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Chile post-seismic
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2013
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Roger Revelle
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Project Title: |
Collaborative Research: Post-seismic response updip of the Chilean megathrust earthquake of February 27, 2010 |
Project Status: |
Submitted |
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Principal Investigator: |
Anne M. Trehu, OSU_COAS |
Project Institution: |
OSU_COAS |
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Project ID: |
102852 |
Version #: |
2 |
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Date Submitted: |
2/12/2011 11:32:00 AM |
Created By: |
Anne M. Trehu |
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Date Last Modified: |
6/21/2011 9:03:00 AM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/MGG - 1130013 - Funded |
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Summary of Field Work: |
Deployment of 10 broadband OBSs equiped with seafloor flow meters on the accretionary complex offshore central Chile in water depths of 2000-5300 m.
Acquisition of high-resolution seismic reflection data using a short multichannel streamer and GI guns. (first cruise only)
Swath bathymetry, magnetics, gravity
Gravity cores (second cruise only) |
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Summary of Facility Requirements: |
Need adequate deck space and cranes to handle OBSs on deck. Need air compressor in yr 1 for seismic reflection. |
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Summary of other requirements and comments: |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1004401 |
Created By: |
Anne M. Trehu |
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Date Last Modified: |
2/12/2011 11:37:00 AM |
Date Submitted: |
2/12/2011 11:32:00 AM |
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Year: |
2013
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Ship/Facility: |
Roger Revelle
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Optimum Start Date:
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4/1/2013 |
Dates to Avoid: |
July-September (possibility of winter storms); December-February (strong southerly winds likely) |
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Earliest Start Date: |
3/15/2013 |
Multi-Ship Op: |
No |
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Latest Start Date: |
6/30/2013 |
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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6 |
1 |
1 |
1 |
9 |
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: |
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Short Description of Op Area
for use in schedules: |
central Chile |
| Description of Op Area: |
continental margin of south-central Chile halfway between Valparaiso and Conception |
| Op Area Size/Dia.: |
~100 |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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33° 30' S
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73° 30' W
map
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Ending
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35° 30' S
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72° 30' W
map
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Show Degrees Minutes |
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Foreign Clearance Required? |
Yes |
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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Bahia de Valparaiso, Chile |
None |
Bahia de Valparaiso, Chile |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Valparaiso is the closest major port to the field area and is only ~120 nm away. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Anne M. Trehu, OSU_COAS |
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# in Science Party |
14 |
# of different science teams |
3 |
# 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 |
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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. |
Portable high-resolution seismic system needed (e.g. SIO system) with shipboard (rather than portable) compressor adequate to charge 2 GI guns at 10 s repetition rate.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
10 broadband OBSs equiped with SIO flow meters will be recovered. Gravity cores and swath bathymetry will be acquired with unused contingency time. |
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