Cruise Planning Questionnaire


Ship: ATLANTIS
    Vehicle(s) required:
ALVIN
    Name of ship for ROV ops:
    Ch Sci:
Deborah S. Kelley
    Affiliation:
University of Washington
    Address:
School of Oceanography
Box 357940
Seatle WA 98195
    Phone:
206-543-9279
    Email:
kelley@ocean.washington.edu
    POC / contact info:
Departure port & date:Astoria August 25th, 2006
    Distance to first station:
    Number of stations:
    Distance between stations:
    Total days on station:
16
Arrival port & date:Astoria September 11, 2006
Op area:Endeavour Segment
Lat/Lon:4757N 12906W
Depth range:2200 m
    Will the vessel be operating within 200 NM of a foreign country?
    Which country?
    Are visas or special travel documents required?

Funding agency:
      NSF
Specify:

Grant or contract number: OCE0426109

    Science objectives/activities planned:
The main objective of the Kelley portion of the cruise is to recover a series of microbial incubators. culturing experiments, and osmo samplers from the Endeavour Segment of the Juan de Fuca Ridge. These instruments are in the Main Endeavour and Mothra Hydrothermal Fields. They consist of a gatling gun-like barrel assembly ~ 18 inches in length, 3 inches in diameter that is inserted into the walls of active chimneys. The barrel assembly is connected to a data logger "pig" by an ~ 18 foot long cable. There are two osmo samplers secured onto the pig as well. These instruments were deloyed with Jason 2 last year. I will send along an image. Pat has recovered these sensor suites before. In addition to these instruments there are "poorman" incubators that include a hobo, a short titanium sheath with a handle and 1-2 osmosamplers. Some of these instruments will be redeployed and recovered at the end of the cruise to continue our time series investigations into changes in microbial communities. At each site we will need to take major and gas tight samples immediately subsequent to recovery of the instruments and conduct video/digital still mosaicking prior to recovery. We will also use a portion of one dive to map in detail with the Imagenex the Main Endeavour Field. To maintain our time series sampling of the fields we will have at least one dive in the High Rise, Salty Dawg and Sasquatch Hydrothermal Fields for water sampling. These samples will also be used for culturing work. In non sensitive fields with respect to the MPA, we will conduct limited sulfide, basalt and biological sampling. The sulfide and basalt sampling is required to fill in holes in on-going age dating and geochemical studies of this ISS site by Kelley, Hannington, and Gill. In addition, these samples will be used for geomicrobiological studies funded on this grant for comparison to the microbial incubator results. We will place at least one hobo in each of the five vent fields, with co-registered water sampling. A paroscientific pressure sensor will be recovered from the Main Endeavour Field just south of Groto, and a materials test will be recovered near the southeast flank of Hulk on a small structure called Gemlin.

There will be nightly CTD operations to 1) explore for suspected hydrothermal fields to the north and south of Sasquatch and Mothra fields, respectively, and 2) to continue a time-series heat flow study by McDuff & Thomson, which shows very significant changes in water column properties above the fields. We anticipate 21 vertical stations to be reoccupied (~ 3 nights of work)- this is a high priority for their work. We have a dedicated, experienced student to lead this who was out with Atlantis-ABE during the Thompson-McDuff program and ran the CTD portion of their efforts.

There are homer beacons in Mothra and Main Endeavour that will help with navigation. Kelley-Lilley will provide their locations and numbers. But, the homer head needs installed on Alvin if it is not already on.

If the earhquakes at Middle-West valley turn out to be significant, we may do 1 run up there --will talk with Dziak about this prior to the cruise. I have asked for a clearance box large enough in our original request to cover this if needed.

In addition to this 10-dive program, 6 dives are under the direction of Marv Lilley as part of an ASU-UW instrument development program. Marv has a series of temperature-resistivity-hydrogen probes in Mothra and the Main Endeavour Field that will be recovered. This work will require the ICL to be on the sub. Major and gas-tight fluid samples will need to be taken immediately after recovery of the instruments. In addition, to these sensors, there are 3-4 new sensors that will be tested out. I have an e-mail to the Atlantis to Marv to get an inventory of what these instruments are.

The Lilley-Kelley programs can be integrated such that tasks from each program may be accomplished on the same dive where possible.

WHOI shipboard scientific instrumentation desired:
    12 kHz transducer
    3.5 kHz transducers
Fume hood
    Relay transponder for wire use
XBT systemRefrigerator
Deionized water system
CTD/rosette system-70 deg freezer
Walk-in cooler (AT only)
10-liter Niskin bottles
Pinger for wire use

Is nighttime work anticipated on this cruise? Yes

    Critical MET sensors:
    Critical CTD sensors:
Standard sensors--e.g. transmissometer, oxygen, ph, eH, temperature, conductivity, altitude

Do you need Seabeam? (AT and KN only) Yes

Long baseline (LBL) transponder navigation? Yes No. of xpndrs/nets: 5 --with our new ABE maps and doppler it may be that we do not need 2 nets. Will talk this over in the meeting.
Ultra-short baseline (USBL) navigation? Yes
Doppler/GPS navigation? Yes

Will you be using portable science vans? No How many:


Science Van #1
Science Van #2
Science Van #3
    Type/size
    Location
    Water
    Power

Anticipated standard oceanographic cable use:

Instruments(s)
Instrument Weight(s)
Maximum Depth
    Conducting hydro
CTD
    Steel hydro
    Steel trawl
    .681" fiber optic
    Do you require slip rings?
Number of conductors:
    Do you need non-standard wire?
If so, what type?
    Do you need a traction winch?
Will you be bringing any equipment (winches, blocks, etc.) that lowers equipment over the side? No

If yes, please provide details:
Will there be special requirements for:

    Electrical power
    Equipment handling
No
    Inter/intraship communications
Yes
    Science stowage
Yes

If yes to any of the above, please identify: I believe that the R/V Thompson will be out at Endeavour and overlap with us a couple days.

Will any of the following items be used on board?

    Explosive devices
No
    Portable air compressors
No
    Flammable gases
Yes
    Radioisotopes
    Isotope van
Yes

Will hazardous material be used aboard, or deployed by an ROV? Yes

What measures or plans have been made a) in the event of a spill, and b) for the removal and/or disposal of these materials at the completion of the cruise?
Each PI will have the required spill kit. We will offload the materials in Astoria and bring them back to Seattle where they will be disposed of appropriately.