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Cascadia GPS-A
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2019
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Sikuliaq
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Project Title: |
Assessing the State of Locking on the Frontal Thrust of the Cascadia Subduction Zone with Seafloor Geodesy |
Project Status: |
Submitted |
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Principal Investigator: |
C. D. Chadwell, SIO |
Project Institution: |
SIO |
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Project ID: |
105464 |
Version #: |
4 |
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Date Submitted: |
8/9/2016 5:57:00 PM |
Created By: |
C. D. Chadwell |
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Date Last Modified: |
2/4/2021 6:16:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/MGG - 1657961 - Funded |
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Summary of Field Work: |
In year 1, deploy seafloor geodetic transponders and benchmarks for the sea surface using dynamically position ship at two sites along the Cascadia subduction zone. In year 3, recover the transponders from the two seafllor sites. |
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Summary of Facility Requirements: |
In year 1, require a dynamically-positioned ship with a crane. In year 3, require a ship with a crane. |
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Summary of other requirements and comments: |
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Type of Request: |
Collaborative Ship Use |
Request Status: |
Submitted |
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Request ID: |
1010426 |
Created By: |
C. D. Chadwell |
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Date Last Modified: |
2/4/2021 6:16:00 PM |
Date Submitted: |
3/12/2019 1:08:00 PM |
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Year: |
2019
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Ship/Facility: |
Sikuliaq
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Optimum Start Date:
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8/27/2019 |
Dates to Avoid: |
Requesting one additional science day for ROV Jason dive along transit of Sikuliaq departing Kokiak AK on 27-AUG-2019 arriving Newport Oregon on 07-Sep-2019. Proposed dive site is
offshore Cape Lookout Oregon. |
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Earliest Start Date: |
8/27/2019 |
Multi-Ship Op: |
No |
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Latest Start Date: |
8/27/2019 |
Other Ship(s): |
N/A |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
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1 |
0 |
0 |
0 |
1 |
Repeating Cruise?
(within same year) |
No |
Interval: |
N/A |
# of Cruises: |
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Description of Repeating cruise requirements: |
N/A |
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
Requesting one additional science day for ROV Jason dive along transit of Sikuliaq departing Kokiak AK on 27-AUG-2019 arriving Newport Oregon on 07-Sep-2019. Proposed dive site is offshore Cape Lookout Oregon. |
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Short Description of Op Area
for use in schedules: |
Cape Lookout |
| Description of Op Area: |
Single dive site in approximately 40 nm offshore Cape Lookout in ~1150 m water depth. |
| Op Area Size/Dia.: |
< 1 nm |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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45.3096° N
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124.9593° W
map
45° 18.576' N
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124° 57.558' W
map
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Ending
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45.3096° N
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124.9593° W
map
45° 18.576' N
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124° 57.558' 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.) |
N/A |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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Kodiak, AK, USA |
None |
Newport, OR, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Requesting one additional science day for ROV Jason dive along transit of Sikuliaq departing Kokiak AK on 27-AUG-2019 arriving Newport Oregon on 07-Sep-2019. Proposed dive site is offshore Cape Lookout Oregon. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
C. D. Chadwell, SIO |
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# in Science Party |
3 |
# of different science teams |
1 |
# 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 |
Requesting one ROV Jason dive to place an acoustic transponder on an existing permanent concrete benchmark already deployed on the seafloor at the site. |
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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. |
Need dynamic positioning to maintain ship overtop of the target site on the seafloor to allow ROV Jason to place transponder precisely on ~ 1 meter diameter benchmark.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
Require ROV Jason to precisely place an acoustic transponder into the registration frame of a permanment concrete benchmark deployed at the dive site. Transponder is ~ 0.5 meters in diameter and presumably carried down in Jason's sample basket. Jason completed similar work in 2014 at four sites offshore Newport for our group. |
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