The Pas de l’Ours landslide (1)

Avignonet/Harmalière landslides: hydrological borehole monitoring
Avignonet/Harmalière landslides: GPS, seismic and meteorological on-site sensors
Avignonet/Harmalière landslides: aerial view in 2010
Avignonet/Harmalière landslides: airborne LiDAR view of the landslide morphology in 2007
Avignonet/Harmalière landslides: main scarp in 1995
Avignonet/Harmalière landslides: main scarp in 2001 after a major reactivation
La Clapîère landslide: view of the unstable slope in 1995
La Clapîère landslide: view of the unstable slope in 2003
La Clapîère landslide: seismic on-site sensors and energy supply
La Clapîère landslide: geomorphological evolution of the unstable slope
Séchilienne landslide: upper part of the main scarp in 2016
Séchilienne landslide: geological discontinuities at the top of the main scarp in 2016
Séchilienne landslide: unstable block at the main scarp and the Romanche river at the bottom
Séchilienne landslide: hydrogeochemical monitoring along faults in a gallery crossing the landslide
Séchilienne landslide: surface displacement monitoring with a ground-based interferometric radar
Séchilienne landslide: topographic monitoring with a long-range terrestrial laser scanner
Séchilienne landslide: entrance of the monitoring gallery
Séchilienne landslide: surface displacement monitoring with a radar corner reflector on top of a borehole
Séchilienne landslide: mitigation work at the toe of the slope
Super-Sauze landslide: topographic monitoring of the main scarp with a long-range terrestrial scanner
Super-Sauze landslide: coupled terrestrial InSAR and laser scanning acquisitions for high frequency monitoring of surface displacements
Super-Sauze landslide: view of the accumulation zone in 2016
Super-Sauze landslide: view of the landslide and the Sauze catchment in 2016
Super-Sauze landslide: surface displacement monitoring with the low-cost GNSS system Géocube
Super-Sauze landslide: quantification of surface displacements by correlation of optical satellite imagery
Super-Sauze landslide: quantification of surface displacements by correlation of optical satellite imagery
Super-Sauze landslide: hydrological and slope stabilty modelling of the landslide behaviour

10 Mai 2017: OMIV was contacted several days ago to implement a geodetic and seismological network for operational monitoring of the Pas de l'Ours landslide at Aiguilles. The landslide is currently undergoing a major acceleration phase with displacements from several centimeters to decimeters per day depending on the area. An agreement between state agencies and OMIV (CNRS) is ongoing.

Aiguilles1

Aiguilles2

The following photos show different measurement campaingns carried out by the first group that intervened on the ground :

OMIV - EOST / IPGS
OMIV - IUEM / LGO
OMIV - OCA / GeoAzur
OMIV - OREME / GM
OMIV - OSUG / ISTerre
OMIV - THETA / CE

BD-MVT
BD-ONF-RTM

The data collection on the landslides are operated partly as a task of the OMIV Observatory, and partly through research projects of the partners. The situation of data collection is thus diverse per study site, and some data acquired through research projects may be discontinuous or not distributed through the website.
The distributed OMIV data are quality-controlled. Some interruptions of data records may happen because of sensor or telemetry dysfunctionning. Inaccuracies in the sensor data (because of instrument malfunctions or physical changes at the measurement site) have been corrected or are indicated in the datasheets. Higher resolution or more complete datasets may be available at some sites and may be acquired by contacting the scientists in charge.
Data users are cautioned to consider carefully the nature of the information before using it for science or for operational decisions that concern personal or public safety.