Atlantic Intermediate

Ship

R/V Knorr

Vehicles

Cruise Party

William Curry: Principal Investigator
null
+1 508 289 2591
wcurry@whoi.edu

Delia Oppo: Chief Scientist, Principal Investigator
null
+1 508 289 2681
doppo@whoi.edu

Departure: Bridgetown, Barbados on Jan 24, 2010

Arrival: Bridgetown, Barbados on Feb 14, 2010

Supporting documentation:

Operations Area: Demarara Rise

Lat/Lon: 8° 0.0′ N / 53° 0.0′ W

Depth Range: 400 / 4000

Will the vessel be operating within 200 NM of a foreign country? Suriname, French Guiana, Barbados
Are visas or special travel documents required? no

Science objectives

Field and Laboratory Program to Evaluate Atlantic Intermediate Circulation During the Past 25,000 Years. In this project, the PIs will study how changes in deep ocean circulation influenced the distribution of heat, nutrients, and carbon within the ocean, and their link to earth's climate and levels of CO2 in the atmosphere. The research will test the hypothesis that the northward flow of Antarctic Intermediate Water (AAIW) in the Atlantic Ocean is linked to its role as a supplier of North Atlantic Deep Water (NADW), which derives from sinking of surface waters at high northern latitudes and then flows southward in the Atlantic. The PIs predict that when NADW fills more of the deep Atlantic, AAIW penetrates farther northward to supply NADW.

Science Activities

Long Core operations at 25 stations, multibeam, water sampling

Pre-cruise planning meeting: Visit WHOI

Week Nov 30-Dec 4

Stations:

Funding Agency: NSF #0750880

- added NSF #0750880 on Nov 20, 2009 11:31 AM by Elizabeth A. Caporelli

R/V Knorr

Shipboard Equipment

12 kHz Pinger for Wire Use
Bathymetry System 12 kHz
Bathymetry System 3.5 kHz
Deionized Water System
Fume Hood
Multibeam
Sippican XBT System (Mark 21)

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 ECO-AFL fluorometer

Critical CTD Sensors: 

Hydrographic Analysis Equipment

Salinometer

MET Sensors

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

Sediment Sampling

Gravity corers
Jumbo Long Corer
Multi-core

Sample Storage

Refrigerator 8.6 cu. ft.

Navigation

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

Will you be using Doppler/GPS navigation? no

Winches

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

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

Portable Vans

Chemical Storage Van
Cold Storage Van

Other Science Vans:

Specialized Deck Equipment

Mooring Deployment/Recovery Equipment Required: no	Type:
Cruise Specific Science Winch Required: yes	Type: Long core winch
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: 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:
Core logger, authorization has been approved

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: 
Date Submitted: Nov 20, 2009 11:40 AM by Elizabeth A. Caporelli