PO005:
Multiscale topographic effects on large-scale flow: From wakes and lee waves to small-scale turbulence and mixing


Session ID#: 27719

Session Description:
There has been a resurgence in research on stratified flow over topography in the ocean, with recent evidence suggesting its importance on the large-scale ocean circulation through topographic form drag, turbulence and mixing. The interaction of large-scale, low-frequency geostrophic currents with steep topography produces a rich submesoscale and mesoscale vorticity field that initiates a cascade of energy down to small scales and turbulence. Over more gentle topography, lee waves arise and may break nearby or propagate and eventually break elsewhere, leading to local and remote turbulence and mixing. Together, wakes and lee waves significantly impact the topographic form drag and play an important role in energy and momentum budgets of the low-frequency flow. Despite extensive research on stratified flow over topography, our ability to predict and parameterize oceanic flow at spatial scales comparable to the topography is lacking. This session solicits abstracts employing modeling, observations, or theory to link basin-scale flows to topographic lee waves/wake effects, thereby advancing the state of knowledge of (a) the science of flow at topography, boundary layers, and downscaling and (b) models and forecasts of the relevant processes.
Primary Chair:  Oliver B Fringer, Stanford University, Department of Civil and Environmental Engineering, Stanford, CA, United States
Co-chairs:  Ganesh Gopalakrishnan1, Ruth C Musgrave2 and Gunnar Voet1, (1)Scripps Institution of Oceanography, La Jolla, CA, United States(2)Massachusetts Institute of Technology, Department of Mechanical Engineering, Cambridge, MA, United States
Index Terms:
Cross-Topics:
  • OM - Ocean Modeling
  • PS - Physical Oceanography: Mesoscale and Smaller

Abstracts Submitted to this Session:

Eric Mayer, Stanford University, Civil and Environmental Engineering, Stanford, CA, United States and Oliver B Fringer, Stanford Univ-Civil/Envir Engg, Stanford, CA, United States
Shuiming Chen1, Bo Qiu2, Daniel L Rudnick3 and Shaun Johnston3, (1)University of Hawaii at Manoa, Honolulu, HI, United States, (2)Univ Hawaii Manoa, Honolulu, HI, United States, (3)Scripps Institution of Oceanography, La Jolla, CA, United States
Brad Perfect, University of Washington Seattle, Seattle, WA, United States, James J Riley, University of Washington Seattle Campus, Seattle, WA, United States and Nirnimesh Kumar, University of Washington Seattle Campus, Civil and Environmental Engineering, Seattle, WA, United States
Weifeng Zhang, Woods Hole Oceanographic Institution, Department of Applied Ocean Physics & Engineering, Woods Hole, MA, United States and Steven J Lentz, Woods Hole Oceanographic Inst, Woods Hole, MA, United States
Joel C Wesson, Hemantha W Wijesekera and David W Wang, Naval Research Laboratory, Stennis Space Center, MS, United States
André Lopes Brum, Universidade Federal do Rio Grande, Pelotas, Brazil, José Luiz Azevedo, Federal University of Rio Grande, Instituto de Oceanografia, Rio Grande, Brazil, Leopoldo Rota de Oliveira, FURG, Rio Grande, Rio Grande do Sul, Brazil and Paulo Henrique Rezende Calil, Universidade Federal do Rio Grande, Institute of Oceanography, Rio Grande, Brazil
Kristin Fitzmorris and Daniel L Rudnick, Scripps Institution of Oceanography, La Jolla, CA, United States
David S Trossman, University of Texas at Austin, Institute for Computational Engineering and Sciences, Austin, TX, United States and Brian K Arbic, University of Michigan, Ann Arbor, MI, United States
Luwei Yang1, Maxim Nikurashin1, Andrew M. Hogg2 and Bernadette Sloyan3, (1)University of Tasmania, Institute for Marine and Antarctic Studies, Hobart, Australia, (2)Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia, (3)CSIRO, Oceans and Atmosphere, Hobart, Australia
Sutanu Sarkar, Masoud Jalali, Jose Luis Ortiz Tarin, Karu Chongsiripinyo and Geno R Pawlak, University of California San Diego, La Jolla, CA, United States
Callum James Shakespeare, Australian National University, Research School of Earth Sciences, Canberra, Australia and Andrew M. Hogg, Australian National University, Research School of Earth Sciences, Canberra, ACT, Australia
Joseph H Lacasce, University of Oslo, Meteorology and Oceanography, Oslo, Norway and Jostein Brændshøi, University of Oslo, Geosciences, Oslo, Norway
Jody M Klymak, University of Victoria, Victoria, BC, Canada
Louis St Laurent, Woods Hole Oceanographic Institution, Physical Oceanography, Woods Hole, MA, United States, Harper L Simmons, School of Fisheries and Ocean Sciences, Fairbanks, AK, United States, Sophia Merrifield, Scripps Institution of Oceanography, La Jolla, CA, United States and Eric J Terrill, Scripps Institution of Oceanography – UC San Diego, La Jolla
Thomas Peacock, MIT, Cambridge, MA, United States, Ruth C Musgrave, Massachusetts Institute of Technology, Department of Mechanical Engineering, Cambridge, MA, United States, Jae-Hun Park, INHA, South Korea and Magdalena Andres, WHOI, Woods Hole, MA, United States
Celia Yun Ou, University of California San Diego, Scripps Institution of Oceanography, La Jolla, CA, United States and Shaun Johnston, Scripps Institution of Oceanography, La Jolla, CA, United States
Masoud Jalali and Sutanu Sarkar, University of California San Diego, La Jolla, CA, United States
Sarah Ellen Zedler, University of Hawaii at Manoa, Honolulu, HI, United States, Brian Powell, Univ. of Hawaii, Honolulu, HI, United States, Bo Qiu, Univ Hawaii Manoa, Honolulu, HI, United States and Daniel L Rudnick, Scripps Institution of Oceanography, La Jolla, CA, United States
Zongze Lu, Ocean College, Zhejiang University, Institute of Physical Oceanography, Zhoushan, China and Shuang Li, Horn Point Lab., Cambridge, MD, United States
Jennifer A MacKinnon1, Matthew H Alford2, Gunnar Voet2 and Ali Mashayek3, (1)University of California San Diego, La Jolla, CA, United States, (2)Scripps Institution of Oceanography, La Jolla, CA, United States, (3)Massachusetts Institute of Technology, La Jolla, CA, United States
Eisuke Tsutsumi1, Takeshi Matsuno2, Ren-Chieh Lien3, Hirohiko Nakamura4, Tomoharu Senjyu2, Xinyu Guo5 and Jing Zhang6, (1)Kyushu Univ, Research Institute for Applied Mechanics, Kasuga, Japan, (2)Kyushu Univ, Fukuoka, Japan, (3)Applied Physics Laboratory, Seattle, WA, United States, (4)Kagoshima Univ, Kagoshima, Japan, (5)Ehime University, Center for Marine Environmental Studies, Matsuyama, Japan, (6)Fac Sci, Univ. of Toyama, Toyama, Japan
Anastasiia Domina1, Matthew R Palmer2, Vasiliy Vlasenko3, Nataliya Stashchuk3, Jonathan Sharples4 and Mattias Green5, (1)University of Liverpool, School of Environmental Sciences, Liverpool, United Kingdom, (2)NOCL, United Kingdom, (3)University of Plymouth, Plymouth, United Kingdom, (4)University of Liverpool, Earth, Ocean and Ecological Sciences, Liverpool, L69, United Kingdom, (5)Bangor University, School of Ocean Sciences, Menai Bridge, United Kingdom
Yu-Hsin Cheng and Ming-Huei Chang, IONTU Institute of Oceanography National Taiwan University, Taipei, Taiwan
Magdalena Andres1, Ruth C Musgrave1 and Thomas Peacock2, (1)WHOI, Woods Hole, MA, United States, (2)Dept of Mech Eng - RM 1-310, Cambridge, MA, United States
Danielle Wain, University of Bath, Bath, BA2, United Kingdom and Chris R Rehmann, Iowa State University, Ames, IA, United States
Kenneth Hughes1, Jody M Klymak1, William James Williams2 and Humfrey Melling3, (1)University of Victoria, Victoria, BC, Canada, (2)Fisheries and Oceans Canada, Institute of Ocean Sciences, Sidney, BC, Canada, (3)Inst Ocean Sciences, Sidney, BC, Canada
Zhankun Wang, Cooperative Institute for Climate and Satellites, University of Maryland, College Park, MD, United States, Kurt L Polzin, WHOI, Woods Hole, MA, United States, Steven Francis DiMarco, Texas A & M University, College Station, TX, United States, John Toole, Woods Hole Oceanographic Institution, Woods Hole, MA, United States, Angel Ruiz Angulo, Centro de Ciencias de la Atmosfera, UNAM, Mexico D.F., Mexico, Miguel Costa Tenreiro, CICESE, Physical Oceanography, Ensenada, Mexico, Binbin Wang, Texas A&M University College Station, College Station, TX, United States and Christian Nygren, Texas A & M University, Oceanography, College Station, TX, United States
Dafydd Gwyn Evans1, Eleanor Frajka-Williams2, Sheldon Bacon3, Alex Forryan2 and Kurt L Polzin4, (1)University of Southampton, Soutampaton, United Kingdom, (2)National Oceanography Centre, Southampton, United Kingdom, (3)University of Southampton, Southampton, United Kingdom, (4)WHOI, Woods Hole, MA, United States
Sophia Merrifield1, Eric J Terrill2, Travis Allen Schramek1, Thomas Cook1, Mark P Otero1, Carlos Garcia-Moreno1, Eric Gallimore1 and Myles Syverud1, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)SIO, UCSD, La Jolla, CA, United States
Gunnar Voet1, Matthew H Alford1, Jennifer A MacKinnon1, Ali Mashayek1 and Jonathan D Nash2, (1)Scripps Institution of Oceanography, La Jolla, CA, United States, (2)Oregon State Univ, Corvallis, OR, United States
Siddhartha Bishnu, Florida State University, Tallahassee, FL, United States and William K Dewar, Florida State Univ, Tallahassee, FL, United States
Ruth C Musgrave1, Glenn Flierl2 and Thomas Peacock2, (1)WHOI, Woods Hole, MA, United States, (2)MIT, Cambridge, MA, United States
Mika Natalie Siegelman1, Mark A Merrifield2, Brian Powell3, Harper L Simmons4, Sarah Ellen Zedler5, Matthew H Alford6, Hemantha W Wijesekera7 and Jennifer A MacKinnon6, (1)University of Hawaii, at Manoa, Physical Oceanography, Honolulu, HI, United States, (2)Sch Ocean & Earth Sci & Tech, Honolulu, HI, United States, (3)Univ. of Hawaii, Honolulu, HI, United States, (4)School of Fisheries and Ocean Sciences, Fairbanks, AK, United States, (5)University of Hawaii at Manoa, Honolulu, HI, United States, (6)Scripps Institution of Oceanography, La Jolla, CA, United States, (7)Naval Research Lab Stennis Space Center, Stennis Space Center, MS, United States
Gregory LeClaire Wagner, Glenn Flierl and Raffaele M Ferrari, MIT, Cambridge, MA, United States
Idalia Alicia Machuca, University of British Columbia, Department of Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada and Susan Elizabeth Allen, Univ British Columbia, Earth, Ocean and Atmospheric Sciences, Vancouver, BC, Canada
Karl Richard Helfrich, Woods Hole Oceanographic Institution, Physical Oceanography Department, Woods Hole, MA, United States and Brian L White, University of North Carolina at Chapel Hill, Chapel Hill, NC, United States
Kaushik Srinivasan, University of California Los Angeles, Atmospheric and Oceanic Sciences, Los Angeles, CA, United States, James C McWilliams, UCLA, Los Angeles, CA, United States, Maarten J Molemaker, Department of Atmospheric and Oceanic Sciences, University of California Los Angeles, Los Angeles, CA, United States and Alexander F Shchepetkin, UCLA IGPP, Los Angeles, CA, United States