OSNAP East 2022 Johns

Ship

RV Neil Armstrong

Vehicles

Cruise Party

William JOhns: Chief Scientist, Principal Investigator
RSMAS, University of MIami 4600 Rickenbacker Causeway Miami, FL USA 33149
+1 305 421 4054
bjohns@rsmas.miami.edu

Departure: Reykjavik on Jul 18, 2022

Arrival: Reykjavik on Aug 9, 2022

Mobilization Date: Jul 15, 2022

Supporting documentation:

»Cruise_Prospectus_Armstrong_2022.docx

Operations Area: NA5

Lat/Lon: 58° 0.0′ N / 25° 0.0′ E

Depth Range: 1400 / 2900

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

Science objectives

This research is part of the U.S.-led 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.

The specific objectives of this cruise are: 

1. To perform mooring operations along the OSNAP East line between the Iceland and Irminger basins, including servicing (recovery and redeployment) of 12 current meter moorings.
2. To conduct standard CTD (Conductivity-Temperature-Depth) and Lowered ADCP (Acoustic Doppler Current Profiler) stations at approximately 42 sites along the same mooring line.
3. To acquire continuous underway data (vessel-mounted ADCP data, meteorological data, and surface temperature and salinity data) along the cruise track, and to perform selected additional CTD stations along the cruise track.

Science Activities

Mooring operations (recovery and redeployment)
CTD operations

Pre-cruise planning meeting: Teleconference

Stations:

Funding Agency: NSF #OCE1948198

- added NSF #OCE1948198 on Feb 24, 2022 2:54 PM by Dr. William JOhns

R/V Armstrong

Shipboard Equipment

Bathymetry System 12 kHz
ADCP 150 kHz
A-Frame
Science Underway Seawater System
ADCP 38 kHz
Crane
EM710 MkII (40 to 100 kHz) Multibeam Echosounder


Shipboard Equipment Notes: We have requested the use of a Lebus winch for this cruise.

Shipboard Communication

Basic Internet access via HiSeasNet


Shipboard Communication Notes:

CTD/Water Sampling

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: 

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
UNOLS Winch Pool

Winch Notes: Trawl winch for mooring dragging (emergency only).
A LEBUS winch will be used for mooring deployments/recoveries.

Wire use and application

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


Wire Notes:

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

Other Science Vans:

Other Science Vans:

Science Van 1
Type/size: standard 20'		Location: aft port deck behind main lab
Water:		Power:??

Over the Side Equipment

Will you be bringing any equipment (winches, blocks, etc.) that lowers instruments over the side? no

Special Requirements

Elecrical Power: yes	Identify: Power feed to Lebus 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

Radioactive Material

Radioiosotopes: no

Additional Information

Is night time work anticipated on this cruise? yes

Specialized tech support (Seabeam, coring, other):  CTD

Other required equipment and special needs: 
Date Submitted: Mar 2, 2022 6:49 PM by Dr. William JOhns