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Passive Sonar
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2020
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Robert Gordon Sproul
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Project Title: |
Probing the Environmental Limits of Passive Sonar |
Project Status: |
Submitted |
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Principal Investigator: |
Gerald L. D'Spain, SIO |
Project Institution: |
SIO |
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Project ID: |
106479 |
Version #: |
4 |
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Date Submitted: |
4/19/2019 4:38:00 PM |
Created By: |
Gerald L. D'Spain |
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Date Last Modified: |
1/15/2020 1:46:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NAVY/ONR - NONE - Funded |
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Summary of Field Work: |
Three 4-day trips on the R/V Sproul off the coast of San Diego to 1) deploy/retrieve Autonomous Passive Acoustic Monitoring packages, and conduct controlled acoustic source tows. |
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Summary of Facility Requirements: |
R/V Sproul has all the necessary onboard equipment (crane, A-frame, environmental data collection systems, ship GPS, etc) to conduct these 3 sea tests. |
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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: |
1010449 |
Created By: |
Gerald L. D'Spain |
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Date Last Modified: |
1/15/2020 1:46:00 PM |
Date Submitted: |
4/19/2019 4:38:00 PM |
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Year: |
2020
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Ship/Facility: |
Robert Gordon Sproul
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Optimum Start Date:
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4/12/2020 |
Dates to Avoid: |
Prior to beginning since preparations have to be done for the sea tests first. |
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Earliest Start Date: |
4/12/2020 |
Multi-Ship Op: |
No |
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Latest Start Date: |
4/16/2020 |
Other Ship(s): |
N/A |
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Operating Days Needed: |
Science Days |
Mob Days |
De-Mob Days |
Estimated Transit Days |
Total Days |
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4 |
1 |
0 |
0 |
5 |
Repeating Cruise?
(within same year) |
Yes |
Interval: |
1-2 mos. |
# of Cruises: |
2 |
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Description of Repeating cruise requirements: |
The first Sproul trip would occur just prior to the spring CalCOFI cruise, and the 2nd Sproul trip would occur 1-2 mos. after the spring CalCOFI cruise, prior to the subsequent CalCOFI cruise. The 3rd Sproul cruise, would occur just after the summer CalCOFI cruise. |
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
The R/V Sproul has all the necessary onboard equipment for these 3 sea tests. The goal of scheduling the 3 Sproul cruises is to have one just before, a second one about in the middle, and the 3rd one just after the fall and winter CalCOFI cruises. The autonomous passive acoustic monitoring packages will be deployed near off-shore CalCOFI stations to take advantage of the oceanographic, biological, and environmental data collected by the CalCOFI program. |
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Short Description of Op Area
for use in schedules: |
Off San Diego |
| Description of Op Area: |
West, within 35 km of the San Diego coast. |
| Op Area Size/Dia.: |
less than 20 nm |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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33° 0' N
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117° 12' W
map
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Ending
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32° 30' N
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118° 0' W
map
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Show Degrees Minutes |
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Foreign Clearance Required? |
No |
Coastal States:
US EEZ |
 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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San Diego, CA, USA |
None, |
San Diego, CA, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
San Diego is closest port to the op area. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Gerald L. D'Spain, SIO |
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# in Science Party |
5 |
# 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 |
No need for an operator-provided technician - Dave Price and Dennis Rimington, both with 2 decades of oceangoing expertise, can cover all the sea test needs. |
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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 would like to collect as much oceanographic, biological, and environmental data as reasonably feasible during each of the 3 Sproul trips.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
N/A |
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