AR67

Ship

RV Neil Armstrong

Vehicles

Cruise Party

David Dall'osto: Principal Investigator, Chief Scientist
APL:UW USA
+1 206 221 5085
dallosto@uw.edu

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

David Knobles: Chief Scientist, Principal Investigator
Knobles Scientific and Analysis, LLC 5416 Tortuga Trail Austin, Texas USA 78731
+1 512 796 2090
dpknobles@kphysics.org

James Miller: Chief Scientist, Principal Investigator
University of Rhode Island USA
+1 401 741 4736
miller@uri.edu

Departure: WHOI on May 7, 2022

Arrival: WHOI on Jun 7, 2022

Mobilization Date: May 5, 2022

Demobilization Date: Jun 8, 2022

Supporting documentation:

»site2_sbcexp2022.jpg
»site1_sbcexp2022.jpg
»Armstrong_2022_psw_dpk_version8.xlsx

Operations Area: New England Continental Shelf

Lat/Lon: 40° 30.0′ N / 70° 40.0′ W

Depth Range: 70 / 500

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

Science objectives

At two locations perform underwater acoustic experiments for the purpose of inferring the properties of the seabed, such as sound speed, attenuation, and density as a function of depth

Science Activities

Deploy a varity of acoustic arrays and deploy a variety of acoustic sources.  Also, we will be measuring the sound speed profile.  The arrays include vertical line arrays and 2-D L-arrays.  There will be both pressure and particle velocity sensors.  The sources include impulsive sources, towed sources, and fixed sources.  There will also be deployment of an AUV.

Pre-cruise planning meeting: Teleconference

Media personnel on board: No media personnel

Stations:

  Shelf Slope
  Distance: 90
  Days: 13
  Latitude: 39° 55.0’ N
  Longitude: 70° 40.0’ W

  Mudpatch
  Distance: 65
  Days: 13
  Latitude: 40° 28.3’ N
  Longitude: 70° 35.8’ W

Funding Agency: ONR/NAVY #ONR Code 322

- added ONR/NAVY #ONR Code 322 on Mar 7, 2022 12:28 PM by
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R/V Armstrong

Shipboard Equipment

Bathymetry System 12 kHz
Sippican XBT System (Mark 21)
Bathymetry System 3.5 kHz
A-Frame
Dynamic Positioning System
Crane
EM710 MkII (40 to 100 kHz) Multibeam Echosounder


Shipboard Equipment Notes: We need a CTD.   We would like to have a back up because in May 2021 experiment the
Armstrong lost the CTD.  As CS, I wish to note that if we were to loose the CTD again,
it would be catastrophic.  This is why we need a spare.

Shipboard Communication

Basic Internet access via HiSeasNet


Shipboard Communication Notes:

CTD/Water Sampling

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

Critical CTD Sensors: 

MET Sensors

Barometric Pressure
Air temperature
Precipitation
Relative Humidity
Wind speed and direction


Storage Notes: We need a back up CTD in the event that we loose primary.  Also, we want a large store of XBTs

Navigation

GPS

Navigation Notes:


Winch Notes: We have communicated through John Kemp for a winch from Wast coast pool



Wire Notes:

Slip ring required? no	Number of conductors:
Non-standard wire required? no	Type:
Traction winch required? no	Describe:

Other Science Vans:

Over the Side Equipment

Will you be bringing any equipment (winches, blocks, etc.) that lowers instruments over the side? yes

Details: We will be deploying acoustic arrays and environmental arrays and also be deploying and recovering an AUV

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: yes 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: Mar 7, 2022 12:42 PM