File:India at night from space during Diwali 2012.jpg
Original file (4,218 × 4,218 pixels, file size: 4.53 MB, MIME type: image/jpeg)
Captions
Summary
[edit]DescriptionIndia at night from space during Diwali 2012.jpg |
English: On 12 November 2012, the Visible Infrared Imaging Radiometer Suite (VIIRS) on the Suomi NPP satellite recorded this view of the Indian subcontinent at night during the festival of Diwali. The picture is based on data collected by the VIIRS "day-night band," which detects light in a range of wavelengths from green to near-infrared. The picture has been brightened to make the city lights easier to distinguish.
Each autumn, Hindus around the world light lamps, candles, and firecrackers as part of a five-day festival known as Diwali. The celebration, which has roots as a harvest festival, usually falls between mid-October and mid-November. In 2012, it began on 11 November. Most of the bright areas in the picture are cities and towns in India, the country with the world's largest Hindu population. India is home to more than 1.2 billion people and has 30 cities with populations over 1 million. (For comparison, China has 62 cities with more than 1 million residents and the United States has 9). Cities in Bangladesh, Nepal, and Pakistan are also visible near the edges of the picture. A picture that claims to show the region lit for Diwali has been circulating on social media websites and the Internet in recent years. In fact, it does not show what is claimed. That picture, based on data from the Operational Linescan System flown on U.S. Defense Meteorological Satellite Program (DMSP) satellites, is a colour-composite created in 2003 by NOAA scientist Chris Elvidge to highlight population growth over time. In that picture, white areas show city lights that were visible prior to 1992, while blue, green, and red shades indicate city lights that became visible in 1992, 1998, and 2003 respectively. In reality, any extra light produced during Diwali is so subtle that it is likely imperceptible when observed from space. |
Date | |
Source | Earth Observatory |
Author | NASA/Suomi NPP satellite |
Licensing
[edit]Public domainPublic domainfalsefalse |
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.) | ||
Warnings:
|
File history
Click on a date/time to view the file as it appeared at that time.
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 16:41, 9 November 2013 | 4,218 × 4,218 (4.53 MB) | Spideog (talk | contribs) | User created page with UploadWizard |
You cannot overwrite this file.
File usage on Commons
The following page uses this file:
File usage on other wikis
The following other wikis use this file:
- Usage on en.wikiquote.org
- Usage on ta.wikipedia.org
Metadata
This file contains additional information such as Exif metadata which may have been added by the digital camera, scanner, or software program used to create or digitize it. If the file has been modified from its original state, some details such as the timestamp may not fully reflect those of the original file. The timestamp is only as accurate as the clock in the camera, and it may be completely wrong.
Image title |
|
---|---|
Width | 6,000 px |
Height | 6,000 px |
Compression scheme | LZW |
Pixel composition | Black and white (Black is 0) |
Orientation | Normal |
Number of components | 1 |
Horizontal resolution | 100 dpi |
Vertical resolution | 100 dpi |
Data arrangement | chunky format |
Software used | Adobe Photoshop CS6 (Macintosh) |
File change date and time | 12:10, 14 November 2012 |
Color space | Uncalibrated |
Date and time of digitizing | 10:57, 13 November 2012 |
Date metadata was last modified | 07:10, 14 November 2012 |
Unique ID of original document | xmp.did:18512C73582068118083DB9131AD0A62 |