Ship Request

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  AACSE  -  2019  -  Global  
  Project Information  
Project Title: Alaska Amphibious Community Seismic Experiment (AACSE) Project Status: Submitted
Principal Investigator: Geoffrey Abers, Cornell Project Institution: Cornell
Project ID: 105386 Version #: 11
Date Submitted: 7/22/2016 12:42:00 PM Created By: Geoffrey Abers
Date Last Modified: 7/30/2019 2:56:00 PM URI Serial #: None
Funding Agencies: NSF/OCE/MGG - 1654568 - Funded
Summary of Field Work: AACSE is a shoreline-crossing community seismic experiment around the Alaska Peninsula. The Alaskan Peninsula was identified as a top priority site to address questions fundamental to GeoPRISMS and EarthScope goals at the recent Amphibious Array Facilities Workshop. The GeoPRISMS primary site work, deployment of TA stations in Alaska and the availability of a large pool of both shallow and deep water instruments following the Cascadia Initiative present a unique opportunity to advance understanding of the fundamental solid-earth systems. This proposal, developed through open invitations and public review, funds data collection and rapid release to the community in response to a recent NSF Dear Colleague Letter of March 2016.

The deployment will include 75 broadband OBS instruments and 30 broadband land instruments, recording for 15 months in 2018-19. The array includes a dense transect in the Kodiak/Katmai region from the far outer rise to the distal backarc, covering the megathrust in between. The OBS instruments include 20 shielded sensors intended for deployment in shallow water, on the shelf south of the Alaska peninsula. All shallow-water instruments and approximately nine deepwater instruments will include Absolute Pressure Gauges, will five OBSs and six land sites will include accelerometers, all to capture large local earthquakes without clipping and possible slow slip events. Deep-water instruments will be concentrated on the inner slope between shelf and trench from Kodiak to past the Shumagin Islands, or will be distributed south on the Pacific Plate within 300 km of the trench. Instruments are provided by OBSIP, from multiple instrument centers (LDEO, WHOI).

NSF indicates likely ship availability for the necessary global-class ships in May-June 2018 for the deployment cruise, and Aug-Sep 2019 for the recovery cruise, and we plan our deployment accordingly. OBSIP anticipates two deployment cruises of 19 and 20 days in 2018, with ports of Dutch Harbor and Kodiak, and two 14-day recovery days in 2019 with the same ports, provided global-class ships are available. The 25 shallow-water instruments would be the LDEO TRM design and sufficient deck space is needed to deploy these in 50-250 water depth, to be lowered by heave-compensated winch. Part of the OBSIP support includes adding redundant pop-up buoys which should make all OBS’s recoverable from ship without needing ROV’s. We expect TRM recovery to be comparable to successful popup recoveries in Cascadia.

Each cruise will be staffed by two PIs in addition to the regular OBSIP and technical support staff. Also, we plan open Apply-to-sail programs to fill 7 berths in each cruise with graduate students, postdocs or faculty with little OBS experience, teachers and science writers. One of the 2019 cruises would have an undergraduate-focused Apply-to-sail program, making use of 11 berths.
Summary of Facility Requirements: The deployment and recovery of the 75 OBS for a 15 month period will each require two cruises, four total. We propose to deploy and recover the OBS using a global-class vessel available on the west coast. The Sikuliaq is a viable option. We require a vessel with sufficient deck space to accommodate up to 45 OBS’s and in particular the 20 TRM’s. We require dry/wet lab space for staging the instruments. To deploy the TRM’s we require addition of a heave-compensated winch, with a large crane or A-frame for deploying and recovering instruments, and JASON for recovery. Multibeam capability will greatly facilitate successful siting of many OBS's and provide important ancillary data.
Summary of other requirements and comments: Timing of these two cruises needs to be coordinated with OBSIP instrument and support availability. Our deployment plan relies on OBS deployment for two summers and the intervening winter, so late spring 2018 (May) is needed for the first deployment cruise. That timing would necessitate the two recovery cruises take place in August-September 2019. Later years are also not feasible because this project is designed to be synchronous with the deployment of the onshore EarthScope Transportable Array in Alaska, 2017-2019.
Ship Request Identification
Type of Request: Primary Ship Use Request Status: Submitted
Request ID: 1008672 Created By: Geoffrey Abers
Date Last Modified: 7/30/2019 2:56:00 PM Date Submitted: 7/22/2016 12:42:00 PM
Requested Ship, Operating Days and Dates
Year: 2019 Ship/Facility: Global
Optimum Start Date: 8/26/2019 Dates to Avoid: Second of 2 cruises to recover OBS's in 2019 summer Alaska weather window. These OBSs are deployed in July 2018 and operate 14-15 months, so this late date maximized data recovery.
 
 
Earliest Start Date: 7/21/2019 Multi-Ship Op: No
Latest Start Date: 9/10/2019 Other Ship(s): Global or Sally Ride - good deep-water bathymetry

Operating Days Needed: Science Days Mob Days De-Mob Days Estimated Transit Days Total Days
16 1 2 1 20
Repeating Cruise?
(within same year)
No Interval:   # of Cruises:  

Description of Repeating cruise requirements: Weather, OBS battery lifetime, and coordination with onshore seismology deployments. Specifically, these OBSs are to be deployed July 2018 and have up to 15 months battery life; given the Alaska weather window a mid-late Sept 2019 recovery is requested.
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations:
Ship choice: need deck space for up to 30 broadband OBS and support, space for OBS recovery. Need multibeam capable of deep-water operation.
Dates/Coordination: OBS battery life is 14-15 months. These OBSs are to be deployed July 2018 and have up to 15 months battery life; given the Alaska weather window a mid-late Sept 2019 recovery is requested.
Number of days: Based on OBSIP estimate and assumption of Kodiak-Kodiak ports. Additional 2 days included to allow multibeam mapping in deep water, which was unavailable in earlier cruises.
Work Area for Cruise
Short Description of Op Area
for use in schedules:
Alaska Penin.
Description of Op Area: South of Alaska Peninsula, Kodiak to Cold Bay, 150W to 161W, including all of shelf and extending 250 km south of trench.
Op Area Size/Dia.: 400 nm x 250 nm
 
  Lat/Long Marsden Grid Navy Op Area
Beginning
52° N / 161° W map
197 map
NP05 map
Ending
58° N / 154° W map
196 map
NP06 map
  Show Degrees Minutes    
Foreign Clearance and Permitting Requirements
Foreign Clearance Required? No Coastal States:

US EEZ
 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.)
OBSIP handles
Port Calls
Requested Start Port Intermediate Port(s) Requested End Port
Kodiak, AK, USA None Kodiak, AK, USA
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops
This cruise recovers OBS's that are in deep water off Kodiak and the Alaska Peninsula. Kodiak is closest to array and minimizes transit. Seward is used for 2018 deployment legs and has easy access for shipping, it would would increase transit by 1 day.

 Important Info on Working in Foreign Ports

 
Science Party
Chief Scientist: Geoffrey Abers, Cornell
# in Science Party 16 # of different science teams 1 # Marine Technicians to be
provided by ship operator:
(include in science party total)
2
Explanation of Science Party Requirements and Technician Requirements Party: Party: 2 chiefs (chief: Abers, co-chief: P. Haeussler); 7 apply-to-sail participantst, 6 OBSIP techs, 2 ship techs. Other tech's should include 2 for 24 hr crane operations, depending on ship policy.
Instrumentation Requirements That Impact Scheduling Decisions
Unselected Dynamic PositioningUnselected ADCPSelected MultibeamUnselected 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 workSelected 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.

OBSIP. OBSIP will provide more details on needs.

Major Ancillary Facilities (that require coordination of schedules with ship schedule)
Aircraft
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)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.
Cruise 2 recovers 30 broadband OBS's so requires full OBSIP support. Need multibeam for site resurvey.

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