I work as a professor in Meteorology at the Department of Meteorology, Stockholm University. My main research interests are clouds and aerosol particles and the various ways they interact and influence weather, circulation, and climate. Most of my publications are found here.
Interactions between aerosol particles and tropical convective clouds are a major source of uncertainty in the scientific understanding of climate change. AC3S will use new observational data and numerical models to address this challenge.
The polar regions are especially sensitive for climate change and the warming the Arctic is more than twice as fast as elsewhere on Earth. The effects of this warming are large, with a dramatic loss of sea ice as an example.
Aerosol-cloud interactions (ACI) remain the largest source of uncertainty in past, present, and future radiative forcing, impeding credible climate projections.
The project is part of the EU funded Marie Skłodowska-Curie Innovative Training Network (ITN) named iMIRACLI (innovative MachIne leaRning to constrain Aerosol-cloud CLimate Impacts) and examines how aerosols affect the Arctic mixed-phase clouds.
MOCCHA (Microbiology-Ocean-Cloud-Coupling – in the High Arctic) – ARCTIC OCEAN 2018 was an international and interdisciplinary research expedition to the central Arctic Ocean during the summer of 2018.
Can polar clouds dampen global warming? The current consensus states that clouds enhance surface warming in polar regions but that their impact on the net energy budget at the top of the atmosphere, and thus global climate, is either small or cooling.
Feedbacks between a changing climate and vegetation (CLIVE): The role of volatile organic compounds and biogenic aerosols. CLIVE aims to explore how forests, particularly in boreal and tropical regions, influence climate change through their interactions with carbon and water cycles.