Christof Sager


ORCID: 0000-0002-4304-5829

Christof Sager

Technische Universität Berlin      

Hardenbergstraße 36A
10623 Berlin

Room ER127

Tel.: 030 314-79486


I am a M.Sc. geoscientist by training and graduated 2017 at the Freie Universität Berlin with my thesis: Seismic-driven boulder movement and clustering in the Atacama Desert. In 2018 I was a scientific researcher at the center for astronomy and astrophysics of the Technische Universität Berlin at the RG Breitschwerdt. Since November 2018 I am a member of the Astrobiology research group, Currently I am working ony my doctoral project: patterned ground formation in the hyper-arid Atacama Desert in Chile. Therefore, I am using a multi-methological approach by combining photogrammetric techniques and GIS-analyses with geochemical and sedimentological analyses to investigate patterned grounds in the Atacama Desert, in respect to their formation, habitability and as a terrestrial analog for Mars.


Project: Patterned Ground Formation in the hyper-arid Atacama Desert

My doctoral project deals with the investigation of patterned ground (PGs) formation in the hyper-arid Atacama Desert,their comaparison to periglacial and Martian PGs, as well as their relevance as a habitat on Mars and Earth. The observed PGs will be digitally reconstructed by using the Structure-from-Motion technique. Thereby, two-dimensional drone-based aerial images of patterned grounds will be used to generate three-dimensional georeferenced content.


Three-dimensional recosntruction of a boulder cluster in the hyper-arid Atacama Desert.




Sager, C., Airo, A., Arens, F.L., Schulze-Makuch, S. , Eolian erosion of polygons in the Atacama Desert as a proxy for hyper-arid environments on Earth and beyond. Scientific Reports 12, 12394 (July 2022). DOI: 10.1038/s41598-022-16404-y



Sager, C., Airo, A., Arens, F.L., Schulze-Makuch, S, New types of sand wedge polygons in the salt cemented soils in the hyper-arid Atacama Desert (January 2021). Geomorphology, Volume 373
doi: 10.1016/j.geomorph.2020.107481



Sager, C., Airo, A., Arens, F.L.,Rabethge, C., Schulze-Makuch, D., New types of boulder accumulations in the hyper-arid Atacama Desert (February 2020). Geomorphology, Volume 350
DOI: 10.1016/j.geomorph.2019.106897


Conference Paper

C. Sager, A. Airo, F. Arens, M. Baque, J. de Vera, D. Schulze-Makuch, Polygonated soils in the hyper-arid Atacama Desert and their relevance for patterned ground on Mars (January 2018). Conference: 3rd Astrobiology Graduates in Europe (AbGradE) symposium

M. Baque, C. Sager, A. Airo, D. Schulze-Makuch,J. de Vera, Distribution of Raman biosignatures in salt nodules from the hyperarid core of the Atacama Desert (January 2018), Conference: 18th European Workshop on Astrobiology EANA2018