PS24A:
Recent Advancements in Stratified Turbulent Mixing III Posters


Session ID#: 28090

Session Description:
This session will explore recent developments in understanding mixing in stratified turbulent shear flows and its role in ocean circulation. The significance of mixing to the ocean energy cycle has long been recognized. While pioneering work developed a basic understanding of turbulence generated by shear instabilities and its efficiency in overcoming stable stratification, significant advancements have been made in recent years. A new framework based on the concept of Available Potential Energy has shed light on the role of mixing in the ocean energy cycle and its efficiency in flows driven either by shear or convective overturning, both characteristic of intermittent ocean turbulence. Meanwhile, new mechanisms for the development of shear instabilities are being discovered through numerical modeling and observations. In addition, meta-analyses of increasingly resolved DNS and ocean microstructure are leading to improved mixing parameterizations for use in ocean models and interpreting observational data. The talks in this session will span theory, experiments, modeling, and observational approaches to discuss recent advancements, new techniques and outstanding questions in turbulent mixing. We encourage submissions focusing on mixing across a range of ocean scales and settings, including global, coastal and estuarine, and its influence on biogeochemical processes.
Primary Chair:  Brian L White, University of North Carolina at Chapel Hill, Marine Sciences, Chapel Hill, NC, United States
Co-chairs:  Stephen G Monismith, Stanford University, Civil and Environmental Engineering, Stanford, CA, United States and Jeffrey R Koseff, Stanford University, Civil and Environmental Engineering, Stanford, CA, United States
Moderators:  Brian L White, University of North Carolina at Chapel Hill, Department of Marine Science, Chapel Hill, NC, United States and Stephen G Monismith, Stanford University, Oceans, Stanford, United States
Student Paper Review Liaison:  Stephen G Monismith, Stanford University, Oceans, Stanford, United States
Index Terms:

4524 Fine structure and microstructure [OCEANOGRAPHY: PHYSICAL]
4532 General circulation [OCEANOGRAPHY: PHYSICAL]
4534 Hydrodynamic modeling [OCEANOGRAPHY: PHYSICAL]
4568 Turbulence, diffusion, and mixing processes [OCEANOGRAPHY: PHYSICAL]
Cross-Topics:
  • CD - Coastal Dynamics
  • E - Estuarine Processes
  • OM - Ocean Modeling
  • PO - Physical Oceanography: Other

Abstracts Submitted to this Session:

On Energy and Mixing in the Thermocline (307899)
William K Dewar, Florida State Univ, Tallahassee, United States and James C McWilliams, University of California, Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, United States

Energy transfer and turbulence in oscillatory baroclinic boundary flows (307983)

Pranav Suresh Puthan1, Masoud Jalali2, Vamsi Krishna Chalamalla2,3 and Sutanu Sarkar4, (1)University of California San Diego, La Jolla Shores, CA, United States, (2)University of California San Diego, La Jolla, CA, United States, (3)University of North Carolina at Chapel Hill, Chapel Hill, NC, United States, (4)Univ California at San Diego, La Jolla, CA, United States
Stratified and Unstratified Mixing: A Large-Eddy Simulation investigation (310637)
Ashley Brereton, National Oceanography Centre, Liverpool, United Kingdom, Jeff Polton, National Oceanography Center, Liverpool, United Kingdom and Andres E Tejadas-Martinez, University of South Florida, Civil and Environmental Engineering, Tampa, FL, United States
Initializing DNS Turbulence Models to Represent Naturally Occurring Turbulence (314667)
Vashkar Bernard Palma, University of Massachusetts Dartmouth, New Bedford, MA, United States, Daniel G MacDonald, U Mass/Dartmouth-Est&Ocean Sci, Fairhaven, MA, United States and Mehdi Raessi, University of Massachusetts Dartmouth, Mechanical Engineering, North Dartmouth, MA, United States
Sensitivity of Vortex Pairing and Mixing to Initial Conditions in Stratified Shear Flows (318831)
Wenjing Dong1, Edmund W Tedford2, Mona Rahmani3 and Gregory A Lawrence2, (1)New York University, New York, NY, United States, (2)University of British Columbia, Department of Civil Engineering, Vancouver, BC, Canada, (3)UBC, Vancouver, BC, Canada
Does Scale Matter? Bridging the Gap Between Field and Laboratory Observations of Turbulence (321212)
Daniel G MacDonald, University of Massachusetts Dartmouth, Civil and Environmental Engineering, New Bedford, MA, United States, Mehdi Raessi, University of Massachusetts Dartmouth, Mechanical Engineering, North Dartmouth, MA, United States and Anneliese L Schmidt, University of Massachusetts Dartmouth, Civil and Environmental Engineering, North Dartmouth, MA, United States
The Role of Intermittency in Internal Wave Driven Lateral Mixing (325166)
Cimarron J Wortham1, Marie-Pascale Lelong1, Jeffrey J Early2, Eric L Kunze3 and Miles A Sundermeyer4, (1)NorthWest Research Associates, Boulder, United States, (2)NorthWest Research Associates, Seattle, United States, (3)NorthWest Research Associates, Redmond, WA, United States, (4)School Marine Sci. & Tech., New Bedford, United States
Geostrophic Turbulence Observed in Eddy Vertical Structure Variability (322529)
Jacob Steinberg, WHOI, Seattle, United States and Charles Eriksen, University of Washington, Seattle, WA, United States
The Effect of Background Salinity Gradient on Langmuir Turbulence (305605)
Yalin Fan, Naval Research Laboratory, Stennis Space Center, United States, Ewa Jarosz, U.S. Naval Research Laboratory, Stennis Space Center, United States, Zhitao Yu, US Naval Research Laboratory, Washington, DC, United States, William Rogers, U. S. Naval Research Laboratory, Stennis Space Center, United States, Tommy G Jensen, Naval Research Laboratory, Stennis Space Center, MS, United States, Peter P Sullivan, NSF National Center for Atmospheric Research, Boulder, United States and Junhong Liang, Louisiana State University, Department of Oceanography and Coastal Sciences, Baton Rouge, LA, United States
Large-eddy Simulation of the Effects of Different Stokes Drift Estimations on the Turbulence in the Upper Ocean (315610)
Ying Qiu and Shuang Li, Ocean College, Zhejiang University, Institute of Physical Oceanography, Zhoushan, China
Storm-driven Turbulent Stratified Mixing from Underwater Gliders (316003)
Jeff R Carpenter1, Larissa Schultze1 and Lucas Merckelbach2, (1)Helmholtz-Zentrum Geesthacht, Institute of Coastal Research, Geesthacht, Germany, (2)Helmholtz-Zentrum hereon, Institute of Coastal Ocean Dynamics, Geesthacht, Germany
Analysis of Turbulence in the Weddell Sea: Observations and Modeling (316865)
Aditya Narayanan and Murali K, Indian Institute of Technology Madras, Ocean Engineering, Chennai, India
Turbulent mixing induced by Cold Water Intrusion over the southwestern East Sea (317882)
Seongbong Seo1, Young-Gyu Park2, Chanhyung Jeon3, Hong Sik Min4, Dong Guk Kim4 and Jae-Hun Park5, (1)Korea Institute of Ocean Science & Technology, Seoul, Korea, Republic of (South), (2)KIOST, Korea Institute of Ocean Science and Technology, Busan, South Korea, (3)Department of Oceanography, Pusan National University, Busan, South Korea, (4)KIOST, Ocean Circulation and Climate Research Center, Busan, South Korea, (5)Inha University, Department of Ocean Sciences, Incheon, Korea, Republic of (South)
Penetrative convection in the bottom nepheloid layer of a lake (325653)
Edmund W Tedford1, Greg Lawrence1, Roger Pieters2, Sarah Chang1, Jason Olsthoorn1 and Tomy Doda3, (1)University of British Columbia, Civil Engineering, Vancouver, BC, Canada, (2)University of British Columbia, Department of Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada, (3)ETH Swiss Federal Institute of Technology Zurich, Zurich, Switzerland
A Simplified Mixing Model of a Shallow Lake (325937)
Jason Olsthoorn, Edmund W Tedford and Greg Lawrence, University of British Columbia, Civil Engineering, Vancouver, BC, Canada

See more of: Physical Oceanography: Mesoscale and Smaller