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Oral Programme AS1.4

AS1.4

Clouds, Aerosols and Radiation (General Session)
Convener: Andrea I. Flossmann  | Co-Conveners: Andreas Macke , Johannes Quaas , Arturo Sanchez-Lorenzo , Patrick Laux , Harrie-Jan Hendricks Franssen , Stefanie Vogl , Simone Lolli 
Oral Programme
 / Wed, 06 Apr, 08:30–12:00  / 13:30–17:00  / Room 12
 / Thu, 07 Apr, 08:30–10:00  / Room 12
Poster Programme
 / Attendance Wed, 06 Apr, 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30  /  / Attendance 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30
 / Attendance Wed, 06 Apr, 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30  /  / Attendance 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30
 / Attendance Wed, 06 Apr, 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30  /  / Attendance 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30
 / Attendance Wed, 06 Apr, 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30  /  / Attendance 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30
 / Attendance Wed, 06 Apr, 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30  /  / Attendance 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30
 / Attendance Wed, 06 Apr, 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30  /  / Attendance 17:30–19:00  / Display Wed, 06 Apr, 08:00–19:30  / Halls X/Y

Wednesday, 6 April 2011
Room 12
Chairperson: P. Reutter, S. Kinne
aerosol -cloud interaction

08:30–08:45
EGU2011-2701
Warm cloud microphysics and its interaction with aerosols: cloud-resolving modeling and satellite observation (solicited)
Kentaroh Suzuki, Graeme Stephens, Takashi Nakajima, Teruyuki Nakajima, Masaki Satoh, and Susan van den Heever
08:45–09:00
EGU2011-2089 | presentation
Modelling global emissions of bacteria and fungal spores acting as ice nuclei
Ana Sesartic, Ulrike Lohmann, Trude Storelvmo, and Tanja Dallafior
09:00–09:15
EGU2011-6963 | presentation
An Arctic CCN-limited cloud-aerosol regime
Thorsten Mauritsen, Joseph Sedlar, Michael Tjernström, Caroline Leck, Maria Martin, Matthew Shupe, Staffan Sjogren, Berko Sierau, Ola Persson, and Ian N. Brooks and the T. Mauritsen
09:15–09:30
EGU2011-12024
Effects of airborne particles on cloud processes and precipitation
Stavros Solomos, George Kallos, and Jonilda Kushta
09:30–09:45
EGU2011-463
Can aerosols close open cells in the Marine Boundary Layer?
Tom Goren and Daniel Rosenfeld
microphysics and cloud properties

09:45–10:00
EGU2011-1668 | presentation
Ice-Ice Collisions: An Ice Multiplication Process in Atmospheric Clouds
Vaughan Phillips and Jun-Ichi Yano
COFFEE BREAK
10:30–10:45
EGU2011-704
In-situ microphysical measurements of banded structures in cold-season extra-tropical cyclones
Greg McFarquhar, David Plummer, Robert Rauber, and Brian Jewett
10:45–11:00
EGU2011-3117
Determinants of Cloud Properties - A Statistical Study
Jan Cermak
convective/boundary layer clouds

11:00–11:15
EGU2011-1665
Unified boundary layer and convection parameterization: simulation of the transition from stratocumulus to shallow cumulus boundary layers
Kay Suselj and Joao Teixeira
11:15–11:30
EGU2011-2315
Large-eddy simulation of a shallow cumulus field with a double-moment warm-rain microphysics
Joanna Slawinska, Wojciech Grabowski, Hanna Pawlowska, and Hugh Morrison
11:30–11:45
EGU2011-3934
Radiative impacts of precipitating hydrometeors on atmosphere circulation features in weather and climate models
Juilin Li, Richard Forbes, Duane Waliser, and Tristan L'Ecuyer
11:45–12:00
EGU2011-4424
Observational constraints on model-based assessments of indirect aerosol radiative effects - and model constraints on observations
Philip Stier, Benjamin Grandey, Rosalind West, Zak Kipling, and Edward Gryspeerdt
LUNCH BREAK
13:30–13:45
EGU2011-5096 | presentation
A study of microphysical mechanism for correlation patterns between droplet radius and optical thickness of warm clouds simulated idealized and downscaling simulation by a three-dimensional spectral bin microphysics model.
Yousuke Sato, Teruyuki Nakajima, and Kentaroh Suzuki
13:45–14:00
EGU2011-9701
Cloud base vertical velocity statistics - A comparison between AROME and CloudNet observations
Juha Tonttila, Ewan O'Connor, Sami Niemelä, Petri Räisänen, and Heikki Järvinen
cloud and remote sensing

14:00–14:15
EGU2011-4287
GEWEX Cloud Assessment: cloud properties and their variation (solicited)
Claudia Stubenrauch and Stefan Kinne and the GEWEX Cloud Assessment Team
14:15–14:30
EGU2011-2069
Evaluation of the broadband surface solar irradiance derived from SCIAMACHY effective cloud fraction
Ping Wang, Piet Stammes, and Richard Mueller
14:30–14:45
EGU2011-6039
Radiative fluxes from active satellite observations and their sensitivity to scale
Jennifer Müller, Hartwig Deneke, Victor Venema, and Clemens Simmer
14:45–15:00
EGU2011-7923
Comparison of an Upgraded Multiscale Modeling Framework Simulation with Merged CERES, CloudSat, CALIPSO and MODIS (C3M) Data
Kuan-Man Xu, Anning Cheng, and Seiji Kato
COFFEE BREAK
15:30–15:45
EGU2011-8543
A sharper view of fuzzy objects: Synergistic use of A-Train measurements to study warm clouds
Ralf Bennartz
15:45–16:00
EGU2011-10491
Investigating the diurnal variation of South Atlantic boundary layer clouds from SEVIRI and TMI
Seethala Chellappan, Jan Fokke Meirink, Ákos Horváth, Ralf Bennartz, and Rob Roebeling
16:00–16:15
EGU2011-10627
Spectral-invariant behavior of zenith radiance near cloud edges: Simulations and implications
Jui-Yuan Christine Chiu, Alexander Marshak, Yuri Knyazikhin, and Warren Wiscombe
16:15–16:30
EGU2011-11213
Evaluating cloud schemes in global circulation models - what can we gain from ground based remote sensing and high resolution modeling?
Verena Grützun, Maximilian Voigt, Felix Ament, and Johannes Quaas
16:30–16:45
EGU2011-11909
Correcting for 3D Radiative Effects in the Estimation of Cloud Properties from Reflected Solar Radiation
Hartwig Deneke, Simone Placidi, and Dave Donovan
16:45–17:00
EGU2011-3373
Radiative impact of the water vapour continuum in near-infrared windows and possible consequences for cloud remote sensing
Gaby Radel, Igor V. Ptashnik, Keith P. Shine, and Julie Chenery

Thursday, 7 April 2011
Room 12
Chairperson: A. Sanchez-Lorenzo, S. Lolli
Weekly weather cycles of meteorological variables

08:30–08:45
EGU2011-684
Weekly cycle patterns of total cloud cover over Europe and their connection to aerosol weekly variability and synoptic transport
Aristeidis Georgoulias and Konstantinos Kourtidis
08:45–09:00
EGU2011-9806
Detecting weekly cycles in model-derived and observation time series with Fourier-based techniques. (solicited)
Graham Weedon, Olivier Boucher, and Johannes Quaas
09:00–09:15
EGU2011-12049
Evaluating the significance of weekly cycles in temperature
Robert Portmann, John Daniel, Susan Solomon, and Daniel Murphy
High Resolution Active Optical Remote Sensing of Atmospheric Processes

09:15–09:30
EGU2011-8931 | presentation
Raman and elastic lidar techniques for aerosol observation at CIAO (solicited)
Fabio Madonna, Aldo Amodeo, Giuseppe D'Amico, Aldo Giunta, Lucia Mona, and Gelsomina Pappalardo
09:30–09:45
EGU2011-9370
LASE measurements during NAMMA and GRIP field experiments
Syed Ismail, Richard Ferrare, and Jonathan Hair
09:45–10:00
EGU2011-11600 | presentation
Turbulent layers detection from ground based lidar observations
Alain Hauchecorne and the MMEDTAC