EGS XXV General Assembly, Nice, France, April 2000

ST6.02 Processes and issues of the upper troposphere and lower stratosphere (co-sponsored by OA): Stratosphere-troposphere exchange - Oral Programme
Attention: The numbers associated with the title of the contributions are the Manuscript Numbers for the Proceedings/Special Issue, the times associated with the names are the start-times of the oral presentations!

Convener: Wirth, V.
Co-Convener(s): Haynes, P.H.
Editor(s):
Co- Sponsorship:

Tuesday, 25 April 2000
Lecture Room: M5

Chairperson: Haynes, P.H.

00:00
-0000		 Low latitudes

Tuesday, 25 April 2000
Lecture Room: M5

Chairperson: Haynes, P.H.

14:00
-0000		 STEFANUTTI, L.; MACKENZIE, R.; SANTACESARIA, V.; BALESTRI, S.; PETER, T.; CARSLAW, K.; RENGER, W.; KHATTATOV, V.
Measurements at the tropical tropopause during the APE-THESEO Campaign (Solicited Paper)

14:30
-0000		 SANTACESARIA, V.; CARLA', R.; MACKENZIE, A.; STEFANUTTTI, L.
Clouds observations to the tropical tropopause during APE-THESEO campaign

14:45
-0000		 SCOTT, R.K.; CAMMAS, J.-P.
A contour advection analysis of observed ozone anomalies in the upper tropical troposphere

15:00
-0000		 ANCELLET, G.; BARAY, J.L.; CUEVAS, E.
Transport of ozone across the southern and northern subtropical tropopause

15:15
-0000		 HASSLER, B.P.C.; MCINTYRE, M.E.
On the Robustness of the Brewer-Dobson Circulation in the Tropical Stratosphere

00:00
-0000		 Extratropics

15:30
-0000		 LEGRAS, B.; DANIEL, V.; BARAY, J.-L.; ANCELLET, G.
Planetary-scale tropopause folds in the southern subtropics (Solicited Paper)

16:00
-0000		 BREAK
Chairperson: Ancellet, G.

16:30
-0000		 TUCK, A.F.; HOVDE, S.J.; KELLY, K.K.; PROFFITT, M.H.; RICHARD, E.C.
Scale invariance along the tropopause (Solicited Paper)

17:00
-0000		 ZAHN, A.; BRENNINKMEIJER, C.A.M.; CRUTZEN, P.J.; GUESTEN, H.; HEINRICH, G.; FISCHER, H.; CUIJPERS, J.W.M.; VAN VELTHOVEN, P.F.J.
Seasonality of Subtropical Troposphere-to-stratosphere Transport Based on O3 -- CO Interrelationships During CARIBIC

17:15
-0000		 GOUGET, H.; MULLER, J.F.
Mixing of stratospheric air in the middleworld troposphere of the Southern Hemisphere

17:30
-0000		 POBERAJ, G.; ASSION, A.; FIX, A.; KIEMLE, C.; EHRET, G.; HOINKA, K.P.
Observation of stratospheric intrusions with an airborne water vapour DIAL during the MAP experiment

17:45
-0000		 WETTER, T.; ENGEL, A.; RIEDIGER, O.; SCHMIDT, U.; BUJOK, O.
STREAM: Variability of long-lived tracers in the tropopause region

18:00
-0000		 END OF PART I

Wednesday, 26 April 2000
Lecture Room: M5

Chairperson: Tuck, A.F.

00:00
-0000		 Extratropics

Wednesday, 26 April 2000
Lecture Room: M5

Chairperson: Tuck, A.F.

08:30
-0000		 DETHOF, A.; O'NEILL, A.; SLINGO, J.
Isentropic water vapour transport across the dynamical tropopause (Solicited Paper)

09:00
-0000		 HOOR, P.; FISCHER, H.; LANGE, L.; LELIEVELD, J.; SCHLAGER, H.
Measurements of CO, N2O, NOy and O3 in the tropopause region at mid and high northern latitudes: Indications for cross tropopause transport

09:15
-0000		 SCHAELER, B.; OFFERMANN, D.; SCHILLER, C.; HELTEN, M.
Water Vapor at the Tropopause

09:30
-0000		 KOWOL-SANTEN, J.; ANCELLET, G.
Mesoscale analysis of transport across the subtropical tropopause

09:45
-0000		 DANIEL, V.; LEGRAS, B.
Mesoscale study of upper tropospheric anticyclone.

10:00
-0000		 WIRTH, V.
Cyclone-anticyclone asymmetry concerning the height of the thermal and the dynamical tropopause

10:15
-0000		 JUCKES, M.N.
The mass flux across the extra tropical tropopause (Solicited Paper)

10:45
-0000		 BREAK
Chairperson: Dethof, A.

11:00
-0000		 WERNLI, H.; BOURQUI, M.; SPRENGER, M.
A Lagrangian-based climatology of deep trans-tropopause exchange

11:15
-0000		 KONOPKA, P.; BEUERMANN, J.; MCKENNA, D.; SCHILLER, C.; LELIEVELD, J.
Lagrangian modeling of mixing across the tropopause during STREAM 1998 campaign

11:30
-0000		 BOURQUI, M.; WERNLI, H.
Lagrangian Approach to Quantify the Cross-Tropopause Flux: A Real Case Study

11:45
-0000		 MCCAFFERY, S.J.; MCKEEN, S.A.; HSIE, E.-H.; PARRISH, D.D.; HOLLOWAY, J.; HUBLER, G.; FEHSENFELD, F.C.; TRAINER, M.
Three-dimensional modelling of springtime pollutant transport and ozone intrusion during the 1996 North Atlantic Regional Experiment

12:00
-0000		 GREENSLADE, M.D.; HAYNES, P.H.
Transport barriers in quasigeostrophic baroclinic turbulence which mimic the tropopause

12:15
-0000		 HAYNES, P.; SHUCKBURGH, E.
The tropopause defined by effective diffusivity

12:30
-0000		 MORGENSTERN, O.
An effective-diffusivity approach to transport across the tropopause barrier

12:45
-0000		 Section/IWG Meetings
Chairperson: Wirth, V.

00:00
-0000		 Global STE
Chairperson: Wirth, V.

14:30
-0000		 STOHL, A.
Lagrangian Studies of Stratosphere-Troposphere Exchange

14:45
-0000		 BRATSETH, A.M.
Zonal mean transport characteristics estimated from ECMWF reanalysis data

15:00
-0000		 REITHMEIER, C.; SAUSEN, R.
ATTILA-Lagrangian transport in a climate model

15:15
-0000		 ROELOFS, G.J.; KENTARCHOS, A.; LELIEVELD, J.
A model analysis of the annual variability of STE of ozone

15:30
-0000		 TEYSSEDRE, H.; CHIPPERFIELD, M.P.; BREGMAN, A.; NORTON, A.; IWI, W.A.; PITARI, G.; SUNDET, J.
Ozone comparisons between Chemical-Transport Models involved in TOPOZ-2 and MOZAIC measurements