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Coastal inertial dyn
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2017
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Blue Heron
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Project Title: |
Collaborative Research: Coastal inertial-band dynamics: separating forced and free responses in a natural laboratory |
Project Status: |
Submitted |
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Principal Investigator: |
Samuel Kelly, UMN_LLO |
Project Institution: |
UMN_LLO |
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Project ID: |
105198 |
Version #: |
2 |
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Date Submitted: |
2/12/2016 12:15:00 PM |
Created By: |
Samuel Kelly |
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Date Last Modified: |
7/15/2016 1:21:00 PM |
URI Serial #: |
None |
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Funding Agencies: |
NSF/OCE/PO - 1635560 - Funded |
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Summary of Field Work: |
The project will examine near-inertial currents and turbulence in Lake Superior, near Grand Marais, MN. The field work will consist of three traditional mooring recoveries and redeployments in 150-200 m of water during the summers of 2017, 2018, 2019, and 2020. During the summer of 2017, three additional standard moorings will be deployed and recovered as well as four Wirewalker moorings. Turbulence profiling time series and repeat transects of near-inertial currents will be incorporated in all of the cruises. Three 8-day cruises are requested during 2017 to maximize sampling while the large mooring array is deployed. |
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Summary of Facility Requirements: |
We require a standard CTD rosette, hull-mounted ADCP, and sufficient deck space and an A-frame for mooring deployments and recoveries. An over-the-side pole is needed to mount an ADCP that can measure near-surface velocities. An electrical connection and gunwale space are needed to power and mount an electric winch for turbulence and fast T-P profiling. Sufficient crew is needed for 24-h mooring and profiling operations. |
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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: |
1008317 |
Created By: |
Samuel Kelly |
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Date Last Modified: |
7/15/2016 9:09:00 AM |
Date Submitted: |
2/12/2016 12:15:00 PM |
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Year: |
2017
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Ship/Facility: |
Blue Heron
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Optimum Start Date:
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8/1/2017 |
Dates to Avoid: |
The cruise must take place during strong summer stratification, in order to sample inertial oscillations. |
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Earliest Start Date: |
7/20/2017 |
Multi-Ship Op: |
No |
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Latest Start Date: |
8/20/2017 |
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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24 |
0 |
0 |
0 |
24 |
Repeating Cruise?
(within same year) |
Yes |
Interval: |
13 days |
# of Cruises: |
3 |
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Description of Repeating cruise requirements: |
Three 8-day cruises are requested.
During the first 3 days of the first cruise, 3 traditional moorings will be recovered and 6 traditional moorings and 4 Wirewalker moorings will be deployed. The remainder of the cruise (5 days) will be used for ship-board turbulence profiling, while the moorings are collecting data.
The second cruise will start about 5 days after the end of the first cruise. It will be used for ship-board turbulence profiling.
The third cruise will start about 5 days after the end of the second cruise. It will begin with an additional 5 days of ship-board turbulence profiling and finish with 3 days to recover the 3 traditional moorings and 4 Wirewalker moorings.
The aim of the cruise spacing is to obtain 18 days of ship-based data while the moorings are in the water for approximately 30 days. The ship-based sampling is broken into three sections to increase the chance of observing a significant wind event and slightly different stratification regimes. |
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations: |
The R/V Blue Heron is needed for mooring operations and 24-h ship-based profiling. The cruise should take place during strong summer stratification. |
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Short Description of Op Area
for use in schedules: |
Lake Superior |
| Description of Op Area: |
US waters in the western basin of Lake Superior |
| Op Area Size/Dia.: |
100 |
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Lat/Long |
Marsden Grid |
Navy Op Area |
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Beginning
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47.247° N
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87.568° W
map
47° 14.82' N
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87° 34.08' W
map
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Ending
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47.247° N
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87.568° W
map
47° 14.82' N
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87° 34.08' W
map
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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.) |
N/A |
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Requested Start Port |
Intermediate Port(s) |
Requested End Port |
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Duluth, MN, USA |
None, , None, |
Duluth, MN, USA |
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops |
Duluth is the nearest port to the study site. |
Important Info on Working in Foreign Ports
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Chief Scientist: |
Samuel Kelly, UMN_LLO |
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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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1 |
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Explanation of Science Party Requirements and Technician Requirements |
The cruises will involve deploying and recovering moorings and 24-h profiling currents, temperature, and turbulence. A 6 person science party is needed to provide two 3-person shifts during 24-h profiling, and assist with programming/downloading instruments for the moorings. A technician is needed to lead deck operations and occasionally operate the CTD and monitor the hull-mounted ADCP. |
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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. |
A hull-mounted ADCP is requested, but is not critical, for this cruise, which will recover and redeploy moorings.
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Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems. |
N/A |
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