A new satellite provides spectacular videos of lightning over a huge part of the Earth. - by andytomaswick
The imager itself is made up of four different cameras. Combined, they cover Europe, Africa, the Middle East, and parts of South America, all from an altitude of around 36,000 km. Simonetta Cheli, ESA’s Direct of Earth Observation Programmes, points out that that covers over 84% of the Earth’s disc, at least on the side it’s facing. Each camera can also capture 1000 images a second, allowing them to see even the briefest of lightning flashes.
That would also result in an overwhelming amount of data, so MTG does much of the image processing locally and only sends the relevant bits back to Earth. The algorithm that does so, along with the imager itself, was developed by Leonardo Space, a company based in Italy specializing in developing satellite instruments.
Magic truly happens when the MTG combines data from the Lightning image with the Flexible Combined Imager. With those two powerful tools, it can create some truly dramatic footage. But besides just being nice to look at, the data can also be used for both scientific and meteorological purposes. It is now much easier to track storms and warn regions that might be threatened by severe weather.
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