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Mixing: R&C
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2012
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Melville
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Project Title: |
Quantifying mixing around topography: Ridges and canyons |
Project Status: |
Submitted |
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Principal Investigator: |
Amy Waterhouse, UCSD SIO |
Project Institution: |
UCSD |
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Project ID: |
103170 |
Version #: |
2 |
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Date Submitted: |
11/14/2011 9:57:00 PM |
Created By: |
Amy Waterhouse |
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Date Last Modified: |
1/18/2012 5:47:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
INST/UCSD/SIO - NONE - Funded |
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Summary of Field Work: |
There are two components to this field work:
1) To make detailed, high resolution observations very close to Mendocino Ridge (at 127.5 W, 40.37 N) during Spring tides when the barotropic currents will be strongest. We use of the shipboard ADCP and CTD as well a Lowered-ADCP (courtesy of Scripps Institution of Oceanography) and a chi-pod (courtesy of Oregon State University). In order to understand both averaged and instantaneous processes, we will split our observations into two parts, each one 96 hours long. In the first part we will perform a series of very slow, cross-ridge transits whilst yo-yoing the CTD package between 800m and 2000m. In the latter 96 hours, we will do eight 12 hour stations at four different locations on the southern flank of the ridge at different phases of the spring-neap cycle (the southern barotropic currents are around 1-2cm stronger than the northern currents).
2) To conduct 30 hour profiling at eight stations, during a Spring tide, in the vicinity of Vizcaino canyon (124.85W, 39.69 N). These profiles will consist of lowered ADCP and CTD profiles to obtain vertical profiles of density and velocity. The CTD will be fitted with a chi-pod for the measurement of vertical profiles of turbulent fluctuations of temperature. |
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Summary of Facility Requirements: |
Our surveys will consist of profiling with the CTD. We will thus require 24 hr winch operations for the duration of the field work, as well as the assistance of the research technician.
The extra instruments (L-ADCP and chi-pod) will be provided at no additional cost by Shaun Johnson (Scripps) and Jonathan Nash (OSU). |
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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: |
1004974 |
Created By: |
Amy Waterhouse |
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Date Last Modified: |
1/18/2012 5:47:00 PM |
Date Submitted: |
11/14/2011 9:57:00 PM |
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Year: |
2012
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Ship/Facility: |
Melville
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Optimum Start Date:
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11/11/2012 |
Dates to Avoid: |
Both project sites need to be sampled during a spring tide, and leaving on the 11 Nov 2012 makes that possible. |
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Earliest Start Date: |
11/10/2011 |
Multi-Ship Op: |
No |
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Latest Start Date: |
11/12/2011 |
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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19 |
1 |
1 |
5 |
26 |
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: |
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Short Description of Op Area
for use in schedules: |
Mendocino Ridge |
| Description of Op Area: |
The ship will first work at Mendocino Ridge (127.5 W, 40.37 N) then move to Vizcaino Canyon (124.6 W, 39.65 N). |
| Op Area Size/Dia.: |
156 nm |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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40° 22.2' N
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127° 30' W
map
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Ending
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39° 39' N
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124° 36' 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 |
San Diego, CA, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
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Important Info on Working in Foreign Ports
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Chief Scientist: |
Amy Waterhouse, UCSD SIO |
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# in Science Party |
7 |
# 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 |
We plan to do 3 eight hour shifts for the CTD-LADCP profiling (with 2-3 people on each shift). We will also need 2 res techs for the 24 hr operations of the CTD. |
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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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