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Satellite images show what was left of the Anak Krakatoa volcano, which collapsed on December 22, 2018 in Indonesia, causing a tsunami that killed at least 430 people and left thousands homeless.
Poor weather conditions on the Sunda Strait, connecting the Java Sea to the Indian Ocean, had frustrated the work of the various satellites in the planet 's orbit to search for "rain". optical images.
But the team at Planet Labs, and Minisatellites exploits earth observation, managed to find windows in the clouds.
Images captured by its platforms Dove and SkySat reveal the magnitude of the collapse of the volcano, which allows to observe the evolution of the shape of the volcano. island after the natural disaster. ] What was once a crater at the top of a 340-meter high structure has completely opened onto a small bay.
Anak Krakatoa volcano lost more than two-thirds of the volume (150-170 million cubic meters).
Planet Labs, headquartered in San Francisco, operates one of the largest satellite constellations in the world.
Dove Minisatellites, operated by Planet Labs, capture soil details of more than 3 meters – which is considered average resolution; while SkySat platforms have a high resolution capability, capturing details greater than 72 cm.
SkySat was responsible for the photo at the top of this page, taken on Wednesday, January 2nd.
Satellite images obtained Immediately after the disaster, a radar spacecraft was the first sign of the collapse of the Anak Krakatoa volcano.
Radar instruments can "cross" the cloud, but offer a very different view of optical satellites. the specific ability to interpret.
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