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06. Nearshore and Coastal Regions

006: Advances in Coastal Ocean Modeling, Analysis, and Prediction: Schedule

Organizers: Villy Kourafalou, University of Miami/RSMAS, vkourafalou@rsmas.miami.edu; Pierre De Mey, LEGOS - Laboratoire d’’Etudes en GÈophysique et OcÈanographie Spatiales, demey-redir@neyak.org; Ruoying He, North Carolina State University, rhe@ncsu.edu; Alex Kurapov, Oregon State University, kurapov@coas.oregonstate.edu

Downscaling and extending predictability in coastal and shelf seas are two of the objectives of the GODAE OceanView (GOV) initiative through its Coastal Ocean and Shelf Seas Task Team (COSSTT). Broad participation and international coordination of interdisciplinary coastal and shelf models nested in data assimilative large scale models is a COSSTT priority. This session will provide a forum for multi-scale hydrodynamic modeling and observational studies that aim toward scientific validation, prediction and operational applications of numerical models in coastal and shelf seas, leading to new understanding of multiscale nonlinear ocean processes. Applications of nested models, such as the influence of physical processes on ecosystem dynamics and interdisciplinary coastal predictions are also welcome. The session will promote the discussion of methodologies that lead to reliable coastal forecasts (such as data assimilation, error analysis, influence of nesting, resolution and forcing), Observing System Simulation Experiments and the impact of sustainable, integrated modeling and observational networks that connect local, regional and global scales. Applications on lessons learned from prediction and/or hindcasts during the 2010 Deepwater Horizon oil spill in the Gulf of Mexico and the 2011 tsunami in Japan are particularly welcome. (2, 6, 13, 14)

014: Ocean Deoxygenation and Coastal Hypoxia in a Changing World: Schedule

Organizers: Nancy N. Rabalais, Louisiana Universities Marine Consortium, nrabalais@lumcon.edu; Daniel Conley, GeoBiosphere Centre, Department of Geology, Lund University, daniel.conley@geol.lu.se; Francis Chan, Oregon State University, chanft@science.oregonstate.edu

The interaction of ocean warming and human activities in watersheds is increasing the occurrence, frequency and severity of oxygen deficiency in oceanic and coastal waters. Climate change is warming ocean waters and thereby reducing the solubility of oxygen and its availability to aerobic organisms. Human alterations to hydrology and nutrient flux further aggravate oxygen depletion in coastal waters. These interactions may in fact result in positive influences to aquatic ecosystems, but the overall result is expected to be negative impacts for oceanic waters, including expansion of oxygen minimum zones and coastal hypoxia. In addition, indications are that increases in deoxygenation will exacerbate ocean acidification. There is little doubt that deoxygenation is increasing around the globe, but these observations result primarily from new reports of oxygen deficiency in the literature. The long-term records for ocean deoxygenation and coastal hypoxia are limited, but these data with correlative information can tell us much about changing conditions and changes in oxygen concentrations in marine waters. This session focuses on long-term data for changing oxygen dynamics in marine waters, both hydrographic data sets and paleoindicators for decreasing oxygen concentrations with their ancillary data that point to causal relationships. (4 ,6, 8, 9)

015: Nearshore Processes: Schedule

Organizers: Jennifer L. Irish, Virginia Tech, jirish@vt.edu; Alex Apotsos, U.S. Geological Survey, aapotsos@gmail.com

Geomorphologically diverse nearshore regions are continuously evolving due to wind, waves, and varying water levels. These long-term processes are punctuated by devastating coastal storms and tsunamis that quickly reshape coastal areas. In this session we invite abstracts that focus on the dynamics of waves, tides, currents, turbulence, and sediment transport from the beach face to the shelf break along sandy, muddy or mixed sedimentary coasts and inlets. Topics of particular interest include: 1) sediment transport, 2) waves and wave-driven circulation, 3) coastal morphodynamics, 4) swash zone processes, 5) nearshore turbulence, and 6) extreme coastal events. Presentations concerning in situ and remote sensing observations, laboratory experimentation, theory, modeling, and model-data assimilation are encouraged. (1, 2, 6)

028: Comparing Physical Processes in Large Lakes and Shallow Inland/Marginal Seas: Schedule

Organizers: Dmitry Beletsky, University of Michigan, beletsky@umich.edu; Chin Wu, University of Wisconsin-Madison, chinwu@engr.wisc.edu; Cary Troy, Purdue University, troy@purdue.edu; Ram Rao, National Water Research Institute, Environment Canada, ram.yerubandi@ec.gc.ca

This session’s focus is on comparative analysis of physical limnology and oceanography of large lakes and shallow (less than 1000 m deep) inland and marginal seas. Papers are solicited dealing with modeling, experimental and laboratory studies of physical processes (waves, currents, turbulence, stratification, ice, sediment transport, etc.) in water bodies dynamically similar to large lakes (where Earth rotation effects are important). Examples include large lakes such as Lake Geneva, the Great Lakes, the Caspian Sea, the Baltic Sea, the Sea of Okhotsk, etc. (2, 5, 6)

029: Sediment Transport and Deposition in Lakes, Estuaries, and Shallow Shelves: Schedule

Organizers: Nathan Hawley, Great Lakes Environmental Research Laboratory, nathan.hawley@noaa.gov; Courtney K. Harris, Virginia Institute of Marine Science, ckharris@vims.edu; Lawrence P. Sanford, University of Maryland Center for Environmental Science, lsanford@umces.edu

The physical characteristics of many lakes, estuaries, and shallow shelves - relatively small volumes of water, shallow water depths, relatively long coastlines, and high loadings from rivers and shoreline sources - make them particularly susceptible to environmental degradation. In recent years human population pressures have increased demands on these regions, and in many cases have resulted in an increase in the frequency and severity of problems such as hypoxia, harmful algal blooms, excess turbidity, and high rates of sedimentation. Climate change is expected to add stressors such as increased runoff, storminess, and sea level rise. The importance of sediment transport has become increasingly recognized since not only are many nutrients and anthropogenic pollutants transported by sediments, but sediment-induced turbidity also may limit the amount of light available for photosynthesis and visual predation. Recent advances in theoretical, observational, and numerical modeling have led to increased understanding of sediment dynamics in these complex systems. The session encourages submissions covering any aspect of sediment transport and depositional processes in lakes, estuaries, and shallow shelves, including field observations, laboratory experiments, and modeling studies. Studies of physical forcing, sedimentary response, different modes of transport, biogeochemical feedbacks with sediments, and particle behavior are all welcomed. (1, 2, 5, 6)

031: Biogeochemical Cycles of Continental Margins: Drivers and Impacts: Schedule

Organizers: Antonio Mannino, NASA Goddard Space Flight Center, antonio.mannino@nasa.gov; Cécile Cathalot, Netherlands Institute for Ecology - Centre for Estuarine and Marine Ecology, C.Cathalot@nioo.knaw.nl; Marjorie Friedrichs, Virginia Institute of Marine Science, marjy@vims.edu; Peter Griffith, NASA GSFC, peter.c.griffith@nasa.gov; Antonio Mannino, NASA Goddard Space Flight Center, antonio.mannino@nasa.gov

Biogeochemical cycling in the coastal zone is complex and poorly quantified, both on the mean and in terms of variability in response to a myriad of natural and anthropogenic drivers. Such complexity leads to substantial uncertainty in global and regional carbon budgets This session focuses on recent progress in understanding coastal biogeochemical cycling, with emphasis on linkages to terrestrial and global ocean cycles. Two areas of research are particularly sought: (1) impacts of climate variability, extreme events (e.g. floods, resuspension), and land-cover/land-use change on the transport and cycling of carbon, nitrogen and other elements to and within the coastal ocean margins; (2) synthesis and modeling work that leads to improved coastal zone carbon budgets at scales of global relevance. This special session invites investigators to present and discuss recent progress in coastal systems biogeochemistry from observational, experimental, and modeling perspectives. (5, 6, 8, 9, 18)

033: Oceanographic Processes at the Antarctic Continental Margins: Schedule

Organizers: Robin Muench, Earth & Space Research Seattle, rmuench@esr.org; Robin Muench, Earth & Space Research Seattle, rmuench@esr.org; Eileen Hofmann, Old Dominion University, hofmann@ccpo.odu.edu; Anna Wahlin, University of Gothenburg, anna.wahlin@gu.se; Laurie Padman, Earth & Space Research Corvallis, padman@esr.org

The oceans encircling Antarctica experience vigorous exchanges between ocean, ice and atmosphere, with significant consequences for global ocean and climate states. Water mass modification through cooling, sea ice formation and mixing drives a global deep ocean overturning circulation and impacts the mass balance of the Antarctic Ice Sheet by influencing the stability of ice shelves that buttress glaciers and ice streams. Upwelling at the shelf break provides nutrients that fuel primary production, contributing to a rich ecosystem with a potentially significant impact on the oceanic carbon budget through sequestration. The session will focus on physical and biogeochemical processes in the circum-Antarctic continental margin. Results from field observations, models and remote sensing are welcome. Topics of interest include, but are not limited to: shelf, slope and coastal circulation and mixing; impacts of shelf-slope processes on deep and bottom water formation and on mass balance of ice shelves; atmospheric impacts on physical systems, including the sea ice cover, and on biological systems; and the relationships between physical processes and regional marine ecosystems. Discussions of the potential impacts of climate change on these various systems are particularly welcome. The session will include both oral and poster presentations. (2, 3, 4, 6, 7, 8, 18)

034: Long Waves on Continental Shelves: Schedule

Organizers: Alexander Yankovsky, University of South Carolina, ayankovsky@geol.sc.edu; Andrew Kennedy, University of Notre Dame, andrew.kennedy@nd.edu

Continental shelves cause long wave amplification, act as a waveguide for trapped wave modes, promote energy conversion from barotropic to baroclinic modes, enhance long wave dissipation, and transport energy and momentum far from their generation region. We invite papers which delineate these processes on a wide range of scales including both subinertial and superinertial frequencies. Of particular interest are long waves generated by atmospheric forcing (including extreme forcing events) and tides. Ideally we would like to achieve a combination of theoretical, modeling, laboratory and observational studies. Interdisciplinary studies relating long wave dynamics with biological and geological processes are encouraged. (2, 6)

038: Changing Biogeochemistry and Ecosystems in the Western North Pacific Continental Margins Under Climate Change and Anthropogenic Forcing: Schedule

Organizers: Kon-Kee Liu, National Central University, kkliu@ncu.edu.tw; Minhan Dai, Xiamen University, mdai@xmu.edu.cn; Gwo-Ching Gong, National Taiwan Ocean University, gcgong@ntou.edu.tw; Chih-Hau Hsieh, National Taiwan University, chsieh@ntu.edu.tw; Hiroaki Saito, Fisheries Research Agency, hsaito@affrc.go.jp

Continental margins in the western north Pacific are bordered by the worldís most densely populated coastal communities and receive runoffs from very large rivers. The large anthropogenic pressure threatens diverse coastal marine ecosystems, as demonstrated by the four-fold increase of Changjiang nitrogen loading in the past 30 years that possibly contributes to the increasing hypoxia in the East China Sea. On the other hand, increasing impounding of freshwater for irrigation purposes may reduce riverine load of dissolved silicate, altering discharge patterns, nutrient elemental ratios and phytoplankton community downstream. Increasing frequencies of widespread flooding since the beginning of the 20th century, which is attributable to the accelerated global hydrological cycle, may also cause marked changes in coastal oceans. As continental margins sustain arguably the most productive ecosystems and most active biogeochemical processes in the earth system, the stressed ecosystems may threaten the livelihood of a large human population. Moreover, the altered biogeochemical cycles may cause many unknown feedbacks that exacerbate effects of climate change. We invite contributions on interactions between physical-biogeochemical processes and the ecosystem in the west Pacific and consequences of human perturbations on these systems, as revealed by field observations, remote sensing, or modeling studies. (6, 8, 9, 18)

050: Linking the Optical and Chemical Properties of Dissolved Organic Matter in Natural Waters: Schedule

Organizers: Christopher Osburn, North Carolina State University, closburn@ncsu.edu; Colin Stedmon, Department of Marine Ecology, National Environmental Research Institute, University of Aarhus, cst@dmu.dk; Robert G.M. Spencer, Woods Hole Research Center, rspencer@whrc.org

A paradigm in chemical oceanography is the remarkable similarity in the optical and chemical properties of both marine dissolved organic matter (DOM) and substantially degraded riverine DOM. Recently, in the oceanographic literature, a number of articles have reported on using combined optical and chemical techniques to investigate the sources and cycling of DOM in the coastal and open ocean water columns and in sedimentary pore waters. However, studies that calibrate the optical properties of DOM with geochemical measurements are few and far between in the literature. In addition, studies that attempt to resolve these properties with respect to rates of riverine DOM photochemical and biological degradation are also lacking. This session will provide a forum for scientists to exchange ideas and demonstrate progress in linking data-rich spectroscopic techniques, such as excitation-emission matrix fluorescence (EEMs) and spectral absorption, to geochemical measurements of DOM, such as elemental ratios, nutrients, stable isotopes, biomarkers, and structural characterizations arising from new developments in analytical techniques such as mass spectrometry and nuclear magnetic resonance spectroscopy. (4, 6, 12)

056: Biology and Chemistry in a High CO2 World: Schedule

Organizers: Alexandra Rao, Vrije Universiteit Brussel, a.rao@nioo.knaw.nl; Christian Wild, Leibniz Center for Tropical Marine Ecology (ZMT), christian.wild@zmt-bremen.de; Matthew Charette, Woods Hole Oceanographic Institution, mcharette@whoi.edu, Frank Melzner, IFM-GEOMAR Kiel, Germany, fmelzner@ifm-geomar.de, Sam Dupont, University of Gˆteborg, Sweden, sam.dupont@marecol.gu.se, Rainer Kiko, IFM-GEOMAR Kiel, Germany, rkiko@ifm-geomar.de, Brad Seibel, University of Rhode Island, USA, seibel@uri.edu

Recent research has demonstrated that the release of fossil fuel CO2 to the atmosphere leads to ocean acidification, which is predicted to have a strong adverse effect on marine ecosystems. At the same time, our perceptions of the benthic boundary layer continue to evolve, encompassing a complex interplay of physical, chemical and biological processes in sediments. The links between sediments and ocean acidification are not unidirectional, and the emerging model suggests that numerous feedbacks may impact future changes in ocean chemistry and benthic ecosystems on multiple time scales. Key players include (i) biological communities, from coral reefs to microorganisms and macrofauna in deep and shallow sediments, whose activities have wide-ranging implications for benthic ecology, elemental cycling, and commercial fisheries, (ii) transport and reaction in deep sea and continental margin sediments, including the impact of tides, waves, and bottom currents in permeable sands, and (iii) submarine groundwater discharge, carbonate and pH dynamics in subterranean estuaries. This session aims to bring together experts in measurements and modeling of ocean acidification and benthic processes to address methodological and conceptual challenges pertaining to studies at the frontier between these disciplines. We encourage multi-disciplinary contributions. (3, 4, 6, 8)

061: Coastal Oceanography through Integrated Data Analysis: Schedule

Organizers: Yonggang Liu, University of South Florida, yliu@marine.usf.edu; Ryan M. McCabe, University of Washington, rmccabe@ocean.washington.edu

With increasing coastal ocean observation systems and independent projects collecting various data streams, our understanding of continental shelf processes has advanced significantly in recent years. This special session is an opportunity to showcase new scientific results obtained from these sustained or process-oriented coastal observations including, for example, moored current meters, HF radars, AUVs, gliders, drifters, profilers, tide gauges, C-MAN stations, satellites, and other remotely-sensed data. Progress on a variety of coastal topics such as along- and cross-shelf circulation and exchange, upwelling and downwelling dynamics, buoyancy fluxes, local and remote forcing, estuary-plume-shelf systems, offshore current/eddy intrusions, topographic influences, and their downstream impacts are all encouraged. Noting that no single instrument is enough to fully capture dynamic coastal ocean processes, new insights from integrated data analyses covering multiple scales by combing two or more types of data are particularly encouraged. Numerical model-assisted data analyses and accompanying insights are also welcome. (2, 6, 13)

080: Coastal Connections: Advances in the Understanding of the Interaction of Fluvial and Marine Systems: Schedule

Organizers: Katie Farnsworth, Indiana University of Pennsylvania, kfarns@iup.edu; Paul Liu, North Carolina State University, jpliu@ncsu.edu; Kehui Xu, Coastal Carolina University, kxu@coastal.edu; James Syvitski, University of Colorado at Boulder, james.syvitski@colorado.edu

Understanding the complex interactions in the coastal zone requires a focus on atmospheric, fluvial and marine processes as well as increasing anthropogenic influences. There has been tremendous growth in our understanding of the flux and fate of water, sediment and dissolved solids from land into the coastal ocean due to an emphasis on collaborative work between both modelers and field researchers. Much exciting and challenging work remains to link the sediment (both siliciclastic and carbonate) origin, transport and depositional processes and the responses at multiple temporal and spatial scales. In this session we hope to bring together researchers in terrestrial and marine sciences studying the coastal zone in diverse regions around the world. Study areas are broadly defined, including rivers, deltas, estuaries, continental shelves and others in the entire source-to-sink system. (1, 6)

101: Development of a Prototype, Science-based Coastal Information System for Routine Assessments and Monitoring of Coastal Zones in Developed and Developing Nations: Schedule

Organizers: Hans-Peter Plag, University of Nevada, Reno, hpplag@unr.edu; Thomas C. Malone, University of Maryland Center for Environmental Science, malone@umces.edu; Paul M. DiGiacomo, NOAA/NESDIS, Paul.DiGiacomo@noaa.gov; Michael Bruno, Stevens Institute of Technology, mbruno@stevens.edu

Under the auspices of the Group on Earth Observations, the international body coordinating implementation of the Global Earth Observation System of Systems (GEOSS), the Coastal Zone Community of Practice (http://czcp.org/) seeks to develop a web-based prototype Coastal Information System (CIS) that will enable routine, scientifically sound assessments of the condition of coastal ecosystems across the land-sea interface on a local to global scales. The initial focus will be on regions where there have been CZCP stakeholder workshops (the Mediterranean, west Africa, and the Caribbean) and regions where there is strong user interest and capacity for implementation. Papers are solicited that address the ìend to endî (linking observations and models via data management and communications) development of a prototype CIS, including (1) identification of key indicators of ecosystem condition, (2) data requirements for computing these indicators (from both remote and in situ sensing), (3) observing system requirements for the provision of indicators of integrated ecosystem assessments at rates and in forms specified by decision-makers, (4) suitable web-based solutions to convey and deliver information in a timely manner, and (5) a component enabling contributions from “citizen scientists,” which are of particular relevance in regions with gaps in monitoring infrastructure. (6, 11, 13, 16)

108: Biogeochemical and Sedimentological Factors That Influence Physical, Geotechnical and Mechanical Properties of Cohesive Sediments in Riverine and Littoral Zones: Schedule

Organizers: Yoko Furukawa, Naval Research Laboratory, yoko.furukawa@nrlssc.navy.mil; Joseph Calantoni, Naval Research Laboratory, Joe.Calantoni@nrlssc.navy.mil; Allen H. Reed, Naval Research Laboratory, Allen.Reed@nrlssc.navy.mil; Tian-Jian Hsu, University of Delaware, tianjianhsu@gmail.com

This session aims to develop a community-wide understanding of the state-of-the-art for cohesive sediment dynamics in rivers, estuaries, and coastal zones. The physical, geotechnical and mechanical properties (e.g., fluid flow, strength, compressibility, erodibility) of cohesive sediments are profoundly affected by sedimentological, biological and geochemical processes. A quantitative understanding of how these processes interact at nano-, meso-, and field-scales and thereby govern the resulting effects is necessary in order to establish a predictive capability for littoral sediment dynamics and shoreline stability for applications such as coastal optics, engineering and environmental restoration. Topics may include but are not limited to: 1) sediment strength characterization from remotely sensed biological characteristics, 2) sediment resuspension as a function of the micrometer-scale physicochemical properties, and 3) sediment erodibility as a function of either the rapid (< seconds) flocculation pathways or the long-term (> months to hundreds of years) consolidation history. The processes span wide ranges of temporal and spatial scales, and thus abstracts from observational, theoretical, and modeling studies of different spatial and temporal scales are encouraged. The session will provide a forum for researchers to discuss and relate sedimentological, biological and geochemical processes occurring over a wide range of temporal and spatial scales. (1, 5, 6, 18)

121: Remote Sensing of the Coastal Ocean Using Hyperspectral and Geostationary Satellite Imagers: Schedule

Organizers: Curtiss Davis, Oregon State University, cdavis@coas.oregonstate.edu; Yu-Hwan Ahn, KORDI, yhahn@kordi.re.kr; Jeffrey Bowles, Naval Research Laboratory, Washington D.C., jeffrey.bowles@nrl.navy.mil; Robert Arnone, Naval Research Laboratory, Stennis Space Center, MS, robert.arnone@nrlssc.navy.mil

The coastal ocean is one of the most valuable and over-utilized resources on the earth. Over a quarter of the World population live in the coastal zone and the coastal ocean is heavily impacted by urban and agricultural runoff, overfishing, transportation, oil and gas production and many other uses. The coastal ocean is also optically complex with plankton blooms and coastal runoff and highly dynamic driven by tides and diurnal winds. Two new approaches are now available to address these issues; hyperspectral imaging to resolve the optical complexity of the coastal ocean and imaging from geostationary satellites to resolve the temporal dynamics. The Hyperspectral Imager for the Coastal Ocean (HICO) was launched in September 2009 and operates on the International Space Station. The first geostationary ocean color radiometer the Korean Geostationary Ocean Color Imager (GOCI) was launched in June of 2010. This session invites presentations on the processing and analysis of HICO and GOCI data, on science conducted in preparation for future hyperspectral or geostationary imagers and on plans and designs for those instruments. (6, 12)

122: Climate Change Impacts on the High-Latitude Ocean: Schedule

Organizers: John Crusius, U.S. Geological Survey, Univ. of Washington, jcrusius@usgs.gov; Rob Campbell, Prince William Sound Science Center, rcampbell@pwssc.org; Andrew Schroth, US Geological Survey, Woods Hole, aschroth@usgs.gov

Climate change is most pronounced at high latitudes, yet these are among the most remote regions of the ocean and therefore often understudied. For this session we welcome contributions that examine possible impacts of climate change on high-latitude regions of the ocean, with particular emphasis on coastal systems. Perturbations to such systems might include changes in ice melt, stratification, ocean pH, nutrient supply, and in the spatial and temporal variability in nutrient limitation, among other possible impacts. We welcome presentations that provide new insight into biological, chemical and physical processes that are important in the high-latitude ocean, including presentations that discuss new data as well as modeling. (6, 7, 8)

125:   Ocean Acidification in Coastal and Estuarine Environments: Schedule

Organizers: Simone Alin, NOAA Pacific Marine Environmental Laboratory, simone.r.alin@noaa.gov; Adrienne Sutton, NOAA Pacific Marine Environmental Laboratory, adrienne.sutton@noaa.gov; Francis Chan, Oregon State University, chanft@science.oregonstate.edu; George Waldbusser, Oregon State University, waldbuss@coas.oregonstate.edu

Globally, anthropogenic emissions of CO2 are driving significant changes in ocean carbon chemistry, including declines in pH and carbonate saturation states. In estuaries and coastal oceans, ocean acidification (OA) is occurring in the context of other natural and anthropogenic biogeochemical processes that may accentuate or mitigate the magnitude and impacts of OA. Understanding of how OA is progressing in these environments is critical to managing coastal and estuarine resources in a changing world. Because oceanic carbon chemistry changes can only be stabilized over centennial time-scales, identifying processes that can be managed to ameliorate the present and future impacts of OA will be particularly important. Creative interdisciplinary research is needed to examine the role of ocean acidification in coastal and estuarine ecosystems already altered by other biogeochemical processes. This session seeks to showcase research that explores ocean acidification patterns and impacts on coastal and estuarine ecosystems. Submissions with a focus on biological, chemical, geological, or modeling aspects of OA along the continental margins are welcome. We particularly encourage submissions that address interactions between OA and other stressors, such as eutrophication, hypoxia, climate change, and pollution. (4, 5, 6, 8)

126: Links Between Estuarine and Coastal Processes: Schedule

Organizers: David A. Sutherland, NOAA, NWFSC, dsuth79@gmail.com; James A. Lerczak, College of Oceanic and Atmospheric Sciences, Oregon State University, jlerczak@coas.oregonstate.edu; Elizabeth W. North, University of Maryland Center for Environmental Science, enorth@umces.edu; Parker MacCready, School of Oceanography, University of Washington, pmacc@uw.edu

Over the past several years, major programs have begun to study the connections between estuaries and the coastal ocean, emphasizing the interactions among physical, biological, chemical, and geological processes. This session invites papers that advance our understanding of this important transition region and identify key questions and directions for future research. Topics might include how river plume dynamics affect coastal ocean circulation (and how estuarine exchange flows create and control river plumes), how species connect across these regions and the dynamical processes that regulate this exchange, how long term variability in coastal ocean properties influence estuarine systems, or how terrestrial influences (e.g., nitrate, pollution) brought to estuaries might impact the coastal environment. Papers that contrast regions or scales (small vs. large estuaries, tidal to interannual time scales) are also welcome. (2, 5, 6)

145: Physical, Chemical, and Biological Connections Between Coastal Zones (The Surfzone, Inner, Middle, and Outer Shelf and Continental Slope): Schedule

Organizers: Melanie Fewings, University of California, Santa Barbara, fewings@msi.ucsb.edu; Erika McPhee-Shaw, Moss Landing Marine Laboratories, SJSU, eshaw@mlml.calstate.edu; Roger Samelson, Oregon State University, rsamelson@coas.oregonstate.edu; R. Kipp Shearman, Oregon State University, shearman@coas.oregonstate.edu

There are dynamical differences between sub-regions of the continental shelf: the surfzone, inner shelf, mid shelf, outer shelf, and shelf slope. The outer shelf and slope may be influenced by a shelf break jet, slope-water intrusions, and deep-ocean eddies interacting with the shelf. On the inner shelf, where surface and bottom boundary layers overlap, turbulence influences the entire water column; the geostrophic response to along-shelf wind forcing is weak compared to the mid- and outer shelf; cross-shelf winds drive cross-shelf circulation; and even offshore of the surf zone, circulation can be affected by surface waves. Dynamics near the coast can also include a non-geostrophic baroclinic response to the diurnal sea breeze, the development of intense fronts, buoyant coastal-trapped flows, and shoaling nonlinear internal waves that may drive a net circulation. These dynamics control cross-shelf transport between the coast and deep sea that affects distributions of larvae, harmful algal blooms, carbon, high or low oxygen waters, nutrients, and pollutants. We invite observational, theoretical, and modeling presentations addressing physical, biological, and chemical aspects of cross-shelf transport and the dynamics and consequences of interactions and connections between the shallow and deeper coastal zones. (2, 6)

151: Low Latitude Riverine Influence and Impact on Ocean Biogeochemistry: Schedule

Organizers: Will Berelson, University of Southern California, berelson@usc.edu; Ajit Subramaniam, Lamont-Doherty Earth Observatory, ajit@ldeo.columbia.edu

The influence of riverine discharge on oceanic ecosystems, chemical cycles and sedimentation extends well beyond the continental margins. Low latitude rivers may enter ocean ecosystems that have been primed by coastal and/or equatorial upwelling but more often, discharge into oceanic margins of the oligotrophic gyres.  We welcome submittals on topicsrelated to riverine discharge and oceanic biogeochemical interactions including: benthic-pelagic coupling, new measures of productivity and export in these systems, fluxes and elemental budgets, carbon sequestration, reverse weathering and biogeochemical/ecological interactions.(4, 5, 6, 18)

161: Characterizing the Variability of the Coastal Ocean and Its Implications: Schedule

Organizers: Sung Yong Kim, Scripps Institute of Oceanography, syongkim@mpl.ucsd.edu; Anthony Kirincich, Woods Hole Oceanographic Institution, akirincich@whoi.edu

The rapid advancement of coastal ocean observational programs has enhanced our capability to capture the dynamics of coastal circulation. Coupled with this observational infrastructure, new satellite data products and advanced numerical modeling efforts allow us to investigate coastal processes including shelf, estuarine, and river flows at an unprecedented range of spatial and temporal scales, document their variability, and begin to investigate their implications. This session invites contributions that describe and interpret the dynamic nature of coastal circulation spanning from submesoscale to mesoscale and from episodic events to climate change. Presentations on observational and theoretical studies of circulation variability are recommended as are reports from recent process studies addressing individual dynamical aspects. Results from interdisciplinary studies on biological implications related to coastal dynamics at these scales are also encouraged. (2, 6, 13)

170: Adaptive Sampling of Coastal Waters Using Gliders and Autonomous Underwater Vehicles (AUVs): Novel Integration of Oceanography and Engineering Research: Schedule

Organizers: Catherine Edwards, Skidaway Institute of Oceanography, catherine.edwards@skio.usg.edu; Fumin Zhang, Georgia Tech-Savannah, fumin@gatech.edu

Gliders and other autonomous underwater vehicles (AUVs) are valuable tools for coastal ocean research, and engineering applications of vehicle control strategies can significantly improve the scientific value of the data collected. Innovative use of gliders calls for new research in development and application of control algorithms based on real-time inputs such as vehicle position, physical and/or bio-optical data collected by mobile and stationary assets, and operational circulation and ecosystem model forecasts. This session encourages presentations on novel research that explores new ideas in AUV navigation, control, and adaptive sampling for coastal applications, with seamless integration of oceanography and engineering effort for glider and AUV missions. Submissions should contain ideas and results that are significant for both disciplines. (6, 13)