Cruise Planning Questionnaire


Ship: ATLANTIS
    Vehicle(s) required:
ALVIN
    Name of ship for ROV ops:
    Ch Sci:
Orphan, Victoria
    Affiliation:
Caltech
    Address:
1200 E. California Blvd.
Mail Code 100-23
Pasadena,CA 91125
    Phone:
626 395-1786
    Email:
vorphan@gps.caltech.edu
    POC / contact info:
Departure port & date:Astoria, Sept. 26 2006
    Distance to first station:
    Number of stations:
2
    Distance between stations:
    Total days on station:
4 + 1
Arrival port & date:San Diego, October 13th 2006
Op area:Eel River Basin Northern site and Midpoint site
Lat/Lon:40 48.69 124 36.68 and 40 47.5970 124 35.9720
Depth range:520 m (N. site) 519-560 m (midpt site)
    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: MCB-0348596

    Science objectives/activities planned:
To examine the diversity in community structure and variation in natural abundance 13C isotopic values for microorganisms in relation to geochemical gradients and carbonate formation within methane seep habitats.

Specific tasks will include:

1) Collect sediment push cores from different methane seep habitats (chemosynthetic clam beds, microbial mats, active bubbling sites) for geochemistry, microbial community analysis, 13C and 15N isotopic analysis for microbial biomass, and shipboard microcosm experiments.
2) Recover year-long seafloor incubation experiments (4 sand stone cores approximately ~ 8 in long and <2” diameter to be recovered by manipulator arm and secured in Alvin push core quiver + 2 microbial colonization stakes with T-handle to be recovered via attached PVC quiver provided by the Orphan science party).
3) collection of seafloor carbonate rocks with manipulator arm + transported in biobox.
4) collect niskin water samples above active methane bubbling.
5) Night operations include multicoring within seep area and oxygen minimum zone.

WHOI shipboard scientific instrumentation desired:
Fume hood
Refrigerator
-70 deg freezer
Walk-in cooler (AT only)
10-liter Niskin bottles

Is nighttime work anticipated on this cruise? Yes

    Critical MET sensors:
    Critical CTD sensors:

Do you need Seabeam? (AT and KN only)

Long baseline (LBL) transponder navigation? No. of xpndrs/nets:
Ultra-short baseline (USBL) navigation?
Doppler/GPS navigation?

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
    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
No
    Equipment handling
No
    Inter/intraship communications
No
    Science stowage
No

If yes to any of the above, please identify:

Will any of the following items be used on board?

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

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?
Will provide shortly