NP3	Geophysical turbulence and diffusion
		.3	Vortex dynamics

Convener: Zeitlin, V.
Co-Convener(s): Dritschel, D.G.
Thursday, 22 April 1999
Lecture Room: Paulus Potterzaal 2
Chairperson: N.N.

Vortices in stratified flows, wave-vortex interactions

09:00	FINCHAM, A.; RENOUARD, D.
		Time evolution of stable vortex structures in rotating stratified fluid

09:15	BILLANT, P.; CHOMAZ, J.M.
		Zigzag instability of a vertical columnar
		vortex pair in a strongly stratified fluid

09:30	BECKERS, M.; CLERCX, H.J.H.; VAN HEIJST, G.J.F.
		Three-dimensional structure, instability and interactions
		of vortices in a stratified fluid

09:45	TYCHENSKY, A.A.; CARTON, X.
		Stability of meddies in stratified geostrophic flows

10:00	MAHALOV, A.; NICOLAENKO, B.
		Adjustment of pancake dynamics and ageostrophic wave fronts

10:15	DRITSCHEL, D.G.
		Wave-vortex dynamics in rotating shallow-water flows

10:30	BREAK

Chairperson: N.N.

11:00	CAILLOL, P.; ZEITLIN, V.
		Vortex-random internal gravity waves interaction in stratified fluid

11:15	VALDIVIESO DA COSTA, M.; COLIN DE VERDIERE, A.
		Eddy-wave interactions using IPV diagnostics

Vortex-topography interactions; instability

11:30	SUTYRIN, G.G.
		Evolution of a baroclinic vortex over a sloping bottom on the beta-plane

11:45	VAN GEFFEN, J.H.G.M.; DAVIES, P.A.
		A monopole encounters a north-south ridge
		or circular seamount on a ß-plane

12:00	FERRERO, E.; LOGLISCI, N.; LONGHETTO, A.
		Vortex-topography interaction in barotropic flows

12:15	BENILOV, E.S.
		On the stability of jets over topography on the beta-plane

12:30	LUNCH & POSTERS

Chairperson: N.N.

14:30	TYCHENSKY, A.A.; CARTON, X.; FLIERL, G.R.; MESSAGER, C.
		Instability of zonal jets and vortex formation

Vortex propagation and environmental modification; atmospheric and oceanic vortices

14:45	KIZNER, Z.; BERSON, D.
		Two-layer quasigeostropheric vortices: numerical evolutionary experiments

15:00	LEGG, S.; MCWILLIAMS, J.C.
		Modification of geostrophic vortices by convection

15:15	NYCANDER, J.
		Meridional drift of radiating quasigeostrophic vortices

15:30	SATIJN, M.P.; VAN HEIJST, G.J.F.
		Evolution scenarios of isolated vortices in a rotating fluid

15:45	FEHLMANN, R.; DAVIES, H.C.
		Salient PV elements and frontal-wave cyclogenesis

16:00	KOH, T.Y.; PLUMB, R.A.
		To understand and quantify asymmetric transport
		in weak barotropic vortex breaking

16:15	BEN-JELLOUL, M.; ZEITLIN, V.
		Some remarks on atmospheric and oceanic vortices
	and jets in frontal regimes

16:30	BREAK

Chairperson: N.N.

2D turbulence and related topics

17:00	RASMUSSEN, J.J.; NAULIN, V.;
		VAN DE KONIJNENBERG, J.A.; STENUM, B.
		Vortex dynamics and turbulence on the ß-plane

17:15	MAASSEN, S.R.; CLERCX, H.J.H.; VAN HEIJST, G.J.F.
		Decaying 2D turbulence in a rectangular container

17:30	PASMANTER, R.A.
		Quantifying the vorticity mixing leading to 2D coherent structures

17:45	DANILOV, S.; DOVZHENKO, V.A.; KRYMOV, V.A.
		title missing

18:00	GLUHOVSKY, A.; TONG, C.
		Nonlinear models in geophysical fluid dynamics
	in the form of coupled gyrostats

18:15	BRACCO, A.; PROVENZALE, A.; SPIEGEL, E.A.
		Vortices on Keplerian disks

18:30	END OF SUB-SESSION