Composition and transport of aerosol particles in the UTLS and their interactions with cirrus clouds (A04)

• Subject Area: Atmospheric Science
• Term: since 2021
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 428312742

We will use data from past and upcoming HALO missions and from IAGOS-CARIBIC to extend the available data set on UTLS aerosol composition. Additionally, we will conduct a dedicated aircraft campaign with a small research aircraft (Learjet) to study small scale mixing in the extratropical UTLS region. In a laboratory campaign at the renewed AIDA chamber of KIT, we will study chemical processing and ice nucleation ability of typical UTLS aerosol components, including aircraft emissions such as lubrication oil, under temperature conditions relevant for the UTLS.

• DFG Programme: CRC/Transregios
• Subproject of: TRR 301: The tropopause region in a changing atmosphere
• Applicant Institution: Johannes Gutenberg-Universität Mainz
• Project Heads: Professor Dr. Stephan Borrmann, until 12/2025; Dr. Franziska Köllner, until 12/2025; Dr. Yun Li; Privatdozent Dr. Johannes Schneider; Professor Dr. Alexander Vogel