Simulation of Greenhouse Gases in the Atmosphere (Vardag - Group)

Atmospheric transport models can help us better understand the carbon cycle. By simulating the dispersion of greenhouse gases in the atmosphere, we investigate where air masses originate and which processes ultimately influence their concentration. These analyses can inform us about the strength of natural processes such as photosynthesis and respiration, and also contribute to quantifying and independently verifying anthropogenic emissions.

Our group investigates the distribution of greenhouse gases in the atmosphere on scales ranging from global to regional and local. We use different models to capture the relevant processes at each scale and combine the model results with measurements as well as additional data, such as emissions inventories. Using inverse estimation methods, we quantify and localize greenhouse gas emissions by adjusting the emission inventories to minimize the difference between measured and modeled concentrations. To support mitigation efforts, we work with our colleagues at the Heidelberg Center for the Environment to explore how our data and results can effectively advance climate action.