PL53B:
Turbulent Pathways and Deep-Ocean Ventilation II

Session ID#: 92701

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.
Co-Sponsor(s):
  • OM - Ocean Modeling
  • PC - Past, Present and Future Climate
  • PS - Physical Oceanography: Mesoscale and Smaller
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, United Kingdom
Co-chairs:  Lynne D Talley, Scripps Institution of Oceanography, 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, United Kingdom
Moderators:  Ali Mashayek, Imperial College London, London, United Kingdom and Lynne D Talley, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States
Student Paper Review Liaisons:  Ali Mashayek, Imperial College London, London, United Kingdom and Lynne D Talley, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States

Abstracts Submitted to this Session:

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, Ocean and Earth Science, Southampton, United Kingdom, Carl Spingys, University of Liverpool, United Kingdom and Alex Forryan, University of Southampton, Southampton, United Kingdom
Importance of mesoscale advection in setting AMOC pathways and timescales (653637)
Igor V Kamenkovich, RSMAS, Miami, FL, United States and Zulema D Garraffo, NOAA/EMC--IMSG Scientist III, College Park, MD, United States
The transition to turbulence within internal tide boundary layers in the abyssal ocean. (653269)
Bryan Kaiser and Lawrence J Pratt, WHOI, Woods Hole, MA, United States
Does lateral stirring really take place along neutral surfaces in double-diffusive regions of the oceans? (652184)
Remi Tailleux1, Gabriel A. Wolf2, David Ferreira2 and Till Kuhlbrodt2, (1)University of Reading, Reading, RG6, United Kingdom, (2)University of Reading, Reading, United Kingdom
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
Neutral Surface Topology (648563)
Geoff Stanley, University of New South Wales, School of Mathematics and Statistics, Sydney, NSW, 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
Mixing Properties of Stratified Turbulence Forced by Breaking Internal Gravity Waves (647249)
Christopher Howland1, John Ryan Taylor1 and Colm-cille Patrick Caulfield2, (1)University of Cambridge, DAMTP, Cambridge, United Kingdom, (2)University of Cambridge, BP Institute/DAMTP, Cambridge, United Kingdom
The Impact of Turbulence and Convection on Transport in the Southern Ocean (644975)
Taimoor Sohail1, Catherine Ann Vreugdenhil2, Bishakhdatta Gayen3 and Andrew M Hogg1, (1)Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, (2)University of Cambridge, Cambridge, United Kingdom, (3)University of Melbourne, Mechanical Engineering, Melbourne, Australia
Abyssal Circulation Driven By Near-Boundary Mixing: Water Mass Transformations and Interior Stratification (651142)
Henri F Drake, Massachusetts Institute of Technology, Earth, Atmospheric, and Planetary Sciences, Cambridge, MA, United States, Raffaele M Ferrari, MIT, Cambridge, United States and Jörn Callies, California Institute of Technology, Pasadena, CA, United States