International Collaboration in Chemistry: Development and application of a tuneable diode laser spectrometer for water isotope measurement and scientific studies during cloud simulation experiments in the AIDA chamber

• Antragsteller: Professor Dr. Volker Ebert; Dr. Ottmar Möhler
• Fachliche Zuordnung: Physikalische Chemie von Molekülen, Flüssigkeiten und Grenzflächen, Biophysikalische Chemie ; Physik und Chemie der Atmosphäre
• Förderung: Förderung von 2010 bis 2016
• Projektkennung: Deutsche Forschungsgemeinschaft (DFG) - Projektnummer 181901664

We propose a series of experiments in a cloud simulation chamber to investigate the inhibition of ice growth in cold cirrus clouds using the isotopic fractionation of water molecules during ice condensation as a novel tracer of microphysical processes. The development of the water isotope spectrometer and its application to investigate the inhibition of ice growth in simulated cirrus clouds is designed as a collaborative project between three experienced partners: PCI (Expertise: Laser/Molecular spectroscopy + TDL Sensors), Univ. Chicago (Atmospheric science and isotope research using airborne sensors) and KIT (Cloud experiments using the AIDA simulation chamber).

• DFG-Verfahren: Sachbeihilfen
• Internationaler Bezug: USA
• Beteiligte Personen: Professorin Dr. Elizabeth J. Moyer; Dr. Harald Saathoff