PO34C:
The Ocean's Energy Cascade: Measuring and Modeling of Instabilities, Internal Waves, and Turbulence at the Submesoscale and Smaller VI Posters
Session ID#: 11435
Session Description:
Large scale O(10^5 m) oceanic motions are linked to the turbulent scales O(<1 m) through a variety of mechanisms including internal wave radiation, interaction, and scattering, frontal instabilities, and boundary layer physics. Such mechanisms are essential for the vertical redistribution of energy generated along the ocean’s upper and bottom boundaries and thus are of critical importance in providing mechanical energy to processes in the stratified interior of the ocean. Regions of enhanced mixing are often found where a combination of currents, stratification, and topography act together to increase the potential for nonlinear interactions in the flow, for example through frontal instabilities and strong internal wave generation. Enhanced turbulence leads to mixing of water mass properties and changes to flow dynamics that can feedback on the larger-scale physics. This session welcomes contributions from observational, theoretical, and numerical studies of the ocean's energy cascade at small scales (i.e. submesoscale and smaller).
Primary Chair: Subhas Karan Venayagamoorthy, Colorado State University, Department of Civil and Environmental Engineering, Fort Collins, CO, United States
Chairs: Louis St Laurent, Woods Hole Oceanographic Insti, Woods Hole, MA, United States, Emily Shroyer, Oregon State Univ, Corvallis, OR, United States and Harper L Simmons, University of Alaska Fairbanks, Fairbanks, AK, United States
Moderators: Subhas Karan Venayagamoorthy, Colorado State University, Department of Civil and Environmental Engineering, Fort Collins, CO, United States and Louis St Laurent, Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, MA, United States
Student Paper Review Liaison: Emily Shroyer, Oregon State Univ, Corvallis, OR, United States
Co-Sponsor(s):
Abstracts Submitted to this Session:
Tidal Mixing over Rough Topography: Sensitivity to Topographic Length Scale and Steepness (87381)
Young Ro Yi, Princeton University, Geosciences, Princeton, NJ, United States, Sonya Legg, Princeton University, Princeton, NJ, United States and Robert Nazarian, Princeton University, Atmospheric and Oceanic Sciences, Princeton, NJ, United States
Structure Function Statistics to Detect Submesoscale Cascades (90176)
Jenna Lynn Palmer, Brown University, Earth, Environmental and Planetary Sciences, Providence, RI, United States and Baylor Fox-Kemper, Brown University, Providence, RI, United States
Uncertainties in Internal Tide Generation and Energy Flux in the Tasman Sea (92028)
Samuel Maurice Kelly, University of Minnesota Duluth, Duluth, MN, United States
Impact of the North Atlantic Subpolar Front on Near-Inertial Wave Propagation (89463)
Janna Köhler1, Maren Walter2, Christian Mertens2, Birgit A Klein3 and Monika Rhein4, (1)MARUM/Institute of Environmental Physics, University of Bremen, Bremen, Germany, (2)University of Bremen, Bremen, Germany, (3)BSH Federal Maritime and Hydrographic Agency, Hamburg, Germany, (4)University of Bremen, Institute of Environmental Physics, Bremen, Germany
Observed Internal Tide Energy Fluxes in the Tasman Tidal Dissipation Experiment (92758)
Olavo Badaro Marques, Scripps Institution of Oceanography, La Jolla, CA, United States and Matthew H Alford, Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States
The Internal Tide Of The Tasman Sea (93139)
Harper L Simmons, University of Alaska Fairbanks, Fairbanks, AK, United States, Dmitry Brazhnikov, University of Alaska Fairbanks, Anchorage, AK, United States, Sam Kelly, University of Minnesota Duluth, Duluth, MN, United States, Jody M Klymak, University of Victoria, Victoria, BC, Canada and Amy Frances Waterhouse, University of California San Diego, La Jolla, CA, United States
Local turbulence and baroclinic energy balance in a Luzon Strait model (90320)
Masoud Jalali1, Sutanu Sarkar1 and Vamsi K Chalamalla2, (1)University of California San Diego, La Jolla, CA, United States, (2)University of California at San Diego, Aerospace and Mechanical Engineering, San Diego, CA
Application of Directional Wave Spectra Method to Numerical Investigations of Internal Tide Reflection (90370)
Dmitry Brazhnikov1, Harper L Simmons1, Jody M Klymak2 and Zhongxiang Zhao3, (1)School of Fisheries and Ocean Sciences, Fairbanks, AK, United States, (2)University of Victoria, Victoria, BC, Canada, (3)Applied Physics Laboratory University of Washington, Seattle, WA, United States
Observations of arrested internal lee waves at a tall, steep submarine ridge (90400)
Celia Yun Ou, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Shaun Johnston, University of California San Diego, La Jolla, CA, United States
Internal tides variability at steep topographies: Interactions and probabilistic global dynamical analysis (93718)
Sydney Sroka, Pierre F J Lermusiaux and Patrick J Haley Jr, Massachusetts Institute of Technology, Cambridge, MA, United States
Looking Inside Internal Tides – A High Resolution Modelling Study (89676)
Ashley Brereton1, Jeff Polton1 and Andres E Tejada-Martinez2, (1)National Oceanography Centre, Liverpool, United Kingdom, (2)University of South Florida, Civil and Environmental Engineering, Tampa, FL, United States
Measurements of a Lee Wave in the Southern Ocean: Energy and Momentum Fluxes and Mixing (89120)
Jesse Martin Cusack, University of Southampton, United Kingdom; National Oceanography Centre, Southampton, United Kingdom, Sheldon Bacon, University of Southampton, Southampton, United Kingdom, David Smeed, National Oceanography Center, Soton, Southampton, United Kingdom and James B Girton, University of Washington, Applied Physics Laboratory, Seattle, WA, United States
How to Improve Surface and Internal Tides in a Global Ocean Model? Use a Linear Wave Drag Parameterization! (93684)
Maarten C Buijsman1, Joseph K Ansong2, Brian K Arbic2, James G Richman3, Jay F Shriver4, Patrick G Timko5, Alan J Wallcraft6, Caitlin Beth Whalen7 and Zhongxiang Zhao8, (1)University of Southern Mississippi, Stennis Space Center, MS, United States, (2)University of Michigan Ann Arbor, Ann Arbor, MI, United States, (3)COAPS, Florida State University, Tallahassee, FL, United States, (4)Naval Research Laboratory, Stennis Space Center, Stennis Space Center, MS, United States, (5)University of Michigan, Dept of Earth and Environmental Sciences, Ann Arbor, MI, United States, (6)Naval Research Laboratory, Stennis Space Center, MS, United States, (7)University of California San Diego, La Jolla, CA, United States, (8)Applied Physics Laboratory University of Washington, Seattle, WA, United States
The ARCtic Tracer Release EXperiment (ARCTREX): Initial results from the release of passive tracers in the Chukchi Sea. (92418)
Elias J Hunter1, Robert J Chant2, Peter Winsor3, Harper L Simmons4 and Hank Statscewich3, (1)Rutgers University, New Brunswick, NJ, United States, (2)Institute of Marine and Coastal Science, New Brunswick, NJ, United States, (3)University of Alaska Fairbanks, College of Fisheries and Ocean Sciences, Fairbanks, AK, United States, (4)University of Alaska Fairbanks, Fairbanks, AK, United States
Tidally induced turbulence in the Bermuda underwater cave-system (92929)
Sergey Molodtsov1, Ayal Anis2 and Thomas M. Iliffe2, (1)Texas A & M University College Station, Department of Oceanography, College Station, TX, United States, (2)Texas A & M University at Galveston, Galveston, TX, United States
Downward lee wave radiation from tropical instability waves in the central equatorial Pacific Ocean: a possible energy pathway to turbulent mixing (90665)
Yuki Tanaka, The University of Tokyo, Department of Earth and Planetary Science, Graduate School of Science, Tokyo 113-0033, Japan, Toshiyuki Hibiya, University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan and Hideharu Sasaki, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan
Impacts of tidal-mixing parameterization on the simulation of the South China Sea circulations (90675)
Shiqiu Peng, SCSIO South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
Seismic Oceanography of the Gulf of Mexico (89387)
Alex Dickinson, University of Cambridge, Department of Earth Sciences (Bullard Laboratories), Cambridge, United Kingdom, Nicky White, University of Cambridge, Earth Sciences (Bullard Laboratories), Cambridge, United Kingdom, Colm-cille Patrick Caulfield, University of Cambridge, BP Institute/Department of Applied Mathematics and Theoretical Physics, Cambridge, United Kingdom and Matthew Falder, University of Birmingham, School of Geography, Earth and Environmental Sciences, Birmingham, B15, United Kingdom
Characteristic and Variation of the High Frequency Variability (HFV) in the South China Sea (SCS) (90539)
Hiu Suet Kung, Hong Kong University of Science and Technology, Division of Environment & Department of Mathematics, Hong Kong, Hong Kong, Gan Jianping, Hong Kong University of Science and Technology, Hong Kong, Hong Kong and Tswen-Yung Tang, Institute of Oceanography, National Taiwan University, Taipei, Taiwan
Near-Inertial Waves on the Continental Shelf: Physics Based on Observations off the West Florida. (93727)
Ekaterina V Maksimova, Florida State University, Tallahassee, FL, United States; University of South Florida St. Petersburg, St Petersburg, FL, United States and Robert H Weisberg, University of South Florida, St Petersburg, FL, United States
Propagation and Dissipation of Internal Tides on the Northwest Shelf of Australia from Microstructure Observations and Numerical Simulations (89965)
Ana E Rice1, Jeffrey W Book2, Nicole L Jones3, Cynthia Bluteau4, Gregory N Ivey5 and Scott R Smith2, (1)Naval Research Lab Stennis Space Center, Stennis Space Center, MS, United States, (2)U.S. Naval Research Laboratory, Stennis Space Center, MS, United States, (3)University of Western Australia, Crawley, WA, Australia, (4)Institut des Sciences de la Mer de Rimouski, Rimouski, QC, Canada, (5)University of Western Australia, Crawley, Australia
Observations of Nonlinear Internal Tides and Turbulence in a Steep Submarine Canyon (90272)
Madeleine Marie Hamann1, Veronica Tamsitt1, Celia Yun Ou2, Marion S Alberty3, Sam Billheimer4, Matthew H Alford5 and Andrew Lucas3, (1)Scripps Institution of Oceanography, Physical Oceanography, La Jolla, CA, United States, (2)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (3)Scripps Institution of Oceanography, La Jolla, CA, United States, (4)Scripps Institution of Oceanography, San Deigo, CA, United States, (5)Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States
