Atmospheric aerosol-cloud-climate interactions (e.g. particle oxidation and photosensitization, secondary aerosol and biogenic particle formation, molecular composition-, phase-, acidity- and structure- changes, heterogeneous ice nucleation ...) are fundamental processes in the atmosphere. Despite the importance of these processes in energy transfer, cloud dynamics, precipitation formation, and hence in climate change, little is known about the molecular mechanism and the respective contribution of different structural and chemical surface properties of the atmospheric aerosols and ice nuclei controlling these processes in the atmosphere. For example, observation of atmospheric ice nucleation has bridged the scales from macroscopic to microscopic levels (satellites, balloons, mountain stations, flight campaigns, and laboratory measurements) and has delivered a wide variety of important results in cloud microphysics, particularly concerning the ice nucleation ability of atmospheric aerosol particles. However, fundamental understanding of the cloud dynamics and properties, which play the major role in the climate system, will require the understanding of water-aerosol Surface Interactions.

To advance our knowledge about atmospheric processes, this session aims to bring together experimental and theoretical approaches concerned with investigating water- and ice-solid interactions as well as ice nucleation processes on the molecular level. The goal is to fill the gap between the cloud and atmospheric properties and the aerosol-water surface interactions. We aim to gather contributions from laboratory and theoretical investigations that deal with the interaction of water and ice with atmospheric relevant mineral and biological surfaces.

- Invited speaker: Prof. Dr. Mischa Bonn, Max Planck Institute for Polymer Research, Mainz , Germany.
- Solicited talk: "Hydrogen Bonding at the Ice Surface"

- Most exciting for non-scientific public talk: "Elucidating how trace gases interact with ice surfaces", by Dr. Jenée D. Cyran

Public information:
In the “Atmospheric Surface Science” session we bridge experimental and theoretical findings to elucidate water-ice-aerosol interactions that occur in the atmosphere. The focus is on the molecular level processes. We discuss the origin of the interactions and their impact on our hydrosphere in general and climate in particular.

Convener: Ahmed Abdelmonem | Co-conveners: Johannes Lützenkirchen, Merve Yesilbas
| Thu, 11 Apr, 10:45–12:30
Room 0.49
| Attendance Thu, 11 Apr, 14:00–15:45
Hall X5

Attendance time: Thursday, 11 April 2019, 14:00–15:45 | Hall X5

Chairperson: Johannes Luetzenkirchen and Merve Yesilbas
Ice Nucleation on the Molecular Level
Hall X5
X5.310 |
Ahmed Abdelmonem, Sanduni Ratnayake, and Johannes Luetzenkirchen
X5.311 |
Ellen Backus, Ahmed Abdelmonem, and Mischa Bonn
X5.312 |
Max Lukas, Anna Theresa Kunert, Janine Fröhlich-Nowoisky, Ahmed Abdelmonem, Ulrich Pöschl, Mischa Bonn, and Ellen H. G. Backus
X5.313 |
Merve Yesilbas, Cheng Choo Lee, and Jean-François Boily
X5.314 |
Ana A. Piedehierro, Lise Deschutter, André Welti, Yrjö Viisanen, and Ari Laaksonen
X5.315 |
| solicited
Influence of surface modification on the ice nucleation properties of mineral dust particles
Kristian Klumpp, Anand Kumar, Claudia Marcolli, and Thomas Peter
X5.316 |
Jérôme Gabathuler
X5.317 |
Nurun Nahar Lata, Jiarun Zhou, Sapna Sarupria, and Will H. Cantrell
Water-Ice-Aerosol Surface Interactions
X5.318 |
Sea salt aerosol influences water-ice-surface on metal oxide aerosols
Sanduni Ratnayake, Johannes Lützenkirchen, and Ahmed Abdelmonem
X5.319 |
Jake Wilson, Gerhard Lammel, Ulrich Pöschl, Manabu Shiraiwa, and Thomas Berkemeier
X5.320 |
Frank Heberling, Tin Klacic, Tajana Preocanin, Peter Eng, and Johannes Lützenkirchen
X5.321 |
Tin Klačić, Marko Tomić, Danijel Namjesnik, Borna Pielić, and Tajana Preočanin
X5.322 |
Yuli Zhang, Yi Liu, and Mengchu Tao
X5.324 |
Dasom Lee, S.Y. Simon Wang, Hyun Cheol Kim, and Jin-ho Yoon
X5.325 |
Thermal adaptation of gross primary production across biomes
Bingxue Wang and Shuli Niu