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Even small towns and forest fires, clearly reflects the new high-resolution images of the Earth's night side, which NASA released and pieced together into a video. By Thomas AE Andersen December 8, 2012 at. 08:00
Lighted ships on the Nile and forest fires in the Australian bush are some of the fascinating details, one can observe homier luminaire that large and small dots of light on the most detailed images of the Earth at night.
The high-resolution images taken with an instrument on NASA and the U.S. NOAA weather organization new NPP satellite homier luminaire at night when there are no clouds, so that light from human activity are disturbed. The many cloudless images are then put together into a giant mosaic homier luminaire in a video showing nightlight anywhere on Earth.
There are many satellites homier luminaire that can photograph the Earth during the day when our planet is illuminated by the Sun. But with a new instrument homier luminaire on NPP satellite (Suomi National Polar-orbiting Partnership), which was launched last year, it is now possible to study the Earth at night in high resolution. Each pixel is analyzed
The new instrument, homier luminaire Viirs (Visible homier luminaire Infrared Imaging Radiometer Suite), is so sensitive that it can detect light from a single ship at sea. Its resolution is much better than the pictures so far taken with instruments for observations in low lighting on board the U.S. defense meteorological satellites.
Unlike conventional cameras that captures an image in a single exposure, form Viirs instrument an image by repeatedly homier luminaire scanning an area and dissolve it in millions of pixels. After analyzing each pixel; if it is very light, it is prevented from becoming saturated, and if the dark, the signal is amplified.
Photos of this type were notably used to follow Hurricane Sandy that hit the U.S. East Coast October 29 this year. Images can include used to tell the difference between fog and rain, which is difficult to infrared or thermal imaging. At the same time, they can be used to follow the cloud formations, often beginning at night. Documentation
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