Session 14 – Ice nucleation and cloud condensation nuclei

Oral session:

S14.1 Intercomparison of ice nucleation measurement methods during the Fifth International Ice Nucleation Workshop and during ambient aerosol sampling
Paul DeMott*1, Thomas Hill1, Markus Petters2, Daniel Cziczo3, Ottmar Möhler4, Naruki Hiranuma4, Kaitlyn Suski1, Ezra Levin1, Ryan Mason5, Christina McCluskey1, Sarah Suda2, Nicholas Rothfuss2, Hans Taylor2, Cedric Chou5, Thea Schiebel4, Allan Bertram5
1Colorado State University, USA, 2North Carolina State University, USA, 3Massechusetts Institute of Technology, USA, 4Karlsruhe Institute of Technology,
Germany, 5University of British Columbia, Canada (video; poistion 0:00)
S14.2 Suppression of the feldspar ice nucleation activity by thin coating layers of secondary organics and sulphuric acid
Ottmar Möhler*1, Naruki Hiranuma1, Dan J. Cziczo2, Paul J. DeMott3, Romy Ullrich1, Thea Schiebel1, Kristina Höhler1, Claudia Mohr1, Adam Ahern4, Ryan Sullivan4, Hashim Al-Mashat5, David Bell6, Jacqueline Wilson6, Alla Zelenyuk6, Nickolas Marsden7, Fabian Marth8, Susan Schmidt9, Johannes Schneider9, Anna Wonaschütz10, Maria A. Zawadowicz2
1Karlsruhe Institute of Technology, Germany, 2Massachusetts Institute of Technology, USA, 3Colorado State University, USA, 4Carnegie Mellon University, USA, 5University of California, USA, 6Pacific Northwest National Laboratory, USA, 7University of Manchester, UK, 8ETH, Switzerland, 9Max Planck Institute for
Chemistry, Germany, 10University of Vienna, Austria (video; position 16:30)
S14.3 Comparing ice nucleation measurements from a suite of instrumentation: LINC, the Leipzig Ice Nucleation counter Comparison campaign
Heike Wex*1, Monika Kohn2, Sarah Grawe1, Susan Hartmann1, Lisa Hellner1, Paul Herenz1, Andre Welti1, Ulrike Lohmann2, Zamin Kanji2, Frank Stratmann1
1Leibniz Institute for Tropospheric Research, Germany, 2Institute for Atmospheric
and Climate Science, ETH, Switzerland (video; position 33:00)
S14.4 Ice nucleation on size-selected aerosol using PINC and SPIN in sub- and super- saturated conditions with respect to water during LINC
Monika Kohn1, Heike Wex2, Sarah Grawe2, Susan Hartmann2, Lisa Hellner2, Paul Herenz2, André Welti2, Frank Stratmann2, Ulrike Lohmann1, Zamin A. Kanji*1 1Institute for Atmospheric and Climate Science, ETH Zurich, Switzerland, 2Experimental Aerosol and Cloud Microphysics, Leibniz Institute for Tropospheric Research, Germany (video; positon 0:00)
S14.5 The adsorption of fungal ice-nucleating proteins on mineral dusts: a terrestrial reservoir of atmospheric ice-nucleating particles
Daniel O’Sullivan*1, Benjamin J. Murray1, James Ross2,3, Michael E. Webb2 1Insititute for Climate and Atmopsheric Science, School of Earth and Environment, University of Leeds, UK, 2School of Chemistry and Astbury Centre for Structural Molecular Biology, University of Leeds, UK, 3School of Chemistry, University of
Bristol, UK (video; position 13:00)
S14.6 Heterogeneous ice nucleation ability of fresh and cloud-processed α-pinene SOA particles
Robert Wagner*1, Kristina Höhler1, Emma Järvinen1, Alexei Kiselev1, Ottmar Möhler1, Claudia Mohr1, Aki Pajunoja2, Harald Saathoff1, Thea Schiebel1, Annele Virtanen2
1Institute of Meteorology and Climate Research, Karlsruhe Institute of Technology, Germany, 2Department of Applied Physics, University of Eastern Finland, Finland (video; position 0:00)
S14.7 Moving contact lines due to electrowetting enhance ice nucleation rates F. Yang*, R. Shaw, C. Gurganus, S.-K. Chong, Y.-K. Yap
Michigan Technological University, USA (video; position 15:00)
S14.8 Observations of Ice Nucleating Particles during the ICE-D Campaign.
Jim McQuaid1, Hannah Price1,5, Ben Murray*1, Claire Ryder2, Jennifer Brooke3, Paul Field3, Alan Blyth4, Paola Formenti6, Jamie Trembath5
1School of Earth and Environment, University of Leeds, UK, 2Department of Meteorology, University of Reading, UK, 3Met Office, UK, 4National Centre for Atmospheric Science, University of Leeds, UK, 5Facility for Airborne Atmospheric Measurements, Cranfield University, UK, 6Laboratoire Interuniversitaire des
Systèmes Atmosphériques (LISA), France (video; position 30:00)
S14.9 Layered structure of dust and their origins in the Cape Verde region during the ICE-D campaign
Zhiqiang Cui*1, Alan Blyth1,2, Hannah Price1, Jim McQuaid1, Ben Murray1, Tom Choularton3, Richard Cotton4, Paul Field1,4, Martin Gallagher3, Keith Bower3, Lindsay Bennett1,2, Ryan Neely1,2, Yahui Huang1
1University of Leeds, UK, 2National Centre for Atmospheric Science, UK,
3University of Manchester, UK, 4Met Office, UK (video; position 0:00)
S14.10 Observation of Ice Nucleating Particles and Cloud Microphysics with Active Remote Sensing
Johannes Bühl*1, Patric Seifert1, Rodanthi Mamouri2, Albert Ansmann1, Ronny Engelmann1
1TROPOS, Germany, 2Cyprus University of Technology, Cyprus (video; position 15:00)
S14.11 Conditions Influencing Transport of Fluorescent Biological Aerosol Particles in the Atmosphere and Implications for Ice Nucleation
Cynthia Twohy*1, Gavin McMeeking2, Christina McCluskey3, Paul DeMott3, Thomas Hill3
1NorthWest Research Associates, USA, 2Handix LLC, USA, 3Colorado State
University, USA
S14.12 Sea spray aerosols influence atmospheric ice nucleating particle populations
Christina Mccluskey*1, Thomas Hill1, Samuel Atwood1, Katherine Rocci1, Yvonne Boose2, Gavin Cornwell3, Camille Sultana3, Kathryn Moore3, Andrew Martin3, Kimberly Prather3, Nicholas Rothfuss4, Hans Taylor4, Markus Petters4, Jurgita Ovadnevaite5, Darius Ceburnis5, Colin O’Dowd5, Melita Keywood6, Alain Protat7, Paul DeMott1, Sonia Kreidenweis1
1Colorado State University, USA, 2ETH Swiss Federal Institute of Technology Zurich, Switzerland, 3University of California, San Diego, USA, 4North Carolina State University, USA, 5National University of
Ireland, Ireland, 6CSIRO Atmospheric Research, Australia, 7Australian Bureau of Meteorology, Australia (video; position 0:00)
S14.13 Global synthesis of long-term cloud condensation nuclei observations
Julia Schmale1, Silvia Henning*2, Frank Stratmann2, Bas Henzing3, Patrick Schlag4,5, Pasi Aalto6, Helmi Keskinen6,7, Mikhail Paramonov6, Laurent Poulain2, Karine Sellegri8, Jurgita Ovadnevaite9, Mira Krüger10, Anne Jefferson11, James Whitehead12, Ken Carslaw13, Seong Soo Yum14, Adam Kristensson15, Urs Baltensperger1, Martin Gysel1, CCN Team16,17
1Paul Scherrer Institute, Switzerland, 2Leibniz Institute for Tropospheric Research, Germany, 3Netherlands Organisation for Applied Scientific Research, The Netherlands, 4University of Utrecht, The Netherlands, 5Forschungszentrum Jülich, Germany, 6University of Helsinki, Finland, 7Hyytiala; Forestry Field Station, Finland, 8University of Clermont-Ferrand, France, 9National University of Ireland Galway, Ireland, 10Max Planck Institute for Chemistry, Germany, 11National Oceanic and Atmospheric Administration, USA, 12University of Manchester, UK, 13University of Leeds, UK, 14Yonsei University, Republic of Korea, 15University of Lund, Sweden, 16Energy Research Centre of the Netherlands, The Netherlands, 17University
of Sao Paulo, Brazil
S14.14 Physical, chemical and hygroscopic properties of urban aerosols in Seoul measured during the KORUS-AQ pre-campaign
Seong Soo Yum*1, Najin Kim1, Minsu Park1, Hye Jung Shin2, Jong Sung Park2, Seung Myung Park2, In Ho Song2, Joon Young Ahn2, Gwi-Nam Bae3, Kyung-Hwan Kwak3, Hwajin Kim3
1Yonsei University, Republic of Korea, 2National Institute of Environmental Research, Republic of Korea,
3Korea Institute of Science and Technology, Republic of Korea (video; position 15:00)
S14.15 IMPORTANCE OF CHEMICAL COMPOSITION OF ICE NUCLEI ON THE FORMATION OF ARCTIC ICE CLOUDS Setigui Keita*, Eric Girard
ESCER Centre, Department of Earth and Atmospheric Sciences, University of Quebec at Montreal, Canada (video; position 30:00)
S14.16 Combining Theoretical and Laboratory Studies to Parameterise Contact Nucleation by Mineral Dust Luke Hande*, Corinna Hoose
Karlsruhe Institute of Technology, Germany (video; position 0:00)
S14.17 The competition for water vapour between INP and CCN results in a suppression of ice Emma Simpson*, Paul Connolly, Gordon McFiggans
Centre for Atmospheric Science, the University of Manchester, UK (video; position 15:20)
S14.18 A Modelling Study of the Impact of Ice Nucleation by Different Aerosol Types on the Development of a Convective Cloud.
Thibault Hiron*1,2, Andrea Flossmann1,3
1Université Blaise Pascal, France, 2Karlsruhe Institute of Technology, Germany, 3Centre National pour la
recherche Scientifique, UMR 6016, France (video; position 0:00)
S14.19 Marine organic aerosols and k-feldspar as ice nucleating particles in the atmosphere. Jesus Vergara Temprado*, Ken Carslaw, Ben Murray
University of Leeds, UK (video; position 15:00)

Poster Session:

P14.1 A laboratory investigation of the ice nucleation efficiency of several types of mineral and soil dust Mikhail Paramonov*, Zamin A. Kanji, Ulrike Lohmann
ETH Zürich, Switzerland
P14.2 Parameterising Cloud Condensation Nuclei concentrations during HOPE
Luke Hande*1, Christa Engler2, Corinna Hoose1, Ina Tegen2
1Karlsruhe Institute of Technology, Germany, 2Leibniz Institute for Tropospheric Research, Germany
P14.3 Free tropospheric INP concentrations at the High Altitude Research Station Jungfraujoch Larissa Lacher*, Ulrike Lohmann, Zamin Kanji
ETH, Switzerland
P14.4 CCN measurements at the Princess Elisabeth Antarctica Research Station
Paul Paul1, Heike Wex*1, Alexander Mangold2, Frank Stratmann1
1Leibniz Institute of Tropospheric Research, Germany, 2Royal Meteorological Institute, Belgium
P14.5 What influences CCN properties in central Europe?
Silvia Henning*, Wolfram Birmili, Alexander Beyer, Laurent Poulain, Achim Grüner, Alfred Wiedensohler, Hartmut Herrmann, Frank Stratmann
Leibniz Institute for Tropospheric Research, Germany
P14.6 Particle Hygroscopicity of Organics in the Supercooled Temperature Range Down to Minus 10°C Silvia Henning*, Alexander Beyer, Jens Voigtländer, Frank Stratmann
Leibniz Institute for Tropospheric Research, Germany
P14.7 An approximation for freezing temperature of water droplets: homogeneous nucleation and immersion mode heterogeneous ice nucelation
Kuan-Ting O*, Robert Wood
University of Washington, Department of Atmospheric Sciences, USA
P14.8 The influence of particle generation on the immersion freezing behavior of different kinds of combustion ashes
Sarah Grawe*1, Stefanie Augustin-Bauditz1, Susan Hartmann1, Lisa Hellner1, Jan B. C. Pettersson2, Andrea Prager3, Heike Wex1, Frank Stratmann1
1Leibniz Institute for Tropospheric Research, Germany, 2University of Gothenburg, Sweden, 3Leibniz Institute of Surface Modification, Germany
P14.9 Ice Nuclei Measurements over Mountain and Coastal site along West Coast of India Sandeep Wagh*, Pradeep Kumar Pallath
Department of Atmospheric and Space Sciences, Savitribai Phule Pune University, India
P14.10 Could prediction of atmospheric dust help better modelling of heterogeneous cloud glaciation? Slobodan Nickovic1,2
1Republic Hydrometeorological Service of Serbia, Serbia, 2Institute of Physics, Serbia, 3L’Istituto di Metodologie per l’Analisi Ambientale, Italy
P14.11 Long-term Measurements of Ice Nuclei Concentration at Cape Verde
André Welti*, Paul Herenz, Élise Beaudin, Nadja Samtleben, Frank Stratmann Leibniz Institute for Tropospheric Research, Germany
P14.12 A chamber study on the impact of organic components on warm and cold cloud formation Wiebke Frey*, Paul Connolly, James Dorsey, Dawei Hu, Rami Alfarra, Gordon McFiggans University of Manchester, Centre for Atmospheric Science, UK
P14.13 Deposition ice nucleation: Can the FHH adsorption nucleation theory shed light on the temperature dependence of critical supersaturations?
Ari Laaksonen*1,2, Jussi Malila2, Athanasios Nenes3,4
1Finnish Meteorological Institute, Finland, 2University of Eastern Finland, Finland, 3Georgia Institute of Technology, USA, 4ICE-HT, Foundation for Research and Technology, Greece
P14.14 Evaluation of the immerison freezing behaviors of dust collected in northwest Greenland
Yutaka Tobo*1,2, Naoko Nagatsuka1, Jun Uetake1
1National Institute of Polar Research, Japan, 2SOKENDAI (The Graduate University for Advanced Studies), Japan
P14.15 An introduction to the BACCHUS INP Database and a review of the geographical distribution of INP measurements
James Atkinson*, Zamin A. Kanji, Berko Sierau, Ulrike Lohmann
ETH Zürich, Switzerland
P14.16 Closure between CCN and Cloud Droplet Concentrations for Warm Clouds in Western Japan Masataka Murakami*, Narihiro Orikasa, Atsushi Saito, Katsuya Yamashita
Meteorological Reseach Institute, Japan
P14.17 CCN activation characteristics in the presence of biomass burning plumes
Mercy Varghese*1, P Murugavel1, Sachin Patade1, Duncan Axisa2, Resmi E. A.1, Thara Prabha1
1Indian Institute of Tropical Meteorology, India, 2National Centre for Atmospheric Research, USA
P14.18 Seasonal variations of aerosol, CCN, IN concentrations from ground-based observations at Tsukuba, Japan Narihiro Orikasa*1, Atsushi Saito1, Katsuya Yamashita2, Takuya Tajiri1, Yuji Zaizen1, Masataka Murakami1 1Meteorological Research Institute, Japan, 2Snow and Ice Research Center, National Research Institute for Earth Science and Disaster Prevention, Japan
P14.19 Comparative study of ice nucleating efficiency of K-feldspar in immersion, deposition and contact freezing modes
Thibault Hiron*1,2, Andreas Peckhaus1, Nadine Hoffmann1, Kiselev Alexei1, Thomas Leisner1
1Karlsruhe Institute of Technology, Germany, 2Université Blaise Pascal, France
P14.20 Measurements of Aerosol hygroscopicity in a tropical site influenced by pristine and anthropogenic polluted air masses
Henrique Barbosa*1, Mira Pohlker2, Ryan Thalman3,6, Jian Wang3, Theotonio Pauliquevis4, Joel Brito1, Ulrich Pöschl2, Meinrat Andreae2, Scot Martin5, Paulo Artaxo1, Alex Araujo1
1Universidade de São Paulo, Brazil, 2Max Planck Institute for Chemistry, Germany, 3Brookhaven National Laboratory, USA, 4Universidade Federal de São Paulo, Brazil, 5Harvard University, USA, 6Snow College, USA
P14.21 Understanding ice nucleation by desert dust: Feldspar composition is important Alex Harrison*1, Thomas Whale1, Benjamin Murray1, John Morris2
1School of Earth and Environment, University of Leeds, UK, 2Asymptote Ltd., UK
P14.22 Immersion freezing ice nucleation ability of atmospheric aerosol particles: an experimental study on asian dust and local dust
Takuya TAJIRI*, Yuji ZAIZEN, Masataka MURAKAMI
Meteorological Research Institute, Japan
P14.23 Density Functional Calculations of Thermodynamic Characteristics of Droplets on Small Solid Charged and Uncharged Nuclei
Alexander Shchekin*, Tatiana Lebedeva, Dmitry Tatyanenko
St Petersburg State University, Russia
P14.24 Activity of different proteinaceous ice nucleating particles
Susan Hartmann*1, Meilee Ling2, Sarah Grawe1, Lisa Hellner1, Tina Šantl-Temkiv2, Thomas Boesen2, Heike Wex1, Kai Finster2, Jonas Jakobsson3, Jakob Löndahl3, Frank Stratmann1
1Leibniz Institute for Tropospheric Research, Germany, 2Aarhus University, Denmark, 3Lund University, Sweden
P14.25 The new INKA instruments for laboratory and field measurements of ice nucleating particles
Kristina Höhler*1, Thea Schiebel1, Jens Nadolny1, Ezra J. T. Levin2, Kaitlyn Suski2, Paul J. DeMott2, Ottmar Möhler1
1Karlsruhe Institute of Technology, Germany, 2Colorado State University, USA
P14.26 Results from the FIN-2 formal intercomparison of ice nucleation measurement methods
Paul Connolly1, Corinna Hoose*2, Xiaohong Liu3, Dan Cziczo4, Ottmar Möhler2, Paul DeMott5, Naruki Hiranuma2, Markus Petters6
1The University of Manchester, UK, 2Karlsruhe Institute of Technology, Germany, 3University of Wyoming, USA, 4Massachusetts Institute of Technology, USA, 5Colorado State University, USA, 6North Carolina State University, USA