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HT-RESIST
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2019
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Thomas G. Thompson
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Project Title: |
Hikurangi Trench Regional Electromagnetic Survey to Image the Subduction Thrust |
Project Status: |
Submitted |
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Principal Investigator: |
Samer Naif, GaTech |
Project Institution: |
LDEO |
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Project ID: |
105632 |
Version #: |
3 |
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Date Submitted: |
2/13/2017 5:10:00 PM |
Created By: |
Samer Naif |
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Date Last Modified: |
3/21/2018 3:55:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/MGG - 1737328 - Funded |
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Summary of Field Work: |
A seafloor magnetotelluric and controlled source electromagnetic survey on nine 150 km long profiles across the Hikurangi subduction zone east of South Island, New Zealand. |
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Summary of Facility Requirements: |
Global class vessel with UNOLS .680" coax deeptow cable and A- frame for EM deep towing. Crane for 168 ocean bottom EM deployments and recoveries. Multibeam bathymetry using EM302 system. |
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Summary of other requirements and comments: |
we are requesting (2) legs with 10 to 30 days between each leg. The first leg will require 28 days, and the second leg requires seven days (both including transit time out of Wellington, NZ). But the time between legs is flexible. |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1009127 |
Created By: |
Samer Naif |
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Date Last Modified: |
3/21/2018 3:55:00 PM |
Date Submitted: |
2/13/2017 5:10:00 PM |
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Year: |
2019
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Ship/Facility: |
Thomas G. Thompson
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Optimum Start Date:
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2/8/2019 |
Dates to Avoid: |
We need small seas to ensure deep towing will be possible on very specific headings and at slow speeds of 1.5 to 2 kts. February is preferred for best weather and since two of the participating scientists have another field program through mid-January 2019. |
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Earliest Start Date: |
11/15/2018 |
Multi-Ship Op: |
No |
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Latest Start Date: |
3/15/2019 |
Other Ship(s): |
Roger Revelle
Thomas G. Thompson
Sally Ride
Neil Armstrong |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
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33 |
2 |
2 |
2 |
39 |
Repeating Cruise?
(within same year) |
Yes |
Interval: |
14 |
# of Cruises: |
2 |
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Description of Repeating cruise requirements: |
Our interval needs are flexible, ideally between 10-30 interval days for the ocean bottom electromagnetic receivers to record data. |
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
RV Thompson or RV Revelle is needed for deck space for 42 EM receivers and for deep-towing EM transmitter. It is possible to use RV Armstrong or RV Ride to take advantage of the USBL system for navigating the EM transmitter during deep-tow operations. |
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Short Description of Op Area
for use in schedules: |
New Zealand |
| Description of Op Area: |
East of North Island, New Zealand |
| Op Area Size/Dia.: |
approximately 400km by 200km |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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42.333° S
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175.75° E
map
42° 19.98' S
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175° 45' E
map
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Ending
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38.417° S
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179.833° W
map
38° 25.02' S
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179° 49.98' W
map
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Show Degrees Minutes |
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Foreign Clearance Required? |
Yes |
Coastal States:
New Zealand |
 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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Wellington, New Zealand |
None, |
Wellington, New Zealand |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Wellington, Gisborne, and Napier ports are convenient since we will acquire data off the east coast of North Island, NZ. The Auckland port also works but may require additional transit time. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Samer Naif, GaTech |
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# in Science Party |
14 |
# 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 |
We will be deploying 42 ocean bottom electromagnetic receivers four times for a total of 168 deployments and recoveries. We will also be deep-towing an EM transmitter, so we will need a global class ship. We will need a crane operator 24/7 for deploying and recovering seafloor EM receivers. |
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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. |
We will be deploying 42 ocean bottom electromagnetic receivers four times and deep-towing an EM transmitter, so we will need a global class ship. Deep-towing requires the 0.680 coax cable.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
N/A |
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