+--------------------------------------------------------------------------+ | KNORR CRUISE SYNOPSIS | +--------------------------------------------------------------------------+ Voyage - Leg: KN 162-12/13/14 Voyage Dates: 27 Mar - 5 May 2001 Chief Sci(s): Cindy Lee Van Dover Address: 328 Millington Hall Biology Department College of William & Mary Williamsburg, VA 23187 Phone: Tel: (757) 221-2229 Fax: (757) 221-6483 Email: cindy_vandover@wm.edu Cruise Objective: Hydrothermal vent exploration, mapping, sampling Science Activities: CTD, Tow Yo, Seabeam data analysis and processing as well as real time DSL-120 and Argo data analysis and plotting, Gravity Core, Rock Dredge, Jason, Argo II Operations Area: Central Indian Ridge 25S to 18S & 65E to 70E 2500-4500m SSSG Tech: Amy Simoneau Dave Sims Departure Port: Seychelles Agent: Master R/V Ship Name Attn: Scientist's Name c/o Mahe Shipping Co. Ltd. Maritime House Laurier Ave., PO Box 336 Victoria, Mahe, SEYCHELLES Contact: Capt. W.M. Ernesta Phone: 011 248 380500 Fax: 011 248 380538 Email: maheship@seychelles.net Arrival Port: Seychelles Agent: Same Installed Scientific 12kHz Transducer Equipment: 3.5 kHz Transducers PDR Gravity Corer Rock Dredges Rock Saw SEANET P-Code Transducer Net A-Frame ADCP XBT System De-ionized Water System CTD 4000-5000m Incubator Fume Hood Refrigerator Chest Freezer -70Deg Freezer IMET Sensors Pinger for Wire Use Slip Rings 10 Transponders Seabeam WHOI-Provided Science Isotope Van Tools: Several DSOG ROV Vans Traction Winch Cable: Cond. Hydro, Steel Hydro Steel Trawl, .680" Fiber Zodiac - Small Boat Port. Winch, DSL Program-Provided Storage/Shipping Van Science Tools: Shipboard Equipment/Nav: Other Requirements: DSL-120 Sonar Argo-II, Jason Notes: What follows is a discussion of sampling needs and various devices or adaptations that needed to be sorted out in the next 2-3 months before the DSOG-ROV vans leave WHOI. These include the following major items: 1) elevators (we will request that we have a minimum of 2 elevators, and will discuss with the ROV group modifications to the normal elevator to permit side loading of bio-sample containers, stand-alone slurps, etc.). Elevators need to be deployed close to vent sites. 2 questions emerge: A) can we deploy elevators w/the hydrowire and a transponder and acoustic release WHILE JASON IS DEPLOYED? this means 2 wires over the side simultaneously. B) if the above is not practical, how can we get the elevators close to the vents? will the steerable elevator be available? can Jason transport the elevator to close to the vent? 2) we need to build modular, insulated sample containers for large animals (eg tubeworms), as well as other collections (clams, mussels, etc.) and design a way for Jason to be able to efficiently load them, and transport them to/from the elevator. the samples must be able to be sent to the surface quickly after collection so that they survive the trip to the surface and can be processed on board. 3) We need some smaller containers for Cindy?s mussel collections, she will send one of her "stock-pot" samplers to see if Jason could handle that An associated question is whether any modification or adaptor devices to Jason manipulator gripper is needed to handle expected biological sampling requirements (e.g. tubeworms, mussles, clams, etc.) Perhaps this could be done with scoops or other devices that the manipulator would grip? 4) We will need to have numerous ICL temperature probes available, AND TAILORED TO THE MAJOR PAIRS AND LILLEY GAS-TIGHT WATER SAMPLERS. We also have to have a few ICL probes with heavy walled tubing so they can be used as probes to test temperature in various vents prior to sampling and to excavate orifices. Dan will work with DSOG to ensure sufficient ICLs and spares are available for the cruise Marv - needs to send gas tight bottles to WHOI so we can fit ICLs to them also need to check on X-handles for gas tights Karen- needs to come to WHOI to check on major samplers and supplies (e.g. nozzles, X-handles, etc.) We want to have ALL the major samplers now on Atlantis available for this cruise given the importance of fluid chemical sampling Marv and Karen discussed the possibility of bringing marv?s new manifold sampler for diffuse flow or other sampling. Karen and Marv need to discuss this further and determine if it should come and any issues related to it?s integration with Jason (it has already been used on Jason so these should be minimal). Marv needs to provide an estimate of the costs and other types of support it requires. 5) Slurp samplers - 2 different types of slurp requirements will be needed. One with an in-line filter so that the fluids from a diffuse vent get pumped through the filter for 30 min. or more. The second application is for slurping largers mobile animals (e.g. shrimp, amphipods, etc.). Dan proposes to develop a stand-alone slurp so that the samples can easily be transported back up to the surface after they have been collected. The basic design would be a DSPL SeaBattery for power, a Pelagic pump (or two) for suction, and a sample container similar to what is now used routinely on Alvin. Dan will discuss this with the ROV group to sort out details. Colleen and Anna-Louise need to contact Dan regarding their priorities and needs with respect to slurp sampling. An email summary of requirements and intended sampling scenarios would be helpful. Colleen needs to provide details re; the in-line, in situ filtration. 6) Small Niskin bottles will be needed for near vent plume/particulates. Colleen and Dan will see what is available. We also have to figure out how Jason can trigger these while holding them. 7) Various sampling devices are needed for chimney/sulfide structures and rocks/lava. We need to either borrow some Alvin scoops/samplers or have material on board for making them. We need to have adequate supplies on board for on-site manufacture of sampling devices. Cindy needs to look at possible Kevlar mesh/cloth for chimney sulfide collection as well as animal collection 8) We need markers. Dan, Cindy, Susan and Karen will explore options for markers so we leave markers at different vents. This includes exploring use of syntactic blocks, bucket lids and different types of tether line and anchor weights. 9) We will need Jason to be able to take push cores, so the ROV group needs to provide the needed corers and quivers. 10) ESC on Jason- this needs to be discussed with the ROV folks given the weight issues and other imaging requirements. It would be extremely useful to be able to collect digital images of the vent area, both horizontal view (from Jason) and vertical (downwards from Argo) so that we have comprehensive maps of the vent sites. 11) We should plan to use the SM2000 near-bottom multi-beam system, either from Jason or Argo to make very high resolution bathy maps of the areas. This system has recently been acquired by the DSOG and has been successfully used on recent field programs.Action Item List culled from above discussion: WHOI DSOG- ROV Group --------------------- elevators (2) , transponders (10), bio and fluid samplers (need ALL Alvin Major samplers, ICL units with major and gas tight bottles and stand alone for temp monitoring of fluids and animals, manipulator spares/modifications for sampling, push corers, nets/scoops, sampling devices, ESC for Argo AND Jason use, slurp sampling (stand alone idea of Dan?s), EM2000 for Argo and Jason, Imagenix in profiling mode, CTD and transmissometer on DSL-120, Argo and Jason, small Niskin bottles (and triggering mechanism) marker dropper... for Argo and Jason (please provide status of this device from AHA cruise), pelagic pumps for slurps sampling (from Alvin Group) WHOI MARINE OPS --------------- isotope van needed for additional lab space additional -70degC freezer (Barrie said he would buy and ship in DSOG vans) additional portable lab benches needed portable light table for mapping work overtime for ship?s personnel (we expect 24 hr/day operations) stay onboard on arrival in Mahe (2-3 days prior to departure - NO MEALS) status of dredges, wires etc. post Dick cruise need SeaNET multibeam sonar (need to use plotter for other plotting/mapping- extra pens/paper) Pelagic pumps for slurps sampling (from Alvin Group) Major Ti fluid samplers (need full inventory from Alvin Group)see above and *WE WILL WILL NEED TO USE THE SHIP FOR SCIENCE OPS. 24 HRS/DAY FOR THE DURATION OF THE STATION TIME ON THIS CRUISE* Navy Clearance Status: Last Modified: 04/25/2001 Check List: Required? Comments US Customs Form Yes Explosives Clearance No Isotope Use Approval Yes Diplomatic Clearance Yes SCUBA Diving No