Volcano

Evaluating ERA5 wind direction with Copahue Volcano plume

Copahue is an active volcano in the Andes on the Chile-Argentina border. It erupted in 2016 and a plume of smoke was visible in many Sentinel-2 images during that period. Looking at these pictures I thought it would be fun to use that plume as a giant anemometer to evaluate climate model data. I extracted […]

Anak Krakatau before and after the December 2018 eruption

Anak Krakatau (Indonesia) erupted on 22 December 2018. During the eruption the collapse of the volcano summit triggered a tsunami in Sunda Strait causing a death toll of 437. The first post-event clear-sky image was finally acquired by Sentinel-2 today on 13 Jan 2019 (after 10 cloudy acquisitions). Here is an image comparison of the […]

Hot N Cold: Villarrica Volcano

Villarrica volcano is one of the most active volcanoes in the Chilean Andes. A colleague of mine (Esteban Alonso) told me that last week he went ski touring up there and when he reached the summit he could see the bubbling lava in the bottom of the crater, and could even feel its heat…

The recent eruptions of the Piton de la Fournaise, as seen by SPOT5 (Take5)

=> Had we known, we would have framed the images differently ! On  Reunion Island, in the Indian Ocean, the Piton de la Fournaise volcano had a very frantic summer (well, it’s winter there). The volcano erupted 3 three times since May, and we missed a little part of the first eruption. Reunion Island is a little […]

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