Terrain
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Present-day Yird altimetry an bathymetry. Data frae the Naitional Geopheesical Data Center's TerrainBase Digital Terrain Model.
Terrain, or land relief, is the vertical an horizontal dimension o land surface. When relief is describit unnerwatter, the term bathymetry is uised.
Terrain is uised as a general term in pheesical geografie, referrin tae the lay o the land. This is uisually expressed in terms o the elevation, slope, an orientation o terrain featurs. Terrain affects surface watter flow an distribution. Ower a lairge aurie, it can affect wather an climate patterns.