The narrow definition of topography is specific to the arrangement of landforms.īut in a broader sense, it incorporates natural and artificial features. Nine out of ten topographic maps show contour lines, which are just lines of equal elevation. In GIS, we use digital elevation models for the terrain. And it’s also closely tied to geography and mapping systems like GIS.Įlevation is the distinguishing factor for topographic maps.
It’s closely related to geodesy and surveying which are concerned with accurately measuring the land surface. The origin of topography comes from “topo” for “place” and “graphia” for “writing”. For example, topography refers to mountains, valleys, rivers, or craters on the surface. In particular, it lays the underlying foundation of a landscape. Topography is the study of the land surface.
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