This means one can view the Grand Canyon or Mount Everest in three dimensions, instead of 2D like other areas. Google Earth uses digital elevation model (DEM) data collected by NASA's Shuttle Radar Topography Mission (SRTM). Viewing this from an oblique angle, there is perspective in the sense that objects which are horizontally far away are seen smaller, but of course it is like viewing a large photograph, not quite like a 3D view.įor other parts of the surface of the Earth 3D images of terrain and buildings are available. Google Earth allows users to search for addresses for some countries, enter coordinates, or simply use the mouse to browse to a location.įor large parts of the surface of the Earth only 2D images are available, from almost vertical photography. Melbourne, Victoria Las Vegas, Nevada and Cambridge, Cambridgeshire include examples of the highest resolution, at 15 cm (6 inches). The degree of resolution available is based somewhat on the points of interest and popularity, but most land (except for some islands) is covered in at least 15 meters of resolution. Google Earth displays satellite images of varying resolution of the Earth's surface, allowing users to visually see things like cities and houses looking perpendicularly down or at an oblique angle, with perspective (see also bird's eye view).
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