Nighttime Lights of Asia - Human Settlements, 1994-1995
- Type of resource
- Software, multimedia
- Boulder, CO, US : National Geophysical and Solar-Terrestrial Data Center, 2009
- Digital origin
- born digital
- GeoTIFF; Raster
- Map data
- Scale not given. ; Custom projection (E 43°30ʹ58ʺ--E 180°/N 56°27ʹ35ʺ--S 47°50ʹ40ʺ)
- Scale not given. ; EPSG::4326 E 43°30ʹ58ʺ--E 180°/N 56°27ʹ35ʺ--S 47°50ʹ40ʺ
Also available at
Item belongs to a collection
- Digital collection
- 19 digital items
This map shows light sources from human settlements in Asia as observed during 1994-1995. The Defense Meteorological Satellite Program (DMSP) Operational Linescan System (OLS) has a unique low-light imaging capability. developed for the detection of clouds using moonlight. In addition to moonlit clouds, the OLS also detects lights from human settlements, fires, gas flares, heavily lit fishing boats, lightning and the aurora. By analyzing the location, frequency, and appearance of lights observed in an image times series, it is possible to distinguish four primary types of lights present at the earth's surface: human settlements, fires, gas flares, and fishing boats. This layer is part of the Nighttime Lights of the World dataset, a satellite-based global inventory of human settlements, derived from nighttime data from the DMSP.
This dataset is intended for researchers, students, and policy makers, and the general public for reference and mapping purposes, and may be used for basic applications such as viewing, querying, and map output production, or to provide a basemap to support graphical overlays and analysis with other spatial data.
- Preferred citation
- National Geophysical and Solar-Terrestrial Data Center. (2003). Nighttime Lights of Asia - Human Settlements, 1994-1995. National Geophysical and Solar-Terrestrial Data Center. Available at: http://purl.stanford.edu/qw719hj9004.
- WGS84 Cartographics
- This layer is presented in the WGS84 coordinate system for web display purposes. Downloadable data are provided in native coordinate system or projection.
- Use and reproduction
- This item is in the public domain. There are no restrictions on use.