Sources and Sinks of Gases in the Earth’s Critical Zone: In situ Sensors and Isotopic Constraints (B03)

• Subject Area: Analytical Chemistry ; Atmospheric Science ; Physical Chemistry of Molecules, Liquids and Interfaces, Biophysical Chemistry
• Term: since 2013
• Project identifier: Deutsche Forschungsgemeinschaft (DFG) - Project number 218627073

B03 asks how gases and isotopes reflect environmental conditions and the functional biodiversity of the subsurface Critical Zone. We develop new technologies for making high-frequency multi-gas and isotope measurements using Raman spectroscopy and apply simultaneous multi-gas measurements in the field and in laboratory settings to link gas fluxes to microbial metabolisms. We develop and apply novel radiocarbon methods to determine rates of biogeochemical transformations and trace flows of subsurface carbon.

• DFG Programme: Collaborative Research Centres
• Subproject of: SFB 1076: AquaDiva: Understanding the Links between Surface and Subsurface Biogeosphere
• Applicant Institution: Friedrich-Schiller-Universität Jena
• Project Heads: Professor Dr. Torsten Frosch; Professor Dr. Jürgen Popp, until 6/2017; Professorin Dr. Susan Trumbore