Understanding atmospheric transport of trace species and aerosols is a topic that critically depends on bringing modeling and observational efforts together. The purpose of this session is to enable such connections, with a secondary focus on Lagrangian modeling of the atmosphere.

Vertical and long-range transport of trace species and aerosols are key factors controlling their concentrations and variability. Various surface emissions have a strong direct influence on the upper troposphere via several vertical transport processes, especially cumulus convection and lifting associated with frontal systems (warm and cold conveyor belts). Downward transport occurs via accompanying subsidence, while precipitation scavenging is one of the key sinks for many gases and aerosols. Long-range and intercontinental transport result in measurable enhancements of gas and aerosol concentrations in populated and agricultural regions due to industrial and biomass burning emissions thousands of kilometers upstream. Even many "remote" marine regions are far from being free from the direct influence of relatively short-lived anthropogenically produced gases and aerosols produced over far away continents. Additional processes such as stratosphere-troposphere exchange and lightning can also influence the chemical composition of downwind locations. Numerous methods have been applied to study transport-related issues, including targeted and long-term in-situ measurements as well as remote sensing (ground-based and satellite) and models (cloud-scale to global).

Lagrangian models are a very important research tool in this context, yet numerous scientific issues remain. We therefore invite studies contributing to advancing Lagrangian models, including the improvement of parameterizations of atmospheric processes, the quantitative assessment of uncertainties, improving model performance, and the proper coupling of Lagrangian models to Eulerian Numerical Weather Prediction and General Circulation models. In addition we invite contributions from applied Lagrangian research, involving observational data. We specially encourage those studies which synergistically combine various types of models and observations.

Convener: Heiko Bozem | Co-conveners: Sabine Eckhardt, Daniel Kunkel, Ignacio Pisso, Petra Seibert
| Mon, 08 Apr, 14:00–18:00
Room -2.47
| Attendance Mon, 08 Apr, 10:45–12:30
Hall X5

Monday, 8 April 2019 | Room -2.47

Chairperson: Sabine Eckhardt
14:00–14:15 |
| solicited
Charles Brock, Christina Williamson, Agnieszka Kupc, Thaopaul Bui, Pedro Campuzano-Jost, Douglas Day, Maximilian Dollner, Karl Froyd, Jose Jimenez, Joseph Katich, Daniel Murphy, Benjamin Nault, Eric Ray, Gregory Schill, Jason Schroder, Joshua Schwarz, and Bernadett Weinzierl
14:15–14:30 |
Jacob Schacht, Bernd Heinold, and Ina Tegen
14:30–14:45 |
Anna Beata Kalisz Hedegaard, Andreas Hilboll, Hans Schlager, and Mihalis Vrekoussis
14:45–15:00 |
Victor Lannuque, Bastien Sauvage, Valérie Thouret, Gilles Athier, Romain Blot, Damien Boulanger, Jean-Marc Cousin, and Philippe Nédélec
15:00–15:15 |
Martin Cussac, Virginie Marécal, Valérie Thouret, Béatrice Josse, and Bastien Sauvage
15:15–15:30 |
Holger Tost, Katharina Kaiser, and Peter Hoor
15:30–15:45 |
Lukas Krasauskas, Jörn Ungermann, Bärbel Vogel, Michael Höpfner, Felix Friedl-Vallon, Peter Preusse, and Martin Riese
Coffee break
Chairperson: Petra Seibert
16:15–16:30 |
Valentin Lauther, Johannes Wintel, Emil Gerhardt, Andrea Rau, Peter Hoor, Björn Kluschat, Bärbel Vogel, and C. Michael Volk
16:30–16:45 |
Yun Li, Talat Khattatov, Bärbel Vogel, Silvia Bucci, Bernard Legras, Francesco D'Amato, Silvia Viciani, Greta Stratmann, Hans Schlager, and Fred Stroh
16:45–17:00 |
Chris Wilson, Sarah Monks, Louisa Emmons, James Hannigan, Detlev Helmig, Nicola Blake, and Donald Blake
17:00–17:15 |
Yi Liu, Hongbin Chen, Zhaonan Cai, Jinqiang zhang, Yuejian Xuan, Zhixuan Bai, Jianchun Bian, and Daren Lv
17:15–17:30 |
| presentation
Felix Ploeger, Bernard Legras, Edward Charlesworth, Xiaolu Yan, Mohamadou Diallo, Paul Konopka, Thomas Birner, Mengchu Tao, Andreas Engel, and Martin Riese
17:30–17:45 |
Edward Charlesworth, Felix Ploeger, Frauke Fritsch, and Patrick Joeckel
17:45–18:00 |
Liubov Poshyvailo, Felix Ploeger, Stephan Fueglistaler, Mengchu Tao, and Martin Riese