AR58

Ship

RV Neil Armstrong

Vehicles

Cruise Party

Glen Gawarkiewicz: Chief Scientist, Principal Investigator
Woods Hole Oceanographic Institution Clark 343C, MS#21 Woods Hole, Ma. USA 02543
+1 508 289 2913
ggawarkiewicz@whoi.edu

Departure: Woods Hole on Jun 18, 2021

Arrival: Woods Hole on Jul 2, 2021

Mobilization Date: Jun 17, 2021

Demobilization Date: Jul 3, 2021

Supporting documentation:

»AdaptiveSampling.docx

Operations Area: Continental Shelf south of New England

Lat/Lon: 40° 15.0′ N / 71° 0.0′ W

Depth Range: 50 / 500

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

Science objectives

Identify and map Salinity Maximum Intrusions extending from upper continental slope onto continental shelf. Make turbulence measurements to identify the spatial and temporal patterns of mixing around the intrusions. Determine their cross-shelf extend and how rapidly they evolve in time.

Science Activities

Primary activities will be deployment of 4 AUVs simultaneously as well as night-time turbulence measurements. We will also be using the shipboard CTD.

Pre-cruise planning meeting: Teleconference

Already scheduled

Stations:

Funding Agency: NSF #1851261

- added NSF #1851261 on May 3, 2021 9:23 PM by Glen Gawarkiewicz

R/V Armstrong

Shipboard Equipment

Bathymetry System 12 kHz
ADCP 300 kHz
Bathymetry System 3.5 kHz
ADCP 150 kHz
A-Frame
Science Underway Seawater System
EK80 Sonar
Dynamic Positioning System
K-Synch System


Shipboard Equipment Notes: ADCP, CTD, EK80 will all be fundamental tools for the study. We will also need to use the
bathymetry system for shallow water. Will be operating in <500 m for the experiment.

Shipboard Communication

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


Shipboard Communication Notes: Will be communicating with Ruth Musgrave at Dalhousie about turbulence sampling as well as Svenja Ryan at WHOI about SST and ocean color imagery.

CTD/Water Sampling

Wet Labs ECO-AFL fluorometer
Wet Labs C*Star transmissometer (660nm wavelength)
Seapoint STM turbidity sensor
SBE43 oxygen sensor
911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors
Biospherical underwater PAR (1000m depth limit) with reference Surface PAR

Critical CTD Sensors: 

Hydrographic Analysis Equipment

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:


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? yes

Details: We will be deploying a VMP Turbulence Profiler from the rail. It will use a motorized fishing reel to operate. We will need a rig to attach it to the rail at the stern. The weight of the VMP in air is 10 kg in air and 4.1 kg in water. The reel uses 500 lb. test line.

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): 

Other required equipment and special needs:  We will be doing AUV work and shipboard CTD during the day and turbulence profiling during the night.
Date Submitted: May 4, 2021 11:31 AM by Glen Gawarkiewicz