Woods Hole Oceanographic Institution

Cruise Planning Synopsis

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AT27 A & B


R/V Atlantis

Cruise Party

Albert Plueddemann: Chief Scientist
Woods Hole Oceanographic Institution Clark 202A, MS#29 Woods Hole, Ma. USA 02543
+1 508 289 2789

Robert Weller: Principal Investigator
Woods Hole Oceanographic Institution Clark 204A, MS#29 Woods Hole, Ma. USA 02543
+1 508 289 2508

Departure: Apr 28, 2015


Arrival: May 14, 2015


Operations Area

Continental Shelf and slope south of New England
Lat/Lon: 40° 0.0′ N / 71° 0.0′ W
Depth Range: 90-500 / max (m)
Will the vessel be operating within 200 NM of a foreign country? no
Are visas or special travel documents required? no

Science Objectives

This cruise represents the fourth major infrastructure service cruise for the Pioneer Array of the National Science Foundation’s Ocean Observatories Initiative (OOI). The Pioneer Array will include a network of moorings and autonomous robotic vehicles to monitor waters of the continental shelf and slope south of New England and, in particular, the shelfbreak front where nutrients and other properties are exchanged between the coast and the deep ocean. Data from the Pioneer Array will provide new insights into coastal ocean processes such as shelf/slope nutrient exchange, air-sea property exchange, carbon cycling, and ocean acidification that are important to the New England shelf, and to continental shelf ecosystems around the world. For further information, see http://www.oceanobservatories.org.

Science Activities

The Pioneer-4 cruise has multiple main objectives and several ancillary objectives. The main objectives can be grouped into seven categories: 1) Deploy 3 Coastal Surface Moorings (CSMs), 2) Recover 2 CSMs, 3) Deploy 5 Coastal Profiler Moorings (CPMs), 4) Recovery 3 CPMs, 5) Deploy 6 Coastal Gliders, 6) Recover 5 Coastal Gliders, 7) Perform field evaluation activities, including CTD casts with water sampling. The ancillary objectives include 1) Compare buoy and shipboard data, 2) Deploy 1 Coastal Surface Piercing Profiler (CSPP), 3) Deploy and operate an AUV, 4) Conduct cross-shelf CTD surveys in the vicinity of the moored array, and 5) Conduct surveys using shipboard sensors (ADCP, thermosalinograph) in the Pioneer moored array region.

Additional Info

Pre-cruise Planning Meeting: Visit WHOI


Supporting documentation:

Notes: This cruise will be done in 2 LEGS. 
LEG A:  April 28 - May 4  (AT27 A)
LEg B:  May 6 - May 14 (AT27 B)
updated 4/28/15 by eric benway


Funding Agency: NSF
Grant or contract number: OOI

Scientific Instrumentation for R/V Atlantis

Other Science Vans:

Shipboard Equipment

Bathymetry System 12 kHz
ADCP 75 kHz
Science Underway Seawater System
Navigation - Heading
Navigation - Position

Shipboard Communication

Basic Internet access via HiSeasNet

CTD/Water Sampling

911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors
Biospherical underwater PAR (1000m depth limit) with reference Surface PAR
SBE43 oxygen sensor
Wet Labs C*Star transmissometer (660nm wavelength)
Wet Labs FLNTURTD Combination Flourometer and Turbidity Sensor

Critical CTD Sensors

Hydrographic Analysis Equipment

Dissolved Oxygen Titration System (Brinkmann Titrator)
Oxygen Sample Bottles (available in 150 ml sizes)
Salt Bottles (2 cases of 125 ml provided)

MET Sensors

Barometric Pressure
Air temperature
Relative Humidity
Wind speed and direction
Short Wave Solar Radiation

Sample Storage

Freezer -70°C 3.2 cu. ft. ea.
Storage Notes: Freezer is backup for chlorophyll and nutrient samples


Will you be using Long Base Line (LBL) navigation? no
How many nets? null
How many tansponders? null
Will you be using Ultra-short baseline (USBL) navigation?no


Navigation Notes: CANCELLED THIS PORTION OF CRUISE:  3/15 (EB). Possible may happen in Fall 2015.
REMUS-600 AUV operation presently under consideration. Ship's role in vehicle navigation and/or need to deploy LBL navigation beacons not clear at present.


CTD Winch with .322" Electro-mechanical wire
Other Portable Winch
Trawl Winch with 9/16th trawl wire
Winch Notes: Science party to supply split-drum TSE winch and Lantec heavy lift winch.
Winch Notes:

Standard Oceanographic Cables

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

Portable Vans

Chemical Storage Van
Science Van 1
Type/size: Flat Rack Location: top of storage van 01 deck
Water: Power:
Science Van 2
Type/size: Storage Container Location: 01 Deck
Water: Power:
Science Van 3
Type/size: Rigging Van Location: 01 Deck
Water: Power:

Specialized Deck Equipment

Mooring Deployment/Recovery Equipment Required: yes Type: Lantec and TSE winch, tuggers
Cruise Specific Science Winch Required: no Type: 
Nets Required: no Type: 

Over the Side Equipment

Will you be bringing any equipment (winches, blocks, etc.) that lowers instruments over the side? no

Special Requirements

Elecrical Power: yes Identify TSE winch, Lantec winch, rigging van
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?yesDescribe deployment method and quantity:
1000 liters methanol fuel bladder in surface mooring buoy. Standard mooring deployment methods. Spill kit will be supplied.

Radioactive Material


Additional Information

Is night time work anticipated on this cruise?yesSpecialized tech support (Seabeam, coring, other):
Other required equipment and special needs:

Checklist & Notes


U.S. Customs Form: no
Diplomatic Clearance: no
Date Submitted:
Date Approved:
Agent Information:

United States (Woods Hole, MA)

Attn: Scientist's Name - Voy#
c/o WHOI
266 Woods Hole Rd.
Woods Hole, MA 02543

Eric Benway
Marine Operations Coordinator
MS 37
266 Woods Hole, MA 02543
Phone: 508-289-3770
None required
Isotope Use Approval: no
Isotope Notes:
SCUBA Diving: no


SSSG Tech:
Dave Sims (leg 1), Allison Heater (leg 1,2,3), Catie Graver (leg 2 & 3)
USCG Inspection will occur before this voyage.