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KN218

Ship

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 jtoole@whoi.edu

Departure: May 1, 2014
Woods Hole, MA
Arrival: May 12, 2014
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 Finale 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 6 subsurface moorings.    - no moorings are getting redeployed.  This cruise is the end of Line W (at least for now) Conduct 26 full-depth CTD/rosette casts.
Additional Info
Pre-cruise Planning Meeting: Visit WHOI
Stations:
Supporting documentation:
»Line_W_2012_2014_morring_logs.pdf
»KN218_Deck_load_Toole.jpg
»sciberth_KN218.pdf
»Toole_Precruise_KN218.pdf
»Line_W_finale__personnel_April_9.docx
»line_W_Positions.docx

Funding

Funding Agency: NSF

Grant or contract number: 1332667

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
Wet Labs FLNTURTD Combination Flourometer and Turbidity Sensor
Critical CTD Sensors
Seapoint STM turbidity sensor , SBE43 oxygen sensor
CTD-Related Equipment
Lowered Acoustic Doppler Current Profiler (LADCP)
Hydrographic Analysis Equipment
Oxygen Sample Bottles (available in 150 ml sizes)
Salinometer
Dissolved Oxygen Titration System (Brinkmann Titrator)
Salt Bottles (2 cases of 125 ml provided)
MET Sensors
Barometric Pressure
Air temperature
Precipitation
Relative Humidity
Wind speed and direction
Short Wave Solar Radiation
Sample Storage
Freezer -70°C 3.2 cu. ft. ea.
Storage Notes: Dave Wellwood will be our hydrographer on the cruise.  I trust he will bring what we need (i.e., sufficient trays of sample bottles)
Navigation
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
GPS
Navigation Notes: Heading
Winches
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:
Oxygen pickling chemicals, GC's for CFC analyses

Radioactive Material

Radioiosotopes:yes

Additional Information

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

Eugene Gorman w/ GC Mas Spec (Main Lab)
@ WHOI April 25th

Checklist & Notes

Checklist
U.S. Customs Form:	no
Diplomatic Clearance:	no
Date Submitted:
Date Approved:
Agent Information:
Woods Hole: Chad Smith Assistant Marine Operations Coordinator Woods Hole Oceanographic Institution Office: (508)-289-3811 Mobile: (617)-999-4163 Email: csmith@whoi.edu
Countries:
USA
Notes:
N/A
Isotope Use Approval:	yes
Isotope Notes:
GC Mass Spectrometer Main Lab Responsible Party: Eugene Gorman egorman@ldeo.columbia.edu
SCUBA Diving:	no
Checklist
SSSG Tech:
Amy Simoneau, Ellen Roosen
Mob: April 29th & 30th Demob: May 12th & 13th Iselin Pier, WHOI 98 Water St Woods Hole, MA POC: Chad Smith csmith@whoi.edu