Irminger Sea 9 (Summer 2022)

Ship

RV Neil Armstrong

Vehicles

Cruise Party

Albert Plueddemann: Principal Investigator
Woods Hole Oceanographic Institution Clark 202A, MS#29 Woods Hole, Ma. USA 02543
+1 508 289 2789
aplueddemann@whoi.edu

Sheri White: Chief Scientist
Woods Hole Oceanographic Institution LOSOS 212, MS#57 Woods Hole, Ma. USA 02543
+1 508 289 3740
swhite@whoi.edu

Departure: Woods Hole, MA on Jun 15, 2022

Arrival: Reykjavik, Iceland on Jul 12, 2022

Mobilization Date: Jun 12, 2022

Demobilization Date: Jul 13, 2022

Supporting documentation:

»Irminger-9_Chemical_MSDS_Packet.pdf
»Irminger-9_Battery_MSDS_Packet.pdf
»Irminger-9_HazMat_List_2022-03-08.pdf
»Irminger-9_Waypoint_List_2022-03-07.pdf

Operations Area: South East of the Tip of Greenland

Lat/Lon: 60° 0.0′ N / 39° 0.0′ W

Depth Range: 2500 / 3000

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

Science objectives

This is the ninth cruise to the Irminger Sea Global Array of the National Science Foundation’s Ocean Observatories Initiative (OOI). The Irminger Sea Global Array includes four moorings and a combination of Open Ocean and Global Profiling Gliders deployed off the southeast tip of Greenland, close to 39°W, 60°N.  The location is one characterized by the strong air-sea interaction and wintertime water mass formation that supports the global thermohaline (a.k.a. meridional overturning circulation – MOC), where in recent years a freshening of the water column has been observed. The data from the array contributes to an improved understanding of the impact of both natural and climate variability in the region, as well as how these signals effect changes in ocean physics, chemistry, and biology and vice-versa. 

The combination of the moored array and the gliders enables investigation into the role of processes at mesoscale and sub-mesoscale horizontal length scales through observations that sample the full water column, from the sea floor to the sea surface. The Surface Mooring provides unique time-history of observations of surface meteorology and air-sea fluxes.

 For further information, see http://www.oceanobservatories.org.

Science Activities

Thie Irminger Sea 9 deployment cruise has the following OOI objectives: deployment of new Surface Mooring, Hybrid Profiler Mooring, and two Flanking Moorings, and deployment of 3 new Irminger Sea gliders; recovery of the Surface Mooring, Profiler Mooring, and Flanking Moorings deployed in August 2021; CTD casts with temperature, salinity and oxygen water sampling both for instrument validation and to further characterize the region of the mooring sites; and surveys using shipboard sensors (ADCP, EK-80, thermosalinograph, multibeam) in the Irminger moored array region.

The OSNAP objectives are to recover the M1, M2, M3, and M4 moorings deployed in Summer 2020; deploy new moorings in their place; and CTD casts with temperature, salinity and oxygen water sampling for instrument calibration and validation.

Additional ancillary activities include: deployment of 2 ARGOS and 2 RAFOS floats, marine mammal observations (potentially with sonobuoy deployments in international waters).

Pre-cruise planning meeting: Teleconference/Visit WHOI

Stations:

  Station 1
  Distance: 550
  Days: 13
  Latitude:
  Longitude:

Funding Agency: NSF #OOI 2.0

- added NSF #OOI 2.0 on Mar 7, 2022 3:36 PM by Sheri N. White

R/V Armstrong

Shipboard Equipment

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


Shipboard Equipment Notes: We will connect our deck box to the ship's 12 kHz transducer for acoustic release firing.

For the Seawater Underway System, we'd like it cleaned out prior to our cruise; and would like PCO2 data.

Shipboard Communication

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


Shipboard Communication Notes: We need regular access data from shore for our Surface Mooring testing for both the deployed and to-be-deployed mooring.

CTD/Water Sampling

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

Critical CTD Sensors:  Spare CTD, pylon, and rosette

Hydrographic Analysis Equipment

Salinometer
Salt Bottles (2 cases of 125 ml provided)
Dissolved Oxygen Titration System (Brinkmann Titrator)
Oxygen Sample Bottles (available in 150 ml sizes)

MET Sensors

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

Sample Storage

Freezer -70°C 3.2 cu. ft. ea.
Scientific Walk-in Refrigerator
Freezer -70°C 25 cu. ft.
Scientific Walk-in Freezer


Storage Notes:

Freezer (@ minus 10-15°C) for chlorophyll and nutrient samples.
Refrigerator normally close to room temp, but drop to 4°C for post-recovery calibration of nutrient sensors.
We will leave a small cooler with samples in the freezer until the ship returns to WHOI.

Navigation

GPS

Navigation Notes: Serial GPS feed for Chief Sci laptop navigation application.

Winches

Other Portable Winch
UNOLS Winch Pool
Trawl Winch with 9/16th trawl wire

Winch Notes: Science party has reserved TSE split drum winch from winch pool. Science party will supply Lebus heavy-lift winch.

Wire use and application

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


Wire Notes: Trawl winch is used for mooring deployments, and for possible dragging operations.

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: Ragtop Ball Van, 20'		Location: Port side, on Storage van
Water: no		Power:no
Science Van 2
Type/size: Storage van, 20'		Location: Port side, main deck
Water: no		Power:no
Science Van 3
Type/size: Ragtop Ball Van, 20'		Location: Port side, on Rigging van
Water: no		Power:no
Science Van 4
Type/size: Rigging van, 20'		Location: Port side, main deck
Water: no		Power:yes

Over the Side Equipment

Will you be bringing any equipment (winches, blocks, etc.) that lowers instruments over the side? yes

Details: TSE and Lebus winches, for mooring deployment and recovery

Special Requirements

Elecrical Power: yes	Identify: TSE, rigging van: 440V 3 ph, Lebus: 480V 100A
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: yes SCUBA Diving Operations: no

Hazardous Material

Will hazardous material be utilized? yes

Describe deployment method and quantity:
HAZMAT info will be attached as supporting documents.  Lithium Batteries, Q size Nitrogen Gas cylinder and Water Sampling Chemicals.

Radioactive Material

Radioiosotopes: no

Additional Information

Is night time work anticipated on this cruise? yes

Specialized tech support (Seabeam, coring, other):  SSSG will be able to handle most activities. Occasional need for Bos'n and deck help (crane) for short periods, e.g. a glider deployment or recovery.

Other required equipment and special needs: 
Date Submitted: Mar 9, 2022 10:43 AM by Dee Emrich