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  2. Elevation - Wikipedia

    en.wikipedia.org/wiki/Elevation

    Heightmap of Earth's surface (including water and ice) in equirectangular projection, normalized as 8-bit grayscale, where lighter values indicate higher elevation. A topographical map is the main type of map used to depict elevation, often through contour lines.

  3. Topographic map - Wikipedia

    en.wikipedia.org/wiki/Topographic_map

    In modern mapping, a topographic map or topographic sheet is a type of map characterized by large-scale detail and quantitative representation of relief features, usually using contour lines (connecting points of equal elevation), but historically using a variety of methods.

  4. List of elevation extremes by country - Wikipedia

    en.wikipedia.org/wiki/List_of_elevation_extremes...

    Map of countries coloured according to their highest point. The following sortable table lists land surface elevation extremes by country or dependent territory. Topographic elevation is the vertical distance above the reference geoid, a mathematical model of the Earth's sea level as an equipotential gravitational surface.

  5. Earth - Wikipedia

    en.wikipedia.org/wiki/Earth

    Earth's western hemisphere showing topography relative to Earth's center instead of to mean sea level, as in common topographic maps Earth has a rounded shape , through hydrostatic equilibrium , [ 85 ] with an average diameter of 12,742 kilometres (7,918 mi), making it the fifth largest planetary sized and largest terrestrial object of the ...

  6. Shuttle Radar Topography Mission - Wikipedia

    en.wikipedia.org/wiki/Shuttle_Radar_Topography...

    The Shuttle Radar Topography Mission (SRTM) is an international research effort that obtained digital elevation models on a near-global scale from 56°S to 60°N, [2]: 4820 to generate the most complete high-resolution digital topographic database of Earth prior to the release of the ASTER GDEM in 2009.

  7. GTOPO30 - Wikipedia

    en.wikipedia.org/wiki/GTOPO30

    This map is derived from GTOPO30 data that describes the elevation of Earth's terrain at intervals of 30 arcseconds (approximately 1 km). It uses hypsometric tints instead of contour lines to indicate elevation.

  8. 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.

  9. Topography - Wikipedia

    en.wikipedia.org/wiki/Topography

    Relief map: Sierra Nevada Mountains, Spain 3D rendering of a DEM used for the topography of Mars. The digital elevation model (DEM) is a raster-based digital dataset of the topography (hypsometry and/or bathymetry) of all or part of the Earth (or a telluric planet).

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