AT26-30

Ship

R/V Atlantis

Vehicles

Cruise Party

Uwe Send: Chief Scientist, Principal Investigator
USA
+1 858 822 6710
usend@ucsd.edu

Departure: Punta Arenas, Chile on Mar 8, 2015

Arrival: Montevideo, Uruguay on Mar 26, 2015

Mobilization Date: Mar 7, 2015

Demobilization Date: Mar 27, 2015

Supporting documentation:

»3206-00007.doc

Operations Area: Argentine Basin

Lat/Lon: 42° 0.0′ S / 42° 0.0′ W

Depth Range: 4500 / 5200

Will the vessel be operating within 200 NM of a foreign country? Transit through Chilean waters, CTD casts in Argentina and UK waters (by the Falklands)
Are visas or special travel documents required? no

Science objectives

To carry out the first deployment of the NSF Ocean Observatories Initiative (OOI) 42°S, 42°W Array, installing 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) Survey the bathymetry of the site to establish the positions for the four moorings of the first deployment and also the second set of four adjacent sites for the second deployment one year later; 2) Deploy the four moorings; 3) Deploy gliders in support of horizontal and vertical sampling in and around the array; and 4) 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: Teleconference

Stations:

  Argentine Basin
  Distance: 1335
  Days: 10
  Latitude: 42° N
  Longitude: 42° E

Funding Agency: NSF ##OOI

- added NSF ##OOI on Nov 25, 2014 2:27 PM by Gabriela Chavez

R/V Atlantis

Shipboard Equipment

Bathymetry System 12 kHz
Sippican XBT System (Mark 21)
Bathymetry System 3.5 kHz
ADCP 75 kHz
Deionized Water System
12 kHz Pinger for Wire Use
Navigation - Heading
Multibeam
Fume Hood
Navigation - Position

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

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

Sample Storage

Freezer -70°C 3.2 cu. ft. ea.


Storage Notes:

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
Mooring / TSE winch
Other Portable Winch
Trawl Winch with 9/16th trawl wire

Winch Notes: will bring Lebus winch, will use ship's capstan
will attach instruments to rosette for calibration, also acoustic releases to test in water

Wire use and application

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


Wire Notes: as above, testing and calibrating in conjunction with CTD
trawl winch/wire to launch anchors

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: 20' Lab Van		Location:
Water:		Power:
Science Van 2
Type/size: Work Van		Location: 01
Water:		Power:yes, 110 V
Science Van 3
Type/size: Rag Top Container for glass balls		Location: 01
Water: no		Power:no

Specialized Deck Equipment

Mooring Deployment/Recovery Equipment Required: yes	Type: Lebus winch, air tuggers
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? no

Special Requirements

Elecrical Power: yes	Identify: 100 amp 380-440 Lebus, 60 amp 220 TSE, 30 amp 110 deck carts
Equipment Handling: yes	Identify: tip plate, anchor tracks, blocks - we will bring
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:
Lithium batteries contained in equipment -some spares in corresponding storage boxes
compressed nitrogen in cylinders
small amounts solvents, cleaners, paints
gasoline
reagents for oxygen sampling (NaI/NaOH, MnCl2) to be kept in hazmat locker until needed after some of the CTD casts
HgCl2 for Carbon sampling to be kept in hazmat locker until needed after some of the CTD casts

Radioactive Material

Radioiosotopes: no

Additional Information

Is night time work anticipated on this cruise? yes

Specialized tech support (Seabeam, coring, other):  We will need to do mooring work whenever weather/sea state allow, aiming for daylight operations but may have to work at night. Glider and CTD operations at night.

Other required equipment and special needs: 
Date Submitted: Nov 25, 2014 3:18 PM by Gabriela Chavez