Long-term surface carbon dioxide flux monitoring at the Ketzin carbon dioxide storage test site

摘要

Subsurface geologic storage of carbon dioxide calls for sophisticated monitoring tools with respect to long-term safety and environmental impact issues. Despite extensive research, many factors governing the fate of injected carbon dioxide (CO₂) remain unclear. To identify possible risks through leakage of the CO₂ storage reservoir, a program for monitoring of the CO₂ flux at the surface was started at the Ketzin test site, which allows to distinguish between natural temporal and spatial flux variations and a potential leakage.