Forschung (nur englisch)

The ORCAS group applies a multidisciplinary approach including researchers from several scientific disciplines such as chemists, biologists, geologists and physicists, and applies a wide range of analytical tools to study the life cycle of trace gases in nature.  The ORCAS group specialises in the application of stable isotope techniques (isotope ratio mass spectrometry and laser adsorption spectroscopy) to study the biogeochemical cycles of important atmospheric trace gases such as methane, chloromethane and bromomethane.

The main research interests of the group are listed below:

Atmospheric organic trace gases with one carbon unit (C1) and their exchange between the biosphere, pedosphere and atmosphere

  • Application of stable isotope tools to gain more information about formation and fate of C1 organic trace gases
  • Examining the natural formation of ozone destroying compounds such as chloromethane and bromomethane (lab and field measurements)
  • Investigations of aerobic methane formation in plants and soil
  • Study environmental parameters that control emissions of biospheric C1 gases

Biogas (methane and carbon dioxide)

  • Application of novel analytical isotope techniques (laser absorption spectroscopy) to investigate gas formation in anaerobic digesters
  • Apply isotope labeled organic compounds to identify main reaction pathways in anaerobic digesters

Authenticity studies of biomaterials and paleoclimatic studies

  • Development of new isotope methods for authenticity and paleoclimate studies
  • Geographical identification of wood/food
  • Paleoclimate information from tree rings and sediments