A topographic map is a type of map characterized by large-scale detail and quantitative representation of relief, usually using contour lines in modern mapping, but historically using a variety of methods. Traditional definitions require a topographic map to show both natural and man-made features. A topographic map is typically published as a map series, made up of two or more map sheets that combine to form the whole map. A contour line is a combination of two line segments that connect but do not intersect; these represent elevation on a topographic map.
The Canadian Centre for Topographic Information provides this definition:A topographic map is a detailed and accurate graphic representation of cultural and natural features on the ground.
Other authors define topographic maps by contrasting them with another type of map; they are distinguished from smaller-scale "chorographic maps" that cover large regions, "planimetric maps" that do not show elevations, and "thematic maps" that focus on specific topics.
However, in the vernacular and day to day world, the representation of relief (contours) is popularly held to define the genre, such that even small-scale maps showing relief are commonly (and erroneously, in the technical sense) called "topographic".
The study or discipline of topography, while interested in relief, is actually a much broader field of study which takes into account all natural and man made features of terrain.
Other articles related to "maps, topographic map, map, topographic maps, topographic":
... The organization of sensory maps in the cortex reflects that of the corresponding sensing organ, in what is known as a topographic map ... This topographic map is called a retinotopic map ... In the same way, there exists a tonotopic map in the primary auditory cortex and a somatotopic map in the primary sensory cortex ...
... a civilian Federal agency, produces several national series of topographic maps which vary in scale and extent, with some wide gaps in coverage, notably the complete absence of 150,000 scale ... The largest (both in terms of scale and quantity) and best-known topographic series is the 7.5-minute or 124,000 quadrangle. 125,000 or 150,000 large scale topo map ...
... Scale 1100000 topographic map ... Scale 1120000 topographic map ... Scale 1250000 topographic map ...
... illustrations and ice-cover distribution), 1100000 scale topographic map, Antarctic Place-names Commission of Bulgaria, Sofia, 2005 ... Scale 1120000 topographic map ... Scale 1250000 topographic map ...
... A bathymetric chart is the submerged equivalent of an above-water topographic map ... In an ideal case, the joining of a bathymetric chart and topographic map of the same scale and projection of the same geographic area would be seamless ... Thus the topographic map's mountains have the greatest values while the bathymetric chart's greatest depths have the greatest values ...
Famous quotes containing the word map:
“The Management Area of Cherokee
National Forest, interested in fish,
Has mapped Tellico and Bald Rivers
And North River, with the tributaries
Brookshire Branch and Sugar Cove Creed:
A fishy map for facile fishery....”
—Allen Tate (18991979)