File:Composite map of the world 2012.jpg

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Summary[edit]

Description
English: This new image of the Earth at night is a composite assembled from data acquired by the Suomi National Polar-orbiting Partnership (Suomi NPP) satellite over nine days in April 2012 and thirteen days in October 2012. It took 312 orbits and 2.5 terabytes of data to get a clear shot of every parcel of Earth’s land surface and islands. The nighttime view of Earth was made possible by the “day-night band” of the Visible Infrared Imaging Radiometer Suite. VIIRS detects light in a range of wavelengths from green to near-infrared and uses filtering techniques to observe dim signals such as gas flares, auroras, wildfires, city lights, and reflected moonlight. In this case, auroras, fires, and other stray light have been removed to emphasize the city lights.
Date
Source http://earthobservatory.nasa.gov/NaturalHazards/view.php?id=79765
Author NASA Earth Observatory/NOAA NGDC
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Licensing[edit]

Public domain
This file is in the public domain in the United States because it was solely created by NASA. NASA copyright policy states that "NASA material is not protected by copyright unless noted". (See Template:PD-USGov, NASA copyright policy page or JPL Image Use Policy.)
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Date/TimeThumbnailDimensionsUserComment
current10:52, 6 December 2012Thumbnail for version as of 10:52, 6 December 20123,600 × 1,800 (776 KB)Stas1995 (talk | contribs)User created page with UploadWizard
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