W9407A/Devol/Benthic Carbon Oxidation

General Information

Filing Date: 15 June, 1994
Cruise Number: W9407A
Title: Benthic Carbon Oxidation
Contract/Grant Number: OCE91-16275
Principal Investigator(s): Dr. Allan Devol, UW

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Purpose

The purpose of the cruise is to measure the exchange of solutes between the sediments and overlying water on the Washington State shelf and slope. We are especially interested in exchanges of nitrogen because these sediments are typical of many marine sediments and we wish to evaluate the importance of marine sediments in the global nitrogen cycle.

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Itinerary

Cruise track will be from Newport to 47 12N, 128W. All work will be done along and east-west section at about 47N. In the middle of the cruise we will make a mid-cruise port call at either Aberdeen or Astoria to change personnel. After concluding the work we will off load in Seattle and the Wecoma will then transit to Newport. See attached figure in original.

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Radioactive Use

YES. An isotope plan has been submitted separately.

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Sampling Plan

We will load the Wecoma in Newport on the 19th of July and we plan to depart on 20 July (probably in the middle of the day). It should take about a day to get to the first station (46 12N, 128W) where we will being box coring. We will then move east to a location where the water depth is about 300m and deploy our benthic tripod, which will remain on the bottom for about 24 h during which time we will take box cores and do a CTD/hydrocast. After recovery of the tripod we need about 24 h to turn it around. During this period we will steam to deeper water to take box core samples. We will continue deploying the tripod and taking cores at different locations along the section outlined on the accompanying chart.

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Equipment Required

Forms have been sent to Brian Wendler.

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Scientific Personnel To Be On Board

• Scientist in Charge: Allan H. Devol Other Senior Scientist(s): John Hedges(1), Richard Keil
• Party Chief: Lary Dean Lambourn
• Technicians: Lary Dean Lambourn, Barbara Paul, Crystal Tsimson, Elizabeth Tsmakis(2), Michael Kostal(1), Jean Kwiecinske(1), Stephanie Sipla(2)
  Note: 1 = First half only, 2 = second half only.

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OSU Marine Technicians assigned to Cruise

• Brian Wendler
• Robert Bower

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User Supplied Equipment

VANS/Containers: NONE

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Other Bulky Heavy Items

Tripod, boxcore, tripod ballast
Location: All on aft working deck
Estimated Weight: Tripod: 1,000 lb, Box Core: 1,000 lb, Ballast: 4-55 gal drums @ 2,000 lbs each.

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Billing Information

NAME:

Oceanography Purchasing School of Oceanography, WB-10 University of Washington Seattle, WA, 98195

ACCOUNT NUMBER: 61-0893

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Cellular/Inmarsat Phone Access

Only for emergency