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Global land and undersea elevation ... World map showing daylight around 13:00 UTC, April 2nd, 2005. ...
Global indexing system first developed for International Map of the World. Topographic surveys were prepared by the military to assist in planning for battle and for defensive emplacements (thus the name and history of the United Kingdom's Ordnance Survey). As such, elevation information was of vital importance. [11]
Name Country Depth Notes / references 1: Dead Sea: Jordan – West Bank – Israel: −430 m (−1,411 ft) lowest land in Asia and the world in Jordan valley, Israel – West Bank –
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.
A topographical map is the main type of map used to depict elevation, often through contour lines. In a Geographic Information System (GIS), digital elevation models (DEM) are commonly used to represent the surface (topography) of a place, through a raster (grid) dataset of elevations.
This is a list of countries and territories by their average elevation above sea level based on the data published by Central Intelligence Agency, [1] unless another source is cited. The list includes sovereign states and self-governing dependent territories based upon the ISO standard ISO 3166-1.