File:World Night Lights Map.jpg
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This file has been superseded by Earthlights dmsp.jpg. It is recommended to use the other file. Please note that deleting superseded images requires consent.
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DescriptionWorld Night Lights Map.jpg |
English: The image shows the urbanization of the world's cities through the use of the DMSP satellite system. This image of Earth's city lights was created with data from the Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS). Originally designed to view clouds by moonlight, the OLS is also used to map the locations of permanent lights on the Earth's surface. The brightest areas of the Earth are the most urbanized, but not necessarily the most populated. (Compare western Europe with China and India.) Cities tend to grow along coastlines and transportation networks. The United States interstate highway system appears as a lattice connecting the brighter dots of city centers. In Russia, the Trans-Siberian railroad is a thin line stretching from Moscow through the center of Asia to Vladivostok. The Nile River, from the Aswan Dam to the Mediterranean Sea, is another bright thread through an otherwise dark region. Even more than 100 years after the invention of the electric light, some regions remain thinly populated and unlit. Antarctica is entirely dark. The interior jungles of Africa and South America are mostly dark, but lights are beginning to appear there. Deserts in Africa, Arabia, Australia, Mongolia, and the United States are poorly lit as well (except along the coast), along with the boreal forests of Canada and Russia, and the great mountains of the Himalaya. |
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Date | |||
Source | Imagery by NASA and/or the US Geological Survey. Processed by Terra Prints Inc. | ||
Author |
Data courtesy Marc Imhoff of NASA GSFC and Christopher Elvidge of NOAA NGDC. |
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Own work, share alike, attribution required (Creative Commons CC-BY-SA-2.5)
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current | 20:09, 22 February 2009 | 917 × 380 (33 KB) | Cropbot (talk | contribs) | upload cropped version, operated by User:Finavon. Summary: caption/border cropped | |
03:37, 22 October 2006 | 1,000 × 500 (46 KB) | Rolandc73 (talk | contribs) | {{Information |Description=Imagery by NASA and/or the US Geological Survey. Processed by Terra Prints Inc. The image shows the urbanization of the world's cities through the use of the DMSP satellite system. This image of Earth's city lights was created w |
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