Ship Request

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  Chukchi Plate  -  2011  -  USCGC Healy  
  Project Information  
Project Title: Plate Boundaries around the Chukchi Borderland; An Integrated Geophysics Cruise to test Models for the Formation of Canada Basin Project Status: Submitted
Principal Investigator: Bernard Coakley, UAF_G&G Project Institution: UAF_G&G
Project ID: 101798 Version #: 3
Date Submitted: 11/18/2008 4:09:00 PM Created By: Bernard Coakley
Date Last Modified: 3/25/2010 7:07:00 PM URI Serial #: None
Funding Agencies: NSF/OPP/ARC - 0909568 - Funded
Summary of Field Work: The Chukchi Borderland is a block of extended continental crust embedded in the oceanic crust of the Canada Basin. As the piece that does not fit the simple “windshield wiper” model for the Mesozoic opening of this basin, it figures prominently in all tectonic models proposed for the opening of the Amerasian Basin. With multi-channel seismic (MCS) reflection technique, it is possible to test these hypotheses from the US Coast Guard Cutter (USCGC) Healy. Observing the edges of the Chukchi Borderland during an integrated cruise with MCS, gravity, swath bathymetry, and seismic refraction data would make it possible to further constrain models for the opening of the Amerasian Basin.
By imaging the sedimentary section and tracing the continuity of structure, crustal thickness and stratigraphy across the edges of this high-standing continental block, it should be possible to distinguish between strike-slip, extensional and compressional boundaries. By tying the basinal stratigraphy to the well-dated sediments on the Chukchi Shelf (eg. the Shell exploration well Popcorn, among others), it will be possible to propagate seismic stratigraphic age control into the Arctic Ocean basin to date the extensional dissection of the Borderland and lay the groundwork for scientific drilling.
Summary of Facility Requirements: Require SIO portable MCS system.
Will bring on PI-supplied towing gear for MCS data acquisition in the pack ice as well as sonobuoys and sonobuoy receivers.
Also will require Knudsen 320 B/R sub-bottom profiler, POS/MV ship's positioning system and Bell BGM-3 gravimeter.
Given remote deployment, loss of science is likely outcome of equipment loss or failure. Request dual compressors and spare airguns.
Request dual ~500 cu in or similar volume G guns. To maintain balance on ice towing system these guns should be identical or nearly so.
Summary of other requirements and comments: Require SIO portable MCS system.

Will bring on PI-supplied towing gear for MCS data acquisition in the pack ice as well as ~200 sonobuoys.

Request additional spares compared to what would be deployed with a typical cruise. Remote deployment requires redundancy and the ability to repair equipment locally.
Ship Request Identification
Type of Request: Primary Ship Use Request Status: Submitted
Request ID: 1002529 Created By: Bernard Coakley
Date Last Modified: 3/25/2010 7:07:00 PM Date Submitted: 11/18/2008 4:09:00 PM
Requested Ship, Operating Days and Dates
Year: 2011 Ship/Facility: USCGC Healy
Optimum Start Date: 9/1/2011 Dates to Avoid: The schedule is largely dictated by the need to be on the Northern Chukchi in mid-September, the time of the annual ice minimum.
Earliest Start Date: 8/15/2011 Multi-Ship Op: No
Latest Start Date: 9/7/2011 Other Ship(s):

Operating Days Needed: Science Days Mob Days De-Mob Days Estimated Transit Days Total Days
26 1 0 7 34
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:
Description of Op Area: Mid-Chukchi Shelf to the northern limit of the Chukchi Borderland and slightly beyond.
Op Area Size/Dia.: ~500
  Lat/Long Marsden Grid Navy Op Area
71.85455° N / 165.806917° W map
269 map
AR06 map
71.85455° N / 165.806917° W map
269 map
AR06 map
  Show Degrees Minutes    
Foreign Clearance and Permitting Requirements
Foreign Clearance Required? No 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
Barrow, AK, USA Dutch Harbor, AK, USA Seattle, WA, USA
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops
Request Dutch Harbor to facilitate loading MCS equipment and other gear as well as boarding the science party. Request stop in Nome to debark science party while Healy is en route South. If another cruise follows, Barrow is acceptable for debarking. Assume this late season cruise will be demobilized in Seattle, after USCG Healy returns home.

 Important Info on Working in Foreign Ports

Science Party
Chief Scientist: Bernard Coakley, UAF_G&G
# in Science Party 20 # of different science teams 1 # Marine Technicians to be
provided by ship operator:
(include in science party total)
Explanation of Science Party Requirements and Technician Requirements Need technicians to maintain and operate MCS system 7/24 as well as watchstanders, data processors and other cruise participants.

Assume operator provided technicians will be provided by LDEO as for previous cruises to support multi-beam and ship's data logging and by USCG to support on board data acquisition system.
Instrumentation Requirements That Impact Scheduling Decisions
Unselected Dynamic PositioningUnselected 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.

Also request use of on board Bell BGM-3 gravimeter(s) and Knudsen sub-bottom profiler system.

Request dredges on board to sample any basement outcrops imaged in MCS or chirp data.

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 FacilityUnselected Potential Fields Pool Equipment 
Remotely Operated Vehicle (ROV)
Unselected JasonUnselected Other ROV  
Seismic Facility
Unselected Ocean Bottom Seismograph Instrument Center (OBSIC)Unselected Ocean Bottom Seismograph Instrument Pool (OBSIP)Unselected Ocean-Bottom Seismometer Program (UTIG)Unselected Other Seismic/OBS Facility
Unselected PASSCALUnselected Portable MCS groupSelected 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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