Woods Hole Oceanographic Institution

Cruise Planning Questionnaire

The Next 'LATMIX2012'


R/V Knorr


Cruise Party

Craig Lee: Chief Scientist, Principal Investigator
Applied Physics Laboratory, University of Washington 1013 NE 40th St Seattle, WA USA 98105-6698
+1 206 685 7656

Departure: Woods Hole, MA on Feb 22, 2012

Arrival: Woods Hole, MA on Mar 17, 2012

Mobilization Date: Feb 19, 2012

Demobilization Date: Feb 18, 2012

Supporting documentation:

Operations Area: Within 300 nautical miles of the Outer Banks of North Carolina (Cape Hatteras), on the seaward side of the Gulf Stream.

Lat/Lon: 34° 0.0′ N / 74° 0.0′ W

Depth Range: min / max (m)

Will the vessel be operating within 200 NM of a foreign country? no

Science objectives

Studies of lateral mixing in the upper ocean with: (i) Knorr-  towed, undulating profilers (Triaxus and Seasoar) and Lagrangian floats and (ii) Atlantis- moving vessel profilers, gliders and drifters. A Lagrangian float will be released at selected sites. The float will be tracked acoustically by Knorr. Knorr will conduct small-scale (~5 km) surveys around the drifting float while Atlantis occupies a larger (20km) pattern around Knorr. Both ships will follow the drifting float. Surveys will last 1-5 days. 

Science Activities

Knorr will support:
(1) Towed surveys of an limited domain using the Triaxus undulating towed profiler (APL-UW)
(2) Delpoyment and recovery of Lagrangian floats.

The Lagrangian float will be released at selected sites and tracked acoustically by Knorr. Knorr will conduct small-scale (~5 km) surveys around the float, following its drift. These deployments will last 1-5 days. We anticipate executing 3-6 deployments over the course of the cruise.

We anticipate operations in rough weather, as part of the science program requires strong wind forcing. 

Pre-cruise planning meeting: Teleconference


Funding Agency: ONR/NAVY #N00014-09-1-0266

- added ONR/NAVY #N00014-09-1-0266 on Jan 8, 2012 9:05 PM by Dr Craig Michael Lee

R/V Knorr

Shipboard Equipment

ADCP 300 kHz
ADCP 75 kHz
Deionized Water System
Transducer well for visiting instrumentation

Shipboard Communication

Basic Internet access via HiSeasNet
Is there a need to receive data from shore on a regular basis?
Is there a need to transfer data to shore on a regular basis?

CTD/Water Sampling

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

Critical CTD Sensors: 

MET Sensors

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

Storage Notes:


Will you be using Long Base Line (LBL) navigation? no

Will you be using Doppler/GPS navigation? no



Navigation Notes:


CTD Winch with .322" Electro-mechanical wire
Other Portable Winch

Winch Notes: Will bring our own Dynacon winch for Triaxus/Seasoar. This is the same winch that was used aboard Oceanus for the 2011 LATMIX cruise (and aboard Knorr in 2003 for our Adriatic work).

Wire use and application


Wire Notes: 10mm electro-optical armored cable used on our Triaxus winch. This is the same cable that was used aboard Oceanus for the 2011 LATMIX cruise (and aboard Knorr in 2003 for our Adriatic work).
Slip ring required? no Number of conductors: 
Non-standard wire required? no Type: 
Traction winch required? no Describe: 

Other Science Vans:

Other Science Vans:
Science Van 1
Type/size: 10' Storage Van (APL-UW) Location: 01, after of bething van
Water: Power:no

Specialized Deck Equipment

Mooring Deployment/Recovery Equipment Required: no Type: 
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: Winch: Dynacon model 10030 • line pull 3500 lbs. • Winch cert of compliance (please use material supplied for LATMIX 2011 aboard Oceanus). • Deck mount - drawings and calculations attached. Minimum safety factor is 2.7 over cable break. Winch cert of compliance attached. • Power: 3-phase, 440V. Block: Campbell A1422D block (catalog page attached) • Armored, 10 mm diameter. • SWL 7000 lbs. • Ultimate strength 21000 lbs Cable: Rochester A305382 • Break strength 16000 lbs. • http://www.rochestercables.com/pdfs/DataLines/EOP/A305382.pdf • As an added safeguard, the Triaxus vehicle is attached to the cable through a weak link sized at 5000 lbs.

Special Requirements

Elecrical Power: yes Identify: 3-phase 440V for winch
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? no

Radioactive Material

Radioiosotopes: no

Additional Information

Is night time work anticipated on this cruise? yes

Specialized tech support (Seabeam, coring, other): 

Other required equipment and special needs: 
Date Submitted: Jan 8, 2012 9:12 PM by Dr Craig Michael Lee