Tuesday Afternoon 1
Time	Session	Location	Title
1400	A23D	ACC 04	Atmospheric Sciences General Contributions on Chemistry Presiding: M R Schoeberl, GSFC, Greenbelt; C A Cantrell, NCAR    [Abstracts]
1400	A23D-01	ACC 04	New Challenges Threatening the Ozone Layer *B Abubakar    [details]
1415	A23D-02	ACC 04	QBO and Annual Cycle Variations in Tropical Lower Stratosphere Trace Gases from HALOE and Aura MLS Observations *M R Schoeberl, A R Douglass, P Newman, L Lait, J Waters, N Livesey, W Read, M Filipiak    [details]
1430	A23D-03	ACC 04	Separating ozone from greenhouse gas signals in stratospheric temperature trends *R S Stolarski, A R Douglass, P A Newman, S Pawson, M R Schoeberl    [details]
1445	A23D-04	ACC 04	High Resolution Measurements of the Tropical Tropopause Region by HIRDLS *J Gille, J Barnett, T Eden, C Halvorson, C Hartsough, D Kinnison, H Lee, B Nardi, C Randall    [details]
1500	A23D-05	ACC 04	Potential Excited NO2 Chemistry Could Increase Tropospheric O3 ˜ Production Rates and Stratospheric NOx/NOy Ratio *S S Prasad    [details]
1515	A23D-06	ACC 04	Indirect Global Warming Potentials of Halons Using Atmospheric Models D Youn, K O Patten, *D J Wuebbles    [details]
1530	A23D-07	ACC 04	Changes in Ozone and UV Index of Australian Cities (1958-2004) *L Lemus-Deschamps, J Easson, P Skingfield    [details]
1545	A23D-08	ACC 04	Why Modelling on Different Scales is Necessary to Understand the Balance of Mercury in the Atmosphere *N Pirrone, I M Hedgecock, G Jung    [details]