The elevation of a geographic location is its height above or below a
fixed reference point, most commonly a reference geoid, a mathematical
model of the Earth's sea level as an equipotential gravitational
surface (see Geodetic system, vertical datum). The term "elevation" is
mainly used when referring to points on the Earth's surface, while
"altitude" or "geopotential height" is used for points above the
surface, such as an aircraft in flight or a spacecraft in orbit, and
"depth" is used for points below the surface.
Part of a topographic map of
GIS or geographic information system is a computer system that allows for visualizing, manipulating, capturing, and storage of data with associated attributes. GIS offers better understanding of patterns and relationships of the landscape at different scales. Tools inside the GIS allow for manipulation of data for spatial analysis or cartography.
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 use of contour lines. In a
Each tile is available at a resolution of 1800 × 1800 pixels (approximate file size 1 MB, 60 pixels = 1 degree, 1 pixel = 1 minute)
Processed LiDAR point cloud showing not only elevation, but heights of features as well.
It has been suggested that this section be split out into another article titled Hypsography. (Discuss) (July 2014)
Temperature In the troposphere, temperatures decrease with altitude. This lapse rate is approximately 6.5 °C/km. See also
Sea Level Datum of 1929
List of European cities by elevation List of highest mountains List of highest towns by country Normaal Amsterdams Peil Normalhöhennull Physical geography Table of the highest major summits of North America Topographic isolation Topographic prominence Topography Vertical pressure variation
^ Survey, U.S. Geological. "The National Map: Elevation".
nationalmap.gov. Retrieved 2017-02-24.
Look up elevation in Wiktionary, the free dictionary.
U.S. National Geodetic Survey website
United States Geological Survey website Geographical Survey Institute Downloadable ETOPO2 Raw Data Database (2 minute grid) Downloadable ETOPO5 Raw Data Database (5 minute grid) Find the elev