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Long Range Acomms
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2013
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Roger Revelle
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Project Title: |
Long Range Acoustic Communications in Deep Water |
Project Status: |
Submitted |
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Principal Investigator: |
William S. Hodgkiss, SIO |
Project Institution: |
SIO |
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Project ID: |
103338 |
Version #: |
2 |
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Date Submitted: |
3/8/2012 1:07:00 AM |
Created By: |
William S. Hodgkiss |
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Date Last Modified: |
3/8/2012 1:31:00 AM |
URI Serial #: |
None |
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Funding Agencies: |
NAVY/ONR/OAS - N00014-12-1-0054 - Funded |
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Summary of Field Work: |
Demonstrate long range acoustic communications between a towed acoustic source and a towed hydrophone array at ranges up to ~1500-2000 km. |
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Summary of Facility Requirements: |
Two ships are required. One ship will tow an acoustic sound source and the other ship will tow an acoustic horizontal receive array. |
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Summary of other requirements and comments: |
Experiment will be done in the Philippine Sea in early 2013. The source ship with depart/return Kaohsiung, Taiwan. The towed array ship will depart Guam and arrive Okinawa, Japan.
The source is provided by NRL-SSC. They separately will submit a STR for additional ship days (beyond what is requested here) to use the source for their own geophysical experimental work in the vicinity of Taiwan. |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1005284 |
Created By: |
William S. Hodgkiss |
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Date Last Modified: |
3/8/2012 1:31:00 AM |
Date Submitted: |
3/8/2012 1:07:00 AM |
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Year: |
2013
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Ship/Facility: |
Roger Revelle
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Optimum Start Date:
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2/25/2013 |
Dates to Avoid: |
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Earliest Start Date: |
2/18/2013 |
Multi-Ship Op: |
Yes |
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Latest Start Date: |
3/1/2013 |
Other Ship(s): |
R/V Revelle (source ship) and R/V Thompson (towed array ship) |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
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10 |
1 |
1 |
2 |
14 |
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: |
R/V Revelle - tow an acoustic sound source
R/V Thompson - tow an acoustic horizontal line array
NRL-SSC is providing the sound source. They will be submitting a STR for additional ship days for their own separate geophysical work in the vicinity of Taiwan. |
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Short Description of Op Area
for use in schedules: |
Philippine Sea |
| Description of Op Area: |
East of Taiwan |
| Op Area Size/Dia.: |
~50 x 50 nmi box |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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22.633333° N
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120.266667° E
map
22° 37.99998' N
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120° 16.00002' E
map
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Ending
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22.633333° N
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120.266667° E
map
22° 37.99998' N
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120° 16.00002' E
map
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Show Degrees Minutes |
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Foreign Clearance Required? |
Yes |
Coastal States:
Taiwan |
 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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Kao-hsiung, Taiwan |
None |
Kao-hsiung, Taiwan |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Source tow work will be carried out immediately east of Taiwan. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
William S. Hodgkiss, SIO |
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# 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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2 |
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Explanation of Science Party Requirements and Technician Requirements |
The source ship will deploy an acoustic sound source from the aft A-frame. The source will be deployed and retrieved multiple times during the experiment. |
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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 |
| 1 PI-Provided Vans - briefly describe | MOCNESS | | |
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Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling. |
A-frame for deployment of towed acoustic source and winch suitable for deployment of the towed source and electro-mechanical cable.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
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