Cruise Planning Questionnaire


Ship: ATLANTIS
    Vehicle(s) required:
    Name of ship for ROV ops:
    Ch Sci:
Spahr Webb
    Affiliation:
LDEO
    Address:
61 Route 9W
Palisades, NY 10964
    Phone:
845-365-8439
    Email:
scw@ldeo.columbia.edu
    POC / contact info:
Departure port & date:Manzanillo, Feb. 14, 2007
    Distance to first station:
about 550nm
    Number of stations:
about 75
    Distance between stations:
various
    Total days on station:
31
Arrival port & date:Manzanillo, Mar. 20, 2007
Op area:9-10N EPR
Lat/Lon:9 15' to 10 30'N, 104 30'W to 103 20'W
Depth range:2500-3500m
    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: OCE-0426372

    Science objectives/activities planned:
Geophysical and geodetic studies of rise axis.
We will conduct about 50 compliance meter deployments and recoveries (similar to OBS). Deploy/ Recover 5 bottom pressure recorders and deploy 20 BPRs for three year deployment.

WHOI shipboard scientific instrumentation desired:
    12 kHz transducer

Is nighttime work anticipated on this cruise? Yes

    Critical MET sensors:
    Critical CTD sensors:

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

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

Will you be using portable science vans? Yes How many: 1


Science Van #1
Science Van #2
Science Van #3
    Type/size
Standard container/ (not working lab)
    Location
main deck if possible
    Water
no
    Power
no

Anticipated standard oceanographic cable use:

Instruments(s)
Instrument Weight(s)
Maximum Depth
    Conducting hydro
    Steel hydro
BPR wireline deployment
290lbs
3000m
    Steel trawl
    .681" fiber optic
    Do you require slip rings?
NoNumber of conductors:
    Do you need non-standard wire?
NoIf so, what type?
    Do you need a traction winch?
No
Will you be bringing any equipment (winches, blocks, etc.) that lowers equipment over the side? Yes

If yes, please provide details: We plan to deploy the bottom pressure recorders by wireline. We will be using a release lent to us by Rob Evans (WHOI). We have tested the deployment using the R/V Sproul.

The BPR instrument looks like a very short mooring (17') and is lowered to the seafloor by hydro wire. The BPR has an acoustic transponder (Edgetech). The wireline deployment will allow us to precisely position the BPRs and to test function at depth before release. The release trips when the instrument reaches the seafloor. The BPR weighs 290 lbs with a 107 lb tripod anchor.
BPR work is with Milene Cormier.
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?
Lithium Battery packs will be returned to NYC at end of cruise for disposal.