File:Composite map of the world 2012.jpg
Jump to navigation Jump to search
Original file (3,600 × 1,800 pixels, file size: 776 KB, MIME type: image/jpeg)
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.
|Author||NASA Earth Observatory/NOAA NGDC|
Click on a date/time to view the file as it appeared at that time.
|current||10:52, 6 December 2012||3,600 × 1,800 (776 KB)||Stas1995||User created page with UploadWizard|
- You cannot overwrite this file.