Permafrost temperature and active layer thickness
Permafrost temperatures are measured in boreholes of 20–100 m depth. The annual active layer thickness (ALT) is interpolated from temperature measurements.
The data provided on this portal can be subject to errors and inaccuracies (such as gaps, measurement instabilities, thermistor drift, physical disturbances, changes in measurement setup) that have only partly been filtered out. We strongly advice to perform data quality checks when using the data and to contact the PERMOS Office as well as the responsible principal investigator(s)!