SHIVA - Stratospheric Ozone: Halogen Impacts in a Varying Atmosphere

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Johann Wolfgang Goethe Universität Frankfurt, Germany (GUF)

guf

The Institute for Atmospheric and Environmental Sciences is part of the department of Geosciences/Geography of the J.W. Goethe University Frankfurt. The Institute for Atmospheric and Environmental Sciences undertakes studies to improve the understanding of atmospheric processes. The institute comprises working groups on theoretical meteorology, climate, aerosol research, environmental analytics and experimental atmospheric research. The work proposed here will be performed in the working group on experimental atmospheric research led by Prof. J. Curtius. The focus of this working group is to improve the understanding of atmospheric processes through measurements of aerosols and gases in the atmosphere. Within this proposal the group will perform measurements of a wide range of halocarbons on board of the new German research aircraft HALO and using samples collected with a balloon borne cryogenic whole air sampler. The measurements on HALO will be performed using in-situ gas chromatography coupled with mass spectrometry and ECD detection. This instrument is currently under development, based on an instrument deployed during the SPURT campaigns. The balloon samples are analysed in collaboration with UEA for a very large suite of halogenated trace gases. The measurements will serve to investigate the input of halogens, in particular bromine compounds from very short lived species (VSLS) to the stratosphere, as well as their further partitioning and transport in the stratosphere. Age of air observations will be available to the project, to investigate the evolution of this transport parameter over the last three decades.

Tasks within SHIVA:

  • Coordination of aircraft payload (WP-2).
  • Measurements of VSLS species using in-situ GC/MS measurements (WP-2).
  • Quantification of bromine input into the stratosphere (WP-5).
  • Quantification of chlorine input into the stratosphere (WP-5).
  • Provision of data set on mean age of stratospheric air.

Involved scientist:

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