Permafrost is widespread in the Northern Hemisphere and is thawing due to climate warming, impacting energy and mass transfers. Small streams emerge alongside lakes when ice in the ground melts away, potentially accelerating thawing and biogeochemical activity in a positive feedback cycle. This study provides a comprehensive dataset on these little-studied streams, including thermally and hydrologically important variables essential for improving numerical models.

This study explores the use of lightweight plastic particles to reproduce cryo-induced terrestrial geomorphologic features at the laboratory scale within an experiment on permafrost and active-layer thawing. We show that, due to their low density and peculiar hydrodynamic parameters, these lightweight particles, originally designed for river sediment deposition and erosion, are suitable for reproducing cryo-induced 3D geomorphological features found in terrestrial retrogressive thaw slumps.