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NEU Array
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2020
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Marcus Langseth
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Project Title: |
Development of a large-aperture coherent hydrophone array hardware system, and data processing and analysis software system for instantaneous wide-area passive acoustic monitoring of ocean environments |
Project Status: |
Submitted |
Principal Investigator: |
Purnima R. Makris, Nthest U |
Project Institution: |
Nthest U |
Project ID: |
105692 |
Version #: |
1 |
Date Submitted: |
2/11/2017 11:26:00 AM |
Created By: |
Purnima R. Makris |
Date Last Modified: |
9/12/2018 11:04:00 AM |
URI Serial #: |
None |
Funding Agencies: |
NSF/OCE/OTIC - 1736749 - Funded |
Summary of Field Work: |
Two Intermediate and one final testing of coherent hydrophone array hardware.
First test : Prototype array testing for confirming hardware and software parameters
Second test : Intermediate hardware and software testing of a subaperture of the full system. We will complete construction of one subaperture containing 64 hydrophones and the auxillary sensors prior to this sea test.
3rd test: Final hardware and software testing with all four subapertures and functionality of the full system. We will complete construction of all four subapertures containing 160 hydrophones in total and all auxillary sensors prior to this sea test. |
Summary of Facility Requirements: |
CTD/XBT and multibeam/echosounder data will be collected. Will require crane to lift the full array system during mob and demob. |
Summary of other requirements and comments: |
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Type of Request: |
Collaborative Ship Use |
Request Status: |
Submitted |
Request ID: |
1009217 |
Created By: |
Purnima R. Makris |
Date Last Modified: |
9/12/2018 11:04:00 AM |
Date Submitted: |
2/11/2017 11:26:00 AM |
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Year: |
2020
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Ship/Facility: |
Marcus Langseth
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Optimum Start Date:
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8/15/2020 |
Dates to Avoid: |
Flexible date as long as it occurs after July 15, 2019. The purpose of this cruise is to provide instantaneous wide-area marine mammal monitoring support during Langseth's seismic survey cruises using full coherent hydrophone array system via the POAWRS technique. |
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Earliest Start Date: |
7/15/2019 |
Multi-Ship Op: |
No |
Latest Start Date: |
8/10/2019 |
Other Ship(s): |
Not multi-ship operation |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
18 |
1 |
1 |
2 |
22 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
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Description of Repeating cruise requirements: |
Not repeating |
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
Not repeating |
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Short Description of Op Area
for use in schedules: |
Gulf of Maine |
Description of Op Area: |
Our Op area does not have to be the Gulf of Maine. It can be anywhere the Langseth is operating so long as the water depth is not less than 50 m for the first deployment of the coherent hydrophone array. |
Op Area Size/Dia.: |
50 |
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Lat/Long |
Marsden Grid |
Navy Op Area |
Beginning
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Ending
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Show Degrees Minutes |
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Foreign Clearance Required? |
No |
Coastal States:
NONE |
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.) |
Not applicable |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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 |
Palisades is the home port of RV Langseth. Palisades is a 4 hour drive from Boston. We prefer to load up at Narragansett or Woods Hole which are closer, if possible. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Purnima R. Makris, Nthest U |
# in Science Party |
10 |
# of different science teams |
1 |
# Marine Technicians to be
provided by ship operator:
(include in science party total)
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1 |
Explanation of Science Party Requirements and Technician Requirements |
We will have a minimum of 10 in our science party for the first cruise on RV Langseth to ensure the coherent hydrophone array is operating all 24 hours.
The array will be towed roughly 300 m behind the ship. We need assistance from the crew to deploy and recover the array.
We will collect CTD/XBT and echosounder data, and will require assistance from the ship Science Tech.
We plan to go over with the ship Science Engineer usage of the full POAWRS coherent hydrophone array hardware and data acquisition and analysis software. |
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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. |
Our goal is to provide instantaneous wide-area marine mammal monitoring with the full coherent hydrophone array system via POAWRS sensing.
If there are active seismic sources in operation, we will also process the full coherent hydrophone array data to investigate instantaneous wide-area active OAWRS imaging with the seismic transmissions.
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Explain Major Ancillary Facilities Requirements and list description and provider for "other" systems. |
N/A |
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