PS42A:
Interactions Between Internal Waves and Mesoscale/Submesoscale Currents: Physics and Impacts on Ocean Energetics and Mixing II

Session ID#: 92607

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:
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:

Three Dimensional Structure of Near-Inertial Waves and Their Interactions with Mesoscale Structures from Direct Observations (655012)
Luc Rainville1, James B Girton1, Anna Savage2, Leif N Thomas3 and Caitlin B Whalen1, (1)Applied Physics Laboratory, University of Washington, Seattle, WA, United States, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)Stanford University, Stanford, CA, United States
Global Estimates of Near-Inertial Internal Wave Generation (640704)
Samuel Maurice Kelly, University of Minnesota Duluth, Duluth, MN, United States, Maarten C Buijsman, University of Southern Mississippi, Stennis Space Center, MS, United States, Keshav Raja, Universiy of Southern Mississippi, School of Ocean Science and Engineering, John C. Stennis Space Center, MS, United States and Harper L Simmons, University of Alaska Fairbanks, Fairbanks, AK, United States
Near-Inertial Wave - Eddy Interactions in Realistic High Resolution Simulations of the North Atlantic Subpolar Gyre (656932)
Kaushik Srinivasan, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, Roy Barkan, Tel Aviv University, Tel Aviv, Israel, James C. McWilliams, University of California Los Angeles, Los Angeles, CA, United States and Jonathan Gula, Université de Bretagne Occidentale, Laboratoire d'Océanographie Physique et Spatiale (UBO, CNRS, Ifremer, IRD), Plouzané, France
Direct observations of the collapse in lateral scale and subsequent propagation of a near-inertial wave in a dipole vortex (645590)
Leif N Thomas, Stanford University, Stanford, CA, United States, Luc Rainville, University of Washington, Seattle, WA, United States, Craig Lee, Univ Washington, Seattle, WA, United States, Olivier Asselin, Scripps Institution of Oceanography, UC San Diego, United States, William R Young, University of California, La Jolla, CA, United States and James B Girton, Applied Physics Laboratory, University of Washington, Seattle, WA, United States
On the Evolution of a Wind-Generated Inertial Wave in a Vortex Dipole (638520)
Olivier Asselin, Scripps Institution of Oceanography, UC San Diego, United States, Leif N Thomas, Stanford University, Stanford, CA, United States, William R Young, University of California, La Jolla, CA, United States and Luc Rainville, University of Washington, Seattle, WA, United States
Frequency Shift of Near Inertial Waves in the South China Sea (640034)
Arnaud Le Boyer1, Matthew H Alford2,3, Robert Pinkel4, Tyler Hennon2, Yiing Jang Yang5, Dong S Ko6 and Jonathan D Nash7, (1)Scripps Institution of Oceanography, MPL, San Diego, CA, United States, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (4)Univ California San Diego, La Jolla, CA, United States, (5)National Taiwan University, Taipei, Taiwan, (6)Naval Research Lab., Oceanography, Stennis Space Center, MS, United States, (7)Oregon State University, Corvallis, OR, United States
Lagrangian-Mean Motion Induced By Vertically Trapped Inertia-Gravity Wavepackets (657156)
Wenjing Dong1, Oliver Buhler1 and K. Shafer Smith2, (1)New York University, New York, NY, United States, (2)New York University, Courant Institute of Mathematical Sciences, New York, NY, United States
Geophysical turbulence dominated by inertia-gravity waves (657361)
Jim Thomas, Department of Mathematics, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States