topographic map

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topographic map

A map that shows the contours of the land via a two-dimensional drawing with multitudes of contour lines showing changes in elevations.Each map has its own scale.The contour lines indicate a change in elevation by the scale amount. For example, each line might represent a 1-foot change in elevation. The distance between the lines can be computed by reference to the distance scale.For example,1 inch might equal 50 feet.Two contour lines that are 1 inch apart would indicate a grade of 1 foot over the course of 50 feet, which is very gentle. The closer the lines on the topographic map, the steeper the incline.

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The first edition of the inch-to-the-mile topographic mapping for the area was published in 1942, showing the canal and the Maramarua River in the expected configuration (Fig.
It has been estimated that it would cost the State of Victoria $48 million to re-create a state-wide hard-copy topographic mapping program using the traditional manual methods.
European settlement in Australia commenced in 1788 but topographic mapping coverage did not become a national government priority until about one and a half centuries later.
During the Cold War, the Military Topographic Directorate of the Soviet Army General Staff conducted a secret topographic mapping program at a high level of detail and coverage around the globe.
The mapping of New Zealand's fourteen national parks has evolved in parallel with the topographic mapping of the country but has been influenced by the political constraints and directions of the governments of each period.
It is an automated topographic mapping system, which dynamically produces topographic content using digital data.