United States City Lights Stock Image
by drmglc
Description
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. Cities tend to grow along coastlines and transportation networks. Even without the underlying map, the outlines of many continents would still be visible. The United States interstate highway system appears as a lattice connecting the brighter dots of city centers.Even more than 100 years after the invention of the electric light, some regions remain thinly populated and unlit. The Earth Observatory describe how N.A.S.A. scientists use city light data to map urbanization. N.A.S.A. Public Image Edited.
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Keywords
- background
- earth
- lighting
- city
- environment
- energy
- clean energy
- protect the environment
- light
- lights
- night
- night
- space
- landscape
- respect
- respect the planet
- planet
- planet earth
- viewed from above
- aerial view
- view space telescope satellite defense
- weather satellite
- meteorology
- defense
- ols
- ols
- dmsp
- dmsp
- usa
- usa
- united states
- america
- america lights
- usa lights
- usa urban area
- america urban area