AR60-02 (NORSE Pilot)

Ship

RV Neil Armstrong

Vehicles

Cruise Party

Luc Rainville: Chief Scientist, Principal Investigator
University of Washington 1013 NE 40th St Seattle, WA USA 98105
+1 206 685 4058
lucrain@uw.edu

Departure: Reykjavik on Sep 1, 2021

Arrival: Reykjavik on Oct 7, 2021

Mobilization Date: Aug 30, 2021

Demobilization Date: Oct 8, 2021

Supporting documentation:

Operations Area: North Atlantic

Lat/Lon: 70° 0.0′ N

Depth Range: 0 / 4000

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

Science objectives

The NORSE DRI effort will focus on characterizing the key physical parameters and processes that govern the predictability of “upper-ocean rapid evolution events” occurring in the ice-free high latitudes. The goal of the program will be to identify which observable parameters are most influential in improving model predictability through inclusion by assimilation, and to field an autonomous observing network that optimizes sampling of high-priority fields. The objective of the DRI is to demonstrate improvements in the predictability of the upper ocean physical fields associated with velocity and acoustic propagation over the course of the study. 

The ship will support autonomous observations using an array of surface drifters, buoyancy-driven gliders and floats, to make advances towards the general NORSE objectives:

1. Provide a better understanding of the coupled processes that drive rapid changes in the upper ocean at high latitudes, leveraging the adaptability and persistence of autonomous platforms. 

2. Improve predictive capability for sound propagation, transmission loss, and surface duct formation, particularly by using distributed autonomous systems.

Science Activities

• Deploy and recover 2 Seagliders (APL-UW) for environment characterization. 

• Deploy and recover 2 Slocum gliders for environment characterization and acoustics tests. 

• Deploy 1 Slocum glider from Dr. Våge & Fer’s group (Norway) for the NorEMSO project (Greenland Sea). 

• Deploy 16 surface drifters

• Deploy and recover 4 SWIFTs. 

• Conduct several realizations of an acoustic transmission experiment, where a Slocum glider records the signal transmitted by a J-9 source deployed from the ship through an upper ocean environment characterized by autonomous platforms. 

• Sample several frontal zonea with the underway CTD system and bow chain.

Pre-cruise planning meeting: Teleconference

Stations:

Funding Agency: ONR/NAVY #not available yet

- added ONR/NAVY #not available yet on Jun 3, 2021 8:38 PM by Luc Rainville

R/V Armstrong

Shipboard Equipment

ADCP 300 kHz
ADCP 150 kHz
A-Frame
EM122 (12 kHz) Multibeam Echosounder
Dynamic Positioning System
WAMOS
ADCP 38 kHz
Crane


Shipboard Equipment Notes:

Shipboard Communication

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


Shipboard Communication Notes: We would like to use the WHOI ftp shore server (armsci@128.128.250.51:outgoing/), if still available, for shore to ship file transfer. 

CTD/Water Sampling

Wet Labs ECO-AFL fluorometer
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 don't need the bottles (no water sampling). Mostly CTD, but Chlr. and backscatter might be usefu

CTD-Related Equipment

Lowered Acoustic Doppler Current Profiler (LADCP)

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:

Wire use and application

CTD Winch with .322" Electro-mechanical wire
3/8" Hydro Wire


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? yes

Describe deployment method and quantity:
Lithium batteries (in pressure cases).

Radioactive Material

Radioiosotopes: no

Additional Information

Is night time work anticipated on this cruise? yes

Specialized tech support (Seabeam, coring, other):  Occasional full water depth CTD.   We don't need around-the-clock SSSG support...

LADCP system would be nice if available, but we don't plan on doing too many deep CTD casts. 


Other required equipment and special needs: 

Jim Thomson  is planning on sending an Airmar WX220 with 115’ cable to be mounted on the stern A-frame.  https://www.airmartechnology.com/weather-description.html?id=153  This streams NMEA sentences (ASCII text) over serial RS232. Can it be incorporated into the SSSG data stream (underway data)?

Date Submitted: Jun 4, 2021 12:24 AM by Luc Rainville