PS41A:
Interactions Between Internal Waves and Mesoscale/Submesoscale Currents: Physics and Impacts on Ocean Energetics and Mixing I

Session ID#: 92603

Session Description:
Mesoscale eddies and low-frequency internal waves contain most of the ocean kinetic energy. It has been speculated that energy transfers between the waves and eddies play a leading-order role in their respective kinetic-energy budgets. Theory and analysis of numerical models suggest that these energy transfers are facilitated by features in the flow associated with strong vorticity, strain, and lateral density gradients, but our understanding of the relevant physics and our observations of these transfers in action are still emerging. Interactions between waves and both mesoscale and submesoscale currents can also impact internal wave-driven mixing by locally enhancing wave shear and turbulence. Our nascent understanding of the physics and impacts of these interactions warrants closer examination. This session invites contributions from observational, numerical, and theoretical studies on the physics of the interactions between internal waves and mesoscale/submesoscale currents and their impacts on regional to global scales.
Co-Sponsor(s):
  • OM - Ocean Modeling
  • PL - Physical Oceanography: Mesoscale and Larger
Index Terms:

4520 Eddies and mesoscale processes [OCEANOGRAPHY: PHYSICAL]
4544 Internal and inertial waves [OCEANOGRAPHY: PHYSICAL]
4568 Turbulence, diffusion, and mixing processes [OCEANOGRAPHY: PHYSICAL]
4572 Upper ocean and mixed layer processes [OCEANOGRAPHY: PHYSICAL]
Primary Chair:  Caitlin B Whalen, Applied Physics Laboratory University of Washington, Seattle, WA, United States
Co-chairs:  Cesar B Rocha, Scripps Institution of Oceanography, UCSD, La Jolla, CA, United States, Anna Savage, University of Michigan Ann Arbor, Portland, ME, United States and Stephanie Waterman, University of British Columbia, Department of Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada
Primary Liaison:  Caitlin B Whalen, Applied Physics Laboratory University of Washington, Seattle, WA, United States
Moderators:  Caitlin B Whalen, Applied Physics Laboratory University of Washington, Seattle, WA, United States and Cesar B Rocha, Scripps Institution of Oceanography, UCSD, La Jolla, CA, United States
Student Paper Review Liaisons:  Caitlin B Whalen, Applied Physics Laboratory University of Washington, Seattle, WA, United States and Cesar B Rocha, Scripps Institution of Oceanography, UCSD, La Jolla, CA, United States

Abstracts Submitted to this Session:

PS41A-01
Energy Sources and Supply Rates of the Internal Wave Continuum (651982)
Matthew H Alford, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Arnaud Le Boyer, University of California San Diego, Scripps Institution of Oceanography, San Diego, United States
PS41A-02
internal tides in the Solomon Sea in contrasted ENSO conditions (642838)
Michel Lionel Tchilibou1, Lionel Gourdeau2, Florent Lyard3, Rosemary Morrow4, Ariane Koch-Larrouy3, Damien Allain3 and Bugshin Djath5, (1)United States, (2)LEGOS/IRD, Toulouse, France, (3)LEGOS, Toulouse, France, (4)CNES French National Center for Space Studies, Toulouse Cedex 09, France, (5)LGGE Laboratoire de Glaciologie et Géophysique de l’Environnement, Saint Martin d'Hères, France
PS41A-03
The interaction of mode-1 internal tides with a geostrophic current (647948)
Yangxin He, University of Waterloo, Department of Applied Math, Waterloo, ON, Canada and Kevin G Lamb, Univ Waterloo, Waterloo, ON, Canada
PS41A-04
On the Modulation of Kinetic Energy Transfer by Internal Tides. (643730)
Adekunle O. Ajayi1, Julien Lesommer1, Laurent Brodeau2, Brian K Arbic3, Guillaume Serazin4, Aurélie Albert1 and Patrice Klein5, (1)Institut des Géosciences de l'Environnement, CNRS/Univ. Grenoble Alpes/G-INP/IRD, Grenoble, France, (2)Stockholm University, Stockholm, Sweden, (3)University of Michigan, Earth and Environmental Sciences, Ann Arbor, MI, United States, (4)Climate Change Research Center, UNSW, Australia., Sydney, NSW, Australia, (5)Cnrs/Ifremer/LOPS, Plouzané, France
PS41A-05
Ageostrophic dynamics of deep submesoscale fronts and their interaction with internal gravity waves (648823)
Patrice Klein1, Lia Siegelman2,3, Hector S Torres1, Dimitris Menemenlis4 and Andrew F Thompson5, (1)JPL/NASA/Caltech, Pasadena, CA, United States, (2)UBO, Physical Oceanography, Brest, France, (3)LOPS/LEMAR, Brest, France, (4)NASA Jet Propulsion Laboratory, Pasadena, United States, (5)California Institute of Technology, Pasadena, United States
PS41A-06
The Influence of Near-Inertial Wave–Mesoscale Turbulence Interactions on Passive Tracer Fluxes (657105)
Joseph G Fitzgerald and Jörn Callies, California Institute of Technology, Pasadena, CA, United States
PS41A-07
Pathways from Internal-Wave Driven Processes to Vortical Mode and Submesoscale Dispersion (654509)
Miles A Sundermeyer1, Marie-Pascale Lelong2, Eric L Kunze3, Jeffrey J Early4 and Cimarron J Wortham4, (1)University of Massachusetts Dartmouth, Estuarine and Ocean Sciences, New Bedford, United States, (2)NorthWest Research Associates, Boulder, United States, (3)NorthWest Research Associates, Seattle, United States, (4)NorthWest Research Associates, Redmond, WA, United States
PS41A-08
The impact of internal waves on small-scale geostrophic motions: Implications for submesoscale lateral dispersion (656147)
Marie-Pascale Lelong, NorthWest Research Associates, Boulder, United States, Gerardo Hernandez-Duenas, UNAM, Queretaro, QA, Mexico and Leslie M Smith, University of Wisconsin Madison, Madison, United States
See more of: Physical Oceanography: Mesoscale and Smaller