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  2. Historical geographic information system - Wikipedia

    en.wikipedia.org/wiki/Historical_geographic...

    An especially prominent method is the digitization and georeferencing of historical maps. Old maps may contain valuable information about the past. By adding coordinates to such maps, they may be added as a feature layer to modern GIS data. This facilitates comparison of different map layers showing the geography at different times.

  3. Google Earth - Wikipedia

    en.wikipedia.org/wiki/Google_Earth

    Google Earth is a web and computer program that renders a 3D representation of Earth based primarily on satellite imagery.The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles.

  4. Public Land Survey System - Wikipedia

    en.wikipedia.org/wiki/Public_Land_Survey_System

    This 1988 BLM map depicts the principal meridians and baselines used for surveying states (colored) in the Public Land Survey System.. The Public Land Survey System (PLSS) is the surveying method developed and used in the United States to plat, or divide, real property for sale and settling.

  5. 35 Awesome Maps That Show The World Through History ... - AOL

    www.aol.com/70-maps-might-change-way-061303748.html

    Image credits: tomaspueyo Even though maps focused on territory lines show exactly where one country ends and another begins, when it comes to cultural issues or such things as language and faith ...

  6. History of cartography - Wikipedia

    en.wikipedia.org/wiki/History_of_cartography

    At the present time, computer-based software is dominated by big companies that offer their services to a worldwide public, such as Google Maps, Apple Maps, Bing Maps, National Geographic Maps, ESRI Geographic Information System (GIS), CartoDB, Mapbox, Waze, etc. Many other state-based, regional and smaller initiatives, and companies offer ...

  7. Space-oblique Mercator projection - Wikipedia

    en.wikipedia.org/wiki/Space-oblique_Mercator...

    Space-oblique Mercator projection. Space-oblique Mercator projection is a map projection devised in the 1970s for preparing maps from Earth-survey satellite data. It is a generalization of the oblique Mercator projection that incorporates the time evolution of a given satellite ground track to optimize its representation on the map.

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