MG51A:
Sediment Delivery, Transport, and Deposition in Shallow-Water Environments II


Session ID#: 37323

Session Description:
Coastal aquatic environments are particularly susceptible to environmental degradation in part because they are shallow and often experience high loadings from rivers and shorelines. Expanding populations stress these regions, and in many cases have contributed to increases in the frequency and severity of unwanted effects, including: coastal erosion, hypoxia, harmful algal blooms, excess turbidity, and high rates of sedimentation. These problems are often tied to sediment transport, such that many nutrients and anthropogenic pollutants are transported with sediments, and sediment-induced turbidity can limit the amount of light available for photosynthesis and visual predators. Sediment transport in coastal waters can create deposits that in some cases are modified or destroyed by subsequent events, while in others may be preserved in the geologic record. Recent advances in theoretical, observational, and numerical modeling techniques have led to increased understanding of the processes and products of sediment delivery, transport and deposition in shallow-water environments: including lakes, estuaries, coasts and continental shelves. This session showcases research relevant to these environments covering physical forcing, particle behavior, modes of transport, biogeochemical feedbacks with sediment, sedimentary response, and event stratigraphy. Studies in this session may derive from field observations, laboratory experiments, and modeling across a range of timescales.
Primary Chair:  Courtney Kay Harris, Virginia Institute of Marine Science, Department of Physical Sciences, Gloucester Point, VA, United States
Co-chairs:  Guan-hong Lee, Inha University, Department of Oceanography, Incheon, South Korea and John P Walsh, East Carolina University, Institute for Coastal Science and Policy, Greenville, NC, United States
Moderators:  Courtney Kay Harris, Virginia Institute of Marine Science, Department of Physical Sciences, Gloucester Point, VA, United States and Guan-hong Lee, Inha University, Department of Oceanography, Incheon, South Korea
Student Paper Review Liaison:  Courtney Kay Harris, Virginia Institute of Marine Science, Gloucester Point, VA, United States
Index Terms:

3022 Marine sediments: processes and transport [MARINE GEOLOGY AND GEOPHYSICS]
3045 Seafloor morphology, geology, and geophysics [MARINE GEOLOGY AND GEOPHYSICS]
4211 Benthic boundary layers [OCEANOGRAPHY: GENERAL]
Cross-Topics:
  • CD - Coastal Dynamics
  • E - Estuarine Processes

Abstracts Submitted to this Session:

Three-dimensional Mn(II) and Fe(II) Flux in marine and lacustrine sedimentary deposits: a bioirrigation case study (316265)
Jaime Soto Neira, Stony Brook University, Stony Brook, NY, United States; GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, Qingzhi Zhu, Stony Brook University, School of Marine and Atmospheric Sciences, Stony Brook, NY, United States and Robert C Aller, SUNY StonyBrook, Stony Brook, NY, United States
Geochemical Characterization of Copper River, Alaska Suspended Sediments: Implications for Proxy Development to Assess Sedimentary Records (325220)
Joshua R Williams, Virginia Institute of Marine Science, Department of Physical Sciences, Gloucester Point, VA, United States, Steven A Kuehl, College William & Mary, Gloucester Point, VA, United States, Mohammad E Al Mukaimi, University of Kuwait, Department of Marine Science, Kuwait City, DC, Kuwait and Elisabeth Rose Clyne, Virginia Institute of Marine Science, Gloucester Point, VA, United States
Incipient Motion Threshold of Variable Density, Size, and Shape Sand and Oil Agglomerates (303337)
Timothy Robert Nelson1, Soupy Dalyander1, Donya P Frank2, Edward F Braithwaite III3, Allison Penko4, Joe Calantoni3 and Robert L Jenkins III5, (1)USGS Coastal and Marine Science Center St. Petersburg, St Petersburg, FL, United States, (2)US Naval Research Laboratory, NRC Postdoc at US Naval Research Laboratory, Stennis Space Center, MS, United States, (3)U.S. Naval Research Laboratory, Stennis Space Center, MS, United States, (4)Naval Research Lab Stennis Space Center, Stennis Space Center, MS, United States, (5)Cherokee Nation Technologies, St. Petersburg, FL, United States
A unified bedload transport model for both bare and vegetated channels (306520)
Judy Qingjun Yang, Massachusetts Institute of Technology, Cambridge, MA, United States and Heidi Margaret Nepf, Massachusetts Institute of Technology, Civil/Env. Eng., Cambridge, MA, United States
Recent Changes of the Asian Deltas: Rapid Onshore and Offshore Erosion (308330)
Paul Liu, North Carolina State University Raleigh, Raleigh, NC, United States and Yoshiki Saito, Estuary Research Center, Shimane University, Matsue, Japan
Processes Impacting Sedimentation on the Ayeyarwady Delta (305206)
Charles (Chuck) Nittrouer1, Aaron T Fricke2, Andrea S Ogston2, Cherry Aung3, Hannah Glover2 and Thet Naing4, (1)University of Washington Seattle Campus, Seattle, WA, United States, (2)University of Washington, School of Oceanography, Seattle, WA, United States, (3)Pathein University, Department of Marine Science, Pathein, Myanmar, (4)Pathein University, Department of Geology, Pathein, Myanmar
Fate of Ayeyarwady River Sediment in the Northern Andaman Sea: Relative Importance of Oceanographic and Tectonic Controls (314957)
Steven A Kuehl1, Day Wa Aung2, Yin Yin Aye3, Courtney Kay Harris1, Paul Liu4 and Joshua R Williams5, (1)Virginia Institute of Marine Science, Gloucester Point, VA, United States, (2)University of Yangon, Department of Geology, Yangon, Myanmar, (3)Mawlamyine University, Department of Geology, Myanmar, (4)North Carolina State Univ, Raleigh, NC, United States, (5)Texas A&M University, Department of Marine Sciences, Galveston, TX, United States

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