installation of data loggers (in the previously planned sites and depths) to analyze the presence of permafrost and the characteristics and processes of the active layer from 4200 m to 6893 m asl in the Puna de Atacama, from Laguna Negro Francisco to the Ojos del Salado summit
sediment sampling at monitoring sites from all measurement depths
investigation of abandoned glacier valleys, ground ice distribution and melting processes
investigation of the structure and location of megaripples
