John Dehls
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john.dehls.net
John Dehls
@john.dehls.net
Applying InSAR to landslides and other stuff at the Geological Survey of Norway (NGU). Opinions here are my own, not necessarily my employer's.
⏰ Deadline extended!
The #ISPRS2026 abstract submission deadline is now 17 November.

Check out our Special Session on Cooperation on Ground Motion Monitoring for DRR & Resilience 👇
www.isprs2026toronto.com/special-sess...

#InSAR #DisasterRiskReduction #ISPRS2026
November 4, 2025 at 8:15 AM
Groundwater & infrastructure: Subsidence in California or Spain’s Guadalentín Valley shows how over-extraction damages farmland, cities, and flood defences. InSAR makes the invisible visible.
September 22, 2025 at 11:39 AM
Mining & tailings dams: InSAR highlights deformation at sites like Uzbekistan. Failures can release toxins, devastate ecosystems, and take lives. Many risks are preventable if we act early.
September 22, 2025 at 11:39 AM
Glacial Lake Outburst Floods (GLOFs): InSAR detected precursory deformation at South Lhonak Lake before its catastrophic 2023 flood. These events cascade far downstream. (www.science.org/doi/10.1126/...)
September 22, 2025 at 11:39 AM
Here are three examples from San Juan Province, Argentina, highlighted by #InSAR. These slow-moving landslides affect large, high-relief mountain slopes and demonstrate the value of regional-scale monitoring for identifying potential geohazards in remote areas where on-the-ground access is limited.
September 22, 2025 at 11:39 AM
#InSAR is a proven technology for disaster risk reduction—and it scales. Examples like InSAR Norway insar.ngu.no and the European Ground Motion Service already provide billions of open measurements.
September 22, 2025 at 11:39 AM
Why are we organizing this? To push forward a new initiative: making life-saving ground motion data available worldwide, especially where it’s needed most.
September 22, 2025 at 11:39 AM
I guess I will be holding my breath until about 14:29 CET today. #NISAR #InSAR
July 30, 2025 at 9:05 AM
I hope not! Let's stick to the Sun-synchronous, near-polar orbit plan 😅
February 15, 2025 at 8:29 AM
Cool
February 2, 2024 at 3:39 PM