Ship Request

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  Troy Lake Michigan  -  2013  -  Blue Heron  
  Project Information  
Project Title: Dispersion and mixing caused by near-inertial internal waves in Lake Michigan Project Status: Submitted
Principal Investigator: Cary Troy, Purdue Project Institution: Purdue
Project ID: 103597 Version #: 2
Date Submitted: 8/24/2012 4:58:00 PM Created By: Cary Troy
Date Last Modified: 8/27/2012 9:55:00 AM URI Serial #: None
Funding Agencies: NSF/OCE/EDU - OCE-1030842 - Funded
Summary of Field Work: We are examining near-surface vertical mixing and horizontal dispersion in the middle of Lake Michigan, and are seeking a 1 week cruise in summer of 2012 (preferably late July, when winds are relatively weak but thermal stratification is strong). We would like to perform repeated microstructure profiling in the middle of Lake Michigan's southern basin, remaining on station for the duration of the cruise. The microstructure profiler will be a free-falling (tethered) profiler that will need to be launched by hand from the deck of either the primary ship or an auxiliary, smaller inflatable. We would also like to perform ship-based ADCP measurements during the entire cruise. At the beginning of the cruise, we plan to release a dye patch, and this patch will then be tracked.
Summary of Facility Requirements: We require a vessel that ideally has:
- ability to remain on station (mid-lake Lake Michigan) for the duration of the 1 week cruise.
- Acoustic Doppler Current Profiler (ADCP) or capabilities to obtain velocity profiles under vessel for duration of cruise
- Simple winches for CTD and microstructure profiling
- Potentially the ability to utilize a smaller inflatable boat (can be tethered behind vessel) to allow for hand-lowering of the thermal microstructure instrument.
Summary of other requirements and comments: We have been given approval from the Physical Oceanography Program of the National Science Foundation (Ocean Sciences Division) for this cruise, even though it was not originally budgeted in the original proposal. Funds to cover ship costs will be transferred from the Purdue University project account to the vessel.
Ship Request Identification
Type of Request: Primary Ship Use Request Status: Submitted
Request ID: 1005715 Created By: Cary Troy
Date Last Modified: 8/27/2012 9:55:00 AM Date Submitted: 8/24/2012 4:58:00 PM
Requested Ship, Operating Days and Dates
Year: 2013 Ship/Facility: Blue Heron
Optimum Start Date: 7/14/2013 Dates to Avoid: We are seeking a time with relatively calm winds and strong stratification. In June, the thermal stratification is not yet strong enough; as we get further into August, the wind gets stronger, to the point where surface waves dominate the mixing dynamics near the lake surface.
Earliest Start Date: 7/1/2012 Multi-Ship Op: No
Latest Start Date: 8/6/2012 Other Ship(s):

Operating Days Needed: Science Days Mob Days De-Mob Days Estimated Transit Days Total Days
7 1 1 2 11
Repeating Cruise?
(within same year)
No Interval:   # of Cruises:  

Description of Repeating cruise requirements:
Justification/Explanation for ship choice, dates,
conflicts, number of days & multi-ship operations:
Work Area for Cruise
Short Description of Op Area
for use in schedules:
South Lake Mich
Description of Op Area: The center of Lake Michigan's southern basin.
Op Area Size/Dia.: 10miles, estimated
  Lat/Long Marsden Grid Navy Op Area
42.696° N / 87.021° W map
153 map
GL04 map
42.696° N / 87.021° W map
153 map
GL04 map
  Show Degrees Minutes    
Foreign Clearance and Permitting Requirements
Foreign Clearance Required? No Coastal States:
 Important Info on Foreign Research Clearances  

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)?
No If yes, have you applied for the necessary permits through your export control office? No
 Questions about ITAR/EAR regulations?

Comments about foreign clearance requirements or
description of any other special permitting requirements
(e.g., MMPA, ESA, IHA, Marine Sanctuaries, etc.)
Port Calls
Requested Start Port Intermediate Port(s) Requested End Port
None None None
Explanation/justification for requested
ports and dates of intermediate stops
or to list additional port stops
There are no ports that can be selected for Lake Michigan - we are willing to board the Blue Heron wherever makes the most sense given the logistics. Milwaukee is the closest large port to the desired cruise location.

 Important Info on Working in Foreign Ports

Science Party
Chief Scientist: Cary Troy, Purdue
# in Science Party 10 # of different science teams 1 # Marine Technicians to be
provided by ship operator:
(include in science party total)
Explanation of Science Party Requirements and Technician Requirements The science party at present includes PI (C. Troy), graduate students, and undergraduate students from Purdue University and other schools. 2 other senior scientists may accompany us on the cruise, pending their availability.
Instrumentation Requirements That Impact Scheduling Decisions
Unselected Dynamic PositioningUnselected ADCPUnselected MultibeamUnselected Seismic
Unselected Dredging/Coring/Large Dia. Trawl WireUnselected Stern A-frameUnselected Fiber Optic (.681)Unselected 0.680 Coax Wire
Unselected SCUBA DivingUnselected Radioisotope use - briefly describeUnselected NO Radioisotope use/Natural level workUnselected Other Operator Provided Inst. - Describe
0 PI-Provided Vans - briefly describe Unselected MOCNESS  
Explain Instrumentation or Capability
requirements that could affect choice
of ship in scheduling.

Major Ancillary Facilities (that require coordination of schedules with ship schedule)
Unselected Helicopter Ops (USCG)Unselected Twin OtterUnselected Unmanned Aerial Systems (UAS) 
Autonomous Underwater Vehicle (AUV)
Unselected Other AUVUnselected Sentry  
Coring Facility
Unselected Jumbo Piston CoringUnselected Large Gravity Core Unselected MC800 multicorer w/ MISO camera/telemetryUnselected OSU Coring Facility (MARSSAM)
Unselected Other Large Coring FacilityUnselected WHOI Long Core  
Human Occupied Vehicle (HOV)
Unselected AlvinUnselected Clelia (HBOI)Unselected JSL I & II (HBOI)Unselected Other HOV
Other Facility
Unselected MISO Facility - deep-sea imagingUnselected Other FacilityUnselected Potential Fields Pool Equipment 
Remotely Operated Vehicle (ROV)
Unselected JasonUnselected Other ROV  
Seismic Facility
Unselected Ocean Bottom Seismograph Instrument Center (OBSIC)Unselected Ocean Bottom Seismograph Instrument Pool (OBSIP)Unselected Ocean-Bottom Seismometer Program (UTIG)Unselected Other Seismic/OBS Facility
Unselected PASSCALUnselected Portable MCS groupUnselected Portable MCS/SCS groupUnselected U.S. Geological Survey Ocean Bottom Seismometer Facility (USGS at WHOI)
Towed Underwater Vehicle
Unselected ARGO IIUnselected Hawaii MR1 (HMRG)Unselected IMI12 (HMRG)Unselected IMI120 (HMRG - formerly DSL 120A)
Unselected IMI30 (HMRG)Unselected Other Towed Underwater VehicleUnselected Towfish 
UNOLS Van Pool
Unselected AUV Lab Van #1Unselected Clean Lab VanUnselected Cold Lab VanUnselected General Purpose Lab Van
Unselected Radioisotope Lab VanUnselected Wet Lab Van  
UNOLS Winch Pool
Unselected Mooring SpoolerUnselected Portable WinchUnselected Turn Table 
Explain Major Ancillary Facilities
Requirements and list description
and provider for "other" systems.
We would like to use a ship-mounted ADCP to measure currents below the vessel while on station.

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