Woods Hole Oceanographic Institution

Cruise Planning Synopsis

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AR30-05: Hodgkiss "MF Noise"


RV Neil Armstrong

Cruise Party

William Hodgkiss: Chief Scientist, Principal Investigator
9500 Gilman Dr. La Jolla, CA US 92093-0701
+1 858 534 1798

Departure: Aug 4, 2018

Reykjavik, Iceland

Arrival: Mar 21, 2018

Reykjavik, Iceland

Operations Area

Norwegian Sea ~300 nm ENE of Iceland
Lat/Lon: 66° 45.0′ N / 1° 30.0′ W
Depth Range: 2000 / 4000
Will the vessel be operating within 200 NM of a foreign country? N/A
Are visas or special travel documents required? no

Science Objectives

Observation of the mid-frequency ambient noise spatial structure and temporal fluctuation characteristics.

Science Activities

Thermistor string deployment/recovery. Acoustic array deployment/recovery. Acoustic source transmissions (fixed stations and source tows).

Additional Info

Pre-cruise Planning Meeting: Teleconference


Supporting documentation:



Funding Agency: ONR/NAVY
Grant or contract number: ONR 17-C-7049

Scientific Instrumentation for R/V Armstrong

Shipboard Equipment

Bathymetry System 12 kHz
ADCP 300 kHz
Sippican XBT System (Mark 21)
Bathymetry System 3.5 kHz
ADCP 150 kHz
EM122 (12 kHz) Multibeam Echosounder
Shipboard Equipment Notes:
12 days of wamos data.   Need more information about how they process the WAMOS data and what they want for data.  Also, 24/7, or just on station?  rsl
All acoustics off for certain time periods, including ships doppler.  What can be on/off will vary depending on distance from the instrument.  rsl

EK 80.  Interested in observing,  but no data will be recorded.  rsl

Shipboard Communication

Basic Internet access via HiSeasNet

CTD/Water Sampling

SBE43 oxygen sensor
911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors

Critical CTD Sensors

MET Sensors

Wind speed and direction
Storage Notes:
Navigation Notes:
Winch Notes:

Please note that we will need 220V 3P 20A service on deck for our electric winch and air supply for 2 air tuggers (BU7A). 

Winch Notes:

Standard Oceanographic Cables

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

Special Requirements

Elecrical Power: yes Identify Please note that we will need 220V 3P 20A service on deck for our electric 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?yes
Describe deployment method and quantity:
Lithium batteries used for powering the acoustic array.

Radioactive Material


Additional Information

Is night time work anticipated on this cruise?no
Specialized tech support (Seabeam, coring, other):
Other required equipment and special needs:

Mob/Demob Special Requirements: We will unload the container on the dock and will need a large forklift (> 5000 lbs capacity). We can operate the forklift if allowed, otherwise we will need an operator. Need ship crane support to load equipment on ship (max load 5000 lbs). We will plan to store the empty container on the dock if allowed, otherwise we would need to store on the ship for the experiment. 

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: