Ship Request

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  Patton Seismicity  -  2015  -  Robert Gordon Sproul  
  Project Information  
Project Title: Constraining seismicity on the Patton Escarpment and testing of next-generation ocean-bottom seismology instrumentation. A University of California Ship Funds proposal. Project Status: Submitted
Principal Investigator: Adrian Doran, UCSD Project Institution: UCSD
Project ID: 104645 Version #: 2
Date Submitted: 12/2/2014 12:05:00 PM Created By: Adrian Doran
Date Last Modified: 4/10/2015 2:21:00 PM URI Serial #: None
Funding Agencies: INST/UCSD/SIO - NONE - Funded
Summary of Field Work: Characterization of local seismicity and the ambient noise spectrum on the Patton Escarpment, offshore southern California, as well as development of next-generation ocean-bottom seismology instrumentation.

This project will be comprised of three primary objectives. First, we will continue testing of the Autonomously Deployed Deep-Ocean Seismic System (ADDOSS) project by providing a three-month deep-water testing site to complete the proof-of-concept. Second, we will deploy three OBS packages around the Patton Escarpment, an understudied region at the edge of the California Borderlands that could potentially contain significant seismic activity. Third, we will conduct an echo-sounding survey on a 10km line to image the subsurface sediments. The results of our ongoing seafloor compliance study in the region contrasts sharply with the results of a previous Deep Sea Drilling Project well, and this survey will allow us to image subsurface sediment variations that are crucial to our interpretation.

The work will be divided into two cruises, each three days and separated by three months. The first cruise will deploy all of the seismic instruments. The second cruise will be used for recovery, and will also conduct the echo-sounding survey. The cruises are scheduled to maximize the data recording window, as well as to record data during the period with as little background noise contamination as possible.
Summary of Facility Requirements: We will use the Knudsen 3260 3.5 kHz chirp system currently installed on the R/V Robert Gordon Sproul for a 10km echo-sounding survey. We will also deploy four ocean-bottom seismometer (OBS) packages furnished by the ocean-bottom seismometer instrument pool (OBSIP) for three months. The R/V Sproul has adequate storage space, A-frame, deck space, and equipment to facilitate this study.
Summary of other requirements and comments: This proposal is pending funding approval from the UC Ship Funds program, and will support graduate research, data collection, and instrumentation.
Ship Request Identification
Type of Request: Primary Ship Use Request Status: Submitted
Request ID: 1007433 Created By: Adrian Doran
Date Last Modified: 4/10/2015 2:21:00 PM Date Submitted: 12/2/2014 12:05:00 PM
Requested Ship, Operating Days and Dates
Year: 2015 Ship/Facility: Robert Gordon Sproul
Optimum Start Date: 6/20/2015 Dates to Avoid:  
Earliest Start Date: 2/1/2015 Multi-Ship Op: No
Latest Start Date: 9/1/2015 Other Ship(s):

Operating Days Needed: Science Days Mob Days De-Mob Days Estimated Transit Days Total Days
2 0 0 1 3
Repeating Cruise?
(within same year)
Yes Interval: Two three-day cruises # of Cruises: 2

Description of Repeating cruise requirements: We request two three-day cruises, separated by approximately three months for instrument deployment. This allows for the maximum time to record data while minimizing the background noise contamination at our sites. The optimal deployment period is from June to September, but the dates are flexible.
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:
Cal. Borderland
Description of Op Area: Patton Escarpment, edge of continental shelf offshore California
Op Area Size/Dia.:  
  Lat/Long Marsden Grid Navy Op Area
32.71° N / 117.162° W map
120 map
NP09 map
32.71° N / 117.162° W map
120 map
NP09 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
San Diego, CA, USA None San Diego, CA, USA
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: Adrian Doran, UCSD
# in Science Party 7 # 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 The scientific party will consist of the PI, the faculty advisors, and three engineers: one to operate the Knudsen echo-sounder, one to prepare the OBS deployment, and one to operate the electronics.
Instrumentation Requirements That Impact Scheduling Decisions
Unselected Dynamic PositioningUnselected ADCPUnselected 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 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.

We require use of the Knudsen 3260 3.5 kHz echo sounder, which is already installed on the R/V Robert Gordon Sproul. We will also use OBS packages provided by OBSIP.

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 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.
OBSIP, partially run by SIO, will furnish the required OBS packages for this project.

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