Woods Hole Oceanographic Institution

Cruise Planning Synopsis

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AR20 Breier "Cilo Sea Trials"


RV Neil Armstrong

Cruise Party

John Breier: Chief Scientist, Principal Investigator
University of Texas Rio Grande Valley 1201 West University Drive Edinburgh, Texas United States 78539
+1 508 685 1888

Departure: Jul 5, 2017

Woods Hole

Arrival: Jul 9, 2017

Woods Hole

Operations Area

Buzzard's Bay and the Shelfbreak Pioneer Array area
Lat/Lon: 39° 54.355′ N / 70° 34.928′ W
Depth Range: 12 / 2000
Will the vessel be operating within 200 NM of a foreign country? no

Science Objectives

This cruise is the engineering sea trials of a new experimental deep diving AUV called Clio, designed to facilitate future ocean biogeochemical studies. Clio is intended to be a sampling platform that can be used simultaneously and independently of traditional wire based sampling systems. The ultimate goal of Clio is to lower operational and financial barriers to realizing a biochemical global survey of marine genomics (DNA), transcriptomics (RNA), proteomics (proteins and enzymes), metabolomics (lipids and other metabolites), and metallomics (metals). 

Science Activities

Three related activities will occur during this cruise, they are listed here in order of decreasing priority:

(1) Perform a sequence of engineering test dives with the Clio vehicle. These dives will start in shallow water (in Buzzard's Bay) and with each successful completion, subsequent dives will advance to greater depths. The last dives will be near the Shelfbreak Pioneer Array.

(2) Test the efficacy of the Clio vehicle's sampling systems. This activity will be performed in concert with the vehicle dives. Sample processing will occur in the Armstrong's lab spaces.

(3) Conduct complimentary water sampling with the Armstrong's CTD water rosette. This will occur while the Clio vehicle is shipboard recharging.

Additional Info

Pre-cruise Planning Meeting: Teleconference/Visit WHOI
Meeting Notes: Cruise Planning meeting scheduled 5/22. Lead PI will call in, Co-PIs will meet at WHOI
Media personnel on board: Video
Still to be confirmed, but working on having a photographer, videographer on board to document Clio sea trials.


  Clio test station 1
  Distance: 5
  Days: .5
  Latitude: 41° 34.474’ N
  Longitude: 70° 44.452’ W

  Clio test station 2
  Distance: 100
  Days: 1
  Latitude: 40° 14.756’ N
  Longitude: 70° 38.751’ W

  Clio test station 3
  Distance: 15
  Days: 1
  Latitude: 40° 1.636’ N
  Longitude: 70° 40.053’ W

  Clio test station 4
  Distance: 42
  Days: 1
  Latitude: 39° 20.148’ N
  Longitude: 70° 35.37’ W

Supporting documentation:


First priority is successful Eng dives, starting in shallow water moving to deeper areas. Initial dive test time (in to out of water) is 2hours. Based on Eng testing results, the plan is to test the vehicle in deeper water off the Shelf break out to 1000 to 2000m.

Inshore station location flexible: need 10M deep, sheltered area with low currents.

CTD work will be done when Cilo is being downloaded or nighttime operations. Max 2 CTD casts per day.

Mike Jakuba will be vehicle Expedition Leader

Mak Saito will be CTD Lead

Clio Vehicle estimates:  5'diam, 7' tall by 700kg. Sience party will provide specs and photos.

Science party would like to do dock side vehicle test (deploy over port side) on the morning of July 5th before departure.


Funding Agency: NSF
Grant or contract number: 1333212

Scientific Instrumentation for R/V Armstrong

Shipboard Equipment

ADCP 300 kHz
ADCP 150 kHz
Dynamic Positioning System
ADCP 38 kHz

CTD/Water Sampling

Wet Labs C*Star transmissometer (660nm wavelength)
SBE43 oxygen sensor
911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors
Wet Labs FLNTURTD Combination Flourometer and Turbidity Sensor

Critical CTD Sensors

Sample Storage

Scientific Walk-in Freezer
Scientific Walk-in Refrigerator
Storage Notes: We will store samples in the walk-ins.


Navigation Notes: We anticipate using Armstrong's USBL beacon to aid navigation of Clio.  We would affix the beacon as one of the first activities on board.
Winch Notes:
Winch Notes:

Standard Oceanographic Cables

Slip ring required? no
Non-standard wire required? no
Traction winch required? no

Special Requirements

Elecrical Power: no Identify 
Equipment Handling: no Identify: 
Inter/intraship Communications: no Identify: 
Science Stowage: no Identify: 
Water: no Identify: 

Additional Cruise Items/Activities

Explosive Devices:no
Portable Air Compressors:no
Flammable Gases:no
Small Boat Operations:no
SCUBA Diving Operations:no

Hazardous Material

Will hazardous material be utilized?yes
Describe deployment method and quantity:

Radioactive Material


Additional Information

Is night time work anticipated on this cruise?yes
Specialized tech support (Seabeam, coring, other):
We plan to conduct a night program of CTD casts. 2 CTD casts per day max.

Mak Saito will plan to set up clean area in lab.
Other required equipment and special needs:
Request small boat as back up for recovering vehicle if problems with operations.
Science party will supply recovery equipment to use with crane (poles, lines, hooks) to recover vehicle. Science party will provide images of connection points and dockside tests.

Loading: Due to holiday the science party will plan to stage vehicle and gear on dock June 30th. Estimated to have vehicle, one pallet of gear and other support equipment (hand carry).
Staging on the 30th will be coordinated with the arrival of AT and AR. Loading will take place on July 3rd for departure on July 5. Clean space will be set up on 3rd.

Checklist & Notes


U.S. Customs Form: no
Diplomatic Clearance: no
Date Submitted:
Date Approved:
Agent Information:
Isotope Use Approval: no
Isotope Notes:
SCUBA Diving: no


SSSG Tech: