PL008
Turbulent pathways and deep ocean ventilation
Session ID#: 85293
Session Description:
There has been rapid progress in our understanding of how the deep and abyssal ocean communicates with mid-depth waters and the thermocline through turbulent processes and through southern polar dynamics. This session aims at bringing together studies that focus on the central role of turbulent processes in maintaining the ocean circulation and global tracer budgets, and thereby in the climate system. The key aim is to demonstrate the controlling connections of processes to the "big picture" circulation and tracer budgets, and not to focus exclusively on process studies or model-data analysis. Southern Ocean or Arctic dynamics, deep ocean diapycnal mixing, and boundary turbulence are just some of the processes of relevance which should be considered. Theoretical, observational and computational approaches are welcome and hybrid studies combining these approaches are particularly encouraged.
Index Terms:
4532 General circulation [OCEANOGRAPHY: PHYSICAL]
4562 Topographic/bathymetric interactions [OCEANOGRAPHY: PHYSICAL]
4568 Turbulence, diffusion, and mixing processes [OCEANOGRAPHY: PHYSICAL]
4599 General or miscellaneous [OCEANOGRAPHY: PHYSICAL]
Primary Chair: Ali Mashayek, Imperial College London, London, SW7, United Kingdom
Co-chairs: Lynne D Talley, University of California San Diego, La Jolla, CA, United States, Alberto Naveira Garabato, University of Southampton, National Oceanography Centre, Southampton, United Kingdom and Colm-cille Patrick Caulfield, University of Cambridge, BP Institute/DAMTP, Cambridge, United Kingdom
Primary Liaison: Ali Mashayek, Imperial College London, London, SW7, United Kingdom
Sensitivity of the ocean’s deep overturning circulation to Southern Ocean westerly winds. (642477)
Houssam Yassin, Princeton University, Atmospheric & Oceanic Sciences, Princeton, NJ, United States, Ali Mashayek, Imperial College London, London, SW7, United Kingdom and Geoff Stanley, University of New South Wales, Sydney, NSW, Australia
Deep Argo Quantifies Bottom Water Warming Rates in the Southwest Pacific Basin (643737)
Gregory C Johnson1, Sarah G Purkey2, Nathalie V Zilberman2 and Dean H Roemmich2, (1)NOAA Pacific Marine Environmental Laboratory, Seattle, WA, United States, (2)Scripps Institution of Oceanography UCSD, La Jolla, CA, United States
Ocean-ice interaction in subpolar Southern Ocean generates ocean pycnocline (644471)
Andreas Klocker, University of Tasmania, Institute for Marine and Antarctic Studies, Tasmania, TAS, Australia, Alberto Naveira Garabato, University of Southampton, National Oceanography Centre, Southampton, United Kingdom, Alexander Forryan, University of Southampton, Southampton, United Kingdom, Casimir de Lavergne, LOCEAN Laboratory, Sorbonne Université-CNRS-IRD-MNHN, Paris, France and Stephen R Rintoul, Antarctic Climate and Ecosystems Cooperative Research Centre (ACE CRC), Hobart, Australia
Long-term observations of the variability of abyssal plain currents from Ocean Networks Canada’s seafloor observatory. (644852)
Steven F Mihaly, University of Victoria, Victoria, BC, Canada, Manman Wang, Ocean Networks Canada, Victoria, BC, Canada and Richard Thomson, Inst Ocean Sciences, Sidney, BC, Canada
The Impact of Turbulence and Convection on Transport in the Southern Ocean (644975)
Taimoor Sohail, Australian National University, Research School of Earth Sciences, Acton, Australia, Catherine Ann Vreugdenhil, University of Cambridge, Cambridge, United Kingdom, Bishakhdatta Gayen, University of Melbourne, Research School of Earth Sciences, Melbourne, VIC, Australia and Andrew M. Hogg, Australian National University, Canberra, ACT, Australia
Testing the Assumptions Underlying Ocean Mixing Methodologies using Direct Numerical Simulations (646226)
Colm-cille Patrick Caulfield1, John Ryan Taylor2, Steve de Bruyn Kops3 and Paul F. Linden2, (1)University of Cambridge, BP Institute/DAMTP, Cambridge, United Kingdom, (2)University of Cambridge, DAMTP, Cambridge, United Kingdom, (3)University of Massachusetts Amherst, Department of Mechanical and Industrial Engineering, Amherst, MA, United States
The Arrested Ekman Layer Escapes! Ventilation of the Bottom Boundary Layer by Internal Swash. I. N/f ~ 4 and N / slope f ~ O(1) (646337)
Kurt L Polzin, Woods Hole Science Center Falmouth, Falmouth, MA, United States, Takashi Ijichi, University of Tokyo, Bunkyo-ku, Japan, Alberto Naveira Garabato, University of Southampton, Southampton, SO14, United Kingdom, Carl Spingys, University of Liverpool, United Kingdom and Alex Forryan, University of Southampton, Southampton, United Kingdom
Connections between the large-scale flow and turbulence in the Samoan Passage (647170)
Jesse Cusack1, Gunnar Voet1, Matthew H Alford1, James B Girton2, Glenn S Carter3, Lawrence J Pratt4, Shuwen Tan5, Kelly Pearson3 and Dimitris Menemenlis6, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)University of Washington, Applied Physics Laboratory, Seattle, WA, United States, (3)University of Hawaii at Manoa, Honolulu, HI, United States, (4)Woods Hole Oceanographic Institution, Woods Hole, MA, United States, (5)Institute of Oceanology, Chinese Academy of Sciences, Qungdao, China, (6)NASA Jet Propulsion Laboratory, Pasadena, CA, United States
Transport and Mixing from Observed Tracer Fields Structuration by Mid-depth Zonal Jets in the Tropical Pacific Ocean. (647626)
Audrey Delpech1, Sophie E Cravatte2, Frederic Marin2, Yves Morel1, Claire Menesguen3 and Elodie Kestenare1, (1)Laboratoire d’Etudes Géophysiques et d’Océanographie Spatiale, LEGOS – UMR 5566 CNES-CNRS-IRD-UPS, Toulouse, France, (2)LEGOS, Université de Toulouse, (IRD, CNES, CNRS, UPS), Toulouse, France, (3)Laboratoire d'Océanographie Physique et Spatiales, LOPS – UMR 6523 Ifremer-CNRS-IRD-UBO, Brest, France
Abyssal Stratification Decrease in the Southwest Pacific Basin: Implications for Heat Fluxes and Internal Tidal Generation (648351)
Helen Zhang1, Caitlin B Whalen1, Nirnimesh Kumar2 and Sarah G Purkey3, (1)Applied Physics Laboratory University of Washington, Seattle, WA, United States, (2)University of Washington, Department of Civil & Environmental Engineering, Seattle, WA, United States, (3)Scripps Institution of Oceanography, University of California San Diego, San Diego, CA, United States
Neutral Surface Topology (648563)
Geoff Stanley, University of New South Wales, School of Mathematics and Statistics, Sydney, NSW, Australia
Abyssal Mixing in the Southwest Pacific Basin (648606)
Ratnaksha Lele1, Sarah G Purkey2, Jonathan D Nash3, Andreas M Thurnherr4, Caitlin B Whalen5, Lynne D Talley6, Jennifer A MacKinnon7, Gunnar Voet7 and Sabine Mecking5, (1)University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Scripps Institution of Oceanography, University of California San Diego, San Diego, CA, United States, (3)Oregon State Univ, Corvallis, OR, United States, (4)Lamont-Doherty Earth Observatory, Columbia University, New York, United States, (5)Applied Physics Laboratory University of Washington, Seattle, WA, United States, (6)University of California San Diego, La Jolla, CA, United States, (7)Scripps Institution of Oceanography, La Jolla, CA, United States
Hydraulics and mixing in the deep branch of the Indonesian Throughflow (649025)
Shuwen Tan1, Lawrence J Pratt2, Dongliang Yuan3 and Corry Corvianawatie1, (1)Institute of Oceanology, Chinese Academy of Sciences, Qingdao, China, (2)WHOI, Woods Hole, MA, United States, (3)Institute of Oceanology, CAS, Qingdao, China
What sets the vertical profile of the deep ocean stratification? (649225)
Raffaele M Ferrari, Massachusetts Institute of Technology, Cambridge, MA, United States and Eli Tziperman, Department of Earth and Planetary Sciences, Harvard University, Cambridge, MA, USA., Cambridge, MA, United States
Computationally Efficient Ways to form Approximately Neutral Surfaces (649348)
Trevor J McDougall1, Geoff Stanley1,2, Casimir de Lavergne3 and Paul M Barker2, (1)University of New South Wales, Sydney, NSW, Australia, (2)University of New South Wales, School of Mathematics and Statistics, Sydney, NSW, Australia, (3)LOCEAN Laboratory, Sorbonne Université-CNRS-IRD-MNHN, Paris, France
Mixing in Steady-State Dense Currents (650100)
Claudia Cenedese, Woods Hole Oceanographic Institution, Physical Oceanography Department, Woods Hole, MA, United States, Jim McElwaine, University of Durham, Department of Earth Sciences, Durham, United Kingdom and Jeffrey M. Heninger, University of Texas at Austin, Department of Physics, United States
A Budget for Mixing and Transformation in a Partially Enclosed Deep Basin (650920)
Carl Spingys1, Alberto Naveira Garabato2, Sonya Legg3, Kurt L Polzin4, Einar Povl Abrahamsen5, Alex Forryan1 and Christian E. Buckingham6, (1)University of Southampton, Southampton, United Kingdom, (2)University of Southampton, Southampton, SO14, United Kingdom, (3)Princeton University, Princeton, NJ, United States, (4)WHOI, Woods Hole, MA, United States, (5)British Antarctic Survey, Cambridge, United Kingdom, (6)Université de Bretagne Occidentale, Département de Physique, Brest, France
Abyssal Circulation Driven By Near-Boundary Mixing: Water Mass Transformations and Interior Stratification (651142)
Henri F Drake, Massachusetts Institute of Technology, Atmospheric and Oceanic Sciences, Cambridge, MA, United States, Raffaele M Ferrari, MIT, Cambridge, MA, United States and Jörn Callies, California Institute of Technology, Pasadena, CA, United States
A High-resolution Numerical Study of a Hydrothermal Plume (651408)
Greace Crystle1, Guillaume Roullet1 and Maarten J Molemaker2, (1)LOPS, IUEM, University of Brest, Brest, France, (2)UCLA, Los Angeles, CA, United States
More Evidence for Boundary Mixing in the Deep Ocean (652383)
Laurence Armi, University of California San Diego, La Jolla, CA, United States, Bofu Zheng, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Jinbo Wang, NASA Jet Propulsion Laboratory, Pasadena, CA, United States
Impact of surface wind and buoyancy forcing on the energetics and transport in a rotating wind-forced horizontal convection model of a reentrant channel (652801)
Varvara Zemskova, University of Toronto, Physics, Toronto, ON, Canada, Brian L White, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States and Alberto D Scotti, University of North Carolina at Chapel Hill, Marine Sciences, Chapel Hill, NC, United States
Ocean's mix and match (653024)
Ali Mashayek, Imperial College London, London, SW7, United Kingdom and Laura Cimoli, University of Oxford, Oxford, United Kingdom
Hydraulic Control and Overturn Age in an Abyssal Channel (654206)
Glenn S Carter1, Lawrence J Pratt2, Matthew H Alford3, Gunnar Voet4, James B Girton5, Shuwen Tan6, Kelly Pearson1 and Jesse Cusack4, (1)University of Hawaii at Manoa, Honolulu, HI, United States, (2)WHOI, Woods Hole, MA, United States, (3)Scripps Institution of Oceanography, UC San Diego, La Jolla, CA, United States, (4)Scripps Institution of Oceanography, La Jolla, CA, United States, (5)Applied Physics Laboratory, University of Washington, Seattle, WA, United States, (6)Institute of Oceanology, Chinese Academy of Sciences, Qungdao, China
Near-Boundary Turbulent Dissipation, Suspended Particle Dispersal, and Stratified Turbulent Layers: a Comparison of Two Eastern Pacific Submarine Canyons (654255)
Erika E McPhee-Shaw, Western Washington University, Department of Environmental Sciences, Bellingham, WA, United States, Amy Frances Waterhouse, Scripps Institution of Oceanography, La Jolla, CA, United States, Eric L Kunze, U of Washington, Seattle, WA, United States, James B Girton, Applied Physics Laboratory, University of Washington, Seattle, WA, United States and Jingping Xu, Southern University of Science and Technology (SUSTech), Department of Ocean Science & Engineering, Guangdong, China
The Impact of Eddy Advection and Diffusion on Passive Tracer Transport in a Global Ocean Model (656753)
Asher Riaz1, N L Bindoff2, Peter G Strutton1 and Simon Wotherspoon3, (1)Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, TAS, Australia, (2)Univ Tasmania, Hobart, Australia, (3)University of Tasmania, Hobart, TAS, Australia
