Ship Request

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  San Andreas MT  -  2008  -  New Horizon  
  Project Information  
Project Title: Deep San Andreas Fault Boundary Structure from Marine Magnetotellurics Project Status: Submitted
Principal Investigator: Steven Constable, SIO Project Institution: SIO
Project ID: 101369 Version #: 3
Date Submitted: 12/21/2007 2:36:00 PM Created By: Steven Constable
Date Last Modified: 8/8/2008 12:55:00 PM URI Serial #: None
Funding Agencies: OTHER - Industry funding - Funded
Summary of Field Work: We will deploy 40 seafloor instruments and operate our EM transmitter from the New Horizon for the first leg, and then carry out a recovery cruise on the Sproul, reducing the total cost of the project. Transit to the deployment area at $121.5^{\circ}$W, $35^{\circ}$N from San Diego will require about 1.5 days time. During the first leg, we will deploy 40 EM receivers at an average rate of about 1-2 hours per instrument (3 days estimated) and tow SUESI (3 days). We will then transit back to San Diego and leave the EM receivers to record MT data undisturbed for 7-14 additional days. On the recovery cruise we will release instruments (10 minutes each), have an average rise time of 100 minutes (20~m/min in 2000~m water), and a transit time between stations of 20 minutes, to give an average recovery rate of 130 minutes per instrument, for a total recovery time of about 4 days. This is conservative -- if the next instrument along the line is within acoustic range, we may be able to halve this time and return early.

We have no particular constraints on the timing of the cruise. It would be nice to avoid the worst of the winter weather, since we will be operating outside the effect of Point Conception.
Summary of Facility Requirements: We will need a 0.680" electromechanical cable for our deeptow instrument. At this time we request the coaxial cable. It is possible that by the time this project is carried out, we will have upgraded our transmitter to use the fiber optic cable.
Summary of other requirements and comments:  
Ship Request Identification
Type of Request: Primary Ship Use Request Status: Submitted
Request ID: 1001779 Created By: Steven Constable
Date Last Modified: 1/15/2008 4:04:00 PM Date Submitted:  
Requested Ship, Operating Days and Dates
Year: 2008 Ship/Facility: New Horizon
Optimum Start Date: 6/1/2008 Dates to Avoid: No strong preference on time, but would prefer to avoid winter storms
Earliest Start Date: 4/1/2008 Multi-Ship Op: No
Latest Start Date: 11/1/2008 Other Ship(s):

Operating Days Needed: Science Days Mob Days De-Mob Days Estimated Transit Days Total Days
7 0 0 3 10
Repeating Cruise?
(within same year)
Yes Interval: 7-20 days # of Cruises: 2

Description of Repeating cruise requirements: We will want a recovery cruise on the Sproul about tow weeks after the deployment cruise on the NH.
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:
Central Calif.
Description of Op Area: Offshore central California, from coast to deep ocean
Op Area Size/Dia.: 100
  Lat/Long Marsden Grid Navy Op Area
35.5° N / 121° W map
121 map
NP09 map
34.3° N / 122.5° W map
121 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: Brent Wheelock, SIO
# in Science Party 17 # 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 We will be carrying out 24h deployments, but can probably manage with only one tech if Cambria Colt, in our science team, may
Instrumentation Requirements That Impact Scheduling Decisions
Unselected Dynamic PositioningUnselected ADCPUnselected MultibeamUnselected Seismic
Unselected Dredging/Coring/Large Dia. Trawl WireUnselected Stern A-frameSelected 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.

Right now we would need to use the 0680 coax, but may be ready to use the fiber optic cable before the cruise.

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.

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