John Dehls

@handle.invalid

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Applying InSAR to landslides and other stuff at the Geological Survey of Norway (NGU). Opinions here are my own, not necessarily my employer's.

Image showing the names and faces of the convenors of Session 2.2, Toward continental and global InSAR ground motion services for landslide risk reduction.
Image showing the names and faces of the convenors of Session 2.1, Advances in EO-based landslide detection and monitoring.
Poster showing that the 7th World Landslide Forum abstract submission deadline has been extended to April 30, 2026.
Fig. 9. Conceptual and geological framework relevant to slope deformation at the Leo Pargil Dome. (a) Conceptual scheme illustrating gravity-driven zones of extension and compression on a steep ridge, after Savage and Varnes (1987). (b) Simplified geological cross-section and block diagram of the Leo Pargil Dome, showing the regional structural architecture and extensional setting, after Thiede et al. (2006). (c) Northwest-oriented geological cross-section across the western flank of the Leo Pargil Dome at the latitude of Nako village, highlighting major lithological units and extensional structures, after Langille et al. (2012).
European Ground Motion Service map of the Guadalentín Valley, Spain. InSAR deformation points show a gradient from green (stable) to red (strong subsidence), revealing land sinking caused by intensive groundwater extraction in agricultural areas.
Satellite image of a large tailings dam in Uzbekistan. InSAR deformation data shows a red band around the dam walls, indicating significant ground movement.
Satellite view of South Lhonak Lake in the Himalayas, overlaid with InSAR deformation data. Red and orange zones along the moraine show precursory ground movement before the catastrophic 2023 glacial lake outburst flood.
Satellite images of steep mountain slopes in Argentina. Top row shows natural-colour terrain. Bottom row overlays InSAR ground deformation data, with red areas marking active slope movement, highlighting large, slow-moving landslides across the region.
Image from InSAR Norway showing a fjord with mountainsides. The mountainsides are coloured red where unstable slopes are moving.
Partial globe showing coverage by the European Ground Motion Service, showing dense deformation measurements. Highlights how some regions have access to life-saving data, while most of the world does not.
NISAR launch schedule, Launch at 14:10 CET, separation at 14:28.