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  Oral Programme - AS1.08 Clouds, Aerosols and Radiation

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Convener: Lohmann, U.
Co-Convener: Macke, A., Kärcher, B.

Tuesday, 26 April 2005

Lecture Room: Lecture Room 9 (E1)

Chairperson: LOHMANN, U, QUAAS, J.

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Cloud microphysics

8:30 - 8:45
EGU05-A-05631;  AS1.08-1TU1O-002
Khairoutdinov, M. F.; Randall, D. A.
Sensitivities of a super-parameterization to its grid and microphysics configuration: Results from single-column and GCM studies

8:45 - 9:00
EGU05-A-02634;  AS1.08-1TU1O-003
Grits, B.; Pinsky, M.; Khain, A. ; Shapiro, M.
Calculation of collision rate between small non-spherical particles in a turbulent flow

9:00 - 9:15
EGU05-A-02718;  AS1.08-1TU1O-004
Pinsky, M.; Khain, A.; Sterkin, A.
Effects of turbulence and aerosols on the droplet spectrum formation in stratiform clouds

9:15 - 9:30
EGU05-A-02251;  AS1.08-1TU1O-005
Roelofs, G.J.; Stier, P; Feichter, J; Vignati, E; Wilson, J
Detailed simulation of CDNC and aqueous chemistry in a global climate model: first results

9:30 - 9:45
EGU05-A-08502;  AS1.08-1TU1O-006
Venema, V; Simmer, C
3-Dimensional surrogate cloud fields with measured structures

9:45 - 10:00
EGU05-A-06925;  AS1.08-1TU1O-007
Preusker, R.; Bennartz, R.
Representation of the photon pathlength distribution in a cloudy atmosphere using finite elements

Coffee Break

Chairperson: GAYET, J-F., BARKER, H.

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cirrus clouds

10:30 - 11:00
EGU05-A-01917;  AS1.08-1TU2O-002
Gayet, J-F; Shcherbakov, V.; Baker, B.; Lawson, P.
Light scattering by single natural ice crystals (solicited)

11:00 - 11:15
EGU05-A-04788;  AS1.08-1TU2O-003
Eriksson, P.; Rydberg, B.; Ekström, M.; Murtagh, D.
Retrieval of high altitude cirrus from Odin sub-mm observations

11:15 - 11:30
EGU05-A-05721;  AS1.08-1TU2O-004
Donovan, D.P.; van Zadelhoff, G.-J.; van Meijgaard, E.; Boers, R.; Klien-Baltink, H.
Ice cloud property profiling using lidar and radar.

11:30 - 11:45
EGU05-A-10102;  AS1.08-1TU2O-005
Immler, F.; Kaiser, D.; Engelbart, D.; Schrems, O.
Cirrus clouds, contrails, and ice supersaturated regions: observations by lidar and radiosonde in Lindenberg/Germany

11:45 - 12:00
EGU05-A-06608;  AS1.08-1TU2O-006
Spichtinger, P.; Gierens, K.
Simulation of the formation of thin cirrus clouds in presence of different competing nucleation processes

Lunch Break

Chairperson: ROELOFS, G-J., ADAMS, P.

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Aerosol-water cloud interactions

13:30 - 13:45
EGU05-A-04360;  AS1.08-1TU3O-002
Korhonen, H.; Kerminen, V.-M.
Cloud Droplet Activation and Cloud Processing in a Simplified Sectional Model

13:45 - 14:00
EGU05-A-10336;  AS1.08-1TU3O-003
Phillips, V.T.J; Donner, L.J.
Effects of aerosol concentration on a cloud field simulated by a cloud-resolving model with a double-moment bulk microphysics scheme and fully interactive radiation

14:00 - 14:15
EGU05-A-06975;  AS1.08-1TU3O-004
Cui, Z.; Carslaw, K.; Yin, Y.
A Numerical Study of Aerosol Effects on the Dynamics

14:15 - 14:30
EGU05-A-05703;  AS1.08-1TU3O-005
Chen, K.; Adams, P. J.
Estimating the contribution of carbonaceous aerosols to global cloud condensation nuclei with a global aerosol microphysics model

14:30 - 14:45
EGU05-A-08434;  AS1.08-1TU3O-006
Stier, P. ; Quaas, J. ; Feichter, J. ; Kinne, S.; Lohmann, U. ; Zhang, J.
Simulation of the indirect aerosol effect with the ECHAM5-HAM aerosol climate model

14:45 - 15:00
EGU05-A-06356;  AS1.08-1TU3O-007
Quaas, J.; Kinne, S.; Boucher, O.
Estimate of aerosol indirect radiative forcing by combining satellite data and global models

Coffee Break

Chairperson: KRÄMER, M., WEINGARTNER, E.

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Aerosol-ice cloud interactions

15:30 - 16:00
EGU05-A-08099;  AS1.08-1TU4O-002
Weingartner, E.; THE CLACE TEAM
An overview of the Cloud and Aerosol Characterization Experiments (CLACE) conducted at a high alpine site in the free troposphere (solicited)

16:00 - 16:15
EGU05-A-03190;  AS1.08-1TU4O-003
Ansmann, A.; Mattis, I.; Wandinger, U.; Müller, D.; Radlach, M.; Althausen, D.
Ice Formation in Altocumulus Embedded in Saharan Dust: Raman Lidar Observations over Central Europe

16:15 - 16:30
EGU05-A-09537;  AS1.08-1TU4O-004
Möhler, O.; Benz, S.; Bunz, H.; Wagner, R.; Schurath, U.
New laboratory investigations of the homogeneous freezing mode in clouds

16:30 - 16:45
EGU05-A-06429;  AS1.08-1TU4O-005
Mangold, A.; Wagner, R. ; Saathoff, H.; Schurath, U.; Ebert, V.; Krämer, M.; Möhler, O.
Experimental Investigation of Ice Nucleation by different Types of Aerosols in the Aerosol Chamber AIDA: Implications to Microphysics of Cirrus Clouds

16:45 - 17:00
EGU05-A-06190;  AS1.08-1TU4O-006
K\"archer, B.; Koop, T.
The Role of Organic Aerosols in Homogeneous Ice Formation

Coffee Break

Wednesday, 27 April 2005

Lecture Room: Lecture Room 9 (E1)

Chairperson: MACKE, A., KNAP, W

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Cloud-radiation interactions

8:30 - 9:00
EGU05-A-01942;  AS1.08-1WE1O-002
Barker, H.
The State of Radiation and Clouds in Global Climate Models (solicited)

9:00 - 9:15
EGU05-A-04535;  AS1.08-1WE1O-003
Vardavas, I.; THE ESRB TEAM
The Earth’s radiation budget on a daily 1x1 degree resolution from the ESRB project

9:15 - 9:30
EGU05-A-10277;  AS1.08-1WE1O-004
Garrett, T; Zhao, C; Dong, X; Mace, G; Hobbs, P
Pollution effects on cloud emissivity and longwave fluxes in the Arctic

9:30 - 9:45
EGU05-A-08432;  AS1.08-1WE1O-005
Philipona, R.; Duerr, B.; Ruckstuhl, C.
Radiative forcings explain recent rapid temperature increase in Europe

9:45 - 10:00
EGU05-A-04980;  AS1.08-1WE1O-006
Wild, M.; Ohmura, A.; Roesch, A.; Gilgen, H.
Decadal changes in surface radiative fluxes


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