Atmospheric Chemistry

Our research intends to understand the tropospheric multiphase system. Model development is based on experimental work in the laboratory and in the field. Lab work utilises state-of-the-art physical and analytical chemistry methods to study gas phase, aqueous phase, organic phase, surface and, alltogether, multiphase phenomena. Field work aims to understand chemical processing and composition of tropospheric particles, clouds, fog and rain in the complex interplay of all compartments involved.

Teams

Die Forschung der Abteilung Chemie der Atmosphäre des TROPOS behandelt das troposphärische Multiphasensystem.

Laboruntersuchungen nutzen state-of-the-art- Methoden der physikalischen und analytischen Chemie, um Prozesse in der Gasphase, wässrigen Phase, in organischen Partikeln, an Oberflächen und insgesamt im troposphärischen Multiphasensystem quantitativ zu charakterisieren. Felduntersuchungen zielen darauf ab, chemische Prozessierung und Zusammensetzung der troposphärischen Partikel, Wolken, Nebel und Regen im komplexen Zusammenspiel aller Kompartimente zu verstehen. Eigene Modellentwicklungen basieren schließlich auf den genannten experimentellen Arbeiten im Labor und im Feld.

Teams:

Field experiments

The chemical characterisation of anthropogenic aerosol, chemical multiphase processes and the formation and deposition of atmospheric trace gases are examined.

Cloud and precipitation chemistry and process studies

The physicochemical characterization of gas and particle phase before, during and after clouds, chemical interactions of cloud droplets, gas and particle phase.

Chemical aerosol characterization and process studies

The chemical characterization of atmospheric particles, their sources, transportand their importance for heterogeneous and aqueous phase chemistry.

Mineral Dust and CVAO

Marine aerosol particles and their connection to the ocean surface

Betrachtung der Interaktionen zwischen Ozean und Atmosphäre, Quellen, Transport und Bildungswege des marinen Aerosols.

Lab experiments

Heterogeneous, gas-phase and homogeneous aqueous phase processes, particle modifications in an aerosol chamber and the nucleation in a flow tube are realised.

Analytical Atmospheric Chemistry

Gas phase processes

Atmospheric Chemistry Department - Chamber (ACD-C)

ACD-C with its twin chamber setup is a unique research infrastructure.

Liquid phase processes

Multiphase Modeling

Multiphase Modelling - CAPRAM

Building on laboratory and field experiments, detailed chemical mechanisms are developed and implemented within numerical models to investigate multiphase atmospheric processes. Specialized modules are continuously developed and integrated to enhance the accuracy and performance of large-scale atmospheric simulations.

Incubator and emerging topics

Kalibrierzentren

OGTAC-CC

The Atmospheric Chemistry Department (ACD) of TROPOS hosts the Organic Tracers and Aerosol Constituents - Calibration Centre (OGTAC-CC), which is the first calibration center for these class of compounds worldwide, providing a strong benefit to the aerosol community, as it harmonizes approaches for the chemical analysis of organic particulate constituents.

CCWaC