Cruise Planning Questionnaire

    Vehicle(s) required:
    Name of ship for ROV ops:
    Ch Sci:
John R. Delaney
University of Washington
School of Oceanography
Box 357940
Seattle, WA 98195
    POC / contact info:
Departure port & date:6/10/00;8.30/00
    Distance to first station:
    Number of stations:
    Distance between stations:
    Total days on station:
Arrival port & date:7/11/00;9/19/00
Op area:Juan de Ruca Ridge, Endeavour Segment
Lat/Lon:4757N; 12905W
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:

Grant or contract number: OCE-9820105

    Science objectives/activities planned:
The purpose of this investigation is to conduct in-situ time-series experiments in the Main Endeavour Field, to define the thermal, compositional, and microbiological variability in tidally perturbed hydrothermal systems. This two-cruise program involves intense coregistered instrumentation of both high-temperature and low-temperature diffuse vents and round the clock water sampling using Jason and Alvin of key sulfide chimneys. We will deploy a diverse set of instruments that include HOBOS (high-temperature probes), low temperture Vemco probes, in-situ hydrogen-temperature probes, temperature-resistivity (chlorinity) probes, thermistor arrays, current meters, a bottom pressure sensor, in-situ gamma detectors (monitors radon), an assemblage of instruments combined into the MEDUSA package (temperature, flow, fluid sampling), and a stand alone McLane water sampler for time-series sampling. Using these physical and chemical sensors and sustained fluid sampling, we will document the effects of tidal perturbatio
ns in fluid temperature, pressure, composition, and flow rate in areas of both high- and low-temperature flow. Our goal is to develop a series of interdisciplinary models linking the processes that produce these changes. This project will focus on the Main Endeaovur Field, but will also examine distal diffuse sites at Quebec to the south of the Maind Endeavour Field, and Clam Bed to the north.

WHOI shipboard scientific instrumentation desired:
    12 kHz Transducer
    3.5 kHz Transducers
Fume Hood
Deionized Water SystemChest Freezer
CTD/Rosette System-70 Deg Freezer
10-liter Niskin Bottles
Pinger for Wire Use

Is nighttime work anticipated on this cruise?

    Critical MET sensors:
    Critical CTD sensors:

Do you need Seabeam? (AT and KN only) No

Long baseline (LBL) transponder navigation? Yes No. of xpndrs/nets: Will talk with Alvin-Jason Group, but likely 4-6
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

Anticipated standard oceanographic cable use:

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?

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

    Electrical power
    Equipment handling
    Inter/intraship communications
    Science stowage

If yes to any of the above, please identify: There will likely be a ship to ship transfer of personnel and equipment-R/VBrownpment to the Brown.

Will any of the following items be used on board?

    Explosive devices
    Portable air compressors
    Flammable gases
    Isotope van

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?

Vehicle equipment required:Check one or both:
Major water samplers
Large capacity slurp samplers
Small capacity slurp samplers
Bio collection boxes
Push corers
Scoop nets
High temperature probe
Low temperature probe
Heat flow probe
Portable CTD
Digital Still Camera
Search Sonar
Profiling Sonar
Rock Drill (Jason only)
Video Duplication (Jason)
    Other vehicle-related equipment (list):
    Science equipment to be installed on vehicle:
A through hull link to MEDUSA-Adam Schultz has used this system before and will supply specifics, Inductively coupled links will be used on both Alvin and JASON-Al Bradley and Meg Tivey are talking with the Alvin-Jason group. David Butterfield and Marvin Lilley are working with the ALVIN and JASON groups on the NOAA/PMEL modified fluid-particulate sampler. Gas tight water bottles will be required with EZ triggers.
    Electronic equipment used in the ALVIN personnel sphere:
A small pc will be required for the fluid particulate sampler and perhaps MEDUSA. We will send these out for gas testing.
    Other comments and information:
If you have additional questions please contact John Delaney, Debbie Kelley, or Meg Tivey. Meg will be co-chief with John.

Date Submitted: 03/05/2000 02:51 PM