 |
 |
||||||||||||||||||||||||||||||||||||||||||||||||
Calendar Friday, February 28 MARINE BIOLOGY SEMINAR - Douglas Nelson, UC Davis, will present "Filamentous Sulfur Bacteria at Deep-Sea Hot Springs and Cold Sulfide-Rich Seeps: Ecology, Physiology, and Evolutionary Relationships" in 4500 Hubbs Hall at 12 noon. SPECIAL CRD SEMINAR - Allan A. Nielsen, Informatics and Mathematical Modelling, Technical University of Denmark, will present "Multi-Set Canonical Correlations Analysis as an Extension to Empirical Orthogonal Functions Analysis" in 101 Nierenberg Hall at 3:30 p.m. Refreshments will be served at 3:15 p.m. The seminar is sponsored by the Climate Research Division. (Carolyn Baxter, x46584) Monday, February 26 COMPAS/PORD - David E. Dietrich, AcuSea, Albuquerque, New Mexico, will present "A Detailed Computer Simulation of the Black Sea Circulation and Coastal Eddy Dynamics" in 101 Nierenberg Hall at 9:30 a.m. (Detlef Stammer, x23376) GEOSCIENCES MARINE CHEMISTRY & GEOCHEMISTRY SEMINAR - Eli Silver, UC
Santa Cruz, will present a title to be announced in 4500 Hubbs Hall at
4 p.m. Wednesday, February 28 SPECIAL SEMINAR - Elena Gorokhova, a candidate for the MLRG Research position, will present "Specific Growth Rates, RNA Content, and Ribosomal RNA Genes: Towards an Integrated Approach for Zooplankton Production Studies" in 4500 Hubbs Hall at 10:30 a.m. (Mari Vargas, x42868) ) CALSPACE SEMINAR - Robert Frouin, SIO/UCSD, will present "Phytoplankton
and Climate" in Room EBU1, Engineering Building - Unit 1, Room 4307, at
12 noon. ECOLOGY LUNCHEON SEMINAR - Gabrielle Nevitt, UC Davis, will present a title to be announced in 4500 Hubbs Hall at 12:15 p.m. (Chris Janousek, cjanouse@ucsd.edu) PORD SEMINAR - Sarah Gille and Paul Robbins, PORD, and Joel Norris, CRD,
will present ongoing work in 101 Nierenberg Hall at 3:30 p.m. Thursday, March 1 SPECIAL SEMINAR - Dave Schneider, Memorial University, will present "Scaling in Ecology: Theory and Application to Fisheries" in 4500 Hubbs Hall at 12 noon. Friday, March 2 MARINE BIOLOGY SEMINAR - Lars Tomanek, Stanford, will present "Stress Proteins, Thermotolerance, and Biogeography in Intertidal Tegula Snails" in 4500 Hubbs Hall at 12 noon. DOCTORAL DISSERTATION DEFENSE - Ginger Rebstock will defend her doctoral
dissertation entitled, "Long-term Changes in the Species Composition of
Calanoid Copepods off Southern California" in 4500 Hubbs Hall at 2 p.m.
The public is invited. Notices AGASSIZ MEDAL RECIPIENT - Scripps Professor Emeritus Charles S. "Chip" Cox has been awarded the Alexander Agassiz Medal from the National Academy of Sciences (NAS). Chip will receive a medal and a $15,000 prize during the NAS annual meeting on April 30 in Washington, D.C. Awarded every three years for original contributions in the science of oceanography, the Agassiz Medal was established by a gift from Sir John Murray. Chip was honored "for his pioneering studies, both theoretical and instrumental, of oceanic waves, microstructure and mixing, and of electromagnetic fields in the ocean and in the seafloor." (SIO Communications, x43624) UCSD 40/40 VISION LECTURE SERIES - Richard Somerville, Scripps professor of meteorology, will present a free, public lecture as part of the UCSD 40/40 Vision Lecture Series, on Wednesday, March 14 at 7 p.m. at the Institute of the Americas, Copley Auditorium on the UCSD campus. Somerville's lecture is titled "Can Climate Models Be Trusted?" He will present a comprehensive overview of climate change issues, ranging from the newest research results to the ongoing diplomatic and political debates sparked by climate science. The UCSD 40/40 Vision Lecture Series, honoring the 40th anniversary of UCSD, celebrates forty years of research, discovery, teaching and public service at UCSD. The series, running October 2000 through June 2001, features internationally renowned UCSD faculty members reflecting on important ideas and breakthroughs over the last forty years and giving their prognostications for the next forty. The speakers will emphasize the implications of cutting edge research and scholarship within their disciplines for the lives of all San Diegans. Admission to the lectures is free and parking is $3 (without a UCSD parking permit). For more information, please contact Edie Munk at (858) 822-0510 or emunk@ucsd.edu. ONCE AGAIN, THANK YOU TO MAURY AND CHARMAINE KAPLAN! Thanks to Maury
and Charmaine, the planned Center for Marine Genomics, Biotechnology and
Biomedicine (CMGBB) will have a Micro Array/Reader. The Kaplans recently
gave $150,000 to make it possible for SIO to purchase this state-of-the
art equipment and take an important step toward establishing Scripps as
a center of excellence in marine genomics. OUTREACH & DIVERSITY INFORMATION: Call for individual proposals for the Staff Equal Opportunity Enrichment Program (SEOEP), 2001-02 fiscal year. This program provides individual awards for training activities, up to $500, for career employees seeking a promotion or career change who meet performance evaluation requirements, have completed their probationary period, and submit a complete proposal. All applicants will be considered without regard to gender or ethnicity. One of UCSD's objectives is to increase diversity in career positions. The implementation of the SEOEP is one method by which this objective may be achieved. Career employees, who aspire to a promotion or career change to any of UCSD's job titles and who meet the requirements, are encouraged to apply. SIO will hold a 'how to' workshop on March 13, from 12 noon - 1 p.m. at DSDB-West Conference Room. Patty Arnett will review the application form and answer any questions. For more information and application forms please go to: http://.ucsd.edu/seoep. Application forms available from Lupe Cook, lcook@ucsd.edu or x46668. OFFICE OF SEXUAL HARASSMENT PREVENTION & POLICY PRESENTATION - On March
9, from 1-3 p.m. in 114 Scripps Building, Lori A. Chamberlain will present
"News You Need: Avoiding Harassment in the Workplace. Legislation in California
went into effect on January 1 that affects individual liability for sexual
harassment. Under the new legislation, a co-worker may be held individually
liable for sexually harassing another co-worker. Existing law already
imposes individual liability on supervisors who sexually harass someone
they supervise. The new California law now holds co-workers individually
liable for workplace harassment. Come learn more about this new law and
what it means. Ship News Progress report 2/19/01, R/V Melville Cruise Cook 06 - While in port in Guam, the HMR1 side-scan system was loaded aboard the R/V Melville and a 3-component magnetometer was installed aboard the ship. The R/V Melville left port on the cruise "Cook 06" at 0600Z on 10 February, sailing west into the Mariana backarc basin. At 0705Z the SeaBEAM system was turned on and we began deployment of the Hawaii MR1 side-scan sonar system. Deployment of HMR1 went smoothly and was completed by about 1010Z. To date we have completed 1690 nautical miles of survey. The side-scan sonar survey of the Mariana backarc region began with a westerly track across the spreading center to the deep grabens at the base of the West Mariana Ridge (the remnant arc) in order to define general abyssal hill fabric and collect magnetic and gravity data. Then we turned southeast to cross the basin again on a track perpendicular to abyssal hill fabric. We crossed the spreading ridge and turned southwest along the robust portion of the spreading ridge, using our 1997 R/V Moana Wave HMR1 survey as a guide. We then headed northwest to run several lines perpendicular to the spreading fabric, which is oriented northeast-southwest in this part of the basin. At 12̣45'North we began a series of east-west lines covering the western half of the backarc basin, to complete the 1997 HMR1 survey of the region. The current survey will cover the western extension of the backarc basin from the spreading center to the West Mariana Ridge (the remnant arc) and will include the western extension of the volcanic arc. We will also survey the highly deformed forearc southward to the Challenger Deep, providing the first side-scan sonar images of the deepest part of the Mariana Trench at a resolution high enough to make detailed geologic interpretations. To date, we have discovered the westernmost extent of the spreading in this portion of the basin. It ends in a seismically active basin at 12̣25'North, 141̣50'East. A seismically active portion of the western-bounding fault of the backarc basin (12̣25'North, 140̣50'East to 12̣ 35'North, 141̣45'East) forms the northern boundary of a 5400 meter deep graben (Becker Deep) west of the western tip of the spreading axis. The throw on this fault is over 3400 meters over much of its length. The graben is floored by low backscatter terrain, probably sedimented. There is one small volcanic edifice at the base of the graben-bounding fault within the graben and one larger composite cone in the western central part of the basin. At its western end the graben-bounding fault splays out into a series of fault traces arcing southward (concave to the southeast). Several volcanic centers have formed along the traces of the splayed faults at the western end of the graben. The shallow region south of the Becker Deep includes several volcanic edifices shallower than 2000 meters. One has a series of four apparent silicic domes aligned in an east-west chain. Another is a large volcanic center, apparently no longer active, that has a caldera at least eight kilometers in diameter. The shallow region of the survey area is highly faulted by traces oriented east-west and northeast-southwest. There is a strong magnetic anomaly associated with the east-west lineaments. We anticipate that the forearc southward from the regions already surveyed will show an increasing degree of deformation. If the style of deformation discovered in the inner trench slope survey in 1997 is continuous westward from 143̣East,as we suspect, then it involves the inner trench slope all the way to the Challenger Deep. We are using the Smith and Sandwell gravity derived bathymetry data set as a base map for this survey. The degree of agreement between the broad highs and lows on the Smith and Sandwell data set and the much more detailed HMR1 side-scan imagery is reasonably good. However, there are major volcanic features present in the side-scan data that do not appear at all on the gravity derived bathymetry and the trends of features such as the spreading ridge and the major faults are completely indiscernible. The tectonic interpretations we have been able to make are only possible with the higher resolution data. (Dr. Patricia Fryer , University of Hawaii)
R/V ROGER REVELLE
R/V MELVILLE
R/V NEW HORIZON
R/V ROBERT GORDON SPROUL
|
|||||||||||||||||||||||||||||||||||||||||||||||||