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Freshwater
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2015
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Endeavor
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Project Title: |
Collaborative Research: An Electromagnetic Survey of Freshwater Resources Beneath the US Atlantic Continental Shelf |
Project Status: |
Submitted |
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Principal Investigator: |
Kerry Key, LDEO |
Project Institution: |
SIO |
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Project ID: |
104490 |
Version #: |
1 |
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Date Submitted: |
8/7/2014 7:52:00 PM |
Created By: |
Kerry Key |
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Date Last Modified: |
1/12/2015 11:12:00 AM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/MGG - 1458392 - Funded |
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Summary of Field Work: |
We will carry out a combination of controlled source EM (CSEM) and magnetotelluric soundings spanning the continental shelf in two study areas: one offshore New Jersey and another offshore Martha's Vineyard. At each survey location, the field work involves deploying 10 seafloor electromagnetic receivers along a 150 km long profile and then surface towing a EM transmitter over the profile. The receivers are then recovered. Note that this operation does NOT require any deep-towing. |
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Summary of Facility Requirements: |
Intermediate class ship out of WHOI or Rhode Island with a crane suitable for deploying/recovering seafloor EM recorders. |
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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: |
1007166 |
Created By: |
Kerry Key |
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Date Last Modified: |
8/7/2014 7:52:00 PM |
Date Submitted: |
8/7/2014 7:52:00 PM |
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Year: |
2015
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Ship/Facility: |
Endeavor
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Optimum Start Date:
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6/1/2015 |
Dates to Avoid: |
Ocean-wave noise can corrupt our seafloor EM data, so ideally our cruise will be in late spring to avoid storms. |
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Earliest Start Date: |
5/1/2015 |
Multi-Ship Op: |
No |
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Latest Start Date: |
8/1/2015 |
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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12 |
2 |
1 |
0 |
15 |
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: |
We will be deploying 10 ocean bottom electromagnetic receivers twice and surface-towing an EM transmitter, so we require an Ocean class ship. Need deck space for 10 3' x 3' instruments and deck loading of 20 concrete anchors at 200 kg each. We will need a crane with enough reach to accommodate deploying and recovering EM receivers with 5 m long flexible arms. The transmitter antenna is towed on the sea surface behind the vessel and does NOT require any deep-towing nor an A-frame. The power supply for the transmitter is about 6 feet tall and 36 inches wide; it should fit nicely into the wet-lab on the Oceanus (at least according to the ship's drawings) and will require access to the ship's three-phase power. |
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Short Description of Op Area
for use in schedules: |
Atlantic coast |
| Description of Op Area: |
Offshore New Jersey and Martha's Vineyard, from 10 km offshore to 150 km offshore. |
| Op Area Size/Dia.: |
100 x 200 nm |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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Ending
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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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Woods Hole, MA, USA |
None |
Woods Hole, MA, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
WHOI is close to the survey area and convenient as the home base of collaborator R. Evans. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Kerry Key, LDEO |
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# in Science Party |
13 |
# of different science teams |
1 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
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2 |
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Explanation of Science Party Requirements and Technician Requirements |
11 scientists plus two res techs. |
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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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