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LaJIT2
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2016
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Sally Ride
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Project Title: |
La Jolla Internal Tide Experiment 2 |
Project Status: |
Submitted |
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Principal Investigator: |
Madeleine Hamann, SIO |
Project Institution: |
SIO |
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Project ID: |
105407 |
Version #: |
4 |
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Date Submitted: |
7/28/2016 4:40:00 PM |
Created By: |
Madeleine Hamann |
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Date Last Modified: |
9/22/2016 7:32:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NAVY/ONR - NONE - Funded |
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Summary of Field Work: |
The energetics of the internal tide and the resulting patterns of turbulence within the La Jolla Canyon System will be studied over the course of several months.
On a 7-day cruise in the late fall/early winter, 3 moorings first will be deployed along the axes of the branches at the head of the La Jolla Canyon System (1 km of the coast of La Jolla, CA). Six 25-hour CTD stations at 6 locations will then be occupied at various points within the canyon system. 2-3 months later we will return for a 1-day cruise aboard the R/V Robert Gordon Sproul in order to recover the 3 moorings. |
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Summary of Facility Requirements: |
We will need a CTD/rosette, ADCP, mooring spooler, sufficient deck space/A-frame for mooring deployments/recoveries, and a vessel with dynamic positioning capable of keeping station above complex bathymetry and continuous CTD casting for 25 hours. |
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Summary of other requirements and comments: |
This work is ideal for the instrument testing cruises aboard the Sally Ride or her sister ship, and is best suited for a vessel with dynamic positioning. However, the work can be accomplished aboard the R/V Robert Gordon Sproul if ship scheduling prevents the use of another vessel. |
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Type of Request: |
Primary Ship Use |
Request Status: |
Submitted |
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Request ID: |
1008728 |
Created By: |
Madeleine Hamann |
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Date Last Modified: |
9/22/2016 7:32:00 PM |
Date Submitted: |
7/28/2016 4:40:00 PM |
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Year: |
2016
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Ship/Facility: |
Sally Ride
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Optimum Start Date:
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12/13/2016 |
Dates to Avoid: |
This cruise needs to take place 2-3 months after the culmination of the previous cruise in order to recover the moorings that will be deployed on the earlier leg of the experiment. |
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Earliest Start Date: |
12/10/2016 |
Multi-Ship Op: |
No |
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Latest Start Date: |
12/16/2016 |
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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2 |
0 |
1 |
0 |
3 |
Repeating Cruise?
(within same year) |
No |
Interval: |
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# of Cruises: |
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Description of Repeating cruise requirements: |
n/a |
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
n/a |
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Short Description of Op Area
for use in schedules: |
La Jolla Canyon |
| Description of Op Area: |
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| Op Area Size/Dia.: |
3 |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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32.8694° N
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117.2782° W
map
32° 52.164' N
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117° 16.692' W
map
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Ending
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32.8694° N
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117.2782° W
map
32° 52.164' N
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117° 16.692' W
map
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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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San Diego, CA, USA |
None, , None, |
San Diego, CA, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Nearest port to study region. It is also the home port of the vessel. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Madeleine Hamann, SIO |
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# in Science Party |
15 |
# 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 |
Our science party will include several engineers and technicians familiar with mooring recoveries and the vessel. |
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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. |
With the extra time provided by a 2-day recovery cruise, we will perform multibeam mapping of any under-resolved sections of the La Jolla Canyon System. We will also use the shipboard CTD to perform station work amidst complex topography for which dynamic positioning will be needed.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
The TSE winch will be used in the recovery of 3 moorings from the canyon whose lengths are 10m, 250m, and 490m. |
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