The Next 'keigwin July cruise on KNORR'

Ship

R/V Knorr

Vehicles

Cruise Party

Lloyd Keigwin: Chief Scientist, Principal Investigator
Woods Hole Oceanographic Institution McLean 207A, MS#08 Woods Hole, Ma. USA 02543
+1 508 289 2784
lkeigwin@whoi.edu

Departure: Woods Hole on Aug 6, 2010

Arrival: Woods Hole on Aug 16, 2010

Supporting documentation:

Operations Area: New England waters

Lat/Lon: 39° 0.0′ N / 65° 30.0′ W

Depth Range: 250 m / 4 km

Will the vessel be operating within 200 NM of a foreign country? We have clearance from Canada, but I doubt we'll get that far east.
Are visas or special travel documents required? no

Science objectives

This cruise is privately funded by the same foundation that funded WHOI to get started on developing the new long coring system.  The idea is to promote interdisciplinary studies by collecting sediment cores from locations that are well instrumented for modern observations.  WHOI's line W array, south of the Cape and Islands is one such region.  There are multiple moorings measuring physical and chemical properties of the ocean, and there are sediment traps that allow us to calculate fluxes of sediment to the seafloor.  Another such location is in Jordan Basin, northeast Gulf of Maine, where NOAA has an instrumented buoy and where there is a long history of sediment trapping and plankton towing.  Remarkably, there are no studies of the paleoclimate using sediment cores from these regions.  In deep water (south of WH) surveys will be conducted by 3.5 kHz sonar, and in the Gulf of Maine Liviu Giosan will survey with his towed chirp sonar.  Our Jordan Basin site is well-known, but south of WH the continental margin is dominated by down-slope processes and finding good core sites will be a challenge.  We may work farther to the east in the NE Seamount region, where seamounts may affect the prevailing deep flow and cause constructional sedimentary deposits.  Each site will be sampled with a multicorer, a gravity corer, and a large diameter piston corer.  In addition, we will deploy a sediment trap at Jordan Basin.  

Science Activities

multicoring, gravity coring, long piston coring, hydrocasting, plankton towing, seafloor mapping, sediment trapping

Pre-cruise planning meeting: Visit WHOI

Stations:

  Station 1
  Distance: null
  Days: null
  Latitude: 43° 28.982’ N
  Longitude: 67° 52.956’ W

Funding Agency: NSF #123456

- added NSF #123456 on Jun 28, 2010 3:35 PM by Lloyd Keigwin

R/V Knorr

Shipboard Equipment

Bathymetry System 12 kHz
Sippican XBT System (Mark 21)
Bathymetry System 3.5 kHz
ADCP 75 kHz
Deionized Water System
Science Underway Seawater System
Multibeam

CTD/Water Sampling

911+ Rosette 24-position, 10-liter bottle Rosette with dual T/C sensors

Critical CTD Sensors: 

Sediment Sampling

Jumbo Long Corer
Gravity corers
Multi-core

Sample Storage

Chest Freezer (Household type) 0°F


Storage Notes: need reefer van for cores

Navigation

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

Will you be using Doppler/GPS navigation? yes

Winches

CTD Winch with .322" Electro-mechanical wire
Hydro Winch with .25" hydro wire

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

Portable Vans

Cold Storage Van

Other Science Vans:

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: 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:
null

Radioactive Material

Radioiosotopes: no

Additional Information

Is night time work anticipated on this cruise? yes

Specialized tech support (Seabeam, coring, other): seabeam, coring

Other required equipment and special needs: 
Date Submitted: Jun 28, 2010 3:35 PM by Lloyd Keigwin