Multitemp 2015

Multitemp

=> Although there is no link between this blog and the Multitemp 2015 symposium,I am happy to support this international symposium dedicated to the applications and techniques to use the remote sensing image time series. (And maybe they will not sue us for using a similar name for this blog…). That’s the reason why I accepted to chair a session about SPOT4 (Take5) and the preparation of Sentinel-2 (and not just because Annecy is a very nice town in the French Alps). Many of you produced nice results from SPOT4 (Take5),data, or submitted  a site at the SPOT5 (Take5). call for sites.Your extended abstracts are awaited on the symposium site  before February the 27th..

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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 […]

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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