strongly. 2.7 CryoGrid 3 Xice – a simple representation of permafrost thaw processes in ice-rich permafrost Excess ground-ice melt: in many permafrost landscapes, ground layers super-saturated with ice occur [...] n CryoGrid 3 Xice -- a simple representation of permafrost thaw processes in ice-rich permafrost Study area The Lena River delta The Samoylov permafrost observatory CryoGrid 3 runs for the Lena River delta [...] phenomena in fu- ture projections of permafrost thaw and subsequent climatic- triggered feedbacks. In this study, we present a new land- surface scheme designed for permafrost applications, Cryo- Grid 3, which