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  Oral Programme - AS3.08 Trace Gas Composition and Chemistry of the Last Two Hundred Years from Firn and Ice Core Measurements (co-listed in CR)

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Convener: Sturges, W.
Co-Convener: Leuenberger, M., Montzka, S.

Monday, 3 April 2006

Lecture Room: Lecture Room 1 (G)

Chairperson: STURGES, W.

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13:30 - 13:45
EGU06-A-02575;  AS3.08-1MO3O-001
Martinerie, P. ; Nourtier-Mazauric, E.; Barnola, J.-M.; Sturges, W.; Worton, D. R.; Atlas, E.; Brasseur, G.
Halocarbon trends and budgets over the last century : a model study constrained by firn air data

13:45 - 14:00
EGU06-A-02398;  AS3.08-1MO3O-002
Worton, D. R.; Sturges, W. T.; Etheridge, D.; MacfarlingMeure, C.; Humprey, S. P.; Begley, P.; Schwander, J.; Mulvaney, R.
Atmospheric trends of CF4 and C2F6 inferred from air recovered from polar firn and ice.

14:00 - 14:15
EGU06-A-05264;  AS3.08-1MO3O-003
Montzka, S.; Clarke, A.; Butler, J.; Battle, M.; Severinghaus, J.; Calvert, P.; Elkins, J.
A decade of firn air sampling in the polar regions of both hemispheres (solicited)

14:15 - 14:30
EGU06-A-05447;  AS3.08-1MO3O-004
Etheridge, D; Trudinger, C; Langenfelds, R; Steele, P; Ferretti, D; Smith, A
Increase in carbon monoxide concentration in the southern hemisphere over the past century (solicited)

14:30 - 14:45
EGU06-A-10581;  AS3.08-1MO3O-005
Assonov, S.S.; Brenninkmeijer, C.A.M; Chappellaz, J.
A reconstruction of the past trend of atmospheric CO based on firn air samples from Berkner Island, Antarctica

14:45 - 15:00
EGU06-A-02859;  AS3.08-1MO3O-006
Leuenberger, M.; Severinghaus, J.P.; Schwander, J.; Spahni, R.; Battle, M.; Huber, C.; Beyerle, U.; Kipfer, R.; Weiler, K.
Molecular size dependent gas fractionation in firn air derived from noble gases, oxygen, and nitrogen measurements

15:00 - 15:15
EGU06-A-08198;  AS3.08-1MO3O-007
Laepple, T.; Madronich, S.; Schultz, M.; Lohmann, G.
The atmospheric chemistry in the Last Glacial Maximum : A model study


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