Santa Barbara Cruise

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Santa Barbara Cruise Information - 2008

Cruise Update

 Saturday
 Boat left dock at 0730 after checking out gravity core rigging.
 Two Gravity Cores broke (too many holes in core? Entry speed too great?)
 Overpenetrated multi core, but processed for pore waters and SRR. Also processed for N2 via whole core squeezer.

 Sunday
 Boat left dock 0700.
 Multicore either overpenetrated or didn't fire. Collected overpenetrated cores for pw processing.

 Dates:

 Friday August 8th - Monday August 11th
 Boat goes out in the water on Sat. and Sun.

 Work Plan

  • Thursday-Load ship with corers, gear etc. Load burban 9:00a -- leave for dock at 9:30a
  •  Friday-Drive up to Carpinteria with gear
  •  Will, Tim--PickUp--leave around noon
  •  Lisa, Laurie, Marlo, Sean--Suburban--leave around noon
  •  Andrew--his car
  •  Troy--his car
  •  Masha--her car
  •  Saturday (Cruise=Masha, Troy, Lisa, Laurie, Marlo, Sean, Andrew)
  •  Saturday (Setup=Will, Tim); Olivia and Ben arrive Sat afternoon
  •  Saturday Eve (Core processing=all); Olivia and Ben depart for Pasadena, Andrew departs for LA
  •  Sunday (Cruise=Masha, Lisa, Marlo, Tim, Laurie, Sean); Olivia and Ben arrive Sun afternoon

 Seminar--Aug. 6--WB will give a talk about the cruise science and logistics. Wed. 1:00p ZHS 200

People: (please add your cell phone number)

  •  Will B. 310-804-8981
  •  Masha P. 323-630-4968
  •  Lisa C. 213-422-3802
  •  Tim R. 323-698-6898
  •  Vicky P. (?)
  •  Frank Corsetti
  •  Sean
  •  Troy 805-402-7191
  •  Andrew W. 310-507-5796
  •  Laurie Chong
  •  Marlo G. 918-606-4222
  •  Caltech=Olivia (503-939-1035) and Ben (612-799-9512)
  •  Ships Cell 310-560-9930
  •  Captain Dennis Cell 310-658-7891

Cruise Plan: Santa Barbara Basin August 8th – 11th

Location: SBB (34° 13.7’N, 119° 59.5’W)—Bottom Depth 585 ± 4 m (1919 feet)
Scientists: Masha Prokopenko (Chief Scientist), Troy Gunderson, Lisa Collins, Marlo Gawey, Andrew Whitesides, Laurie Chong, Tim Riedel, Sean Loyd [Will Berelson--PI]

Day 1 – Objectives in proposed order of operations: one hydrocast, one gravity core, one multicore

1) Hydrocast/CTD
 Sample at 12 depth intervals; after hydrocast retrieval, sample rosette bottles for a) dissolved gases, b) nutrients and nitrate isotopes – 60 ml filtered, c) ammonium – 60 ml, filtered and acidified with 50 ul of 12N HCl, d) collect 2 L of surface water, filter-sterilize it and keep on ice; e) collect 4 L from the deepest interval and store on ice.
 Immediately after the retrieval the rosette it will be moved to the side of the deck, so that preparation for the gravity coring operation can begin. Masha, Troy, Laurie, Marlo will start sampling; Lisa, Andew and Sean start preparation to the gravity core operation. Masha joins them after she is done with taking gas samples, and Troy joins them after he gets Laurie and Marlo started on nutrients/ammonium collection.

2) Gravity coring operation
 The objective is to retrieve 2-2.5 m core. Core should go down at 60-80 m/min, then within 100 ft from the bottom, slow down and let corer attain vertical. Enter the sediments at 60-80 m/min. After the core is out of the water, we will need to move core to secure location and examine the amount of sediment sampled. If it is acceptable, the scientific party is divided into groups:
 Group one: Lisa, Marlo, Andrew and Laurie start rigging multicore; Troy, Masha, Andrew and Sean drain the overlying water, make a decision whether to cut off a portion of an empty part of the barrel, put styrofoam spacers in and place the barrel with mud on ice. Then they join the rest of multicore team.

3) Multicore operation
 One perforated tube and 3 non-perforated tubes. Start with the multicore going down without skids and with some weights taken off. Use neutrally buoyant (Blue) line between corer and trawl wire. Check blue line for nicks or bad cuts. Core speed down should not exceed 40 m/min. Corer should stop 25 m off bottom to let wire angle become vertical. WAIT FOR CALM SWELL. Enter sediments at 40 m/min and continue to pay-out 10-20 sec after corer touches bottom. Stop, come up at 40 m/min max. If it comes over-penetrated, add skids. If it comes empty, add weights. Keep adjusting weights until good sediment—water interface is obtained and the total length of mud is at least 25 cm. After acceptable cores are retrieved, the coreliners with mud are removed from the frame. One is plugged with WCS bottom and top; one is plugged with an extruder bottom and black rubber stopper on top; the remaining unperforated and the perforated coreliners are plugged with black rubber stoppers. All plugs are secured with electrical tape. All cores are put into a large garbage bin with ice.

Day 2 – Objectives: two gravity cores and one multicore.

The procedures are the same as on day 1. The only difference is that we intend to collect 2 gravity cores and will apply different types of end-caps on the multi-cores.

 NOTE: Closed-toe shoes on ship. Warm clothes for Cold-van work.

Lodging:
Motel 6 Carpinteria South (805) 684-8602
 5550 Carpinteria Avenue
US 101 at Bailard Avenue/Casitas Pass Road
Carpinteria, CA, 93013

  •  4 standard queen beds reserved, non-smoking
    •  Check-in Fri Aug. 8th (afternoon), Check-out Monday Aug 11th (noon)
    •  Confirmation Made with Will's Visa BOA card
      •  1353M55996
      •  1353M55997
      •  1353M55998
      •  1353M55999
  •  $99.99 Fri and Sat, $63.99 (290.37/rm for the weekend-including tax)

Reefer:

 Ryder

 Oxnard Ryder 805-483-8271

  •  701 Richmond Avenu
      Oxnard ,CA 93030
  •  Sal -- Cell: 805-469-2176

 Reserved Truck under "Tim Riedel at USC"

  •  $1000 Credit Card Deposit on pickup
  •  Pickup 4:45p on Friday 8/8
  •  Return Monday

Truck Option:
24' Truck, $124/day, $0.16/mile, $1/reefer hour
372 + 16 + 72 = $460