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  2. File:Elevation.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Elevation.pdf

    You are free: to share – to copy, distribute and transmit the work; to remix – to adapt the work; Under the following conditions: attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made.

  3. Wikipedia : Graphics Lab/Resources/Draw topological maps

    en.wikipedia.org/wiki/Wikipedia:Graphics_Lab/...

    Download any suitable icons from Wikipedia's Route diagram templates such as the ones at Wikipedia:Route diagram template/Catalog of pictograms/others, or Wikimedia Commons. In Inkscape, click on File-> Import (CTRL+I) and select the downloaded files. Resize the icons 24. Resize the icons

  4. Topographic map - Wikipedia

    en.wikipedia.org/wiki/Topographic_map

    1913 saw the beginning of the International Map of the World initiative, which set out to map all of Earth's significant land areas at a scale of 1:1 million, on about one thousand sheets, each covering four degrees latitude by six or more degrees longitude. Excluding borders, each sheet was 44 cm high and (depending on latitude) up to 66 cm wide.

  5. GIS file format - Wikipedia

    en.wikipedia.org/wiki/GIS_file_format

    GTOPO30 – Large complete Earth elevation model at 30 arc seconds, delivered in the USGS DEM format; DTED – National Geospatial-Intelligence Agency (NGA)'s Digital Terrain Elevation Data, the military standard for elevation data; World file – Georeferencing a raster image file (e.g. JPEG, BMP)

  6. Template:Earth Labelled Map - Wikipedia

    en.wikipedia.org/wiki/Template:Earth_Labelled_Map

    This template is used on many pages and changes may be widely noticed. Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage . Consider discussing changes on the talk page before implementing them.

  7. Terrain cartography - Wikipedia

    en.wikipedia.org/wiki/Terrain_cartography

    Terrain cartography or relief mapping is the depiction of the shape of the surface of the Earth on a map, using one or more of several techniques that have been developed. Terrain or relief is an essential aspect of physical geography , and as such its portrayal presents a central problem in cartographic design , and more recently geographic ...

  8. List of elevation extremes by country - Wikipedia

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

    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.

  9. GTOPO30 - Wikipedia

    en.wikipedia.org/wiki/GTOPO30

    GTOPO30 is a digital elevation model for the world, developed by United States Geological Survey (USGS). It has a 30-arc second resolution (approximately 1 km), [1] and is split into 33 tiles stored in the USGS DEM file format. According to DTED and USGS DEM the absolute vertical accuracy of GTOP30 varies from ±30 meters. [2]