1998 Ocean Sciences Meeting Special Session Descriptions

GEOMAGNETISM AND PALEOMAGNETISM Section
OCEAN SCIENCES Section


Geomagnetism and Paleomagnetism (GP)

GP01   Geomagnetic Paleointensity
The conveners are soliciting papers on geomagnetic paleointensity, both relative and absolute, with special emphasis on spatial and temporal variability, relationship to directional (secular) variation, the influence of nongeomagnetic factors in perturbating the records, and its applications. As the number and spatial distribution of records improves, it becomes possible to distinguish regional and global (dipole) influences on the geomagnetic record and separate these from lithologic influences produced by environmental change.

Conveners: Joseph S. Stoner, Department of Geology, University of California, Davis, CA 95616 USA; Tel: +1-530-752-1861 (direct) and +1-530-752-0350 (department); Fax: +1-530-752-0951; E-mail: stoner@geology.ucdavis.edu and James E. T. Channel, Department of Geology, 1112 Turlington Hall, University of Florida, Gainesville, FL 32611 USA; Tel: +1-352-392-3658 (direct) and +1-352-392-2231 (department); Fax: +1-352-392-9294; E-mail: jetc@nersp.nerdc.ufl.edu

GP02   Magnetic Anomalies of the Antarctic
Since the IGY of 1957-1958, magnetic anomaly mapping has served as a principal tool for geologic studies of the Antarctic. Numerous magnetic surveys have been carried out by the international community. Many examples can be cited where these data have contributed fundamental insight on the geological properties of this remote and largely inaccessible region. Consequently, in 1993 resolutions from SCAR and IAGA lead to the establishment of the Antarctic Digital Magnetic Anomaly Project. ADMAP is an international effort whose goal is to produce a unified magnetic anomaly map and digital database for the area south of 60 degrees south latitude. This special session is primarily devoted to the acquisition and use of magnetic anomaly data for Antarctic geologic studies. In addition, the conveners will present the progress and problems of the international efforts of ADMAP. The roles of complementary geophysical, rock physical property and other data for enhancing geologic applications of south polar magnetic anomalies will also be considered. Oral and Poster contributions are welcomed from those concerned with geophysical and geological studies of the Antarctic.

Conveners: Ralph R.B. von Frese, Dept. of Geological Sciences and Byrd Polar Research Center, The Ohio State University, Columbia, OH 43210 USA; Tel: +1-614-292-5635; Fax: +1-614-292-7688; E-mail: vonfrese@osu.edu; and Peter Morris, Geoscience Division, British Antarctic Survey, High Cross, Madingley Road, Cambridge CB# OET, UK; Tel: 44-1223-251574; Fax: 44-1223-362616; E-mail: pmor@bas.ac.uk

GP03   Paleomagnetism and Tectonics
The conveners of this special session request contributions concerning the application of paleomagnetic results to solve tectonic problems from the global scale to the regional scale. Interdisciplinary studies using geological techniques in conjunction with paleomagnetic and rock magnetic results are particularly welcome.

Conveners: K.P. Kodama, Department of Earth and Environmental Sciences, 31 Williams Drive, Lehigh University, Bethlehem, PA 18015-3188 USA; Tel: +1-610-758-3663; Fax: +1-610-758-3667; E-mail: kpk0@lehigh.edu and L.L. Brown, Department of Geosciences, University of Massachusetts, Amherst MA 01003-5820 USA; Tel: +1-413-545-0245; Fax: +1-413-545-1200; E-mail: lbrown@geo.umass.edu

GP04   Environmental Magnetism
Lacustrine sediments, loess, paleosols, and soils provide archives for environmental change. Magnetic properties often reflect these changes but little information is available on the processes that affect the magnetic mineralogy. Contributions to this session are sought that deal with the effects of pedogenic, biogenic, and anthropogenic processes on the magnetic properties of natural archives. Interdisciplinary studies that integrate magnetic data with other information such as geochemical, pedological, or biological data are especially welcomed.

Convener: Ann Hirt, Institute of Geophysics, ETH Hoenggerberg, Zurich, CH 8093 Switzerland, E-mail: ann@mag.ig.erdw.ethz.ch


Ocean Sciences (OS)

OS01   Carbon Flux in the Water Column: Microbial Mediated POM-DOM
In the oceans, it is relatively easy to estimate the fixation of carbon by phytoplankton and the export of biogenic carbon (BC) from the euphotic zone, but processes that take place between production and export are still poorly understood. Export includes transfer to the food web and sinking of DOC and POC. Field studies and models have shown that: a significant fraction of BC is diverted to the microbial compartment of the food web, so that microbial mediated POM-DOM interactions are central to the overall BC flux; the export characteristics of pelagic ecosystems are largely determined by the size structure of primary production and the matching between primary production and grazing; and the type of BC export is regulated by hydrodynamics. Large uncertainties remain concerning the above mechanisms. This severely limits predictive abilities concerning exploited stocks and climate issues. Observational, experimental and theoretical contributions are invited which bring new understanding to the microbial and environmental interactions that regulate BC production, loss, food-web transfer, and deep export.

Conveners: Fereidoun Rassoulzadegan, Director of Ville Franche, Laboratoire d'Oceanographie Biologique et Ecologie du Plancton Marin, Universite Pierre & Marie Curie (Paris VI), CNRS - URA 2077 (SDU/INSU/OOV), Station Zoologique, BP 28, 06230 Villefranche-Sur-Mer, France, Phone: +33-04-93-76-38-21, Fax: +33-04-93-76-38-34 or 38-23, E-mail: rassoul@ccrv.obs-vlfr.fr or rassoul@ccr.jussieu.fr; and Louis Legendre, Departement de Biologie, Universite Laval, Quebec, QC G1K 7P4, Canada, Phone: +1-418-656-5788, Fax: +1-418-656-233, E-mail: louis.legendre@bio.ulaval.ca

OS02   Biogeochemical Cycles in the Southern Ocean
This session will focus on the recent advances in our understanding of the controls of biogeochemical cycles in the Southern Ocean, including: the role of irradiance and trace metals; coupling of event-scale meteorological forcing and seasonal scale features with surface layer production; fluxes of materials within and from the euphotic zone; processes controlling surface productivity; and food web effects on biogeochemical cycles. Studies of carbon, silicon, nitrogen, sulfur, and trace metal biogeochemistry are particularly invited. Contributions which address these topics over a wide range of scales are also encouraged.

Convener: Walker O. Smith, Jr., Department of Ecology and Evolutionary Biology, University of Tennessee, Knoxville, TN 37996, Phone: +1-423-974-5226/3065, Fax +1-423-974-3067, E-mail: wosmith@utkux.utcc.utk.edu

OS03   Organic Matters: A Tribute to the Life and Work of Peter M. Williams
The pioneering work of Peter M. Williams has inspired two generations of chemical oceanographers and marine geochemists. His list of firsts ranges from the first geochemical description of Amazon River water to the first radiocarbon analyses in marine organic matter. This session will highlight the contributions of Peter Williams through the work of those he has influenced and inspired from the 1960s to present. Topics will include dissolved and articulate organic matter cycling and fluxes, natural carbon isotopes as tracers of carbon cycling, sea surface microlayer studies, organic geochemistry of DOM and POM, atmospheric sources of carbon to the ocean, and abysso-pelagic coupling and the marine food web. The session will also draw on our changing understanding of marine organic and isotope geochemistry which has taken place over the last 30 years as a result of both analytical advances and elucidation of global ocean processes.

Conveners: James E. Bauer, School of Marine Science, College of William and Mary, P.O. Box 1346, Route 1208, Gloucester Point, VA 23062, Phone: +1-804-642-7136, Fax: +1-804-642-7250, E-mail: bauer@vims.edu; and Ellen Druffel, University of California, Irvine, Department of Earth System Science, Irvine, CA 92697-3100, Phone: +1-714-824-2116, Fax: +1-714-824-3256, E-mail: edruffel@uci.edu

OS04   Long-Term Time-Series Observations
This session is intended to illustrate and evaluate long-term observations of biological and related physical and chemical variables in the ocean. Long-term observations have gained in significance since the probability of global atmospheric warming has increased, and related changes in oceanic processes are expected. Long-term observations are essential to develop predictive models. We encourage not only presentations of results and subsequent discussions, but also modeling exercises to analyze and interpret the respective time-series. Long-term (decadal) observations, e.g., around the British Isles and off southern California, have provided invaluable information on responses of planktonic organisms and higher trophic levels in relation to seemingly physical forcing. Also, the JGOFS time series at Bermuda and Hawaii have yielded promising results. We hope that our proposed session will provide valuable information, discussion and stimulation towards improving and enhancing ocean long-term observations.

Conveners: G.-A. Paffenhofer, Skidaway Institute of Oceanography, University System of Georgia, 10 Ocean Science Circle, Savannah, Georgia 31411, Phone: +1-912-598-2489, Fax: +1-912-598-2310; and E.B. Sherr and B.F. Sherr, College of Oceans and Atmospheric Sciences, Oregon State University, Corvallis, OR 97331-5503, Phone: +1-503-737-4369, Fax: +1-503-737-2064, E-mail: sherrb@ucs.orst.edu

OS05   Groundwater Discharge and Biogeochemical Cycling
Groundwater discharge to surface waters is receiving increasing attention as better techniques are developed for quantifying this flow and assessing its importance to hydrologic and biogeochemical budgets. This source term will occur wherever a continental aquifer is hydraulically connected with coastal waters. The magnitude of groundwater inputs to the coastal zone varies based on upgradient forcing due to precipitation, infiltration rates, and aquifer permeability. Johannes (1980) was among the first to recognize the importance of groundwater discharge to the coastal environment. Groundwater inputs have been demonstrated to have a detrimental effect on coastal waters in some areas, while in other regions productivity may depend upon seepage-derived nutrients. Temporal variations in groundwater flow may also have seasonal controls on surface water biological productivity in regions where this source term provides important nutrients. With the increasing number of scientific studies devoted to the evaluation of groundwater discharge to the coastal ocean, the Ocean Sciences meeting will provide an excellent outlet for scientists to present their work. Topics that are essential to scientists working in this little-studied field would include tracer techniques for evaluating this flow, biogeochemical budgets where groundwater sources and sinks are considered, and novel approaches to quantifying the elemental and hydrologic budgets of coastal waters. This session will allow interactions between biogeochemists and hydrologists and compare our findings in this very young field.

Conveners: Jaye E. Cable, Department of Fisheries and Aquatic Sciences, 7922 NW 71st Street, University of Florida, Gainesville, Florida 32653, Phone: +1-353-392-9617, Fax: +1-352-846-1088, E-mail: jeyoung@nervm.nerdc.ufl.edu; Jeffrey Chanton, Department of Oceanography, Florida State University, Tallahassee, Florida 32306-3048, Phone: +1-904-644-7493, Fax: +1-904-644-2581, E-mail: jchanton@mailer.fsu.edu; and William Burnett, Department of Oceanography, Florida State University, Tallahassee, Florida 32306-3048, Phone: +1-904-644-7493, Fax: +1-904-644-2581, E-mail: wburnett@mailer.fsu.edu

OS06   Coastal Mixing and Optics
This session will explore the processes on the continental shelf and slope which contribute to mixing and affect the distribution of optical properties. Physical processes include, but are not limited to, atmospheric forcing, advection by mesoscale circulation, internal waves, near-inertial oscillations, tides and internal solitons. Emphasis will be placed on new understanding obtained through contemporaneous measurements of physical variables, optical properties and concentrations of optically active matter. Results from recent experiments, including the 1996-97 Coastal Mixing and Optics experiment and Primer experiment, conducted in the Middle Atlantic Bight south of Martha's Vineyard, will be presented. Contributions from other relevant investigations are certainly welcome. This will be an interdisciplinary session involving physics, optics, biology and geology.

Conveners: Jack Barth, College of Oceanic and Atmospheric Sciences, Oregon State University, 104 Ocean Admin. Bldg., Corvallis, OR 97331-5503, Phone: +1-541-737-1607, Fax: +1-541-737-2064, E-mail: barth@oce.orst.edu; and Collin Roesler, Dept. of Marine Sciences, University of Connecticut, 1084 Shennecossett Rd., Groton, CT 06340, Phone: +1-203-445-3440, Fax: +1-203-445-3484, E-mail: roesler@uconnvm.uconn.edu

OS07   Laboratory Experiments in Physical Oceanography
This session will be focused on recent advances in laboratory simulation of oceanic processes. Particular attention will be paid to the usefulness of laboratory models in obtaining physical insights into oceanic processes and in developing parameterizations for predictive models. Combined laboratory and numerical modeling efforts are also welcome. We successfully convened such sessions in 1992 and 1994 meetings, which resulted in overwhelming response from the oceanic community and publication of special issues in JGR (1993) and Dynamics of Atmosphere and Oceans (1995).

Conveners: H. J. S. Fernando and D. L. Boyer , Department of Mechanical and Aerospace Engineering, College of Engineering and Applied Science, Box 876106, Arizona State University, Tempe, AZ 85287-6106, Phone: +1-602-965-5602, Fax: +1-602-965-1384, E-mail: J.Fernando@asu.edu; E-mail: Don.Boyer@asu.edu

OS08   Mixing and Transport in Lakes: Physical Processes and Biological and Chemical Consequences
In the last decade field and laboratory experiments coupled with numerical modeling has led to new and more detailed understandings of the physical processes occurring in lakes. These insights have allowed the design of field experiments to better understand the connections between lake physics biology, and chemistry. This session will provide a format to present new results on physical processes occurring in lakes, but will also emphasize interdisciplinary studies designed to examine the consequences of transport and mixing on chemical and biological processes. The goal of this session is to promote interaction between the physical, chemical and biological sciences.

Conveners: Heidi Nepf, Parsons Laboratory, Dept. Civil/Environmental Engineering 48-425, MIT, Cambridge, MA 02139, Phone: +1-617-253-8622, Fax: +1-617-258-7009, E-mail: hmnepf@mit.edu; and Dr. Sally MacIntyre, Marine Science Institute, University of California, Santa Barbara, Santa Barbara, CA 93106-6150, Phone: +1-805-893-3951, Fax: +1-805-893-8062, E-mail: sally@seaotter.ucsb.edu

OS09   Biogeochemical Cycles of Trace Substances in the Atlantic Ocean
A number of investigators in the United States and elsewhere have been involved in a series of cruises in the Atlantic looking at the distribution of trace metals and other trace substances. The initial idea behind the study was to determine baseline levels of trace substances in the various water masses but most studies have gone far beyond that. This session seeks presentations on results of tracer work from cruises in the South and equatorial Atlantic as well as from studies in the North Atlantic. All investigators with data on the distribution of trace metals and other trace substances in the Atlantic are encouraged to participate.

Convener: Robert P. Mason, Chesapeake Biological Laboratory, University of Maryland, Center for Environmental Science, PO Box 38, Solomons, MD 20688, Phone: +1-410-326-7387, Fax: +1-410-326-7341, E-mail: mason@cbl.umces.edu

OS10   Diagenesis in Coastal and Marginal Sediments
Coastal and continental margin sediments play a central role in the global carbon balance, in the regeneration of nutrients to support primary production in overlying waters, and in the geochemical cycles of many elements. These sediments are characterized by spatial and temporal variability in rates of diagenesis and by a corresponding diversity in reaction and transport processes. This session is intended to highlight recent and developing observational and theoretical studies of diagenesis that allow researchers first to quantitatively assess the differences and similarities between the various types of coastal and marginal environments (i.e., littoral sediments, sand banks, muddy basins, slope sediments), and secondly to understand the reasons for the shifts in the predominant reaction and/or transport mechanisms across these environments.

Convener: Bernie Boudreau, Dept. of Oceanography, Dalhousie University, Halifax, NS B3H 4J1, Canada, Phone: +1-902-494-8895, Fax: +1-902-494-3877, E-mail: bernie@boudreau.ocean.dal.ca

OS11   Bioluminescence and Vision in Marine Environments
Bioluminescence is acknowledged to be dominantly a marine phenomenon and of sufficient adaptive significance to have independently evolved more than 10 times. While the many molecular mechanisms of marine bioluminescence have been intensively studied and while there are many examples of physiological control of bioluminescent systems and their individual adaptive significance, the fact remains that for such a ubiquitous and obvious phenomenon, bioluminescence has not been truly evaluated as a functional element in marine ecosystems. True enough, it has been shown to function in various alarm systems, in prey attraction, in counterillumination, and rarely in mating, but in not much else. Can this be the extent of the significance of a phenomenon that in the face of a high physiological cost is expressed at all depths in all oceans, in virtually every liter of sea water, virtually anytime? One wonders if we are missing something. This proposed session will be structured to encourage speculation on broader roles of bioluminescence in oceanic biology as well as presentation of recent research results of relevance. Since bioluminescence, at least behaviorally, is nothing if not seen, the session will include presentations on visual physiology and behavior relevant to bioluminescence.

Convener: James F. Case, Research Professor of Marine Biology, Department of Ecology, Evolution and Marine Biology Marine Science Institute, University of California, Santa Barbara, Santa Barbara, CA 93106, Phone: +1-805-893-2913/3639, Fax: +1-805-893-8062, E-mail: case@lifesci.ucsb.edu

OS12   Nitrogen Fixation in the Open Ocean: Biogeochemical, Evolutionary, Biological and Molecular Perspectives
Historically, the study of nitrogen fixation in the open ocean has been of interest, but assumed to be of relatively little importance in global carbon and nitrogen flux. Recently, re-evaluations of N budgets and biogeochemical fluxes have focused attention on nitrogen fixation, which is implicated in balancing an N-deficit in the North Atlantic and contributing substantially to new production in the Atlantic and Pacific oceans. An interdisciplinary problem with global implications, nitrogen fixation in the sea is currently being studied by biogeochemists and biologists using diverse approaches. Techniques ranging from basin-wide mass balances, to tracer studies and molecular biological approaches have been used to evaluate the relative importance of nitrogen fixation, the abundance and diversity of nitrogen fixing organisms, and the factors that limit nitrogen fixation rates. This multi-disciplinary approach is providing new perspectives on the role of nitrogen-fixing organisms in the dynamics of the sea. The goal of this session is to synthesize the interdisciplinary information and formulate new paradigms for our understanding of nitrogen fixation in the sea.

Conveners: Jonathan P. Zehr, Biology Dept. MRC 303, Renssellaer Polytechnic Institute, Troy, NY, Phone: +1-518-276-8386, Fax: +1-518-276-2162, E-mail: zehrj@rpi.edu; and Douglas G. Capone, Chesapeake Biological Laboratory, Univ. of Maryland, PO Box 38, Solomons, MD 20688-0038, Phone: +1-410-325-7250, Fax: +1-410-326-7341, E-mail: capone@cbl.cees.edu

OS13   The Arabian Sea: Responses to the Monsoons
The Arabian Sea Expedition was a multidisciplinary oceanographic and atmospheric study of the biogeochemical and physical responses of the ocean to monsoonal reversals. The unique properties of the Arabian Sea can be used to expand our general understanding of the carbon cycle, productivity and vertical flux of particulate material in the sea. Its principal unique feature is the regular oscillation in forcing (upwelling versus convection) which occurs under relatively constant illumination during the two monsoon seasons. The observational program in the Arabian Sea included measurements of atmospheric forcing, satellite/aircraft remote sensing, and the biological, chemical, and physical responses of the ocean. Contributions emphasizing interdisciplinary syntheses, new paradigms, seasonal/spatial resolution of the carbon cycle, and modeling are especially welcome. The 1994-1996 investigation of the Arabian Sea was international in scope; contributions from our international colleagues are strongly encouraged.

Conveners: Sharon Smith, University of Miami, RSMAS - MBF, 4600 Rickenbacker Causeway, Miami, FL 33149-1098, Phone: +1-305-361-4819, Fax: +1-305-361-4765, E-mail: ssmith2@rsmas.miami.edu; and Kenneth Brink, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, Phone: +1-508-457-2000, E-mail: kbrink@whoi.edu

OS14   The Origins of Life and the Evolution of Biogeochemical Cycles
The objective of this special session is to try to bring together both molecular evolutionary biologists working on phylogenetic relationships constructed from sequence analysis, and biogeochemists working on fossil and proxy records and biogeochemical models, together at an AGU/ASLO meeting. We feel that such a symposium is timely, especially with the invigorating effects of the Mars and Europa programs, the Lexen and vents programs, and the large numbers of papers published in recent months on the general topic. We would hope that the symposium would further serve as a bridge between AGU members interested in the origins of biogeochemical cycles and ASLO members with an interest in molecular evolution of microbes.

Conveners: Paul Falkowski, Environmental Biophysics and Molecular Biology Research Group, Oceanographic and Atmospheric Sciences Division, Brookhaven National Laboratory, Upton, NY 11973, Phone: +1-516-344-2961, Fax: +1-516-344-3246, E-mail: falkowsk@sun2.bnl; and Anna-Louise Reysenbach, Department of Biochemistry and Microbiology, Cook College, Rutgers University, New Brunswick, NJ 08903, Phone: +1-908-932-6555, ext. 373, E-mail: air@imcs.rutgers.edu

OS15   The Marine Carbon Biogeochemical Cycle: Regional and Global Perspectives From Canadian Northeast Pacific, U.S. JGOFS, and Related Programs
The previous decade has seen a number of major revisions in our interpretation and understanding of the marine biogeochemical cycle of carbon, with renewed emphasis on, for example, the role of trace metals, dissolved organic material and picoplankton. With the completion of the bulk of the Canadian and U.S. JGOFS field programs and transition to synthesis and modeling phases, a rich and unique field data set exists that can be used to explore and contrast the underlying mechanisms and biogeochemical dynamics across a diverse set of environments. This session will present the main findings of JGOFS-Canada field program in the Northeast Pacific, a region characterized by HNLC conditions off-shore, unusually productive winter period and strong biogeochemical gradients from coastal to open ocean. In addition to deep sediment trap and pelagic moorings, the program performed a suite of measurements ranging molecular to paleoceanographic along a seasonally occupied 1000 km section. Data synthesis and modeling abstracts also are sought that compare major elements of the carbon cycle (e.g., primary production, grazing, export production, remineralization) either across regions (e.g., North Atlantic, North Pacific, Equatorial Pacific and Arabian Sea) or on a global scale. Preference will be given to studies that utilize JGOFS data but results from non-JGOFS programs are also welcome.

Conveners: Scott Doney, Climate and Global Dynamics, National Center for Atmospheric Research, P.O. Box 3000, Boulder, CO 80307, Phone: +1-303-497-1639, Fax: +1-303-497-1700, E-mail: doney@ncar.ucar.edu; Bruce Johnson and Hugh Ducklow, College of William and Mary, School of Marine Science, P.O. Box 1346, Route 1208, Gloucester Point, VA 23062, Phone: +1-804-642-7180, Fax: +1-804-642-7097, E-mail: duck@vims.edu; and Dennis A. Hansell, Bermuda Biological Station for Research, St. Georges, GE-01, Bermuda, Phone: +1-441-297-1880, ext. 210, Fax: +1-441-297-8143, E-mail: dennis@bbsr.edu

OS16   Project TROPICS: Wet Tropical River Inputs to the Coastal Zone
The goal of this session is to present preliminary mechanisms and models of coastal ocean trapping, by passing, and cycling of solutes and sediments from a wet tropical area of high relief (Papua New Guinea and Irian Jaya) on contrasting broad and narrow coastal shelves. Physical, geological, and chemical budgets of wet tropical riverine inputs to the coastal ocean will be presented. Contributions are encouraged from other studies of river-ocean interaction in wet tropical environments. Project TROPICS is described in http://www.aims.gov.au/pages/tropics.html

Conveners: Gregg J. Brunskill, Principal Research Scientist, Biogeochemistry and Coastal Sedimentation, Australian Institute of Marine Science, PMB No. 3, Townsville, Queensland 4810 Australia, Phone: 077-534-218/211, Fax: 077-725-852, E-mail: g.brunskill@aims.gov.au; and Charles Nittrouer, SUNY at Stony Brook, Marine Science Research Center, Stony Brook, NY 11794-5000, Phone: +1-516-632-8652, Fax: +1-516-632-8762, E-mail: cnittrouer@ccmail.sunysb.edu

OS17   Deep Convection in the Labrador Sea
During the winter of 1997 an extensive survey of the Labrador Sea was accomplished to study the process of deep convection. The field work was preceded by modeling and laboratory experiments. This session will involve papers on the ocean and atmospheric observations during the survey and other studies that further our understanding of the deep convection process.

Convener: Manuel (Manny) Fiadeiro, Program Officer, ONR Code 322 OM, Ballston Tower One, 800 North Quincy Street, Arlington, VA 22217-5660, Phone: +1-703-696-4441, Fax: +1-703-696-3390, E-mail: fiadeim@onr.navy.mil

OS18   Dynamics of the Ocean Surface Mixed Layer
New and improved instruments, deployed in the last decade or so, have led to an unprecedented ability to observe detailed features in the ocean surface mixed layer. These new observational capabilities, coupled with theoretical modeling and simulation, promise to result in an unprecedented understanding of the three-dimensional, time-dependent dynamics of the mixed layer. Mixing processes in the surface boundary layer are strongly affected by surface waves -- including wave breaking and wind/wave driven Langmuir circulation -- as well as turbulence generated by processes not requiring an air/water interface. A number of major studies have been focused on the surface mixed layer, including the recently concluded Marine Boundary Layer (MBL) program. This is a good time to bring together this work and to begin to consolidate the information and ideas obtained. Contributions are solicited dealing with all physical processes affecting mixing in the surface layer of the ocean, including field and laboratory experiments, modeling, and simulation.

Convener: Sidney Leibovich, Samuel B. Eckert Professor of Mechanical and Aerospace Engineering, 248 Upson Hall, Cornell University, Ithaca, New York 14853, Phone: +1-607-255-3477, Fax: +1-607-255-1222, E-mail: SL23@cornell.edu

OS19   Use of Molecular Approaches to Study Phytoplankton Physiology and
The goal of this session is to bring together information on recent advances in understanding physiological and ecological aspects of phytoplankton in marine and freshwater ecosystems obtained using molecular approaches. Of particular interest are insights that one would probably not be able to acquire with traditional methods. In addition, this session would serve as a platform where discussion can be made regarding the potential of the molecular approaches, in a broad sense including immunological, cytological, and molecular biological techniques, in studying phytoplankton population dynamics and interaction with ambient environment (including aquatic and atmospheric). Although the trend of using molecular techniques in phytoplankton ecological studies is moving forward fairly fast, information is rather scattered and fragmented. This session is intended to put the puzzle pieces into a model picture, albeit not possibly complete yet. Through this session, researchers will see what the rapidly innovative techniques can do to help them gain deeper insights or address problems that have been difficult with traditional methods.

Conveners: Senjie Lin and Edward J. Carpenter, Marine Sciences Research Center, SUNY, Stony Brook, NY 11794, Phone: +1-516-632-8697, Fax: +1-516-632-8820, E-mail: lin@sbms01.msrc.sunysb.edu; ecarpent@ccmail.sunysb.edu

OS20   Oceanography of the Chesapeake-Hatteras Continental Shelf
The aim of this session is to bring together researchers to present their results to date from a number of recent major studies conducted over the continental shelf between Chesapeake Bay and Cape Hatteras. The regional focus will allow a meaningful exchange between researchers working on related-but-different key issues in continental shelf oceanography. It is anticipated that this collection of major research studies will make a large contribution to our understanding of continental shelves in general. Topics include cross-shore exchange over the inner shelf, export from the shelf at Hatteras, pulsed intrusion of low-salinity Chesapeake Bay water, heat budget over the shelf, wind-driven upwelling/downwelling, larval dispersal, carbon cycles/storage/fluxes, ecosystem studies, fisheries studies, biogeochemical cycles, bottom boundary layer dynamics, nearshore dynamics, sediment transport, estuary-ocean exchange, optics and remote sensing, amongst other topics. Attention given to the shoreward boundary (surf-zone, estuary) and oceanward boundary (Gulf Stream, slope) will be given in the context of their importance to the oceanography of the continental shelf itself.

Convener: John L. Largier, Department Environmental and Geographical Science, University of Cape Town, Rondebosch, 7701, South Africa, Phone: 27-21-650-2863, Fax: 27-21-650-3791, E-mail: largier@enviro.uct.ac.za

OS21   Climate Variability, Fisheries Resources, and the Dynamics of Plankton Populations in the Georges Bank/Gulf of Maine/Scotian Shelf Region of the Northwest Atlantic
Recent studies of the physics and biology of North Atlantic shelf seas and banks, and their interaction with the oceanic region have been designed in part to address the question of how global climate change may affect the distribution, abundance, and production of animals in the sea. They are centered on the dynamics of zooplankton and larval fish populations in the respective areas. The linkages between climate variability and the physical and biological processes which control the dynamics of these animal populations are becoming apparent. The purpose of this session is to provide a forum for presentation of studies which focus on the integrated physical and biological studies of the rate processes, spatial and temporal distributions of the physical and biological properties of the region, and prognostic and assimilative modeling efforts which utilize the developing base of information to provide an integrative view of the biological and physical dynamics of the regions.

Conveners: Peter H. Wiebe, Woods Hole Oceanographic Institution, Woods Hole, MA, 02543, Phone: +1-508-289-2313, Fax: +1-508-457-2169, E-mail: pwiebe@whoi.edu; David Mountain, NMFS, Woods Hole, MA, 02543, Phone: +1-508-548-5123, Fax: +1-508-548-5124, E-mail: dmountai@whsun1.wh.whoi.edu; Robert Beardsley, Woods Hole Oceanographic Institution, Woods Hole, MA 02543, Phone: +1-508-289-2536, Fax: +1-508-457-2181, E-mail: rbeardsley@whoi.edu; and Peter C. Smith, Bedford Institute of Oceanography, Dartmouth, N.S., Canada, B2Y 4A2, Phone: +1-902-4263474, Fax: +1-902-426-7827, E-mail: pc_smith@bionet.bio.dfo.ca

OS22   Decadal Scale Variability in Physical Forcing and Biological Response in the Gulf of Alaska and California Current
This interdisciplinary session solicits papers that discuss low-frequency fluctuations in oceanographic variables in the Northeast Pacific. We encourage papers that discuss results of physical models (basin and regional scale), coupled physical-biological models, process-oriented research, fisheries issues, and retrospective analysis of historical physical or biological data sets as well as paleoceanographic data sets from the Gulf of Alaska and/or California Current region. Although we anticipate hearing much about correlations among variables, we will urge all authors as well as the audience to share their views on physical and biological mechanisms that might explain correlations. Finally, we will ask each author to discuss evidence for/against any physical coupling and/or biological response between the Gulf of Alaska and California Current. If a coupled response is observed, is such a response in phase or out of phase?

Conveners: Frank Schwing, NOAA/NMFS, Pacific Fisheries Environmental Group, 1352 Lighthouse Ave., Pacific Grove, CA 93950-2097, Phone: +1-408-648-9034, E-mail: fschwing@pfeg.noaa.gov; Bill Peterson, Hatfield Marine Science Center, NOAA/NMFS, 2030 Marine Science Drive, Newport, OR 97365-5296, Phone: +1-541-867-0201, E-mail: bpeterso@sable.nwfsc-hc.noaa.gov; and Hal Batchelder; U.S. GLOBEC Office, Department of Integrative Biology, University of California, Berkeley, CA 94720-3140; Phone: +1-510-642-7452, E-mail: halbatch@socrates.berkeley.edu

OS23   Event Sedimentation in the Coastal Ocean
The episodic nature of sedimentation on continental margins is now widely recognized. Diverse forcing agents, which include wind-driven storms, river floods and tsunamis, can result in the rapid redistribution of large volumes of sediment and associated constituents (e.g., organic carbon, macrofauna) which accumulate as sedimentologically and/or geochemically distinct "event deposits." These deposits, and their subsequent evolution, have wide-ranging and important geological, geochemical and biological ramifications. Contributions are invited that address the forcing, modification and significance of event sedimentation on continental margins.

Conveners: R. A. Wheatcroft and W. R. Geyer, WHOI, Woods Hole, MA 02543, Phone: +1-508-289-3427/2968, E-mail: raw@tides.whoi.edu; rgeyer@whoi.edu

OS24   Theory and Modeling of Ocean Circulation, Data Assimilation and Interdisciplinary Applications: A Tribute to Allan R. Robinson
Professor Allan R. Robinson's career has advanced ocean research in geophysical fluid dynamics, regional modeling, data assimilation and interdisciplinary prediction applications. Field estimation using regional assimilative models has become an important component of physical, biological, and chemical oceanographic studies. Multi-platform observational networks, couple inter-disciplinary models, and new data assimilation techniques are being developed and applied throughout ocean sciences. This session will bring together scientists with interests in GFD, regional modeling, data assimilation and prediction, and interdisciplinary applications to honor Professor Robinson for his contributions to our field. All contributions in these areas are welcome.

Conveners: George Philander, Princeton University, AOS Program Forrestal Campus, PO Box CN 710, Princeton, NJ 08544-0710, Phone: +1-609-258-5683, Fax: +1-609-258-2850, E-mail: gphlder@splash.princeton.edu; Dr. Scott Glenn, Rutgers University, Inst. of Marine and Coastal Sciences, Dubley Rd., New Brunswick, NJ 08903-0231, Phone: +1-908-932-6555, Fax: +1-908-932-1821, E-mail: glenn@caribbean.rutgers.edu; and Dr. Leonard Walstad, Horn Point Laboratory, Center for Environmental Science, University System of Maryland, 2020 Horns Point Rd., PO Box 775, Cambridge, MD 21613-0775, Phone: +1-410-221-8477, Fax: +1-410-221-8490, E-mail: walstad@hpl.umces.edu

OS25   Thin Layers: A Critical Scale for Migrating Plankton?
Application of new sensors and deployment strategies has shown that phytoplankton and zooplankton can form intense patches that have vertical scales of tens of centimeters up to a few meters, yet horizontal scales of up to a few kilometers. Initial studies suggest these thin layers may represent an undersampled but critical scale for migrating plankton. This session will focus on interdisciplinary studies of (1) the mechanisms leading to the formation, maintenance and dissipation of patches on these scales, (2) their effects on vertical migration patterns of higher trophic levels, (3) the extent that higher trophic levels exploit them as concentrated food resources, and (4) the impacts of such structures on the optical and acoustic properties of coastal waters. Given the difficulty of detecting such structures using conventional techniques, we also seek papers that describe new techniques for quantifying them and the underlying structures and processes. We intend this to be a highly interdisciplinary session.

Conveners: Percy L. Donaghay, University of Rhode Island, Graduate School of Oceanography, Narragansett, RI 02882, Phone: +1-401-874-8944, Fax: +1-401-874-6240, E-mail: donaghay@gsosun1.gso.uri.edu; D. Van Holliday, Tracor Applied Sciences, 4669 Murphy Canyon Road, Suite 102, San Diego, CA 92123-4333, Phone: +1-619-268-9777, Fax: +1-619- 268-9775, E-mail: holliday@galileo.tracor.com

OS26   POSTER: Recent Advances in Ocean and Fresh Water Science Instrumentation
Progress in ocean and aquatic sciences is often coupled to the development of new instrumentation. The applications for new instrumentation may also extend beyond its immediately intended use. This poster session provides an opportunity for scientists, engineers, and students to present newly developed instrumentation or technology that would be of interest to a diverse audience of ocean and fresh water science investigators. It is also an opportunity to fully describe the instrumentation used to collect data and research results presented elsewhere at the Meeting.

Convener: H. Lawrence Clark, Oceanographic Technology Program, Room 725, National Science Foundation, 4201 Wilson Blvd., Arlington, VA 22230, Phone: +1-703-306-1584, Fax: +1-703-306-0390, E-mail: hclark@nsf.gov

OS27   POSTER: Recent Developments in New Tools (Satellite Imagery, General Ocean Circulation and Physical-biological Models, Altimetry) and Their Applications to Fisheries Issues
New oceanographic tools, including ocean circulation models, physical-biological models, and TOPEX/POSEIDON satellite altimetry, appear to offer great promise to address population dynamics of fisheries resources and protected species. For example, these tools may describe the dynamics of fronts and eddies which could be important forage habitat or may be used to evaluate the role of physical transport on recruitment dynamics. However many fisheries scientists and marine biologists are not familiar with the appropriate applications of these new tools and many physical oceanographers, developing or evaluating these tools, are not familiar with the needs of potential group of users. We propose an interdisciplinary poster session to bring together ocean modellers, satellite oceanographers and fisheries scientists to discuss recent developments in these tools and experiences in their applications to fisheries issues. Posters are solicited in two areas: 1) results on developments and evaluations of ocean circulation models, physical-biological models, and satellite oceanography; and 2) results from applications of these tools to describe marine resource dynamics.

Conveners: Eileen Hofmann, CCPO, Crittenton Hall, Old Dominion University, 768 W. 52nd Street, Norfolk, VA 23259, Phone: +1-804-683-5334, Fax: +1-804-663-5530, E-mail: hofmann@ccpo.odu.edu; and Jeffrey Polovina, Honolulu Lab, SWFSC, NMFS, 2570 Dole St., Honolulu, HI 96822-2396, Phone: +1-808-943-1218, Fax: +1-808-943-1290, E-mail: jpolovin@honlab.nmfs.hawaii.edu

OS28   EDUCATION: Ocean Research in the Service of Education
Both the activity of ocean research and the findings obtained by it are being used to enhance learning about the ocean, the methods of science, and the societal significance of scientific research. Citizens should be offered the education necessary to understand ocean processes sufficiently to make informed environmental and economic decisions and to appreciate the societal significance of ocean research. Papers in this session will discuss the use of ocean research in the classroom for K-12 and undergraduate science classes and in informal education of the general public.

Conveners: Nancy Marcus, Department of Oceanography, Florida State University, Tallahassee, FL 32306, Phone: +1-904-644-5498, Fax: +1-904-644-2581, E-mail: marcus@ocean.fsu.edu; and Martha R. Scott, Department of Oceanography, Texas A&M University, College Station, TX 77843, Phone: +1-409-845-5179, Fax: +1-409-845-6331, E-mail: mscott@astra.tamu.edu

OS29   EDUCATION: Integrating Science in the Curriculum, or "Not Yours, Not Mine, But Our" Course
Although much is made of the need for "interdisciplinary" research, particularly in the ocean sciences, students are commonly taught content and skills by subdisciplines. What they learn is too often compartmentalized into that subdiscipline and not remembered when needed in the next subdiscipline course. By working together in various ways, faculty can integrate science in the curriculum with the goal of enhancing student learning across disciplines. Assessment procedures should be embedded in the curriculum to evaluate the success of the efforts. Successful examples of science integration will be discussed.

Conveners: Dean A. McManus, School of Oceanography, University of Washington, Box 357940, Seattle, WA 98195-7940, Phone: +1-206-543-0587, Fax: +1-206-543-6073, E-mail: mcmanus@ocean.washington.edu; and David F. Brakke, College of Natural and Mathematical Sciences, Towson University, Towson, MD 21252, Phone: +1-410-830-2121, Fax: +1-410-830-2604, E-mail: dbrakke@towson.edu


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