|
|
Ellice Basin Mapping
-
2016
-
Kilo Moana
|
|
|
|
Project Title: |
Collaborative Research: Super-Plateau Breakup and Cretaceous Quiet Zone Tectonics |
Project Status: |
Submitted |
|
Principal Investigator: |
Paul Wessel, UH_SOEST |
Project Institution: |
UH_SOEST |
|
Project ID: |
104470 |
Version #: |
2 |
|
Date Submitted: |
8/4/2014 4:48:00 PM |
Created By: |
Paul Wessel |
|
Date Last Modified: |
3/2/2015 2:25:00 PM |
URI Serial #: |
None |
|
Funding Agencies: |
NSF/OCE/MGG - 1458964 - Funded |
|
Summary of Field Work: |
We propose multibeam mapping in the Ellice Basin, with ~6 days devoted to dredging of seafloor samples. We will also collect underway geophysical data such as magnetics, gravity, sub-bottom reflections (3.5 kHz), and daily XBTs for sound velocity control. The survey seeks to address the following questions:
* When did seafloor spreading terminate in the Ellice Basin?
* When did the last phase of spreading initiate?
* What is the spreading history between Ontong Java and Manihiki plateaus?
* What is the age of the Robbie Ridge and is it part of Manihiki?
The proposed survey will target areas for dredging that have the potential to address the time-history of spreading, while the detailed multibeam survey of two key fracture zones and the central basin will address plate kinematic questions. The project will constrain models for plateau breakup and Cretaceous Normal Superchron tectonics. |
|
Summary of Facility Requirements: |
Multibeam sonar, rock dredges, towed magnetometer, gravimeter, sub-bottom profiler (e.g., 3.5. kHz). sound velocity profilers (Expendable Bathymetric Thermographs (XBT's)). |
|
Summary of other requirements and comments: |
|
|
|
Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
|
Request ID: |
1007138 |
Created By: |
Paul Wessel |
|
Date Last Modified: |
3/2/2015 2:25:00 PM |
Date Submitted: |
8/4/2014 4:48:00 PM |
|
|
Year: |
2016
|
Ship/Facility: |
Kilo Moana
|
|
Optimum Start Date:
|
6/1/2016 |
Dates to Avoid: |
Avoid South Pacific tropical cyclone season Nov.1-April 31. |
|
|
|
|
|
|
Earliest Start Date: |
6/1/2016 |
Multi-Ship Op: |
No |
|
Latest Start Date: |
11/1/2016 |
Other Ship(s): |
|
|
|
Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
|
33 |
0 |
0 |
2 |
35 |
Repeating Cruise?
(within same year) |
No |
Interval: |
|
# of Cruises: |
|
|
|
Description of Repeating cruise requirements: |
|
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
|
|
Short Description of Op Area
for use in schedules: |
Ellice Basin |
| Description of Op Area: |
Suggested ports are Honiara and Apia, with main survey in between in the Ellice Basin |
| Op Area Size/Dia.: |
~50,000 sq.nm. |
|
|
| |
Lat/Long |
Marsden Grid |
Navy Op Area |
|
Beginning
|
|
|
|
|
Ending
|
13° 48' S
/
172° 0' W
map
|
|
|
| |
Show Degrees Minutes |
|
|
|
|
|
Foreign Clearance Required? |
Yes |
Coastal States:
New Zealand, Kiribati, Solomon Islands, Tuvalu, Western Samoa |
 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.) |
|
|
|
Requested Start Port |
Intermediate Port(s) |
Requested End Port |
|
Honiara, Solomon Islands |
None |
Apia, Western Samoa |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
The selected port will minimize transit time for this project. The order of start/stop port is not important. |
Important Info on Working in Foreign Ports
|
|
|
|
Chief Scientist: |
Paul Wessel, UH_SOEST |
|
# in Science Party |
8 |
# of different science teams |
1 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
|
1 |
|
Explanation of Science Party Requirements and Technician Requirements |
This is a multibeam mapping cruise with limited dredging, thus we request one good dredging technician for dredging operations. Science party size does not include any international observers that may be required as part of foreign clearances. |
|
 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 | | |
|
Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling. |
Other than dredging and multibeam we expect to collect underway magnetics, gravity, and sub-bottom profiling. While Kilo Moana is preferred given its recent sonar upgrades, the Melville or Revelle would also be suitable.
|
|
|
|
Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
We need daily sound velocity profilers (Expendable Bathymetric Thermographs (XBT's)) for good water velocity sound profiles to optimize multibeam accuracy. |
|
