About the monitoring equipment
About the monitoring equipment
The monitoring systems consist of several sensors that were installed in and around the unstable slopes. Other measurements are carried out during field visits.
The various instruments and measurement methods are presented below.
GNSS-stations
Collaborative partners: Glaciorisk, Geoprevent, GEUS
GNSS stations are GPS devices that measure continuous surface movements. A local reference station is set up on stable ground, while the other stations are set up on the unstable slope to measure movements.
The advantage of this measurement is that it is very precise and operates independently of weather and lighting conditions. On the other hand, it is only a point measurement, and the velocity may vary across the unstable slope. Some of the installed stations record GPS signals for 10 minutes once every hour throughout the year, after which the movements are calculated. Other stations outside mobile coverage operate offline, and their data must be collected and analysed manually each year.
