Revealing the Molecular Fingerprints of Arctic Aerosols

During her PhD studies, Lotte Dyrholm Thomsen researched the molecular composition of organic atmospheric aerosols and dissolved organic matter in the Arctic, with a particular focus on Greenland. Atmospheric aerosols are small particles in the atmosphere that affect the climate, and their climate effect is associated with high uncertainties. 

Lotte Dyrholm Thomsen studied the organic fraction of Arctic aerosols with a focus on their formation from dissolved organic matter in the ocean.

This PhD project is the first to characterize the molecular composition of Arctic organic aerosols and examine the impact of direct emissions of marine dissolved organic matter on a molecular level. By characterizing the molecular composition of organic aerosol across multiple Arctic sites, the study provides a broader perspective of Arctic organic aerosols. 

The PhD study was completed at the Department of Chemistry, Faculty of Natural Sciences, Aarhus University.

This summary was prepared by the PhD student.

Time: Friday, 9 October at 13:00
Place: Building 1514, room 213, Lecture Theatre Aud I, Department of Chemistry, Aarhus University, Langelandsgade 140, 8000 Aarhus C
Title of PhD thesis: Molecular Characterization of Arctic Organic Aerosols and Marine Dissolved Organic Matter
Contact information: Lotte Dyrholm Thomsen, e-mail: lotteth@chem.au.dk, tel.: +45 27130990
Members of the assessment committee:
Professor Claudia Mohr, Department of Environmental Systems Science, ETH Zürich and Paul Scherrer Institute, Switzerland
Senior Researcher Stefano Decesari, Italian National Research Council, Institute of Atmospheric Sciences and Climate, Italy
Associate Professor Martin Bremholm (chair), Department of Chemistry, Aarhus University, Denmark
Main supervisor: Professor Marianne Glasius, Department of Chemistry, Aarhus University, Denmark
Co-supervisor: Professor Merete Bilde, Department of Chemistry, Aarhus University, Denmark
Language: The PhD dissertation will be defended in English

The defence is public.

The PhD thesis is available for reading at the Graduate School of Natural Sciences/GSNS, Ny Munkegade 120, building 1521, 8000 Aarhus C