Nasa Visible Earth
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As a Magnetic Resonance Imaging (MRI) scan examines the within of a human body, a radar examines the inside of a cloud. A radar sends a pulse of power into the atmosphere and if any precipitation is intercepted by the energy, a part of the power is scattered again to the radar. These returned signals, called “radar echoes”, are assembled to supply radar photographs. Geostationary satellites can see each other and so can transmit information from one to another. This satellite orbits the Earth at approximately 36,000 kilometres above the Earths floor and appears to be stationary over a specific point.
Such features are not as simply observed in gray scale photographs latitudes (the very best cloud tops are sometimes related to the strongest thunderstorms). These photographs have been extracted from the identical information, nonetheless color enhancement uses colours ranging from purple to red to make certain options stand out. Satellite images may be easily used to determine tropical storms by spotting the traits swirls of cloud surrounding the clear central eye of the storm.
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