Leona Repnik

GM Geomorphology

The 2025 Outstanding Student and PhD candidate Presentation (OSPP) Award is awarded to Leona Repnik for the poster/PICO entitled:

Historical photogrammetry for DoDs in deglaciating environments: challenges and opportunities (Repnik, L.; Breillad, A.; Giovanardi, A.; Comiti, F.; Gianini, M.; Argentin, A.-L.; Pitscheider, F.; Lane, S. N.)

Click here to download the poster/PICO file.

Leona Repnik is a PhD researcher at the University of Lausanne (Switzerland), supervised by Prof. Dr. Stuart Lane (University of Lausanne) and Prof. Dr. Francesco Comiti (University of Padova). She is part of the ALTROCLIMA project funded by the Swiss National Science Foundation and the Autonomous Province of Bozen-Bolzano, a collaboration between the University of Lausanne and the Free University of Bolzano, aiming to understand Alpine sediment trends under rapid climate change. Leona's research focuses on historical changes in sediment sources and transport at decadal timescales, considering both hillslope and glacial contributions.

At EGU25, Leona presented the challenges and opportunities in applying archival SfM-MVS photogrammetry in quantifying change in deglaciating Alpine environments, using the Turtmann basin (Valais, Switzerland) as a case study. She explained the photogrammetric processing for reconstructing historical landscapes to create a Digital Elevation Model (DEM), the required DEM corrections and calculating the DEM of Difference (DoD). She highlighted the challenges associated with this method for assessing geomorphological changes, which arise from the presence of vegetational, glacial and periglacial processes in deglaciating landscapes.