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October
12 - 19, 2001 vol. 38 no. 41 Calendar Friday, October 12 MARINE BIOLOGY SEMINAR - Willie Swanson, UCR, will present "Speciation by the Rapid Evolution of Reproductive Proteins" in 4500 Hubbs Hall at 12 noon. (kthamatr@ucsd.edu) Wednesday, October 17 ECOLOGY LUNCHEON SEMINAR - John Heyning, Los Angeles Natural History Museum, will present "Cetacean Evolution: Phylogeny, Controversies, and Common Ground" in 4500 Hubbs Hall at 12:15 p.m. (Tonya Huff, tonya_h6@yahoo.com) Thursday, October 18 MSPPC MEETING - The October meeting of the Marine Sciences Physical Planning Committee (MSPPC) will be held from 10:00 11:30 a.m. 114 Scripps Building. Action will be taken on a proposed coffee cart and exterior deck at the SIO Library. If you have any questions, please contact Jonathan Berger, x42889 COMPLEX SYSTEMS IN THE NATURAL ENVIRONMENT SEMINAR - A. Brad Murray, Division of Earth and Ocean Science/Center for Nonlinear and Complex Systems, Duke University, will present "The Self-Organization of Large-Scale Shoreline Shapes" in 4500 Hubbs Hall at 12:35 p.m. Refreshments will be served at 12:15 p.m. See http://complex-systems.ucsd.edu for further information. (Brad Werner, werner@mawson.ucsd.edu) AOS SEMINAR - Clint Winant, SIO, will present "Towards a Coastal Ocean Observing System" and Bob Guza, SIO, will present "Waves and Wave-driven Currents on Beaches" in 330 NTV Building at 4 p.m. (Amber Rieder, amber@mpl.ucsd.edu) Notices WHAT IN THE WORLD DO WE DO AT SCRIPPS? UCSD Scripps Open House, Saturday, October 20, 2001, 10 a.m.-4 p.m. -- Please bring your families and friends out to the UCSD/Scripps Open House to see the scientific equipment and meet the people from many of our exciting research projects! Our seafaring heritage is still alive today. You'll see how Scripps researchers adapt Jet Skis and ATVs for their science studies. How cool is that! Other exciting research projects on display include: studies of whale acoustics, an ocean bottom seismograph, microscopes to peer into Biological Oceanography, a wave measuring buoy, an Automated Expendable Bathythermograph system, samples from the famous Scripps Fish Collection, Sound in the Sea demonstrations off the Scripps Pier, info on CalCOFI studies and the Triana satellite, a giant drill bit used in the Deep Sea Drilling Project, manganese nodules, free Sea Grant publications, SIO Student organizations, a touch tank of live sea creatures, and more. You and your kids can steer remotely operated vehicles (ROV) around obstacles in a 15-ft diameter pool and learn how to build one at home! Plus, learn how you and your kids can build a simple but useful hydrophone with parts from Radio Shack, convert a disposable camera to do aerial photography, build a working model of an undersea house, make a Cartesian diver, probe a layered cupcake to learn about core samples, and other outreach projects Scripps folks do! And this is just what's at the "Scripps Science World" kiosk displays. There's also live music, face painters, Irish dancers, and historic building tours. Even a surf clinic! "Thank you" to the many researchers, staff, and students who have volunteered to make the Scripps portion of the UCSD Open House so memorable for our own families and our guests. A few volunteers are still needed to help direct crowds, man info booths, and other support tasks. Please call Cindy Clark, x41294, or <cclark@ucsd.edu> if you have a couple hours to share. (Kevin Hardy, khardy@ucsd.edu) TEACH PART TIME - The Oceanography Program at Palomar College is seeking qualified individuals to teach undergraduate-level oceanography classes (beginning January 2002). Palomar College is a two-year community college located in San Marcos and is about 35 miles north of downtown San Diego. The oceanography program at Palomar offers several sections of Oceanography 100 Lecture (general physical oceanography) each semester. Several of these sections are offered at a variety of off-campus locations. More information can be found at the Oceanography Program's Web site at: http://www.palomar.edu/oceanography/. Applicants must have a Master's degree or higher; previous teaching experience is a plus. If you are interested, please contact: Dr. Lisa DuBois UPCOMING LECTURE - "Can the Salton Sea be Desalted? A Cost/Benefit Analysis of its Future" by Ivan P. Colburn, Ph.D., Tuesday, October 30; 7-9 p.m. in the Charmaine and Maurice Kaplan Theater at the San Diego Natural History Museum---The Salton Sea has received much media attention in the last decade because of repeated reports of dead fish and birds, as well as the adverse environmental impact of the Sea's rising salinity. The Salton Sea began in 1905 when, during a flood stage, the Colorado River jumped out of its channel and for nearly two years flowed unobstructed into the Salton Trough to make a huge freshwater lake. In the succeeding 95 years, the lake's salinity increased until today it is a hypersaline water body with a salinity of 44 parts per thousand. Several prominent scenarios have been proposed to mitigate this growing problem. Join Dr. Colburn in an analysis of these scenarios and their related costs. Color slides and overhead projections will be used to illustrate the relevant environmental, physiographic, and technological factors as they relate to the present day condition of the Salton Sea. TO REGISTER FOR PROGRAMS, OR FOR MORE INFORMATION, PLEASE CALL (619) 232-3821 ext. 203 OR VISIT WWW.SDNHM.ORG. TIME TO SUBMIT OTHER WORKS FOR 2001 ANNUAL REPORT - Other Works is a section of the Publications appendix of the Scripps Annual Report. Any Scripps academic or staff member who has published works during fiscal 2001 (July 1, 2000-June 30, 2001) is eligible. Works might include scientific writings not eligible for the Scripps Contributions or articles of a non-scientific nature. Any serious publications are eligible for this general listing. Please send one copy of the publication to Technical Publications 0233B. (It will be returned to you after processing.) Deadline for the 2001 Other Works is November 1, 2000. Ship News Chief Scientist's report, R/V NEW HORIZON-10/08/01 - We undertake this cruise as part of the Eastern Pacific Investigation of Climate (EPIC), whose goal is to study air/sea interaction in the ITCZ. Specific objectives are to quantify the horizontal structure of the mixed layer and to estimate terms in the salt and heat budgets. During the first three weeks of the cruise we performed a two-ship operation with the NOAA vessel Ron Brown. The Brown made a variety of oceanographic and atmospheric profiles while sitting near a surface buoy at 10N, 95W. Meanwhile, we used SeaSoar to survey around the Brown. In addition, we observed a suite of atmospheric and surface ocean variables, including optical properties and air/sea fluxes. We had hoped to observe how precipitated fresh water is mixed into the ocean, and we have indeed gotten our share of rain. During the last week we have made a long section from 10N to 1S. On the return trip north we are doing horizontal tows in the mixed layer. The sharpness of the equatorial front is breathtaking, with a 2C temperature change in a horizontal distance of 100 m. We have overcome a few technical difficulties, and to date have towed over 7000 km. In addition, we have deployed four CORC/ARGO SOLO floats. SeaSoar will be recovered tomorrow (10/09/01) before steaming to Manzanillo. All on board believe this is the first time New Horizon has crossed the equator. We are proud to have among us five brave new shellbacks. (Dan Rudnick, Chief Scientist) FLIP: We're flipped up & moored at 18 N, 160 E, about 400 km west of the Big Island of Hawaii. FLIP is taking part in the Farfield Program of the Hawaii Ocean Mixing Experiment (HOME). Our objective is to quantify the energy being radiated away from the Hawaiian Ridge in the internal tide. From TOPEX, we now have good estimates of the energy being lost from the surface tide at the Ridge. The difference in these values is the energy that did not radiate away. It is presumably available to drive mixing processes at the Ridge. Pete Worcester, the leader of the Farfield phase of HOME, has just deployed a four mooring tomography array south of the Ridge.Our station is near the array center. We're profiling with CTDs and micro conductivity from the surface to 750m at 4 minute intervals.Our new Deep-8 Doppler Sonar is measuring velocity & acoustic scattering strength over the same depth range with 4m depth resolution, 30 s time resolution. The big initial surprise is the strength of the first harmonic of the semi-diurnal internal tide. On Saturday (Oct 6), a six hour period wave group passed by that had far greater amplitude than the 12 hour fundamental. On the 7th, the semi-diurnal fundamental had a "sawtooth" waveform, again a symptom of an energetic harmonic structure. We look forward to the coming spring tide to see the full range of phenomena at this site. Thanks to George Trekas & the MPL shop for help in building our instruments, to Tom Golfinos & the FLIP crew for getting the experiment up & running. Frank Biegler & Norm Waters made the deployment of our thirty thousand foot anchor line look "easy". Special appreciation to Bill Gaines for keeping our operation going, logistically, in spite of the chaos of recent world events. (Rob Pinkel, MPL) R/V Revelle Weekly Scientific Report - DRFT05RR is the initial seagoing effort of a three-year project to use seafloor geodetic measurements to image the up-dip limit of the subduction thrust fault of the Nazca-South America plates offshore Lima, Peru. After a load-out in Puntarenas, Costa Rica we headed south for five days to Callao, Peru. During the transit we collected seafloor topographic and magnetometer data for colleagues at SIO. With a two-day port stop in Callao, we took aboard additional scientific party that includes representatives from Instituto Del Mar Del Peru (IMARPE), Instituto Geofisico Del Peru (IGP) and Direccion de Hidrografia y Navegacion. Upon leaving Callao a two-hour transit brought us to our study area and the start of multibeam swath mapping to collect bathymetic data. Over three and a half days we mapped an area starting just seaward of the trench continuing for 60 nm landward and extending for 80 nm along the trench. Using these data we have identified preliminary sites (11 nm and 28 nm landward of the trench) to place our seafloor transponders. We are currently investigating both sites by collecting CTD profiles from surface to seafloor and lowering of the MPL control vehicle to use its camera to observe the fine scale features of the bottom. We plan to deploy our seafloor transponders over the next few days. The efforts of Captain Curl, Chief Engineer Mauricio and crew are keeping us engaged, productive and well-fed. (Dave Chadwell)
CRUISE MAP INDEX/AREA/ CH SCI/INSTITUTION/ PORTS DAYS/AGENCY/ R/V Melville R/V New Horizon R/V Robert Gordon Sproul David Starr Jordan
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