PS53A:
Defining the New Frontiers of Ocean Mixing Research II

Session ID#: 92575

Session Description:
Ocean mixing plays several very important roles in the open and coastal ocean through a variety of different processes. In the upper ocean, mixing influences the sea surface temperature and hence air-sea interactions which in turn impact global climate change; while in the deep ocean, mixing maintains the abyssal stratification of the world’s oceans and impacts the global overturning circulation. Ocean mixing also modulates the transport and dispersal of dissolved and suspended materials including pollutants and fish larvae. Planktonic ecosystems are controlled through nutrient pumping associated with ocean mixing.

     This session encompasses a wide variety of aspects of mixing within the water column from the surface to the seabed, as well as the impact of mixing on key physical, biological, and chemical processes, such as those mentioned above, with special attention to new findings obtained through improvements in oceanographic instrumentation and the use of supercomputers. Observational, theoretical, experimental, and numerical approaches are all welcome. In this session, we particularly encourage discussion that can confirm how far our understanding of related topics has advanced and help define the new frontiers of ocean mixing research to be tackled in the next decade.

Co-Sponsor(s):
  • CT - Chemical Tracers, Organic Matter and Trace Elements
  • OB - Ocean Biology and Biogeochemistry
  • OM - Ocean Modeling
Index Terms:

4544 Internal and inertial waves [OCEANOGRAPHY: PHYSICAL]
4568 Turbulence, diffusion, and mixing processes [OCEANOGRAPHY: PHYSICAL]
4805 Biogeochemical cycles, processes, and modeling [OCEANOGRAPHY: CHEMICAL]
4815 Ecosystems, structure, dynamics, and modeling [OCEANOGRAPHY: BIOLOGICAL]
Primary Chair:  Toshiyuki Hibiya, University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan
Co-chairs:  Kelvin John Richards, University of Hawai’i at Mānoa, International Pacific Research Center, Honolulu, United States, Robert Pinkel, Univ California San Diego, La Jolla, CA, United States and Naomi Harada, Japan Agency for Marine-Earth Science & Technology, Yokosuka, Japan
Primary Liaison:  Toshiyuki Hibiya, Univ Tokyo, Tokyo, Japan
Moderators:  Toshiyuki Hibiya, Univ Tokyo, Tokyo, Japan and Naomi Harada, Japan Agency for Marine-Earth Science & Technology, Yokosuka, Japan
Student Paper Review Liaison:  Toshiyuki Hibiya, Univ Tokyo, Tokyo, Japan

Abstracts Submitted to this Session:

PS53A-01
The Relative Roles of Shear and Gravitationally Driven Turbulence in Driving Ocean Mixing (650146)
Gregory N Ivey1, Cynthia Bluteau2 and Nicole L Jones1, (1)University of Western Australia, Oceans Graduate School and Oceans Institute, Crawley, WA, Australia, (2)Université du Quebec à Rimouski, Institut des sciences de la mer, Rimouski, QC, Canada
PS53A-02
Long term observation of diapycnal diffusivities in a stratified coastal environment (638897)
Hidekatsu Yamazaki, Tokyo University of Marine Science and Technology, Tokyo, Japan, Wataru Aoyama, Tokyo University of Marine Science and Technology, Minato-ku, Japan and Gregory N Ivey, University Western Australia, Oceans Graduate School and Oceans Institute, Crawley, Western Australia, Australia
PS53A-03
Mixing and Upwelling Dynamics along the Continental Slope off Peru inferred from Tracer Release, Hydrographic and Microstructure Measurements (651229)
Martin Visbeck1, Marcus Dengler2, Toste S Tanhua3 and Madeleine Freund1, (1)GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany, (2)GEOMAR, Kiel, Germany, (3)Helmholtz Centre for Ocean Research Kiel, GEOMAR, Kiel, Germany
PS53A-04
Observations of tidally driven turbulence over topographic features on the continental slope of Tasmania. (655577)
Olavo Badaro Marques1, Matthew Alford2, Robert Pinkel3, Jennifer A MacKinnon1, Jonathan D Nash4, Jody M Klymak5 and Harper L Simmons6, (1)Scripps Institution of Oceanography, La Jolla, United States, (2)University of California San Diego, Scripps Institution of Oceanography, San Diego, United States, (3)Univ California San Diego, La Jolla, CA, United States, (4)Oregon State University, Corvallis, United States, (5)University of Victoria, Victoria, BC, Canada, (6)University of Alaska Fairbanks, Fairbanks, United States
PS53A-05
A New Parameterization of Tidal Mixing Enhanced over Rough Seafloor Topography (642770)
Toshiyuki Hibiya, University of Tokyo, Department of Earth and Planetary Science, Bunkyo-ku, Japan
PS53A-06
Ocean State Estimation with Turbulence Observation Data (642866)
Shuhei Masuda1, Satoshi Osafune2, Nozomi Sugiura3, Toshimasa Doi1 and Tadashi Hemmi4, (1)JAMSTEC Japan Agency for Marine-Earth Science and Technology, Kanagawa, Japan, (2)JAMSTEC, Yokosuka-City, Kanag, Japan, (3)Japan Agency for Marine-Earth Science and Technology, Research and Development Center for Global Change, Yokosuka, Japan, (4)JAMSTEC, Japan
PS53A-07
Simulation of the deep and intermediate Pacific meridional overturning circulation (642597)
Takao Kawasaki, Atmosphere and Ocean Research Institute, the University of Tokyo, Kashiwa, Chiba, Japan, Hiroyasu Hasumi, Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan, Yoshimasa Matsumura, The University of Tokyo, Atmosphere and Ocean Research Institute, Kashiwa, Japan, Hiroaki Tatebe, JAMSTEC Japan Agency for Marine-Earth Science and Technology, Research Center for Environmental Modeling and Application, Yokohama, Japan, Yoshiki Komuro, Institute of Arctic Climate and Environment Research, Japan Agency for Marine-Earth Science and Technology, Japan and Shogo Urakawa, Meteorological Research Institute, Japan Meteorological Agency, Tsukuba, Japan
See more of: Physical Oceanography: Mesoscale and Smaller