EP14B:
The Interplay of Cohesive Sediment Dynamics and Hydrodynamics in the Coastal Riverine Zone to the Outer Reaches of the Continental Shelf I


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Session ID#: 61865

Session Description:
Cohesive sediment (or mud) dynamics in the coastal zone to the outer Continental Shelf are impacted by fluvial and ocean dynamics. For instance, cohesive sediment dynamics strongly influences hydrodynamics in rivers and coastal zones by altering fluid properties, damping wave spectra, reducing turbulence, directing seabed morphology, zoning chemical species, altering acoustic properties, and reducing optical clarity. Conversely, fluvial processes, tides, currents, internal waves, tsunamis etc., affect cohesive sediment dynamics, transport, and geomorphology through forced aggregation, turbulence induced flocculation, subaqueous deposition, subaerial deposition or land building, bed-form alteration, resuspension, and massive mud failure. In addition to physical processes, mud properties are strongly influenced by biota. This session welcomes presentations on recent laboratory, field, and numerical studies that address hydrodynamic processes that affect cohesive sediment dynamics, such as wave or current induced sediment transport, but which are currently decoupled from cohesive sediment dynamics, and on cohesive sediment dynamics that affect hydrodynamic processes.
Primary Convener:  Andrew James Manning, University of Plmyouth, School of Biological and Marine Sciences, Plymouth, United Kingdom; University of Hull, Energy & Environment Institute, Hull, United Kingdom
Conveners:  Leiping Ye, University of Delaware, Civil & Environmental Eng., Newark, DE, United States and Daniel R Parsons, University of Hull, Energy & Environment Institute, Hull, United Kingdom
Primary Liaison:  Andrew James Manning, University of Hull, Energy & Environment Institute, Hull, United Kingdom; University of Plmyouth, School of Biological and Marine Sciences, Plymouth, United Kingdom
Chairs:  Andrew James Manning1, Leiping Ye2 and Daniel R Parsons1, (1)University of Hull, Energy & Environment Institute, Hull, United Kingdom(2)University of Delaware, Civil & Environmental Eng., Newark, DE, United States
OSPA Liaison:  Andrew James Manning, University of Hull, Energy & Environment Institute, Hull, United Kingdom
Index Terms:

1861 Sedimentation [HYDROLOGY]
3022 Marine sediments: processes and transport [MARINE GEOLOGY AND GEOPHYSICS]
4558 Sediment transport [OCEANOGRAPHY: PHYSICAL]
4863 Sedimentation [OCEANOGRAPHY: BIOLOGICAL AND CHEMICAL]

Abstracts Submitted to this Session:

The Importance of Organic Matter Content to Fractal Particle Properties in Estuarine Surface Waters as Constrained by Floc Excess Density, Floc Apparent Density, and Primary Particle Bulk Density: Insights from Video Settling, LISST, and Pump Sampling (Invited) (418212)
Carl T Friedrichs1, Kelsey Fall2,3, Grace Massey2, David George Bowers4 and Jarrell Smith5, (1)Virginia Institute Marine Science, Gloucester Point, VA, United States, (2)Virginia Institute of Marine Science, Gloucester Point, United States, (3)USACE-ERDC Coastal and Hydraulics Laboratory, Vicksburg, MS, United States, (4)Univ Bangor, North Wales, United Kingdom, (5)U.S. Army Engineer Research and Development Center, Coastal and Hydraulics Laboratory, Vicksburg, United States
A Laboratory Flume Investigation of the Estimation of Wave-induced Fluid Mud Thickness (Invited) (375833)
Ashish J Mehta, Nutech Consultants, Inc., Gainesville, FL, United States and David J. Robillard, U.S. Naval Academy, Naval Architecture and Ocean Engineering, Annapolis, United States
Effect of flocculation on estimated sediment flux derived from optical turbidity measurements in the San Francisco Estuary (380323)
Daniel N Livsey1, Maureen Downing-Kunz1, Andrew J Manning2,3 and David H Schoellhamer4, (1)USGS California Water Science Center Sacramento, Sacramento, CA, United States, (2)University of Hull, Hull, United Kingdom, (3)HR Wallingford Ltd, Coasts & Oceans Group, Wallingford, United Kingdom, (4)USGS, Portland, OR, United States
How does the deposition and resuspension process alter the size and resuspension rate of mud flocs? (408852)
Kyle Strom, Virginia Tech, Civil Engineering, Blacksburg, United States and Duc anh Tran, Virginia Polytechnic Institute and State University, Blacksburg, VA, United States
In situ observations of near-bed turbulence and cohesive sediment transport (380036)
Galen Egan1, Marianne Cowherd2, Frank Spada3, Kara Scheu4, Andrew J Manning2,5, Craig Alexander Jones3, Stephen G Monismith6, Grace Chang7 and Oliver B Fringer8, (1)Sofar Ocean, San Francisco, United States, (2)Stanford University, Stanford, United States, (3)Integral Consulting Inc., Santa Cruz, CA, United States, (4)Integral Consulting Inc, Marine Science and Engineering, Portland, OR, United States, (5)HR Wallingford, Wallingford, United Kingdom, (6)Stanford University, Oceans, Stanford, United States, (7)Integral Consulting Inc., Santa Cruz, United States, (8)Stanford University, Stanford, CA, United States
Tidal variability in flocculation dynamics in the secondary turbidity maximum of the York River Estuary, VA: a numerical study (457442)
Danielle Tarpley, Virginia Institute of Marine Science, Gloucester Point, VA, United States, Dr. Courtney Kay Harris, Ph.D., Virginia Institute of Marine Science, William & Mary, Gloucester Point, United States and Carl T Friedrichs, Virginia Institute Marine Science, Gloucester Point, VA, United States

See more of: Earth and Planetary Surface Processes