Oral Programme AS3.4

AS3.4

Atmospheric composition: variability and trends
Convener: O. Tarasova 
Co-Conveners: M.G. Schultz , S. Szopa , G. O. Braathen , E. Nisbet 
Session details
Oral Programme
 / Wed, 22 Apr, 08:30–12:00  / 13:30–17:00  / Room 12
Poster Programme
 / Attendance Wed, 22 Apr, 17:30–19:00  / Halls X/Y
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Wednesday, 22 Apr 2009
Room 12
Chairperson: Tarasova O.A.
08:30–08:45
EGU2009-6506
Records of Northern Hemisphere atmospheric carbon monoxide and hydrogen back to about 1960 AD from Greenland firn air
V.V. Petrenko, P. Novelli, D.M. Etheridge, I. Levin, Z. Wang, T. Blunier, P. Lang, L.P. Steele, F. Vogel, and J. Chappellaz and the other members of the NEEM firn carbon monoxide
08:45–09:00
EGU2009-12648
Change in the Northern Hemisphere atmospheric carbon monoxide budget evaluated from CO stable isotopes in Greenland NEEM firn air
Z. Wang, J. Chappellaz, P. Martinerie, V. Petrenko, T. Blunier, C. Brenninkmeijer, and J. Mak
09:00–09:15
EGU2009-8409
Surface Ozone and Carbon Monoxide Variability and Trends at the Global GAW Stations Assekrem (Algeria), Bukit Koto Tabang (Indonesia) and Mt. Kenya (Kenya)
J. Klausen, S. Henne, C. Zellweger, M. Mimouni, Herizal, K. Thiongo, M. van Weele, and B. Buchmann and the GAW Station Operators
09:15–09:30
EGU2009-9859
In-situ ozone observations at Zugspitze (2962 m) from 1978 to 2008
H.-E. Scheel
09:30–09:45
EGU2009-9308
Long-term measurements of anthropogenic trace gases at the German GAW site Hohenpeissenberg
C. Plass-Dülmer and S. Gilge
09:45–10:00
EGU2009-5148
On the diversity of chemistry transport models
M.G. Schultz
COFFEE BREAK
Chairperson: Schultz M.
10:30–10:45
EGU2009-332
A projection of future O3 concentrations using a synoptic-regression based approach.
M. Demuzere and N.P.M. van Lizpig
10:45–11:00
EGU2009-10660
Tropospheric ozone trends and carbon monoxide inter-annual variabilities using MOZAIC data (O3 from 1994-2007, CO from 2002-2007).
R.M. Zbinden, J.-P. Cammas, V. Thouret, and P. Nédélec
11:00–11:30
EGU2009-2072
Long Term Monitoring of Greenhouse Gases at NOAA - a Forty Year Record (solicited)
J. H. Butler
11:30–12:00
EGU2009-13453
Climate impacts on rising atmospheric CO2 from long-term time-series of CO2 and O2 (solicited)
R.F. Keeling, L.E. Rafelski, and S.C. Piper
LUNCH BREAK
Chairperson: Nisbet E.
13:30–13:45
EGU2009-10439
Understanding the rapid growth of background concentrations of methane in 2007
C. S. Witham, A. J. Manning, S. O'Doherty, and P. G. Simmonds
13:45–14:00
EGU2009-7975
Global SF6 emission estimates inferred from atmospheric observations - a test case for Kyoto reporting
I. Levin and T. Naegler and the other members of the Global SF6 Trends Team
14:00–14:15
EGU2009-1459
Growth of HFC-125 (CHF2CF3) in the atmosphere determined from in-situ observation at AGAGE and SOGE observatories.
S.J. O'Doherty
14:15–14:30
EGU2009-7745
Trends of O3, HF and chlorine species as measured by ground-based FTIR at Kiruna and modelled by the KASIMA and SLIMCAT model
S. Barthlott, T. Blumenstock, M. Chipperfield, F. Hase, R. Kohlhepp, I. Kramer, U. Raffalski, T. Reddmann, and R. Ruhnke
14:30–14:45
EGU2009-10097
Trends and variability in the upper troposphere/lower stratosphere 1990-2008: Insights from stratospheric water vapour
S. Fueglistaler, P.H. Haynes, Y. Liu, A. Simmons, W.G. Read, and G. Stiller
14:45–15:00
EGU2009-2021
The long-term trend in the fractionation of stratospheric water and its implications for the troposphere-stratosphere exchange
J. Notholt, G.C. Toon, S. Fueglistaler, P.O. Wennberg, F.W. Irion, M. McCarthy, M. Scharringhauen, T.S. Rhee, A. Kleinbühl, and V. Velazco
COFFEE BREAK
Chairperson: Braathen G.O.
15:30–15:45
EGU2009-3260
Decadal Trends in the Background Stratospheric Aerosol
D. J. Hofmann and J. E. Barnes
15:45–16:00
EGU2009-9899
Increase of total stratospheric NO2 in the tropics after 2001
M. Pastel, F. Goutail, J.P. Pommereau, A. Pazmiño, and G. Held
16:00–16:15
EGU2009-2137
The Total Ozone Series of Arosa: History, Homogenization and new results using statistical extreme value theory
J. Staehelin, H.E. Rieder, J.A. Maeder, M. Ribatet, A.C. Davison, and R. Stübi
16:15–16:45
EGU2009-7585
Long-Term Trends in Stratospheric Trace Gases (solicited)
M.P. Chipperfield
16:45–17:00
EGU2009-6201
Satellite stratospheric measurements from the 1990's to now: Data and models
L. Froidevaux, M. L. Santee, R. A. Fuller, A. Lambert, M. J. Schwartz, G. L. Manney, W. H. Daffer, N. J. Livesey, J. Anderson, R. S. Harwood, D. E. Kinnison, R. R. Garcia, and A. Gettelman