Organisers:JCR Hunt (UK Meteorological Office), ME McIntyre (Cambridge), J Norbury (Oxford), I Roulstone (UK Meteorological Office)
Low-Order Models and Balanced Dynamics
21 - 25 October 1996
Monday 21 October: Low-order models
- 09:30 - 10:30 T Warn (Montreal)
- Balance and slaving in rapidly rotating flows
- 10:30 - 11:00 Coffee
- 11:00 - 12:00 O Bokhove (Woods Hole)
- On Hamiltonian balanced models and the slowest invariant model
- 12:00 - 14:00 Lunch
- 14:00 - 15:00 D Wirosoetisno (Toronto)
- Averaging and balance in a simple atmospheric model
- 15:00 - 15:30 Tea
- 15:30 - 16:30 C Pires (Paris)
- 4D-VAR assimilation in low chaotic systems and prospects in predictability
- 17:00 Welcome Reception
- Tuesday 22 October: Low-order models
- 09:30 - 10:30 R Camassa (Los Alamos)
- The global geometry of the slow manifold in the Lorenz-Krishnamurthy
- 10:30 - 11:00 Coffee
- 11:00 - 12:00 J Tribbia (Boulder)
- The slow/slave manifold in a system asymptotically described by a Landau equation
- 12:00 - 14:00 Lunch
- 14:00 - 15:00 R Vautard (Paris)
- Internally-driven regularities in the atmospheric flow
- 15:00 - 15:30 Tea
- 15:30 - 16:30 W Young (La Jolla)
- Long term evolution of near inertial oscillations in a geostrophic flow
- Wednesday 23 October: Balanced models, Hamiltonian formulation and charateristics
- 09:30 - 10:30 M McIntyre (Cambridge)
- Hamiltonian balanced models: constraints, slow manifolds and velocity splitting
- 10:30 - 11:00 Coffee
- 11:00 - 12:00 M Cullen (UKMO)
- Extensions of semi-geostrophic theory to the sphere and new views on its physical applicability
- 12:00 - 14:00 Lunch
- 14:00 - 15:00 P Kushner (Princeton)
- Coupled Kelvin-wave and mirage-wave instabilities in semi-geostrophic dynamics
- 15:00 - 15:30 Tea
- 15:30 - 16:00 S Ren (Toronto)
- Lateral boundary contributions to wave-activity invariants and nonlinear stability theorems for balanced dynamics
- 16:00 - 16:30 P Morrison (Austin)
- Hamiltonian moment reduction for describing vortices in shear
- Thursday 24 October: Vortical-gravity wave interactions
- 09:30 - 10:30 O Buhler (Cambridge)
- Non-dissipative wave-vortex interactions
- 10:30 - 11:00 Coffee
- 11:00 - 12:00 A Mahalov (Tempe)
- Phase turbulence in small anisotropic Rossby number flows
- 12:00 - 14:00 Lunch
- 14:00 - 15:00 B Nicolaenko (Tempe)
- Exact operator splitting, wave-vortex interactions and Doppler phase shifts in rotating-stratified flows
- 15:00 - 15:30 Tea
- 15:30 - 16:30 A Majda (New York)
- Low Froude number limits in a stably stratified flow at low or finite Rossby numbers
- 19:30 Workshop dinner at The Three Horseshoes, Madingley
- Friday 25 October: Vortical-gravity wave interactions
- 09:30 - 10:00 T Shepherd (Toronto)
- A Hamiltonian weak-wave model for shallow-water flow
- 10:00 - 10:30 J Vanneste (Toronto)
- Wave-action and phase for non-canonical Hamiltonian systems
- 10:30 - 11:00 Coffee
- 11:00 - 12:00 R Ford (London)
- Vortex-gravity wave interactions: the limit of near-inertial waves
- 12:00 - 14:00 Lunch
- 14:00 - 15:00 Plenary discussion