Session 1 – Basic cloud and precipitation physics

Oral session:

S1.1 Large Eddy Simulations of the impact of shear-driven turbulence on snow growth
Bart Geerts1, Xia Chu1, Lulin Xue*2;
1University of Wyoming, USA, 2NCAR, USA (only audio; position 0:00:55)
S1.2 Omitted turbulent mechanism leading to preferential concentration in clouds
Katarzyna Karpinska*, Szymon P. Malinowski
Faculty of Physics, University of Warsaw, Poland (only audio; position 0:15:00)
S1.3 Turbulence enhancement of cloud droplet collisions: how does the droplet size distribution evolve in turbulent clouds?
Sisi Chen*, M.K. Yau, Peter Bartello
McGill University, Canada (only audio; position 0:31:40)
S1.4 Drop-droplet collisions observed with holography in a vertical laminar flow
Anna Gorska*1,2, Jacob Fugal1,3, Subir Mitra3, Szymon Malinowski2,3, Stephan Borrmann1,3
1Max Planck Institute for Chemistry, Germany, 2Institute of Geophysics, Faculty of Physics, University of Warsaw, Poland, 3Institute of Atmospheric Physics, Johannes Gutenberg University, Germany
(only audio; position 0:47:00)
1.5 Retrieval of binned rain drop size distributions profiles from multi-frequency radar observations: potential for fingerprinting rain microphysics processes
Frederic Tridon*1, Alessandro Battaglia1,2
1Department of Physics and Astronomy, University of Leicester, UK, 2National Center Earth Observation, University of Leicester, UK (only audio; position 1:03:45)
S1.6 Use of 3D-printed analogues to investigate the fall speed and orientation of natural ice particles
Chris Westbrook
University of Reading, UK (only audio; position 1:18:20)
S1.7 Effective terminal velocity as a measure for the coupling between cloud microphysics and dynamics
Ilan Koren*1, Orit Altaratz1, Guy Dagan1, Reuven Heiblum1, Qian Chen1, Zev Levin2 1Weizmann Institute of Science, Israel, 2Tel Aviv University, Israel (only audio; position 1:33:05)
S1.8 Cumulus precipitation and the development of the boundary layer
Huiwen Xue*1, Guoxing Chen2
1Peking University, China, 2University at Albany, State University of New York, USA
(only audio; position 1:49:00)
S1.9 Homogeneous nucleation in supercooled cloud droplets
Ben Murray*1, James Atkinson1,2, Steven Dobbie1, Ross Herbert1, Thomas Koop3, Daniel O’Sullivan1
1University of Leeds, UK, 2ETH, Switzerland, 3Bielefeld University, UK (video; position 0:00)
S1.10 Supercooled Cloud Tunnel Studies on the Growth Conditions of Branched Planar Snow Crystals: The Influence of Crystal Growth Time
Tsuneya Takahashi
Hokkaido University of Education, Japan (video; position 16:13)
S1.11 The effectiveness of spectral bin schemes in simulating ice cloud particle size distributions and their variability
Wei Wu*1,2, Greg McFarquhar1,2, Lulin Xue2, Hugh Morrison2, Wojciech Grabowski2 1University of Illinois at Urbana Champaign, USA, 2National Center for Atmospheric Research, USA (video; position 0:00)
S1.12 The effect of ice particles growth rates in convective clouds
Paul Connolly*1, Christopher Westbrook2, Junshik Um3, Karina Mccusker2 1University of Manchester, UK, 2University of Reading, UK, 3University of Illinois, USA (video; position 15:00)
S1.13 Simulations of Radar Reflectivity Factors at 94GHz: Ice Crystal Approximation with Oblate Spheroids
Emmanuel Fontaine1, Delphine Leroy1, Alfons Schwarzenboeck*1, Pierre Coutris1, Julien Delanoë2, Alain Protat3, Fabien Dezitter4, Alice Calmels4, Walter Strapp5, Lyle Lilie6, 1UBP/ CNRS / LaMP, France, 2UVSQ / CNRS / LATMOS, France, 3CAWC / BOM, Australia, 4AIRBUS, France, 5Met Analytics, Canada, 6Science Engineering Associates, USA (video; position 31:00)
S1.14 Measurements of vapor growth and sublimation of individually levitated ice particles below -30°C Marcus Hanson*, Alfred Moyle, Jerry Harrington
The Pennsylvania State University, USA (video; position 1:00)
S1.15 Developing an advanced categorization scheme for autoconversion using new observables from ground based observations.
Claudia Acquistapace*1, Ulrich Löhnert1, Max Maahn1, Stefan Kneifel1, Pavlos Kollias2, 1Institute for Geophysics and Meteorology, Germany, 2McGill University, Canada (video; position 17:45)
S1.16 Wind tunnel studies on formation and growth processes of atmospheric ice particles Miklós Szakáll*1, Alexander Jost2, Oliver Eppers1,2, Amelie Mayer1, Karoline Diehl1, Subir Mitra2, Stephan Borrmann1,2
1University of Mainz, Germany, 2Max Planck Institute for Chemistry, Germany (video; positon 31:00)
S1.17 Does the shape of the assumed raindrop size distribution matter in convection? Sean Freeman*, Susan van den Heever, Adele Igel
Colorado State University, USA (video: position 0:50)
S1.18 Exploring the diabatic role of ice microphysical processes in two North Atlantic summer cyclones
Christopher Dearden*1, Geraint Vaughan1, Tzu-Chin Tsai2, Jen-Ping Chen2 1University of Manchester, UK, 2National Taiwan University, Taiwan (video; position 13:45)
S1.19 Cloud Droplet Growth and Drizzle Formation in a Turbulent Laboratory Cloud W. Cantrell, K. Chandrakar, K. Chang, D. Ciochetto, D. Niedermeier, R. Shaw*, F. Yang Michigan Technological University, USA (video: position 28:30)

Poster session:

P1.1 Parameterization of Charge Modulation of Aerosol Scavenging with Varying Relative Humidity Brian Tinsley
Univ. of Texas at Dallas, USA
P1.2 Analysis of Precipitation Characteristics based on Laser Optical Spectrometer Data in Tianjin Area Ruijun Jin*, Wei Song
Tianjin Weather Modification Office, China
P1.3 Extreme deformation and breakup of drop suspended in a vertical wind tunnel in the presence of a horizontal electric field.
Rohini Bhalwankar*, C.G. Deshpande, A.K. Kamra
Indian Institute of tropical Meteorology,, India
P1.4 Buoyancy of warm convective clouds: the role of humidity
Guy Dagan*, Ilan Koren, Orit Altaratz, Reuven H. Heiblum
Department of Earth and Planetary SWeizmann Institute of Science, Israel
P1.5 Moist vs. dry convection: Influence of cloud droplet growth and evaporation on turbulent flow
Dennis Niedermeier*1,2, Will Cantrell1, Kamal Chandrakar1, Kelken Chang1, David Ciochetto1, Raymond Shaw1 1Department of Physics, Michigan Technological University, USA, 2Leibniz Institute for Tropospheric Research, Germany
P1.6 Scavenging of aerosol particles and minimum collection efficiency diameter during snow precipitation
Chang Hoon Jung*1, Soo Ya Bae2, Yong Pyo Kim3
1Kyungin Women’s University, Republic of Korea, 2KIAPS, Republic of Korea, 3Ewha Womans University, Republic of Korea
P1.7 Numerical simulations for cloud droplet diffusion processes with a newly modified triple-moment bulk cloud microphysics
Wei Deng*, Jiming Sun
Institute of Atmospheric Physics, Chinese Academy of Sciences, China
P1.8 Numerical investigation for the effects of the vertical wind shear on the cloud droplet spectra broadening at the lateral boundary of the cumulus clouds
JIMING SUN*, YONGQING WANG
Key Laboratory of Cloud-Precipitation Physics and Severe Storms,Institute of Atmospheric Physics, Chinese Academy of Sciences, China
P1.9 Analysis on the macro- and micro- characteristics of Cloud System Based on Airborne Particle Measuring System Liren Xu*, Jun Cai, Runqiang Chen
Institute of Atmospheric Physics,Chinese Academy of Sciences, China
P1.10 RaindropFallVelocityDeviationsfromtheTerminalVelocities Firat Testik*, Kalimur Rahman
The University of Texas at San Antonio, USA
P1.11 Microphysicalfeaturesofprecipitationparticlesinmeltinglayerbyground-baseddirectmeasurements
Kenji Suzuki*1, Katsuhiro Nakagawa2, Yuki Kaneko3, Riko Oki3, Kenji Nakamura4
1Yamaguchi University, Japan, 2National Institute of Information and Communications Technology, Japan, 3Japan Aerospace Exploration Agency, Japan, 4Dokkyo University, Japan
P1.12 TestingLagrangianparticle-basedwarm-rainmicrophysicsschemeinakinematicframework
Anna Zimniak*1, Hanna Pawlowska1, Wojciech W. Grabowski2
1Institute of Geophysics, Faculty of Physics, University of Warsaw, Poland, 2National Center fo Atmospheric Research (NCAR), USA
P1.13 Howdocollisionandcoalescencecontributetotheactivationofdroplets? Fabian Hoffmann*, Siegfried Raasch
Leibniz Universität Hannover, Germany
P1.14 Towardsmicro-andmacrophysicalparameterizationofshallowconvectiveclouds:FromLarge-EddySimulationtomulti- UAV-based cloud sampling
Fayçal Lamraoui*1, Greg Roberts1,2, Frédéric Burnet1
1Météo-France/CNRS, CNRM/GAME, France, 2Scripps Institution of Oceanography, University of California, USA
P1.15 EVOLUTION OF RAINDROP SIZE DISTRIBUTIONS DURING A STRATIFORM PRECIPITATION EVENT IN THE CITY OF LEON (SP AIN)
Carlos Blanco-Alegre1, Amaya Castro1, Ana I Calvo1, Delia Fernandez-Gonzalez2,3, Rosa M Valencia-Barrera2, Ana M Vega- Maray2, Roberto Fraile*1
1University of León. Department of Physics, IMARENAB, Spain, 2University of León. Biodiversity and Environmental
Management, Spain, 3Institute of Atmospheric Sciences and Climate, Italian National Research Country, Italy
P1.16 On the impact of internal fluctuations on growth of cloud droplets due to collision-coalescence:Numerical calcul at post-gel droplet size distribution.
Lester Alfonso1,2, Graciela Binimelis de Raga*1
1Universidad Autonoma de la Ciudad de Mexico, Mexico, 2Centro de Ciencias de la Atmosfera, UNAM, Mexico
P1.17 On the observation of giant sea salt aerosol size distributions over the SE Pacific during the 2008 VOCALS deployment Jorgen Jensen*, Alison Nugent
NCAR Earth Observation Laboratory, USA
P1.18 Collision-coalescence rates estimated from insitu observations of marine stratocumulus Mikael Witte*, Patrick Chuang, Dione Rossiter
University of California Santa Cruz, USA
P1.19 Characterizing microphysical precursor conditions for precipitation initiation in marine stratocumulus Hannah Chandler, David Mechem*
University of Kansas, USA
P1.20 A new sedimentation scheme for double moment microphysics model: How to make it fast, interactive and avoid size sorting
Frederick Chosson
McGill University, Canada
P1.21 The Eastern North Atlantic ARM site: a highly-instrumented surface remote sensing and in-situ measurement site for clouds and aerosols in the remote marine boundary layer
Robert Wood*1, Mark Miller2, Pavlos Kollias3, Kim Nitschke4, Eduardo Brito de Azevedo5
1University of Washington, USA, 2Rutgers University, USA, 3Stony Brook University, USA, 4Los Alamos National Laboratory, USA, 5Universidade dos Açores, Portugal
P1.22 Analytical solutions of the supersaturation equation for a warm cloud Ben Devenish*, K Furtado
Met Office, UK