Cruise Planning Questionnaire

    Vehicle(s) required:
    Name of ship for ROV ops:
    Ch Sci:
Craig Cary
Univ. of Delaware
700 Pilottown Rd.
Lewes, DE
    POC / contact info:
Departure port & date:20/10/02
    Distance to first station:
    Number of stations:
    Distance between stations:
    Total days on station:
Arrival port & date:12/11/02
Op area:NP13
Lat/Lon:9 46.5N/104 16.8W
Depth range:2500m
    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:

    Science objectives/activities planned:
Collection of Alvinellid worms from characterized habitats. Characterization of the thermal and chemical environments of the Pompeii worm. Discrete collection of young sulfide features from a variety of habitats. Collection of large volumes of water form a variety of vent environments. Large educational/outreach effort - Extreme 2002 - will take place during the leg.

WHOI shipboard scientific instrumentation desired:
Fume Hood
Deionized Water SystemChest Freezer
CTD/Rosette System-70 Deg Freezer
Pinger for Wire Use

Is nighttime work anticipated on this cruise? Yes

    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: Alvin requirements
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?
NoNumber of conductors:
    Do you need non-standard wire?
NoIf 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: Large science equipment to be determined

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:
The SIPPER unit is a microwater sampler that requires a 50 v DC power source and RS232 communication. In-water weight of 21 lbs/air 41lbs. 50v power out of sphere from a Vicor DC-DCpower supply (26v input). RS232 comunication is used for control of the unit and input of data. The sipper has been deployed on 6 past cruises very successfully and is well known by the Alvin group. Attached to the SIPPER is a separate thermocouple unit that requires RS232 communication and 12 volt power. This unit was designed and built by Lane Abrams at WHOI and needs to be logged in the Alvin data system and displayed on the video data overlay. Previously the serial port replaced the Alvin ICL serial port since the data and display functions do not require any changes using this port. The SIPPER unit has the ability to take 12 independent water samples. This unit is positioned at the rear of the basket but in view of the pilot. The water samples are taken with continuous temperature measurements through 2 tubes that terminate i
n a "T" handled wand unit. The thermocouple unit interfaces with the wand and is cabled back to a small communication bottle positioned to the rear of the basket. We anticipate that this unit will go down on all dives.
An addition to the SIPPER will be a small water pump (Sea-Bird) that will require 15 volts output from the sub (in water wt. = < 3 lbs):. We have built a small converter that will be wired inside the sub to take 26v and step it down to 15v. This converter also will be equipped with an independent switch that will be used to turn the unit on and off. An amp meter in this control box serves to inform the user if the unit is operational and pumping.

?Mosquito? thermocouple (in water wt. = < 1 lbs): We intend on doing long term deployment of the mosquito probe. This unit has been used by the Alvin group in the past (Nature paper). The unit consists of a DSPL HOBO with only a 8? probe. Our intention is to make it neutrally buoyant with syntactic foam and fly it free line into an hot Alvinella tube. We intend on 3-24 hour deployments.

Mini-SPITTERS (in water wt. = < 2 lbs): These are small single shot syringe units that dispense fluorescent dye from a small tube. These have been used by the Alvin group in the past. Each unit is held in the manipulator with the hydraulic actuator by it?s Tee-handle. When the small delivery tube is correctly positioned in the hot Alvinella tube ? the pilot fires the unit and the dye is injected. Total injection time > 1 min. We anticipate 1-3 units being carried on each dive.

Chimney Sampling (in water wt. = anticipate 10 lbs each)::
We have designed several new sampler devices that we will be testing on this cruise
to take discrete sulfide samples. The samplers are currently being built at Arizona State University for deployment in Oct. One unit will have the ability to sample and contain small chimneys. The other will be positioned on a orifice so that the emerging fluid is channeled through several small chambers that will house various minerals. Both units will be deployed and recovered (placed into large biobox) by the submersible.

Other equipment:
The Cary bio-box?s has been built to contain and isolate the chimney samples from the surrounding water. A small unit () will be deployed on most dives. The larger unit () be used exclusively when chimney samples are to be collected.

Animal fixation rig (in water wt. = anticipate < 2 lbs):: This unit is designed to retain Alvinella and small Riftia for RNA analysis. It looks much like a coffeepot with attached filter rig contained in a PVC tube. The tube is sealed at one end and has a door at the other. The fixation fluid is pre loaded into the lower ?pot? and then sterile vent water is laid on top. The door is closed to retain the solutions and avoid mixing until needed. On the bottom animals are collected using a small scoop. The fixation bottle is opened revealing the upper filter cone. The animals are dropped inside and allowed to fall down the cone into the lower pot where they are immediately fixed. In the event there is a clog we will have a small ram-rod that can be used by the pilot to push the animals through the restriction.

SeaNet: We will have a educational/outreach effort going on during the cruise. This NSF funded project (inc. one Alvin dive!) will be an up-scaled version of our Extreme 2000 effort we had in Jan 2000. Here we intend to include over 40 schools US and internationally. The success of Extreme 2000 can be attributed to many but at the top of that list was the Alvin group and the crew of the Atlantis. NSF was so impressed with the outcome that they awarded us an additional dive to expand the program next October. Plans are in the works to do just that. We will need access to FTP capabilities on Seanet similar to those in place for Dive and Discover that will allow daily transmission of Mpegs, and text to our home FTP site. We request the SSSG be current with these technologies and able to assist us in making this happen. We will also need the Mac to be G4s. We were promised these last time and really do them in Oct.

Elevator Use (in water wt. = anticipate < 5 lbs, water sample out of water wt. < 250lbs)::
We are intending on using the elevator everyday for equipment deployment/recovery and water sampling. For the water sampling we are intending of collecting 50 liters of water on a regular basis. We are currently designing a water collection pump assembly that will be mounted to the elevator. We will deploy the elevator and locate and position near vent on the bottom. Our intention is to have a pump hose that will be pulled from a housing to the desired position on a chimney. The pump will turned on via a magnetic switch. Bags will be filled with the vent water until full. The switch will be turned off by placing the magnet back on the switch. The hose will be secured and the unit sent to the surface. This unit was used last year on Extreme 2001 by Dr. Eric Wommack.

    Electronic equipment used in the ALVIN personnel sphere:
Small palm top computer for SIPPER operation

Hand held Video camera/still

Pump switch for SIPPER

Lap top - for sipper operation

All equipment has been gas tested
    Other comments and information:
We are currently developing several new pieces of equipment that we hope to deploy in October. None of these will be hard wired to Alvin and will all be pressure tested as per Alvin specs prior to the cruise.
The ojectives and needs for this cruise match those of Extreme 2001 except where noted above.

There will be a large educational effort (Extreme 2002) tied to this leg like in previous cruises. We will need the help of the SSSG to transfer large data sets via SeaNet on a daily basis. In addition, we will want to run 4 dives sequencially with a phone patch to shore, similar to Extreme 2001.

Date Submitted: 05/09/2002 08:24 PM