MG001:
Internal Waves/Tides and Sediment Processes on Continental Margins


Session ID#: 27636

Session Description:
Enhanced bottom currents and turbulence generated by the interaction of internal waves/tides with the seafloor have been shown to influence sedimentation and generate nepheloid layers and sediment bedforms over continental slopes and within submarine canyons. Higher frequency internal waves in the form of nonlinear solitons, bores, and boluses can also resuspend and transport bottom sediment, particularly in shallow seas and on inner continental shelves. This session solicits abstracts focusing on how near-inertial, semi-diurnal and/or higher frequency internal waves drive sedimentation and sediment transport in the coastal and open ocean. We welcome presentations describing field measurements, numerical and conceptual models, and laboratory experiments on this interdisciplinary topic. Interesting subjects include, but are not limited to: (1) sedimentation effects of normally and obliquely incident critical and near-critical internal tides propagating over oceanic slopes; (2) sediment resuspension caused by internal-wave driven bed stresses, vertical “updrafts”, and vortices; (3) cross-shelf exchange driven by internal motions; and (4) morphologic and stratigraphic evidences and signatures of internal waves/tides in the seafloor and the geologic record.
Primary Chair:  David A Cacchione, Emeritus, U.S. Geological Survey, Coastal and Marine Geology, Menlo Park, CA, United States; Coastal and Marine Environments, Vancouver, WA, United States
Co-chairs:  Olivia M Cheriton, USGS Western Regional Offices Menlo Park, Menlo Park, CA, United States; U.S. Geological Survey, Pacific Coastal and Marine Science Center, Santa Cruz, CA, United States, Oliver B Fringer, Stanford University, Department of Civil and Environmental Engineering, Stanford, CA, United States and Pere Puig, Institut de Ciències del Mar (CSIC), Marine Geosciences, Barcelona, Spain
Index Terms:

3002 Continental shelf and slope processes [MARINE GEOLOGY AND GEOPHYSICS]
3022 Marine sediments: processes and transport [MARINE GEOLOGY AND GEOPHYSICS]
3045 Seafloor morphology, geology, and geophysics [MARINE GEOLOGY AND GEOPHYSICS]
4544 Internal and inertial waves [OCEANOGRAPHY: PHYSICAL]
Cross-Topics:
  • CD - Coastal Dynamics
  • PS - Physical Oceanography: Mesoscale and Smaller
  • PO - Physical Oceanography: Other

Abstracts Submitted to this Session:

Marilia T Hagen, UFF Federal Fluminense University, Niteroi, Brazil
Daniel Bourgault, Institut des Sciences de la Mer de Rimouski, Rimouski, QC, Canada, Michele Morsilli, University of Ferrara, Italy, Clark Richards, Bedford Institute of Oceanography, Dartmouth, NS, Canada, Urs Neumeier, Institut des sciences de la mer de Rimouski, Canada and Dan E Kelley, Dalhousie University, Oceanography, Halifax, NS, Canada
Eiji Masunaga, Ibaraki University, Mito, Japan, Oliver B Fringer, Stanford Univ-Civil/Envir Engg, Stanford, CA, United States, Hidekatsu Yamazaki, Tokyo University of Marine Science and Technology, Tokyo, Japan, Robert S Arthur, Lawrence Livermore National Laboratory, CA, United States and Koyo Wada, Tokyo University of Marine Science and Technology, Japan
Marek Stastna, University of Waterloo, Waterloo, ON, Canada and David Deepwell, University of Waterloo, Applied Mathematics, Waterloo, ON, Canada
Jason Jolliff, US Naval Research Laboratory, Washington, DC, United States, Ewa Jarosz, John C. Stennis Space Center, Stennis Space Center, MS, United States, Travis Smith, Naval Research Lab, Stennis Space Center, MS, United States, Allison Penko, Naval Research Lab Stennis Space Center, Stennis Space Center, MS, United States and Sherwin Ladner, NRL Code 7331, Stennis Space Center, MS, United States
Carlton HANS Nelson1, Alina Polonia2, David A Cacchione3, Stefania Romano2, Claudio Stefano Vaiani4 and Ester Colizza5, (1)Instituto Andaluz de Ciencias de la Tierra (CSIC), Granada, Spain, (2)Institute of Marine Sciences (ISMAR-CNR), Bologna, Italy, (3)Coastal and Marine Environments, Vancouver, WA, United States, (4)Dip. di Scienze Biologiche, Geologiche e Ambientali, University of Bologna, Bologna, Italy, (5)Dip. di Matematica e Geoscienze, Universita' degli Studi di Trieste, Trieste, Italy
Steven R Ramp, Soliton Ocean Services LLC, Falmouth, MA, United States, David A Cacchione, Coastal and Marine Environments, Vancouver, WA, United States, Y. J. Yang, National Taiwan University, Institute of Oceanography, Taipei, Taiwan, Gwo-Shyh Song, National Taiwan University, Institute of Oceanograpy, Taipei, Taiwan, J. Y. Lou, Chinese Naval Academy, Kaohsiung, Taiwan, Ching-Sang Chiu, Naval Postgraduate School, Monterey, CA, United States, D. Benjamin Benjamin Reeder, Naval Postgraduate School, Oceanography, Monterey, CA, United States and Frederick L Bahr, Monterey Bay Aquarium Research Institute, Moss Landing, CA, United States
Peter Diamessis, Cornell University, Ithaca, NY, United States, Takahiro Sakai, University of Southern California, United States, Kristopher Rowe, Cornell University, United States and Gustaaf Jacobs, San Diego State University, United States
Kevin G Lamb1, Marcus Dengler2, Peter Brandt2 and Thilo Klenz3, (1)University of Waterloo, Waterloo, ON, Canada, (2)GEOMAR, Kiel, Germany, (3)University of Alaska Fairbanks, Fairbanks, AK, United States
Timothy F Duda1, Weifeng Zhang2, Zhen Cheng3, Andrew D Ashton4, Peter Traykovski5 and John H Trowbridge3, (1)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (2)Woods Hole Oceanographic Inst, Woods Hole, MA, United States, (3)WHOI, Woods Hole, MA, United States, (4)WHOI, Geology and Geophysics, Woods Hole, MA, United States, (5)Woods Hole Oceanograph Inst, Falmouth, MA, United States
Peiwen Zhang1, Zhenhua Xu1, Baoshu Yin1, Qun Li2, Yijun Hou1 and Antony A K Liu3, (1)Institute of Oceanology, Chinese Academy of Sciences and Qingdao National Laboratory for Marine Science and Technology, Qingdao, China, (2)Polar Research Institute of China, Shanghai, China, (3)Ocean College, Zhejiang University, Hangzhou, China
Zihua Liu, Roger Grimshaw and Edward R Johnson, University College London, London, United Kingdom
Raymond Nepstad1, Emlyn Davies2 and Morten Alver2, (1)SINTEF Ocean, Environmental Technology, Trondheim, Norway, (2)SINTEF Ocean, Trondheim, Norway
Michael Z Li, Geological Survey of Canada Atlantic, Dartmouth, NS, Canada, Robert H. Prescott, Prescott and Zou Consulting, United States and Angus G. Robertson, Geological Survey of Canada - Atlantic, NS, Canada
Erika E McPhee-Shaw, Western Washington University, Department of Environmental Sciences, Bellingham, WA, United States and Olivia M Cheriton, U.S. Geological Survey, Santa Cruz, CA, United States
Jeffrey Reeve Nielson, Stephen M Henderson and John Harrison, Washington State University Vancouver, School of the Environment, Vancouver, WA, United States
Oliver B Fringer, Stanford University, Department of Civil and Environmental Engineering, Stanford, CA, United States and Robert S Arthur, Lawrence Livermore National Laboratory, CA, United States