OSNAP 2022

Ship

RV Neil Armstrong

Vehicles

Cruise Party

Robert Pickart: Principal Investigator
Woods Hole Oceanographic Institution Clark 359B, MS#21 Woods Hole, Ma. USA 02543
+1 508 289 2858
rpickart@whoi.edu

Fiamma Straneo: Chief Scientist, Principal Investigator
Organization Name USA
+1 858 822 1413
fstraneo@ucsd.edu

Departure: Reykjavik Iceland on Aug 15, 2022

Arrival: Nuuk Greenland on Sep 21, 2022

Mobilization Date: Aug 12, 2022

Demobilization Date: Sep 23, 2022

Supporting documentation:

»OSNAP2022stations.xlsx
»OSNAP_2022_mooring_locations.xlsx
»G_moorings.pdf
»OSNAP2022.pdf
»OSNAP_Pickart_2020_As_Deployed.pdf
»OSNAP_Straneo_2020_As_Deployed.pdf

Operations Area: Cape Farewell; Southeast and Southwest Greenland

Lat/Lon: 59° 20.0′ N / 43° 50.0′ W

Depth Range: 100 / 3500

Will the vessel be operating within 200 NM of a foreign country? Denmark/Greenland
Are visas or special travel documents required? no

Science objectives

This research is part of the Overturning in the Subpolar North Atlantic Program (OSNAP), an effort to determine the strength of the meridional overturning circulation and associated heat and freshwater fluxes in the subpolar North Atlantic. It is a collaborative program with scientists from several nations, including the U.K., the Netherlands, Germany, France, Canada and China.

The specific objectives of this cruise are as follows:

1. To service 20 moorings in the southeast Labrador Sea and the southwest Irminger Sea.
2. To conduct a hydrographic/velocity survey in the vicinity of Cape Farewell and over the southeast and southwest Greenland shelves  

Science Activities

1. We will recover and redeploy 20 moorings. There are two types of moorings: tall oceanographic moorings (11) and shelf-tripods (9).

2. We will occupy CTD/LADCP/water sampling stations at all of the mooring sites, and also carry out a CTD/LADCP/water sampling survey.

3. We will collect underway data throughout the cruise (vessel-mounted ADCP, Knudsen, met sensors).

4. We will deploy four sets of drifters and floats (three drifters and one float in each set).

Pre-cruise planning meeting: Teleconference

Stations:

Funding Agency: NSF #OCE 1948482

- added NSF #OCE 1948482 on Mar 4, 2022 11:23 PM by James Holte

R/V Armstrong

Shipboard Equipment

Bathymetry System 12 kHz
ADCP 300 kHz
ADCP 150 kHz
A-Frame
Deionized Water System
Science Underway Seawater System
12 kHz Pinger for Wire Use
Fume Hood
EM122 (12 kHz) Multibeam Echosounder
EK80 Sonar
Dynamic Positioning System
K-Synch System
Plotters
ADCP 38 kHz
Crane
EM710 MkII (40 to 100 kHz) Multibeam Echosounder


Shipboard Equipment Notes:

Shipboard Communication

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


Shipboard Communication Notes: We hope to send CTD profiles and bottle salts to Leah McRaven to help with CTD calibration/monitoring during the cruise.

CTD/Water Sampling

Wet Labs ECO-AFL fluorometer
Wet Labs C*Star transmissometer (660nm wavelength)
Seapoint STM turbidity sensor
Mocness
SBE43 oxygen sensor
911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors
Wet Labs FLNTURTD Combination Flourometer and Turbidity Sensor

Critical CTD Sensors:  We need a complete backup CTD system. Coordinating this with Marshall Swartz.

CTD-Related Equipment

Lowered Acoustic Doppler Current Profiler (LADCP)

Hydrographic Analysis Equipment

Salinometer
Salt Bottles (2 cases of 125 ml provided)

MET Sensors

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


Storage Notes:

Navigation

GPS

Navigation Notes:

Winches

Trawl Winch with 9/16th trawl wire

Winch Notes: John Kemp will bring a Lebus winch. 
The trawl wire will be used if we have to drag for a mooring.

Wire use and application

CTD Winch with .322" Electro-mechanical wire
Trawl Winch with 9/16th trawl wire


Wire Notes: The trawl wire will be used if we have to drag for a mooring.

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: John Kemp will bring a Lebus winch and blocks for mooring work.

Special Requirements

Elecrical Power: no	Identify:
Equipment Handling: yes	Identify: Mooring deployment
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 will be contained in the instruments recovered/deployed on the moorings.

Chemicals will be used in the lab spaces for oxygen/alkalinity/DOC analysis of water samples. 

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 2:21 PM by James Holte