Multi-hazard susceptibility mapping of cryospheric hazards in a high-Arctic environment: Svalbard Archipelago

Abstract. The Svalbard Archipelago represents the northernmost place on Earth where cryospheric hazards, such as thaw slumps (TSs) and thermo-erosion gullies (TEGs) could take rapidly develop under influence of climatic variations. permafrost is specifically sensitive to occurring warming, therefore, a deeper understanding TSs TEGs necessary understand foresee dynamics behind local hazards' occurrences their global implications. We present latest update two polygonal inventories extent recorded across Nordenskiöld Land (Svalbard Archipelago), over surface approximately 4000 km2. This area was chosen because it most concentrated ice-free and, at same time, current human settlements are concentrated. were created through visual interpretation high-resolution aerial photographs part our ongoing effort toward creating pan-Arctic repository TEGs. Overall, we mapped 562 908 TEGs, from which separately generated susceptibility maps using generalised additive model (GAM) approach, assumption that manifest Land, according Bernoulli probability distribution. Once modelling results validated, patterns combined into first multi-hazard map area. available https://doi.org/10.1594/PANGAEA.945348 (Nicu et al., 2022a) https://doi.org/10.1594/PANGAEA.945395 2022b).