3:00pm - 3:15pm
TH4-1: 1

Ice nucleating particles in Greenlandic glacial outwash plains

Nora Bergner¹, Grace Marsh², Gaston Lenczner³, Joanna Dyson¹, Ianina Altshuler², Kevin Barry⁴, Alexander Böhmländer⁵, Lisa Bröder⁶, Daniel Farinotti^7,8, Aita Gantenbein⁶, Benjamin Heutte¹, Kristina Höhler⁵, Larissa Lacher⁵, Roman Pohorsky¹, Devis Tuia³, Julian Weng⁹, Julia Schmale¹

¹Extreme Environments Research Laboratory, EPFL Valais Wallis, Sion, 1950, Switzerland; ²Microbiome Adaptation to the Changing Environment laboratory, EPFL Valais Wallis, Sion, 1950, Switzerland; ³Environmental Computational Science and Earth Observation laboratory, EPFL Valais Wallis, Sion, 1950, Switzerland; ⁴Department of Atmospheric Science, Colorado State University, Fort Collins, CO 80523-1371, USA; ⁵Institute of Meteorology and Climate Research Atmospheric Aerosol Research (IMKAAF), 76344, Karlsruhe Institute of Technology (KIT), Karlsruhe, Germany; ⁶Geological institute, ETH Zürich, Zürich, 8092, Switzerland; ⁷Laboratory of Hydraulics, Hydrology and Glaciology (VAW), ETH Zürich, Zürich, 8093, Switzerland; ⁸Swiss Federal Institute for Forest, Snow and Landscape Research WSL, Birmensdorf, 8903, Switzerland; ⁹Laboratory of Atmospheric Chemistry, Paul Scherrer Institute, Villigen, 5232, Switzerland

3:15pm - 3:30pm
TH4-1: 2

Extreme air pollution events at high latitudes in 2024: In-situ aerosol measurements in Iceland, Antarctica and Svalbard, including plumes of High Latitude Dust, Saharan Dust, and Black Carbon haze

Pavla Dagsson Waldhauserova^1,2,3, Outi Meinander^4,3, IceDust members³

¹Agricultural University of Iceland, Iceland; ²Czech University of Life Sciences Prague, Czech Republic; ³Icelandic Aerosol and Dust Association, IceDust, Iceland; ⁴Finnish Meteorological Institute, Helsinki, Finland

3:30pm - 3:45pm
TH4-1: 3

The role of light absorbing aerosol on the atmospheric heating rate in remote areas (Arctic region: Ny-Ålesund)

Sofia Cerri^1,2, Niccolò Losi², Christoph Ritter⁵, Stefania Gilardoni³, Mauro Mazzola⁴, Marion Maturilli⁵, Andrea Doldi², Ezio Bolzacchini², Luca Ferrero*²

¹DAIS Department of Environmental Sciences, Computer Science and Statistics, University of Ca’ Foscari, Via Torino 155, 30172 Venezia Mestre; ²GEMMA Centre, Department of Earth and Environmental Sciences, University of Milano Bicocca, Piazza della Scienza 1, 20126, Milan, Italy; ³National Research Council, Institute of Polar Sciences (CNR ISP), Via Cozzi 53, Milano, 20125, Italy; ⁴National Research Council, Institute of Polar Sciences (CNR ISP), Via P. Gobetti 101, Bologna, 40129, Italy; ⁵Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Telegraphenberg 43A, 14473, Potsdam, Germany

3:45pm - 4:00pm
TH4-1: 4

Properties of Refractory Black Carbon over Northern Greenland During the Canadian Wildfire Season

Alia Lauren Khan¹, Ella Hall¹, Darrel Baumgardner², Dagen Hughes², Giovanni Muscari³, Filippo Cali' Quaglia³, Virginia Ciardini³, Peng Xian⁴

¹Western Washington University, United States of America; ²Droplet Measurement Technology; ³Istituto Nazionale di Geofisica e Vulcanologia; ⁴Naval Research Laboratory

4:00pm - 4:15pm
TH4-1: 5

Where does black carbon over the Arctic come from? Combined observations and modelling from Island Bely, Mt. Zeppelin, and the MOSAiC expedition

Olga Popovicheva¹, Marina Chichaeva¹, Nikolaos Evangeliou², Benjamin Heutte³, Julia Schmale³, Nikolay Kasimov¹

¹Moscow State University, Russian Federation; ²The Climate and Environmental Research Institute NILU, Kjeller, Norway; ³Extreme Environment Research Laboratory, EPFL, Sion, Switzerland

4:15pm - 4:30pm
TH4-1: 6

Particle deposition on snow at two Arctic sites

Antonio Donateo¹, Gianluca Pappaccogli^1,2, Federico Scoto^1,2, Natalie Brett³, Roman Pohorsky⁴, Gilberto J. Fochesatto⁵, Kathy S. Law³, Julia Schmale⁴, William Simpson⁶, Stefano Decesari¹

¹Institute of Atmospheric Sciences and Climate (ISAC), Italy; ²Centro Ricerche ENI-CNR " Aldo Pontremoli", Lecce, 73100, Italy; ³Sorbonne Université, UVSQ, CNRS, LATMOS, France; ⁴Extreme Environments Research Laboratory, Ecole Polytechnique Fédérale de Lausanne, Switzerland; ⁵Department of Atmospheric Sciences, University of Alaska Fairbanks, Fairbanks, USA; ⁶Department of Chemistry and Biochemistry, University of Alaska Fairbanks, Fairbanks, USA