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SoCal Hazards Survey
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2014
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Robert Gordon Sproul
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Project Title: |
Earthquake hazards of the Southern California Borderlands |
Project Status: |
Submitted |
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Principal Investigator: |
Daniel Brothers, USGS-PCMSC |
Project Institution: |
USGS_SantaCruz |
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Project ID: |
104571 |
Version #: |
2 |
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Date Submitted: |
9/9/2014 6:09:00 PM |
Created By: |
Daniel Brothers |
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Date Last Modified: |
12/3/2014 8:57:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
USGS - NONE - Funded |
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Summary of Field Work: |
High-resolution multichannel seismic reflection survey of active faults and submarine landslides offshore southern California. The USGS has a mission to understand offshore hazards and will be working cooperatively with scientists and students from UC Santa Cruz and Scripps. USGS will need a maximum of 6 berths; UC personnel will use remaining berths.
USGS will bring a 48-channel digital streamer, tail buoy, depth control birds and all peripheral topside computers. The streamer is roughly 350 m in length and will be towed behind the vessel. We will use a low-energy sparker acoustic source that falls within a permissible range described in the USGS Sound Source Categorical Exclusion Handbook. Sparker soundings will occur once every 3-5 seconds for the duration of the survey. |
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Summary of Facility Requirements: |
We will need a forklift and crane to load gear onto the R/V Sproul. |
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Summary of other requirements and comments: |
Once underway, we will be conducting 24-hr operations. |
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Type of Request: |
Collaborative Ship Use |
Request Status: |
Submitted |
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Request ID: |
1007322 |
Created By: |
Daniel Brothers |
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Date Last Modified: |
12/3/2014 8:56:00 PM |
Date Submitted: |
9/9/2014 6:09:00 PM |
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Year: |
2014
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Ship/Facility: |
Robert Gordon Sproul
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Optimum Start Date:
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11/13/2014 |
Dates to Avoid: |
avoid Thanksgiving (Nov 27-30), and if possible, avoid Veterans Day |
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Earliest Start Date: |
11/4/2014 |
Multi-Ship Op: |
No |
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Latest Start Date: |
11/13/2014 |
Other Ship(s): |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
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7 |
2 |
1 |
1 |
11 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
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Description of Repeating cruise requirements: |
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Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
Sproul is best option for high-resolution geophysical surveys offshore CA. It's the only vessel that is within USGS budget constraints. |
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Short Description of Op Area
for use in schedules: |
Southern Cal |
| Description of Op Area: |
Catalina Basin, Santa Cruz Basin |
| Op Area Size/Dia.: |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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32.933088° N
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117.773703° W
map
32° 55.98528' N
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117° 46.42218' W
map
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Ending
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30.546° N
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128.919° W
map
30° 32.76' N
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128° 55.14' W
map
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Show Degrees Minutes |
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Foreign Clearance Required? |
No |
Coastal States:
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 Important Info on Foreign Research Clearances
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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)?
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No |
If yes, have you applied for the necessary permits through your export control office?
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No |
| Questions about ITAR/EAR regulations?
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Comments about foreign clearance requirements or
description of any other special permitting requirements
(e.g., MMPA, ESA, IHA, Marine Sanctuaries, etc.) |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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None |
None |
None |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
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Important Info on Working in Foreign Ports
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Chief Scientist: |
Daniel Brothers, USGS-PCMSC |
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# in Science Party |
11 |
# of different science teams |
2 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
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1 |
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Explanation of Science Party Requirements and Technician Requirements |
USGS will provide technical staff. Would be good to have someone on board that can operate the crane in case we need it. |
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 Dynamic Positioning | ADCP | Multibeam |  Seismic |
| Dredging/Coring/Large Dia. Trawl Wire | Stern A-frame | Fiber Optic (.681) | 0.680 Coax Wire |
| SCUBA Diving | Radioisotope use - briefly describe | NO Radioisotope use/Natural level work | Other Operator Provided Inst. - Describe |
| 0 PI-Provided Vans - briefly describe | MOCNESS | | |
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Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling. |
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
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