My Cruise

Ship

R/V Knorr

Vehicles

Cruise Party

Charles Langmuir: Chief Scientist, Principal Investigator
Harvard University 20 Oxford Street Cambridge , MA USA 02138
+1 617 384 9948

Departure: Bermuda on May 9, 2012

Arrival: Punta Delgada, Azores on Jun 10, 2012

Mobilization Date: May 8, 2012

Demobilization Date: Jun 11, 2012

Supporting documentation:

»Langmuir_station_information.docx

Operations Area: Mid-Atlantic ridge between the Kane fracture zone and the Azores

Lat/Lon: 29° 0.0′ N / 44° 0.0′ W

Depth Range: 1500 / 4500

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

Science objectives

Our aim is to sample diverse segments of the mid-Atlantic ridge, largely between the Kane and Atlantis fracture zones, exploring the differences in the type and chemical compositions of rock collected from symmetirc segments as compared so assymmetric segments, where detachment faulting is taking place.

Science Activities

The activities will be largely rock sampling, both with dredging and "rock coring".  The rock coring takes place using the hydrowinch.  Dredging with the trawl winch.  We also want to take some gravity cores in the rift valley.THere will also be some multi-beam mapping.  This will always be important for sample location and documentation, but there will also be some short surveys where previous data are lacking.  Three days of survey time were proposed in the proposal.

Pre-cruise planning meeting: Visit WHOI

Boston and WHOI are close. Face to face is always better. But we can teleconference if logistics require.

Stations:

Funding Agency: NSF #OCE-1061264.

- added NSF #OCE-1061264. on Mar 5, 2012 7:18 PM by
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R/V Knorr

Shipboard Equipment

Bathymetry System 12 kHz
Bathymetry System 3.5 kHz
12 kHz Pinger for Wire Use
Multibeam
Fume Hood

Shipboard Communication

Is there a need to transfer data to shore on a regular basis?
Is there a need to receive data from shore on a regular basis?
Is there an expectation to use Skype or any other real-time video conference program?
Basic Internet access via HiSeasNet

Critical CTD Sensors: we need access to 18 megohm water

Sediment Sampling

Rock dredges
Gravity corers


Storage Notes:

Navigation

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

Will you be using Doppler/GPS navigation? no

Navigation

GPS

Navigation Notes:

Winches

Trawl Winch with 9/16th trawl wire
Hydro Winch with .25" hydro wire

Winch Notes: There will be very heavy winch use on this cruise. Having sufficient wire and winches in good operating condition is essential.

Wire use and application

Hydro Winch with .25" hydro wire
Trawl Winch with 9/16th trawl wire


Wire Notes: wire speed is a critical factor for the cruise objectives. Hydrowinch speeds of 110m/min are optimal for rock core deployments.

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 feet		Location:
Water:		Power:

Specialized Deck Equipment

Mooring Deployment/Recovery Equipment Required: no	Type:
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: we need clearn power for the direct current plasma spectrometer
Equipment Handling: no	Identify:
Inter/intraship Communications: yes	Identify: Pi Javier Escartin will be in France. We need to be able to send multibeam data and skype.
Science Stowage: yes	Identify: We will need to store 60-80 dredges
Water: yes	Identify: Clean DI water essential for chemical work

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): We will need to be able to process multibeam data rapidly during the cruise. There will also be 24 hour per day sampling operations, and a rather inexperienced science party, so deck tech support will be crucial.

Other required equipment and special needs: 
Date Submitted: Mar 5, 2012 7:22 PM