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V32n04 1991-04.Pdf (1.129Mb) NEWSLETTER WOODS HOLE OCEANOGRAPHlC INSTITUTION APRIL 1991 DSL christens new JASON testbed HYLAS, a new shallow-water ROV (rerrotely operated vehicle) was S christened with a bottle of cham­ pagne last month at the Coastal Research Lab (CRL) tank. A Like other vehicles developed by l WHOl's Deep Submergence Lab, HYLAS gets its name from a figure in Greek mythology. The tradition started when Bob Ballard named JASON after the legendary seeker of the Golden Fleece. DSL's Nathan Ulrich was responsible for naming HYLAS. According to myth, Hylas was an Argonaut and the pageboy 01 Her­ cules. When the ARGO stopped on the way to retrieve the Golden Fleece, Hylas was sent for water. A nymph at the spring thought he was so beautifullhat she came from the DSL Staff Assistant Anita Norton christens HYLAS by pouring champagne water, wrapped her arms around him, over it in the Coastal Research Lab tank. and dragged him down into the pool to live with her forever. Hercules was designed to be compatible with those JASON precisely in the critical areas so upset that he wandered off into on JASON. JASON's manipulator that will be used for testing, the the forest looking for Hylas, and was arm and electronics will be used on testbed vehicle was built ~ss expen­ left behind when Jason and the initial experiments with HYLAS to test sively. For instance, HYLAS uses ARGO put to sea. methods of vehicle/manipulator light, inexpensive foam instead of the Like its namesake, the ROV control. An improved manipulator costly syntactic foam used on HYLAS will spend its life in a pool. design which will work on both JASON. HYLAS will kept primarily in the be vehicles is also being planned. HYLAS was designed by Nathan CAL tank, and will be used to test HYLAS is about 40 percent of Ulrich and Dave Mindell of the Deep new systems for other ROVs such the size of JASON and is about 3 Submergence Lab and was built by as JASON. feet by 3 feet by 6 feet. Will Sellers. Dana Yoerger was the The systems on HYLAS are Although HYLAS duplicates principal investigator on the project. Aubrey, Emery dispute sea-level rise theories in new book In a book being released this accurate numbers for relative sea­ obtain these measurements are month, WHOI sCientists David level rise." placed primarily in the northern Aubrey and K.O. Emery dispute Many researchers interested in hemisphere and along continental recent analyses of sea-level rise and the climate change debate consider margins where land movement is question scientists' ability to accu­ sea level a good early indicator 01 high. rately measure changes in sea level. climate shifts because slight in· Acoording to Aubrey and Emery, Sea Levels, Land Levels and creases in atmospheric temperature land movement caused by both Tide Gauges, published by Springer­ may produce expansion of ocean natural and human activity is not Verlag, is the culmination of ten water a nd a greater volume of water always taken into account by scien­ years of research on the impact of from melting glaciers. tists analyzing sea level records. In tand movement on tide gauge Current records indicate that sea Bangkok, for example, the earth is records of sea level. It indudes level is rising about one millimeter a compressing 10 centimeters a year analyses of prehistoric and modern year. But Aubrey and Emery a'rgue becaUse of the pumping of ground knowledge of relative sea-level that the causes of this rise remain water from aquifers below. Land change in areas around the world. unclear, and might have more to do movement caused by volcanoes, ''The focus of the book is that the with land movement than wnh faults, and sinking deltas further land moves more than the sea," says warming. compncate measurements. Aubrey. "Until we understand more Furthermore, they argue, sea The high level 01 aclivlly on land, about tectonics and man's effects on level data is biased because the tide the authors argue, leaves scientists land movement, we can't prOduce gauges that have been used to without a constant surface against which to measure sea-level change. Ship Notes Henri Berteaux repairs to its septic system, and then hosts workshop ATLANTIS/ALVIN set out again for Ponta Deigada, Azores. Senior Research Specialist Henri ATLANTIS and AL VtN departed On or about May 1, OCEANUS Berteaux of AOP&E hosted the Acapulco March 28 on Leg XXIV of will depart Ponta Delgada on Leg /I Marine Technology Society's Buoy Voyage #125. of the voyage. This leg will carry it to Technology Workshop at WHOI April The purpose of the cruise is to Funchal, Madeira. 10-12. conduct hydrothennal, The purpose of the cruise is to About 75 researchers from the volcanological, and geochemical initiate the field program of the United States, Canada and France studies on the East Pacific Rise. Subduction Experiment, a multi-year attended the workshOp, which A total of 25 dives by DSV study of the mechanism by which provided an informal forum to ex­ ALVIN will be made to collect rock water masses in the mixed layer and change information on current buoy and water samples. near·surface layer of the ocean find technology and act/VRies. The Night-time scientific activities will their way into the upper thermocline. workshop consisted of eight sessIons include rock dredge and gravity core The location of experiment will be the covering hulls, mooring materials and stations and surveys using Sea eastern Atlanlic, south of the Azores. systems, anchoring systems, buoy Beam and 3.5 kHz systems. electronics, buoy instrumentation, The vessel will return to drifting buoys, and field experiments. Acapulco April 27. KNORR WHOI speakers Included Henri, George Tupper, Sean Kery, Richard KNORR is expected to be Trask, Dan Frye, Paul Fucile, Brian OCEANUS delivered to Woods Hole in late July, Howes, Wayne Spencer, Mark following completion of ns upgrade Grosenbaugh, Peter Wiebe, Keith OCEANUS departed Woods and shipyard work in Louisiana. von der Heydt, and Alessandro Hole April 22 on Leg I of Voyage The vessel will undergo Bocconcelii. #239. After one day at sea, the shakedown and outfitting in Woods The workshop was sponsored by vessel returned to port for minor Hole through the rest of the summer. the NOAA Data Buoy Center of Bay SI. Louis, Mississippi. 2 WHOI NEWSLETTER WHOI gets $500,000 grant from Kresge Foundation WHor has been awarded a forthe ship's six scientific laborato­ Proposals submitted jointly by $500,000 challenge grant from the ries, and a new rescue/workboat. scientists and engineers will be Kresge Foundation to complete the Various other upgrades on reviewed by a panel of their peers instrumentation of the AN KNORR. KNORR will also be made with the and awarded on the basis of creativ­ The challenge grant will be Kresge Foundation grant. Major ity and innovation in meeting a awarded when the Institution raises upgrades will be made to a hydro­ special instrumentation need. about $2 million in endowment for its graphic boom, which allows placing KNORR, the Institution'S largest new Technology Innovation Award instruments away from the ship's research vessel, is completing a Program, which supports competitive side and recovering equipment at major overhaul at a Louisiana awards to staff scientists and engi­ different locations on the ship, and to shipyard and is expected to return to neers to develop new or irrproved the ship's hydrographic winch and Woods Hole in late July. The 20- scientific equipment. The National winch readout system, which mea­ year-old vessel has been lengthened Science Foundation is providing an sures the amount of cable going over 34 feet to 279 feet, making it the additional $500,000 toward scientific the ship's side. KNORR's dynamic largest in the U.S. academic re­ equipment to complete the KNORR's positioning system, a computer­ search fleet of some 25 ships. outfitting. controlled navigation system that The Kresge Foundation of Troy, "The changing nature of ocean­ permits the ship to hold a position, Michigan, is an independent private ography, and the increasingly will be modified for use with the foundation created by the personal complex answers sought from its ship's new propulsion system. A gifts of Sebastian S. Kresge. Grants practitioners, have meant a change traction winch system capable of are made toward projects involving in the nature of research vessels," handling remotely operated vehicles construction or renovation of facilities Craig Dorman said. "In the past (ROVs) will be installed, and a fiber and the purchase of major capital scientists brought rruch of their optic cable to transmit high quality equipment or real estate. In 1990 the equipment with them onto ships that color images from the ocean bottom Kresge Foundation reviewed 819 provided vacant space and flttle to the surtace and by satellite to proposals and awarded grants standardized equipment. Today laboratories around the world will be totaling $57,753,000 to 169 organiza­ oceanographers depend on ships acquired for use with the Institution's tions in 33 states and the District of that can accommodate larger and JASON family of ROVs. Columbia. Organizations receiving more complex over-the-side instru­ WHOI established the Technol­ grants included institutions involved mentation and are equipped with ogy Innovation Award Program to in higher education, health and long­ sophisticated electronic hardware stirrulate development of new term care, arts and humanities, social capable of making precise measure­ instrumentation by bringing teams of service, science and the environ­ ments for sCientists in different scientists and engineers together. ment, and public affairs.
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