P E R M O S S i t e s
The monitoring network PERMOS operates two types of sites: temperature sites, where thermal conditions of the subsurface are monitored, and kinematics sites, where permafrost creep is observed.
- KML-file with all PERMOS measurement locations.
(I) Temperature Sites
- Subsurface temperatures are recorded in boreholes. The network currently contains 14 borehole sites with one or more boreholes and with depths ranging from 15 to 100 m. Temperatures are measured with thermistor chains and continuously recorded by automatic logging with at least daily resolution.
- Ground surface temperatures
are measured at all PERMOS Sites at around 250 locations with typical topographic setting and surface cover type to capture the spatial variability around the borehole sites and on rock glaciers.
- Geolelectric measurements are performed at 10 of the borehole sites. The fixed installed arrays for electrical resistivity tomography (ERT) provide information on changes in ice and unfrozen water content in the subsurface.
- In addition, air temperature and the timing and qualitative development of the snow cover are observed at several borehole sites. At two sites, the bottom temperature of the snow cover (BTS) is measured every second year.