EGS XXV General Assembly, Nice, France, April 2000

ST2. Open session on the middle atmosphere: - 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: Dameris, M.
Co-Convener(s): Krüger, B.C.
Editor(s):
Co- Sponsorship:

Thursday, 27 April 2000
Lecture Room: M6

Chairperson: N.N.

14:00
-0000		 BERRISFORD, P.; O'NEILL, A.; BALDWIN, M.; LAHOZ, W.
The 3-D structure and evolution of the Arctic Oscillation

14:15
-0000		 MAECHEL, H.O.; KAPALA, A.; SIMMER, C.
Detection of the dominant modes of the atmospheric variability

14:30
-0000		 KAPALA, A.; MAECHEL, H.O.; SIMMER, C.
Connections between dominant patterns of the tropospheric and the stratospheric variability

14:45
-0000		 CHOI, W.; LEE, H.
The interannual variation of the stratospheric dynamic fields in the northern hemisphere spring

15:00
-0000		 LAHOZ, W.
Northern Hemisphere Winter Stratospheric Variability in the UKMO GCM

15:15
-0000		 BUTCHART, N.; AUSTIN, J.; JACKSON, D.R.; SCAIFE, A.A.
The stratospheric climate and Brewer-Dobson circulation in the first half of the 21st century

15:30
-0000		 SHUCKBURGH, E.; HAYNES, P.; NORTON, W.; IWI, A.
Interannual variability in strength of stratospheric barriers

15:45
-0000		 BREAK
Chairperson: N.N.

16:30
-0000		 STAINFORTH, D.A.; NORTON, W.A.
Simulation of the QBO in the UKMO Unified Model using the Hines Gravity Wave Drag Parameterization

16:45
-0000		 WEBER, K.; LANGEMATZ, U.; KRUEGER, K.
The Influence of the Quasi-Biennial Oscillation on the Stratospheric Northern Winter Circulation in the Berlin Climate-Middle-Atmosphere-Model (CMAM)

17:00
-0000		 GIORGETTA, M.A.; MANZINI, E.
Meridional mass streamfunction and semi-annual oscillation in the middle atmosphere GCM MAECHAM4

17:15
-0000		 VIAL, F.; HERTZOG, A.; DUBOURG, V.; NOUEL, F.; BASDEVANT, C.
Planetary and gravity wave activity in the equatorial lower stratosphere.

17:30
-0000		 PREUSSE, P.; OBERHEIDE, J.; ECKERMANN, S.; SCHAELER, B.; SPANG, R.; OFFERMANN, D.
Evidence for convectively generated gravity waves in CRISTA Temperatures

17:45
-0000		 WARNER, C.D.; MCINTYRE, ME.
Are simple gravity wave parameterizations good enough?

18:00
-0000		 END OF PART I

Friday, 28 April 2000
Lecture Room: M6

Chairperson: N.N.

08:30
-0000		 SARTELET, K.; MCINTYRE, M.
Intermediate modeling of gravity wave spectra

08:45
-0000		 SOUPRAYEN, C.; VANNESTE, J.; HERTZOG, A.
Stochastic theory for gravity waves spectra

09:00
-0000		 KLASEN, D.; ELBERN, H.; BAIER, F.; EBEL, A.
4D-var data assimilation of trace gas measurements of the stratosphere

09:15
-0000		 ERRERA, Q.; FONTEYN, D.; RIESE, M.
Chemical variational assimilation of stratospheric data measured by the CRISTA instrument

09:30
-0000		 STRUTHERS, H.; ASENEK, V.; BRUGGE, R.; LAHOZ, W.; O'NEILL, A.
The assimilation of UARS MLS ozone using the UKMO Unified Model

09:45
-0000		 ASENEK, V.; STRUTHERS, H.; BRUGGE, R.; LAHOZ, W.; O'NEILL, A.
Assimilation of MLS Temperature into the UKMO NWP System

10:00
-0000		 MARQUARDT, C.; LABITZKE, K.; REIGBER, C.; SCHMIDT, T.; WICKERT, J.
Stratospheric temperatures measured by GPS radio limb sounding