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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 […]

How long is the cooling effect of a cloud shadow ?

How long does it take for the cannon barrel to cool down after firing a shell ? Fernand Raynaud => This quote is from a famous old French funny sketch by Fernand Raynaud, which was based on a question in a French manual for soldiers: the sketch is rather long, so I’ll give you the […]

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