WI-GIM project

Wireless sensor network for Ground Instability Monitoring (Wi-GIM) project aims, in the frame of EU LIFE+ program, to develop an accurate, flexible and low-cost system for ground deformation monitoring. The Wi-GIM system is based on two types of wireless devices: the nodes (sensor node - SN) and base stations (Base Station - BS). The movement of ground is detected by acquiring the position of each of the SN that are organized in a wireless sensor network (WSN), whose position is determined by integrating two different technologies, specifically designed for the purpose. The data collected by technology 1 are processed with the data collected by technology 2 in order increase the accuracy of the system. The displacements of the landslide can be then displayed in different modes, including 3D. 


- International Consortium for Advanced Design (ICAD) - Coordinator
- Istituto Nazionale di Geofisica e Vulcanologia (INGV)
- Dipartimento di Scienze della Terra - Università di Firenze (DST-Unifi)
- Institut Cartogràfic i Geològic de Catalunya (ICGC)
- Regione Emilia-Romagna (RER)

Working group

A. Agostini (INGV), A. Fornaciai (INGV), M. Favalli (INGV), L. Nannipieri (INGV), E. Tataranni (INGV), P. Gaini (INGV), E. Carnevale (ICAD), L. Mucchi (ICAD), R. Schina (ICAD), F. Trippi (ICAD), J. Marturia (ICGC), M. Pizziolo (RER), G. Gigli (DST-UNIFI), G. Bertolini (RER)

Test sites description

The 2,5 km long Roncovetro landslide carves the southern slope Mt. Staffola from its top to the Tassobbio River where it causes the formation of a small lake. The slope is formed by sub ligurian clayey calcareous arenaceous flysch. The clay fraction is dominant from the mechanical point of view, causing the landslide to behave in its upper portion as a very active fluid viscous mudflow, with maximum velocities up to 10 m/day. The total volume of the landslide is about 3 M of cubic metres. The landslide reactivated completely in autumn 1993, it has since slowed during the summer months but has never completely stopped. The average speed of the upper lithosome is on the order of hectometres per year, while the lower moves a few decametres per year. A unique feature is the long and narrow channel, 30 to 40 m wide and deeply carved into the flysch bedrock, which links the depletion zone to the accumulation zone.
The Estació neighborhood in Sallent is located over the old potassium mine Enrique. This zone has affected by a subsidence process over more than twenty years. In year 2009 the subsidence increase hardly and culminated with the preventive evacuation of the neighborhood and progressive demolition of buildings and houses. Different studies done in the area have identified the mine exploitation as a cause of the general subsidence. But the presence of a karst cave located around 160m depth makes the subsidence more intense in that area.

Map Properties

406804.57906315341824666, 4628809.93834856431931257, 409100.80432873027166352, 4631130.79535119701176882
ASL = Airborne Laser Scanner
TSL = Terrestrial Laser Scanner
RTS = Robotic Total Station
MAV-SfM = Manned Aircraft Vehicle - Structure from Motion
UAV-SfM = Unmanned Aerial Vehicle - Structure from Motion
DEM = Digital Elevation Model


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A. Fornaciai