11:30am - 11:45am
TH2-1: 1

Chemical Composition, Mixing State, and Sources of Arctic Aerosols During the ARTofMELT Expedition

Diego Fellin^1,2, Liine Heikkinen^3,4, Fredrik Mattsson^3,4, Julia Kojoj^3,4, Claudia Mohr^3,4,5,6, Ilona Riipinen^3,4, Paul Zieger^3,4, Luisa Ickes⁷, Elena Barbaro^1,2, Andrea Gambaro¹, Stefania Gilardoni²

¹Department of Environmental Sciences, Informatics and Statistics, Ca' Foscari University of Venice, Italy; ²Institute of Polar Sciences, National Research Council, Italy; ³Department of Environmental Science, Stockholm University, Sweden; ⁴Bolin Centre for Climate Research, Sweden; ⁵Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Switzerland; ⁶Department of Environmental Systems Science, ETH Zurich, Switzerland; ⁷Department of Space, Earth and Environment, Chalmers University of Technology, Sweden

11:45am - 12:00pm
TH2-1: 2

Sea Ice as a Source of Biological Ice Nucleation Particles in the Arctic Atmosphere

Lasse Jensen¹, Jennie Spicker Schmidt¹, Gabriel Freitas², Martina D’Agostino¹, Camille Mavis³, Lotte Dyrholm Thomsen¹, Eva R. Kjærgaard¹, Dorte Søgaard^1,4, Bernadette Rosati¹, Marianne Glasius¹, Merete Bilde¹, Jessie Creamean³, Lars Chresten Lund-Hansen¹, Paul Zieger², Kai Finster¹, Tina Santl-Temkiv¹

¹Aarhus University, Denmark; ²Stockholm University, Sweden; ³Colorado State University, USA; ⁴Greenland Climate Research Centre, Greenland

12:00pm - 12:15pm
TH2-1: 3

Investigation of Arctic Organic Aerosols and their Marine Precursors

Lotte Thomsen¹, Martine Rasmussen¹, Celine R. Frederiksen¹, Alina Mostovaya², Jennie S. Schmidt³, Julia Kojoj⁴, Christian D. F. Castenschiold³, Tina Santl-Temkiv³, Paul Zieger⁴, Johnna M. Holding², Merete Bilde¹, Marianne Glasius¹

¹Department of Chemistry, Aarhus University, 8000 Aarhus C, Denmark; ²Department of Ecoscience, Aarhus University, 8000 Aarhus C, Denmark; ³Department of Biology, Aarhus University, 8000 Aarhus C, Denmark; ⁴Department of Environmental Science, Stockholm University, 114 18 Stockholm, Sweden

12:15pm - 12:30pm
TH2-1: 4

Influence of free tropospheric aerosols on the microphysical and radiative properties of a coupled low-level cloud in the central Arctic: a case study from the ARTofMELT expedition

Roman Pohorsky¹, Radiance Calmer¹, Berkay Dönmez¹, Ian Brooks², Heather Guy², Paul Zieger³, Lea Haberstock³, Julia Kojoj³, Nicolas Fauré⁴, Sonja Murto⁵, Michael Tjernström⁵, Jessie Creamean⁶, Julia Schmale¹

¹Extreme Environments Research Laboratory, Ecole Polytechnique Fédérale de Lausanne, Sion, 1950, Switzerland; ²School of Earth and Environment, University of Leeds, Leeds, LS2 9JT, U.K.; ³Department of Environmental Science and Bolin Centre for Climate Research, Stockholm University, Stockholm, SE-106 91, Sweden; ⁴Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, SE-41296, Sweden; ⁵Department of Meteorology and Bolin Centre for Climate Research, Stockholm University, Stockholm, SE-106 91, Sweden; ⁶Department of Atmospheric Science, Colorado State University, Fort Collins, CO, 80523, USA