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  2. Topographic map - Wikipedia

    en.wikipedia.org/wiki/Topographic_map

    Topographic maps are also commonly called contour maps or topo maps. In the United States, where the primary national series is organized by a strict 7.5-minute grid, they are often called or quads or quadrangles. Topographic maps conventionally show topography, or land contours, by means of contour lines.

  3. Map Men - Wikipedia

    en.wikipedia.org/wiki/Map_Men

    Map Men is an edutainment mini-series [2] [3] currently in its fourth series, which is created, written, and presented by Jay Foreman and/or Mark Cooper-Jones [4]. [ 2 ] [ 3 ] [ 5 ] A mix of comedy and geography , [ 5 ] its videos regularly attract 1-5 million views on YouTube .

  4. Wikipedia : WikiProject Maps/Conventions/Topographic maps

    en.wikipedia.org/.../Conventions/Topographic_maps

    Be also conscient that a topographic maps is first a background, which then will be complete by other layers. Most of time, these upper layers are transport ways (see exchanges maps), Kingdoms' areas or troops and moves (see areas maps & historical maps), or even officials borders from location maps. Tutorials. Wikipedia:Graphic Lab/Resources ...

  5. Topography - Wikipedia

    en.wikipedia.org/wiki/Topography

    A topographic map of Stowe, Vermont with contour lines This false-color satellite image illustrates topography of the urban core of the New York metropolitan area, with Manhattan at its center. Topography is the study of the forms and features of land surfaces .

  6. Topographic profile - Wikipedia

    en.wikipedia.org/wiki/Topographic_profile

    A topographic profile or topographic cut or elevation profile is a representation of the relief of the terrain that is obtained by cutting transversely the lines of a topographic map. Each contour line can be defined as a closed line joining relief points at equal height above sea level. [ 1 ]

  7. Watershed delineation - Wikipedia

    en.wikipedia.org/wiki/Watershed_delineation

    Watershed delineation is the process of identifying the boundary of a watershed, also referred to as a catchment, drainage basin, or river basin.It is an important step in many areas of environmental science, engineering, and management, for example to study flooding, aquatic habitat, or water pollution.

  8. Stream gradient - Wikipedia

    en.wikipedia.org/wiki/Stream_gradient

    On topographic maps, stream gradient can be easily approximated if the scale of the map and the contour intervals are known. Contour lines form a V-shape on the map, pointing upstream. By counting the number of lines that cross a certain segment of a stream, multiplying this by the contour interval, and dividing that quantity by the length of ...

  9. National Topographic System - Wikipedia

    en.wikipedia.org/wiki/National_Topographic_System

    Not all National Topographic System maps strictly follow the National Tiling System's linear grid. Some maps also, as an "overedge", cover land in an area which would otherwise be covered by an adjacent map sheet, simply because the latter area does not contain enough land in Canada to warrant a separate printing. [4] [clarification needed]