Woods Hole Oceanographic Institution

Cruise Planning Synopsis

view revisions

AR16 Van Mooy "PHAT"


RV Neil Armstrong

Cruise Party

Christopher Reddy: Principal Investigator
Woods Hole Oceanographic Institution Fye 107B, MS#04 Woods Hole, Ma. USA 02543
+1 508 289 2316

Daniel Repeta: Principal Investigator
Organization Name
+1 508 289 2635

David Valentine: Principal Investigator
University of California Santa Barbara 1006 Webb Hall, Department of Earth Science Santa Barbara, CA US 93117
+1 805 893 2973

Benjamin Van Mooy: Chief Scientist
Woods Hole Oceanographic Institution Fye 119, MS#04 Woods Hole, Ma. USA 02543
+1 508 289 2322

Departure: May 3, 2017


Arrival: May 22, 2017


Operations Area

Between WH and Bermuda
Depth Range: min / max (m)
Will the vessel be operating within 200 NM of a foreign country? Canada, Bermuda
Are visas or special travel documents required? no

Science Objectives

The primary objective of this cruise is to link the cycling of phosphorus to the distribution and partitioning of biogenic hydrocarbons in the ocean.

Science Activities

  • CTDs.  "Core" CTDs will need the ship to adjust heading to prevent shadows on the CTD, if possible.  Once CTD is deep enough, ship can turn, HOWEVER, prefer to also keep deck PAR sensor out of shadow as well.  Need to put deck PAR on stbd side of ship so that shadows match the CTD.
    • Marshall has borrowed an ISIS Nitrate sensor for the CTD.  Has external battery, need to have an analog channel available.  Marshall will check on available channels on CTD and supply cable.  Presume Science will take care of the battery, but need to confirm.
  • sediment traps.  Simple net hanging at about 150m, floats and hi-flyer on top.  Has irridium, but expect to keep it in "sight" on radar.
  • net tows.  These are hand deployed phytoplankton nets.  No other net tows.
  • McLane pumps  CANCELED. No McLane pumps as per precruise meeting.
  • on-deck incubations
  • Air sampling forward.  Two sample tubes, one at rail, one about 10' up mast.  Filters will be changed about every four hours.  Still working on best location of sampling gear.  Might need 'bridge" for cables/tubes from 01 deck to mast.

Additional Info

Pre-cruise Planning Meeting: Visit WHOI


Supporting documentation:



Funding Agency: NSF
Grant or contract number: 1536346

Scientific Instrumentation for R/V Armstrong

Other Science Vans:

Shipboard Equipment

ADCP 300 kHz
ADCP 150 kHz
Deionized Water System
Fume Hood
Incubation Area
ADCP 38 kHz

Shipboard Communication

Is there an expectation to use Skype or any other real-time video conference program?
Basic Internet access via HiSeasNet

CTD/Water Sampling

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

Critical CTD Sensors

ISIS nitrate sensor, Marshall has found and will setup and supply.

MET Sensors

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

Sample Storage

Freezer -70°C 25 cu. ft.
Freezer -70°C 3.2 cu. ft. ea.
Scientific Walk-in Freezer
Scientific Walk-in Refrigerator
Storage Notes: Reefer in lab other than the walk-in?  unresolved.  (rsl)


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:


Other Portable Winch
Winch Notes: We need a lightweight winch and a suitable block for our sediment net traps deployments, which are < 200 lbs in air. Will be using small DT winch from long core group.

Wire use and application

CTD Winch with .322" Electro-mechanical wire
Winch Notes: In addition to the wire for the CTD, we need the 3/8" hydro wire to hang McLane pumps from.  These pumps are in the neighborhood of 100 lbs each in air, and we may hang a half dozen.
Canceled as per pre-cruise meeting.

Standard Oceanographic Cables

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

Portable Vans

Isotope Van
Science Van 1
Type/size: Additional rad van Location:
Water: Power:

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? 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?yesDescribe deployment method and quantity:
We do not expect to use hazardous materials outside of the lab spaces.

Radioactive Material


Additional Information

Is night time work anticipated on this cruise?yesSpecialized tech support (Seabeam, coring, other):
Night-time ops will consist of CTD and McLane pump deployments. MacLane pumps canceled as per pre-cruise meeting.Other required equipment and special needs:
Science party will bring a gas chromatograph.  It has a 110V 20A plug.  Request for clean power outlets on 20 amp circut. The GC will use hydrogen gas.  Need to be plumbed from outside?

Science party may bring a refrigerator in lab.

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: