miércoles, 13 de noviembre de 2013

NASA: India - Best of the blog Archives: India During Diwali - by Adam Voiland - 11.13.13


Best of the Archives: India During Diwali

                                               November 6th, 2013 by Adam Voiland
Hindus are celebrating Diwali this week. That means cities and towns around the world—but particularly in South Asia—are ablaze with lamps, candles, and firecrackers. It’s also become a tradition (of sorts) to share a colorful image via social media that was supposedly taken by a satellite during Diwali. If that image turns up on your feed, be skeptical.
As we pointed out last year, that image is a composite created and colored back in 2003 by NOAA scientists to illustrate population growth over time. In reality, India during Diwali looks something more like the image you see at the bottom of this page. The fact is that any extra light produced during Diwali would be so subtle that it would be extremely difficult to detect from space.
The Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP satellite collected the data that was used to make the image below on November 12, 2012.  Read more about the fake Diwali image from Earthsky or USA Today. 
India_Diwali_11-12-2012-e1353258057497







NASA: India - Best of the blog Archives: India During Diwali - by Adam Voiland - 11.13.13






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