OTZ Network mooring deployment

Ship

RV Neil Armstrong

Vehicles

Cruise Party

Andone Lavery: Chief Scientist
Woods Hole Oceanographic Institution Bigelow 211, MS#11 Woods Hole, Ma. USA 02543
+1 508 289 2345
alavery@whoi.edu

Simon Thorrold: Principal Investigator
Woods Hole Oceanographic Institution Marine Research Facility 223, MS#50 Woods Hole, Ma. USA 02543
+1 508 289 3366
sthorrold@whoi.edu

Departure: Woods Hole on Jul 6, 2021

Arrival: Woods Hole on Jul 12, 2021

Mobilization Date: Jul 5, 2021

Demobilization Date: Jul 12, 2021

Supporting documentation:

»Screen_Shot_2021-05-26_at_9.38.51_AM.png
»Waypoints_Excel_Form_265784_AR21.xlsx

Operations Area: Northwest Atlantic Ocean

Lat/Lon: 38° 0.0′ N / 70° 0.0′ W

Depth Range: 2,000 / 5,000

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

Science objectives

1) Initiate construction of the OTZ Observation Network by deploying three oceanographic moorings (two sound-source moorings and one bioacoustic/sediment-trap mooring);

(2) Test critical components of the OTZ Observation Network that will be used to advance critical scientific gaps in knowledge of the Northwest Atlantic mesopelagic by conducting integrated and adaptive surveys designed to advance understanding of: biomass, distribution, biodiversity, life histories of tz animals, structure of food webs, and biological and physical processes that impact C transport and consumption.

Science Activities

Deploy, recover and re-deploy bioacoustic mooring with sediment trap.
Deploy (beginning of cruise) and then recover (end of cruise) MINIONs and floating sediment traps in vicinity of bioacoustics mooring.
EK80 data collection along cruise track at periodic intervals.
Deploy and test two RAFOS sound source moorings.
Deploy glider for full ocean depth test of RAFOS Ocean Acoustics Monitoring (ROAM) tags.
Conduct CTD (5) casts to collect samples for thorium isotope analysis.

Pre-cruise planning meeting: Teleconference

Stations:

  RAFOS Two
  Distance: 350
  Days: 0.2
  Latitude: 37° 0.0’ N
  Longitude: 63° 0.0’ W

  RAFOS One
  Distance: 250
  Days: 0.2
  Latitude: 35° 0.0’ N
  Longitude: 70° 0.0’ W

  Bioacoustics mooring
  Distance: 150
  Days: 0.5
  Latitude: 39° 0.0’ N
  Longitude: 70° 20.0’ W

Funding Agency: OTZ Project (WHOI Internal) #25280807

- added OTZ Project (WHOI Internal) #25280807 on May 26, 2021 12:15 PM by Simon R. Thorrold

R/V Armstrong

Shipboard Equipment

A-Frame
EK80 Sonar


Shipboard Equipment Notes:

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: 

Storage Notes:

Navigation

GPS

Navigation Notes:


Winch Notes:



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? 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? no

Radioactive Material

Radioiosotopes: no

Additional Information

Is night time work anticipated on this cruise? yes

Specialized tech support (Seabeam, coring, other):  A tech from Mooring Group will be part of science party.

Other required equipment and special needs: 
Date Submitted: May 26, 2021 12:24 PM by Simon R. Thorrold