'OOI Irminger Sea 2015'

Ship

R/V Atlantis

Vehicles

Cruise Party

Robert Weller: Chief Scientist, Principal Investigator
Woods Hole Oceanographic Institution Clark 204A, MS#29 Woods Hole, Ma. USA 02543
+1 508 289 2508
rweller@whoi.edu

Departure: Woods Hole on Aug 5, 2015

Arrival: Nuuk, Greeland on Sep 1, 2015

Mobilization Date: Aug 1, 2014

Demobilization Date: Sep 2, 2014

Supporting documentation:

»irminger_blowup_2.eps
»irminger_2015_redtrack.tiff

Operations Area: Southeast of Greenland

Lat/Lon: 59° 52.0′ N / 39° 30.0′ W

Depth Range: 2600 m / 2800 m

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

Science objectives

To carry out the recovery and redeployment of the NSF Ocean Observatories Initiative (OOI) Irminger Sea Array, servicing four moorings and up to five gliders.  The platforms will carry multidisciplinary instrumentation and provide the capability for real time communication of data and control of sampling.  A surface mooring will instrument the sea surface and upper ocean, capturing the surface forcing and upper ocean variability.  A profiling mooring will measure through the water column.  Two additional taut subsurface moorings and the gliders will complete the capabilities to obtain vertical profiles and sample the mesocale (10s to 100 km) variability at the site.

Science Activities

The following activities are planned:  1) Validate the bathymetry of the site to check the planned positions for the four moorings of the second deployment;  2)  Deploy the four new moorings; 3)  Recover the four moorings deployed in 2014; 4) Deploy up to three gliders in support of horizontal and vertical sampling in and around the array; 5) Recover the glider deployed in 2014; and 6) Carry out shipboard sampling in support of calibration and validation of the deployed sensors on the moorings and gliders and to add to knowledge of the site.

Pre-cruise planning meeting: Visit WHOI

Stations:

  Station 1
  Distance: 1811 nm
  Days: 18
  Latitude: 59° 58.8’ N
  Longitude: 39° 34.8’ E

  Station 2
  Distance: 613 nm
  Days: 11
  Latitude: 59° 58.8’ N
  Longitude: 39° 34.8’ E

Funding Agency: NSF #OCE-09579388

- added NSF #OCE-09579388 on May 27, 2015 8:37 PM by
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R/V Atlantis

Shipboard Equipment

12 kHz Pinger for Wire Use
ADCP 75 kHz
Bathymetry System 12 kHz
Deionized Water System
Fume Hood
Multibeam
Navigation - Heading
Navigation - Position
Science Underway Seawater System
Sippican XBT System (Mark 21)

Shipboard Communication

Basic Internet access via HiSeasNet

CTD/Water Sampling

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

Critical CTD Sensors: 

Hydrographic Analysis Equipment

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

MET Sensors

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

Sample Storage

Freezer -70°C 3.2 cu. ft. ea.


Storage Notes: Will need freezer space during next cruise (C.Lee).

Navigation

Will you be using Long Base Line (LBL) navigation? no

Will you be using Ultra-short baseline (USBL) navigation for other than Alvin operations? no

Navigation

GPS

Navigation Notes:

Winches

CTD Winch with .322" Electro-mechanical wire

Winch Notes: Lebus and TSE from WHOI mooring group

Wire use and application

CTD Winch with .322" Electro-mechanical wire


Wire Notes:

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

Portable Vans

Chemical Storage Van

Other Science Vans:

Other Science Vans:

Science Van 1
Type/size: work van		Location: 01
Water:		Power:
Science Van 2
Type/size: Work van		Location: O1
Water:		Power:yes, 110V
Science Van 3
Type/size: 20' lab van		Location:
Water:		Power:

Specialized Deck Equipment

Mooring Deployment/Recovery Equipment Required: yes	Type: Lebus winch, air tuggers, cart
Cruise Specific Science Winch Required: no	Type:
Nets Required: no	Type:

Over the Side Equipment

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

Details: mooring deployment/recovery gear

Special Requirements

Elecrical Power: yes	Identify: for Lebus winch
Equipment Handling: no	Identify:
Inter/intraship Communications: no	Identify:
Science Stowage: yes	Identify: ship gear back to WHOI
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):  as needed to accomplish moorign and glider work, also to get CTD work done

Other required equipment and special needs:  plastic grating plated over on fantail, sharp corners on A-frame supports covered - lessons learned in previous cruise. 

Will off load containers and gear in Nuuk and store on dock to make room for Craig Lee crusie.  Reload in Sept 25 for transit back to WHOI.
Date Submitted: Jun 23, 2015 8:17 AM