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Trace gas exchange

Humans increasing global concentrations of long-lived greenhouse gases are the most significant cause of global climate change. An understanding of the dynamics of sources and sinks of greenhouse gases is very important to assess the future trajectories of global atmospheric concentrations. Common measurement methods for determining the greenhouse gas fluxes over land surfaces have been developed for flat and homogeneous land surfaces. Our research group has shown that trace gas exchange can also be measured in complex situations such as in heterogeneous ecosystems, in cities, or in different storeys of a forest. We use spatial technologies (mobile sensor networks), physical methods e.g. stable isotopes, and combine them with airflow models to quantify emissions.