camera/telemetryUnselected OSU Coring Facility (MARSSAM)
Unselected Other Large Coring FacilityUnselected WHOI Long Core  
Human Occupied Vehicle (HOV)
Unselected AlvinUnselected Clelia (HBOI)Unselected JSL I & II (HBOI)Unselected Other HOV
Other Facility
Unselected MISO Facility - deep-sea imagingUnselected Other FacilitySelected Potential Fields Pool Equipment 
Remotely Operated Vehicle (ROV)
Unselected JasonUnselected Other ROV  
Seismic Facility
Unselected Ocean Bottom Seismograph Instrument Center (OBSIC)Selected Ocean Bottom Seismograph Instrument Pool (OBSIP)Unselected Ocean-Bottom Seismometer Program (UTIG)Unselected Other Seismic/OBS Facility
Selected PASSCALUnselected Portable MCS groupUnselected Portable MCS/SCS groupUnselected U.S. Geological Survey Ocean Bottom Seismometer Facility (USGS at WHOI)
Towed Underwater Vehicle
Unselected ARGO IIUnselected Hawaii MR1 (HMRG)Unselected IMI12 (HMRG)Unselected IMI120 (HMRG - formerly DSL 120A)
Unselected IMI30 (HMRG)Unselected Other Towed Underwater VehicleUnselected Towfish 
UNOLS Van Pool
Unselected AUV Lab Van #1Unselected Clean Lab VanUnselected Cold Lab VanUnselected General Purpose Lab Van
Unselected Radioisotope Lab VanUnselected Wet Lab Van  
UNOLS Winch Pool
Unselected Mooring SpoolerUnselected Portable WinchUnselected Turn Table 
Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems.

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