ABSTRACT
This chapter briefly presents some periglacial indicator landforms which are being studied in the North and South of Sweden. They are, first, ice-wedge casts and frost crack polygons, and second, nivation hollows and other effects of nivation processes. The chapter discusses large polygons as surface indicators of permafrost in Northern Sweden. Palsa bogs are regarded as indicators of rather weak permafrost, requiring a mean annual temperature of -1°C or colder to develop and persist. In high latitudes, solifluction (gelifluction) is probably more important than in mid-latitude mountains. Its role in the nivation process can be observed in front of melting snow-patches on many sites in Lappland and other Arctic areas such as Iceland. The fossil indicators of strong wind action in South Sweden — wind-polished stones and bedrock, wind flutings — are much better developed than the similar forms in the coldest parts of Lappland.
