Stefan's primary area of interest is the physics of remote sensing. He is interested in utilising applied physics for monitoring dynamic processes in vegetation incl. vegetation/atmosphere energy and matter exchange using space- and air-borne remote sensing data. His current focus lies in the remote sensing of bushfires (extend, intensity, severity, etc.) and resulting greenhouse gas and other emissions. Stefan also has a strong interest in remote sensing sensor technology and the application of modern information technology, like cluster and distributed computing, for processing the huge amounts of data generated by modern remote sensing systems.