PS11A:
Interaction Between Internal Waves and Multiple-Scale Dynamics I


Session ID#: 37887

Session Description:
Internal waves in the ocean, including inertial internal waves, internal tides and nonlinear internal waves, co-exist with other oceanic phenomena with multiple-scales, such as general circulations, fronts, mesoscale and sub-mesoscale eddies. Since such phenomena have different temporal and spatial scales from internal waves, their dynamics have usually been studied separately. However, more and more evidences reveal apparent interactions between them. Background currents and tilted thermocline associated with geostrophic circulation or mesoscale eddies affect the generation and propagation of internal waves, including reflection, refraction, formation of higher modes and non-linear evolution. As a feedback, internal wave breaking or scattering changes local mixing, thus influencing the genesis and evolution of general circulation and mesoscale eddies. This feedback may be especially important for long-term variations of ocean circulation and climate change, and also provides a roadmap to understand and estimate appropriate dissipation rates for numerical models. This session invites presentations that report recent progress on interactions between internal waves and other dynamical phenomena in the ocean, so as to clarify the energy and momentum route between these processes in different scales. Observational, theoretical and numerical investigations are all welcome.
Primary Chair:  Qiang Li, Tsinghua University, Graduate School at Shenzhen, Beijing, China
Co-chairs:  Xueen Chen, Ocean University of China, Qingdao, China and John Huthnance, National Oceanography Center, Liverpool, United Kingdom
Moderators:  Xueen Chen, Ocean University of China, Qingdao, China and John Huthnance, National Oceanography Center, Liverpool, United Kingdom
Student Paper Review Liaison:  Qiang Li, Tsinghua University, Graduate School at Shenzhen, Beijing, China
Index Terms:

4544 Internal and inertial waves [OCEANOGRAPHY: PHYSICAL]
4568 Turbulence, diffusion, and mixing processes [OCEANOGRAPHY: PHYSICAL]
4572 Upper ocean and mixed layer processes [OCEANOGRAPHY: PHYSICAL]
Cross-Topics:
  • PO - Physical Oceanography: Other

Abstracts Submitted to this Session:

Assessment of finescale parameterizations of deep ocean mixing in the presence of geostrophic current shear : Results of microstructure measurements in the Antarctic Circumpolar Current Region (326776)
Anne Takahashi, The University of Tokyo, Earth and planetary Science, Tokyo, United States and Toshiyuki Hibiya, The University of Tokyo, Department of Earth and Planetary Science, Graduate School of Science, Tokyo, Japan
Internal wave propagation and scattering in presence of non-trivial background currents, varying stratification and arbitrary topography (323168)
Stefan G Llewellyn Smith, University of California San Diego, La Jolla, CA, United States and Noe Jules-Antoine Lahaye, LOPS, IUEM, University of Brest, Brest, France
Stimulated generation: extraction of energy from balanced flow by near-inertial waves  (303370)
Cesar B Rocha, Scripps Institution of Oceanography, La Jolla, CA, United States, Gregory LeClaire Wagner, MIT, Cambridge, MA, United States and William R Young, University of California, La Jolla, CA, United States
Internal Waves, Their Amplification, and Potential to Break (325643)
Andrei Natarov and Kelvin John Richards, University of Hawaii at Manoa, Honolulu, HI, United States
Observed eddy - internal wave interaction in the Southern Ocean (312806)
Jesse Martin Cusack, National Oceanography Centre, Southampton, United Kingdom, J. Alexander Brearley, British Antarctic Survey, Cambridge, United Kingdom, Alberto Naveira Garabato, University of Southampton, Southampton, United Kingdom and David Smeed, National Oceanography Center, Soton, Southampton, United Kingdom
Observations of near-inertial internal waves in the southeast Indian Ocean (304701)
Ajitha Cyriac1, Helen Elizabeth Phillips2, Nathaniel L. Bindoff1 and Ming Feng3, (1)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, Australia, (2)University of Tasmania, Institute for Marine and Antarctic Studies, IMAS, Hobart, Australia, (3)CSIRO, Oceans and Atmosphere, Crawley, Australia
Propagation and Dissipation of Nonlinear Internal Tides on the Australian Northwest Shelf (312371)
Jeffrey W Book1, Nicole L Jones2, Ana E Rice1, Gregory N Ivey3, Silvia Matt1 and Scott R Smith1, (1)U.S. Naval Research Laboratory, Stennis Space Center, MS, United States, (2)University of Western Australia, Crawley, WA, Australia, (3)University of Western Australia, Crawley, Australia

See more of: Physical Oceanography: Mesoscale and Smaller