Mountain permafrost is degrading worldwide, and the consequences are becoming increasingly visible: destabilizing rock slopes that fail as large landslides or rock-ice avalanches, thawing ice-rich terrain that feeds sudden and destructive debris flows, and ground subsidence that threatens high-mountain infrastructure. Recent catastrophic events in mountain regions around the globe have shown how these processes can cascade across the landscape, affecting water resources, ecosystems, settlements, and tourism. Yet much of this change remains hidden below the surface – making the monitoring and understanding of mountain permafrost systems more important than ever.

This session brings together the full breadth of mountain permafrost and periglacial research, from the high Arctic through continental mountain ranges (e.g., Alps, Andes, Tibetan Plateau, Scandes) to the arid unglaciated areas of Antarctica. We welcome studies of ice-rich and ice-poor landforms alike, including rock glaciers, talus slopes, plateaus, ice-cored moraines, steep rock walls, and thermokarst terrain.

We particularly encourage contributions that advance the understanding of processes at slope to regional scales, and studies that combine multiple methods or introduce newly developed approaches. Contributions may include, among others:
- geophysical measurements and analysis (e.g., ERT, SRT, DAS, EM, IP, GPR, TLS);
- in-situ monitoring (e.g., ground temperatures, discharge, kinematics, GNSS);
- remote sensing (e.g., optical, thermal, InSAR, UAV surveys);
- numerical modeling of past, present and future processes and scenarios;
- early warning systems and hazard assessment;
- machine learning and AI applications for permafrost data analysis;
- long-term monitoring series and the characterization of new permafrost sites with state-of-the-art methods.

Our goal is to improve the understanding of how mountain permafrost responds to climate change, and to provide a meeting point for the international mountain permafrost community – fostering exchange, joint research developments, and new collaborations across disciplines.

Early-career scientists are warmly encouraged to submit their work to this session.