), MPI Yakutsk (Melnikov Permafrost Institute), and NEFU (North-Eastern Federal University Yakutsk). Duration: Four Weeks. Goals: Exposed to subaquatic conditions, permafrost thaw occurs exponentially [...] Melnikov Permafrost Institute Yakutsk and ERC PETA-CARB in the eastern Lena Delta (Sobo Sise Island) and on Bykovsky Peninsula. Transport: Helicopter. Duration: Three Weeks. Goals: Sampling of permafrost soils [...] reconstructions, geodetic surveys of subsidence caused by permafrost thaw, bathymetric surveys, installation of temperature sensors in permafrost boreholes and lakes. PETA-CARB participants: Guido Grosse