Woods Hole Oceanographic Institution

Cruise Planning Synopsis

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Toole KN208


R/V Knorr

Cruise Party

John Toole: Chief Scientist, Principal Investigator
Woods Hole Oceanographic Institution Clark 337, MS#21 Woods Hole, Ma. USA 02543
+1 508 289 2531

Departure: Aug 15, 2012

Woods Hole, MA

Arrival: Aug 30, 2012

Woods Hole, MA

Operations Area

West Atlantic
Lat/Lon: 40° 18.0′ N / 70° 6.0′ W
Depth Range: 40 / 5300
Will the vessel be operating within 200 NM of a foreign country? Bermuda
Are visas or special travel documents required? no

Science Objectives

Line W is one component of a long-term climate observing system that is positioned to quantify variability in the deep limb of the Atlantic meridional overturning circulation (MOC). The field program has been operating since 2004 and includes a 6-element array of instruments situated down the continental slope south of Woods Hole and is augmented by yearly occupations of a hydrographic section along this line extending toward Bermuda.  The moored array, which utilizes McLane profilers, current meters plus T/C sensors, is designed to quantify changes in DWBC / Gulf Stream water properties, stratification (potential vorticity) and transport. Shipboard observations using CTD, LADCP and discrete sampling for salinity, oxygen, CFCs, SF6 and I129 measure the water column properties at high spatial resolution to help verify that the array resolves interannual signals.  These measurements are key to clarifying the deep ocean response to variability in high-latitude air-sea exchanges and, ultimately, the ocean's role in global climate variability through changes in its transport of heat and freshwater.

Science Activities

Recover and deploy 6 subsurface moorings.
Conduct 26 CTD/rosette casts.

Additional Info

Pre-cruise Planning Meeting: Visit WHOI
Meeting Notes: 3/15/12, 38 Water ST


Supporting documentation:



Funding Agency: NSF
Grant or contract number: 0726720

Scientific Instrumentation for R/V Knorr

Other Science Vans:

Shipboard Equipment

Bathymetry System 12 kHz
Bathymetry System 3.5 kHz
ADCP 75 kHz
Deionized Water System
Science Underway Seawater System
12 kHz Pinger for Wire Use

Shipboard Communication

Basic Internet access via HiSeasNet

CTD/Water Sampling

Wet Labs ECO-AFL fluorometer
Wet Labs C*Star transmissometer (660nm wavelength)
Seapoint STM turbidity sensor
SBE43 oxygen sensor
911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors

Critical CTD Sensors

CTD-Related Equipment

Lowered Acoustic Doppler Current Profiler (LADCP)

Hydrographic Analysis Equipment

Oxygen Sample Bottles (available in 150 ml sizes)
Dissolved Oxygen Titration System (Brinkmann Titrator)
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:


Will you be using Long Base Line (LBL) navigation? no
How many nets? null
How many tansponders? null
Will you be using Doppler/GPS navigation?no


Navigation Notes: Heading


Mooring / TSE winch
CTD Winch with .322" Electro-mechanical wire
Winch Notes:
Wire Notes:

Standard Oceanographic Cables

Slip ring required? no Number of conductors: 
Non-standard wire required? no Type: 
Traction winch required? no Describe: 
Science Van 1
Type/size: 20' storage van for mooring stuff Location: main deck
Water: Power:

Specialized Deck Equipment

Mooring Deployment/Recovery Equipment Required: yes Type: TSE , ship's crane, poles/hook
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? yes Details:
blocks for mooring work

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?yesDescribe deployment method and quantity:
Eugene Gorman- Mass Spec w/ Radioactive source

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: yes
Date Submitted: Apr 10, 2012
Date Approved: Jul 27, 2012
Agent Information:
Chad Smith
Assistant Marine Operations Coordinator
Woods Hole Oceanographic Institution
38 Water Street MS #37
Woods Hole, MA 02543
Office: (508)-289-3811
Email: csmith@whoi.edu
Isotope Use Approval: yes
Isotope Notes:
Gas Chromatagraph - LDEO - Gorman.
SCUBA Diving: no


SSSG Tech:
Laura Stolp, Dave Simms
Mob and Demob: WHOI