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.
Pinned
I’d like to call your attention to a Special Session Drew Rotheram-Clarke (GSC) and I are co-chairing at #ISPRS2026 Toronto:
👉 “Cooperation on Ground Motion Monitoring for Disaster Risk Reduction and Resilience.”
👉 www.isprs2026toronto.com/special-sess...
#DRR #InSAR
ISPRS 2026 Special Sessions
Discover ISPRS 2026 Special Sessions – expert-led, in-depth discussions on emerging topics in photogrammetry, remote sensing, and spatial information sciences.
www.isprs2026toronto.com
⏰ 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
Reposted by John Dehls
Full of leading scientific institutions, Trondheim could be a natural laboratory for world-class collective transport.
But progress remains constrained by car-centric policies that support electried, privately-owned cars. The thinking: Green cars = Green economic growth. A cosmetic solution.
October 15, 2025 at 6:58 AM
On this International Day for Disaster Risk Reduction, iddrr.undrr.org, I'd like to call attention once again to our idea of an InSAR-based global ground motion service, and our upcoming special session at ISPRS in Toronto. Abstract deadline is Nov 3. www.isprs2026toronto.com/special-sess...
October 13, 2025 at 2:08 PM
We had tremendous response to our initiative for a Global Ground Motion Service at #GP2025 this spring.
The technology is proven. The data exists. Let's go global.
x.com/NorwayInGene...
September 22, 2025 at 11:51 AM
From earlier this year at #GP2025: x.com/NorwayInGene...
September 22, 2025 at 11:46 AM
I’d like to call your attention to a Special Session Drew Rotheram-Clarke (GSC) and I are co-chairing at #ISPRS2026 Toronto:
👉 “Cooperation on Ground Motion Monitoring for Disaster Risk Reduction and Resilience.”
👉 www.isprs2026toronto.com/special-sess...
#DRR #InSAR
ISPRS 2026 Special Sessions
Discover ISPRS 2026 Special Sessions – expert-led, in-depth discussions on emerging topics in photogrammetry, remote sensing, and spatial information sciences.
www.isprs2026toronto.com
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
CLICKBAIT VOICE
We processed radar images...
You won't believe how much the ground moved!

HAIKU VOICE
Silent satellites.
Unwrapped phase reveals secrets.
The land shifts unseen.

CONSPIRACY VOICE
Supposed "scientists" claim ground deformation,
based on "interferograms" from secret radar images.
April 28, 2025 at 11:09 AM
Reposted by John Dehls
More than 10,000 scientists living, working or educated in Germany have already signed this appeal by @de.scientists4future.org to the members of the newly elected parliament to step up efforts for climate protection. Click here www.bayceer.uni-bayreuth.de/s4f/de/top/o... if you'd like to join.
March 18, 2025 at 8:25 AM
Finally a predicted launch date for #NISAR (May 20). It will be a relief to see this happen, given the current political and financial chaos. I just hope the ground segment funding remains in place. www.spacelaunchschedule.com/launch/gslv-...
PSLV NISAR (NASA-ISRO Synthetic Aperture Radar) GSLV Mk II Rocket Launch
The NASA-ISRO Synthetic Aperture Radar, or NISAR satellite, will use advanced radar imaging to map the elevation of Earth's land and ice masses 4 to 6 times a month at resolutions of 5 to 10 meters. I...
www.spacelaunchschedule.com
March 11, 2025 at 1:06 PM
I hope not! Let's stick to the Sun-synchronous, near-polar orbit plan 😅
February 15, 2025 at 8:29 AM