Christian worked as project manager at Jena-Optronik GmbH and Post-Doc Researcher at the Department of Earth Observation of the Friedrich-Schiller-University Jena. He received his degree as Diplomgeograph at the Friedrich-Schiller-University Jena in 2006. He got his PhD in 2011 at the Friedrich-Schiller-University in Jena. Working in several applied research projects in the academic and commercial sector (Uni Jena, Uni Würzburg in cooperation with DLR, Jena-Optronik GmbH) on applied Earth observation, he realized research projects on Earth observation of vegetation in the arid and semi-arid ecosystems, boreal forest monitoring, phenology mapping and climate change mitigation and adaption, health mapping, and wetland monitoring.