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Pléiades © CNES 2026 Distribution Airbus DS

Clear-sky Pléiades acquisition of the Rasuwa landslide source area

After many attempts, CNES’s Pléiades satellites finally captured a clear-sky view of the source area of the devastating flood in Nepal. The stereoscopic acquisition enables the generation of a high-resolution DEM and consequently a geometrically accurate orthorectified image. Although I’m not involved in the scientific analysis, I could not resist taking a closer look at […]

New clear-sky image of the Rasuwa rock-ice avalanche

On 08 Sep 2026, Sentinel-2 acquired a clear-sky image near the release area of the landslide which caused the catastrophic flood in Nepal. Using this image and a pre-event digital elevation model (Berthier 2026) we can analyze the upper part of the avalanche runout profile. The block of rock and ice was released near 5120 […]

Combien de temps met la surface à se réchauffer après le passage d’un nuage ?

Combien de temps met le fût du canon à se refroidir ? Fernand Raynaud => Cette citation vient du fameux sketch de Fernand Raynaud, elle est soi-disant tirée d’un manuel militaire à destination des soldats: Le sketch est un peu long, je vous rappelle la réponse : un certain temps. Nous avons étudié une question […]

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