Cruise Planning Questionnaire


Ship: ATLANTIS
    Vehicle(s) required:
ALVIN
    Name of ship for ROV ops:
    Ch Sci:
Daniela Di Iorio
    Affiliation:
University of Georgia
    Address:
Department of Marine Sciences
250 Marine Sciences Bldg
Athens, GA 30602
    Phone:
706 542 7020
    Email:
daniela@uga.edu
    POC / contact info:
Departure port & date:Astoria, OR, Sept 13, 2007
    Distance to first station:
Endeavour MEF 350nm
    Number of stations:
1, Grotto hydrothermal vent
    Distance between stations:
0
    Total days on station:
3
Arrival port & date:Astoria, OR Sept 30, 2007
Op area:Endeavour Segment, Juan de Fuca Ridge
Lat/Lon:47deg57'N, 129deg06'W
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: OCE0449578

    Science objectives/activities planned:
The science objectives are to sample the hydrothermal vent plume of Grotto in the Main Endeavour vent Field and to recover and redeploy two acoustic scintillation moorings. Moorings will be recovered by acoustic release mechanism and serviced on board the ship. Redeployment will be to some drop location and Alvin will locate moorings using the Homer probe, and place the moorings to previous locations using previous anchors as markers - all instrumenation on the moorings are Alvin certified to 2242 m. Direct sampling involves video and acoustic imaging of the plume, plume temperature as a function of height, temperature as a function of 100m spatial distance around Grotto, plume water samples for particle concentrations and size distribution at approximately 20-30 m above the vent orifice. Navigational data for Alvin is required.

WHOI shipboard scientific instrumentation desired:
CTD/rosette system

Is nighttime work anticipated on this cruise? Yes

    Critical MET sensors:
    Critical CTD sensors:
conductivity-temperature-pressue

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

Long baseline (LBL) transponder navigation? Yes No. of xpndrs/nets:
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
    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? No

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?