IUTAM - rotating stratified turbulence and turbulence in the atmosphere and oceans

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Workshop theme

The goal of this IUTAM/INI Symposium is to bring recent theoretical, experimental and numerical progress in this field to the community of atmospheric and oceanic scientists who could use it to improve their integrated studies of complex systems. The workshop will consist of 3 days devoted to studies of canonical flows and turbulence in its most theoretically accessible form. This will be followed by 2 days of presentations from the community studying realistic atmospheric and oceanic flows in which turbulence and mixing play an important role, but one involving the full range of complications and numerical constraints. The two groups of people will thereby be encouraged to share perspectives.

Specific challenges to be addressed in the first three days include:

The emergence of organised structures (vortices and fronts) and how they interact with the smaller dissipative scales.
The relative roles played by linear wave propagation and nonlinear vortex stretching in the formation of columnar and pancake vortices.
What can we learn by distinguishing between waves and vortices in geophysical turbulence? When is `balance' useful in describing such flows? How does balance depend on scale?
The influence of large-scale anisotropy on the energy cascade and small-scale dynamics.
The influence of rotation and stratification on mixing.
Do one-point and two-point turbulence models retain the relevant physics to cope with rotation and stratification?

In the two days the atmosphere-ocean community will be invited to discuss their most recent challenges. Topics will include:

Resolved convection versus convective adjustment in numerical models.
What equations need to be solved? What approximations are valid? How to cope with unresolved turbulence?
What are the effects of the commonly used numerical short-cuts?
Boundary-layer turbulence.
The influence of water in three phases and the consequent latent heating on the turbulence.
Predictability.
The dynamical role of the tropopause.
Tracer mixing barriers.

Speakers will include:

F Busse (University of Bayreuth)
G Carnevale (UCSD)
J-M Chomaz (CNRS-Ecole Polytechnique)
J Herring (National Center for Atmospheric Research)
D Holm (Imperial College London)
J McWilliams (UCLA)
P Rhines (University of Washington)
J Riley (University of Washington)

Timetable

Monday 8th December 2008
08:30 to 09:25	Registration	No Room Required
09:15 to 09:20	Ben Mestel - Welcome	No Room Required
09:20 to 09:30	Julian Hunt University College London Introduction	Room 1
09:30 to 10:00	Peter Rhines University of Washington Eddies and circulation: lessons from oceans, atmospheres and the GFD lab	Room 1
10:00 to 10:30	Andrew Thompson University of Cambridge Jet formation and transport in baroclinic turbulence with simple topography	Room 1
10:30 to 11:00	The turbulent equilibration of an unstable baroclinic jet	Room 1
11:00 to 11:30	Coffee	No Room Required
11:30 to 12:00	George Carnevale University of California, San Diego Inertial instability in rotating and stratified flow	Room 1
12:00 to 12:30	Paul Billant Centre de Physique Théorique de l’Ecole Polytechnique (CPHT) Zigzag instability of vortex arrays in stratified and rotating fluids	Room 1
12:30 to 13:30	Lunch at Wolfson Court	No Room Required
14:00 to 14:30	Patrice Meunier Institut de Recherche sur les Phénomènes Hors Equilibre Instabilities of a columnar vortex in a stratified fluid	Room 1
14:30 to 15:00	Peter Davidson University of Cambridge Structure formation in rotating turbulence	Room 1
15:00 to 16:00	Tea	No Room Required
16:00 to 16:30	Chuong Tran University of St Andrews Local transfer and spectra of a diffusive field advected by large-scale incompressible flows	Room 1
16:30 to 17:00	Victor Shrira Keele University Singular focusing of sub-inertial internal waves on the `non-traditional’ beta-plane	Room 1
17:00 to 17:45	Gong Show	No Room Required
17:45 to 18:45	Wine Reception	No Room Required
18:45 to 19:30	Dinner at Wolfson Court (Residents Only)	No Room Required

Tuesday 9th December 2008
09:30 to 10:00	James McWilliams University of California, Los Angeles Turbulent fluid dynamics at the margins of rotational and stratified control	Room 1
10:00 to 10:30	Peter Bartello McGill University Quasigeostrophic and stratified boussinesq turbulence	Room 1
10:30 to 11:00	Richard Scott University of St Andrews Effects of large-scale energy dissipation in geostrophic turbulence	Room 1
11:00 to 11:30	Coffee and Posters	No Room Required
11:30 to 12:00	Gregory Falkovich University of California, Irvine and Weizmann Institute of Science Two-dimensional turbulence inside a strong vortex	Room 1
12:00 to 12:30	Norihiko Sugimoto Keio University Spontaneous gravity wave radiation from nearly balanced rotational flows in a shallow water system	Room 1
12:30 to 13:30	Lunch at Wolfson Court	No Room Required
14:00 to 14:30	Unusual properties of turbulent convection and dynamos in spherical shells	Room 1
14:30 to 15:00	Steve Tobias University of Leeds Angular momentum transport and dynamos in magnetised rotating stratified systems	Room 1
15:00 to 16:00	Tea and Posters	No Room Required
16:00 to 16:30	Shigeo Yoden Kyoto University Jet formation in decaying two-dimensional turbulence on a rotating sphere	Room 1
16:30 to 17:00	James Cho Queen Mary University of London Magnetohydrodynamic shallow-water turbulence on the sphere	Room 1
17:00 to 18:30	Parellel discussion sessions	No Room Required
18:45 to 19:30	Dinner at Wolfson Court (Residents Only)	No Room Required

Wednesday 10th December 2008
09:30 to 10:00	Mike McIntyre University of Cambridge Beyond Lighthill: three ways to stay close to balance	Room 1
10:00 to 10:30	Jacques Vanneste University of Edinburgh Inertia-gravity-wave generation: a geometric-optics approach	Room 1
10:30 to 11:00	Miguel Bustamante University of Warwick Dynamics of nonlinear resonance clusters in atmosphere and oceans	Room 1
11:00 to 11:30	Coffee and Posters	No Room Required
11:30 to 12:00	Charlie Macaskill University of Sydney Vortex simulations of 2D turbulence in confined domains	Room 1
12:00 to 12:30	David Dritschel University of St Andrews The hyper-CASL algorithm: an accurate, efficient new approach to modelling complex atmospheric and oceanic flows	Room 1
12:30 to 13:30	Lunch at Wolfson Court	No Room Required
14:00 to 18:30	Excursion	No Room Required
19:00 to 23:00	Conference Dinner at St John's College (pre dinner drinks from 19:00)	No Room Required

Thursday 11th December 2008
09:30 to 10:00	Geoffrey Vallis Princeton University Is geostrophic turbulence relevant for tropospheric dynamics?	Room 1
10:00 to 10:30	Yoshifumi Kimura Nagoya University Spectral study of stably stratified turbulence	Room 1
10:30 to 11:00	Sergey Nazarenko University of Warwick Triple cascade and zonal flows in beta-plane turbulence	Room 1
11:00 to 11:30	Coffee and Posters	No Room Required
11:30 to 12:00	Takeshi Miyazaki University of Electro-Communications Equilibrium state of quasi-geostrophic point vortices	Room 1
12:00 to 12:30	Xavier Carton Université de Bretagne Occidentale Influence of external shear and strain on baroclinic vortex alignment	Room 1
12:30 to 13:30	Lunch at Wolfson Court	No Room Required
14:00 to 14:30	Jackson Herring National Center for Atmospheric Research Spectra and distribution functions of stably stratified turbulence	Room 1
14:30 to 15:00	Jim Riley University of Washington Stratified turbulence: a possible interpretation of some geophysical turbulence measurements	Room 1
15:00 to 16:00	Tea	No Room Required
16:00 to 16:30	Vladimir Zeitlin Laboratoire de Météorologie Dynamique (LMD-ENS) Once again about the parallel between stratification and rotation in hydrodynamics and between both and external magnetic field in MHD	Room 1
16:30 to 17:00	Joel Sommeria Collegio Carlo Alberto Application of statistical mechanics to the modeling of potential vorticity or density mixing	Room 1
17:30 to 18:30	Parallel discussion sessions	No Room Required
18:45 to 19:30	Dinner at Wolfson Court (Residents Only)	No Room Required

Friday 12th December 2008
09:30 to 10:00	Kraig Winters University of California, San Diego Bounds on the energetics and entropy production of a buoyancy forced ocean	Room 1
10:00 to 10:30	Bach Lien Hua IFREMER Simulations of stratified turbulence surrounding Meddy structures	Room 1
10:30 to 11:00	Marie-Pascale Lelong NorthWest Research Associates, USA Internal tide generation from surface tide/geostrophic Eddy interactions	Room 1
11:00 to 11:30	Coffee	No Room Required
11:30 to 12:00	Chantal Staquet Université Joseph Fourier Grenoble Propagation of the internal tide from a continental shelf: laboratory and numerical experiments	Room 1
12:00 to 12:30	David Straub McGill University 2d-3d energy exchanges in a homogeneous thin-aspect-ratio ocean	Room 1
12:30 to 13:30	Lunch at Wolfson Court	No Room Required
14:00 to 14:30	Colm-cille Caulfield University of Cambridge Richardson number-dependent bounds on buoyancy flux	Room 1
14:30 to 15:00	Three-dimensional stability of a horizontally sheared flow in a stably stratified fluid	Room 1
15:00 to 16:00	Tea	No Room Required
18:45 to 19:30	Dinner at Wolfson Court (Residents Only)	No Room Required

IUTAM - rotating stratified turbulence and turbulence in the atmosphere and oceans

Speakers

Peter Bartello McGill University
Paul Billant Centre de Physique Théorique de l’Ecole Polytechnique (CPHT)
Miguel Bustamante University of Warwick
George Carnevale University of California, San Diego
Xavier Carton Université de Bretagne Occidentale
Colm-cille Caulfield University of Cambridge
James Cho Queen Mary University of London
Peter Davidson University of Cambridge
David Dritschel University of St Andrews
Gregory Falkovich University of California, Irvine and Weizmann Institute of Science
Jackson Herring National Center for Atmospheric Research
Bach Lien Hua IFREMER
Julian Hunt University College London
Yoshifumi Kimura Nagoya University
Marie-Pascale Lelong NorthWest Research Associates, USA
Charlie Macaskill University of Sydney
Mike McIntyre University of Cambridge
James McWilliams University of California, Los Angeles
Patrice Meunier Institut de Recherche sur les Phénomènes Hors Equilibre
Takeshi Miyazaki University of Electro-Communications
Sergey Nazarenko University of Warwick
Peter Rhines University of Washington
Jim Riley University of Washington
Richard Scott University of St Andrews
Victor Shrira Keele University
Joel Sommeria Collegio Carlo Alberto
Chantal Staquet Université Joseph Fourier Grenoble
David Straub McGill University
Norihiko Sugimoto Keio University
Andrew Thompson University of Cambridge
Steve Tobias University of Leeds
Chuong Tran University of St Andrews
Geoffrey Vallis Princeton University
Jacques Vanneste University of Edinburgh
Kraig Winters University of California, San Diego
Shigeo Yoden Kyoto University
Vladimir Zeitlin

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IUTAM - rotating stratified turbulence and turbulence in the atmosphere and oceans

Workshop theme

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Timetable

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