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 input of this method is a scanned topographic map.
Statistical analysis determined the differences between the results obtained from the two data sources used to calculate the topographic factor, SRTM and topographic maps.
The water bodies on the topographic map sheet (Union River, 58B/11-1:50000) within the target area were digitized manually and overlaid on the aerial photographs along with the extracted water class from the satellite image.
Customers who obtain a topographic map online also receive a technical information sheet that includes standard information relevant to all mapsheets.
When a mark on a sidewalk, manhole cover, or so on is used as a turning point, the elevation of the turning point can be included in the topographic map.
Wearing the glasses makes the topographic maps jump out at you in true 3D movie-like fashion.
The main objective was to determine if dual-frequency, high-precision GPS receivers in kinematic mode with real-time differential corrections could collect ground surface three-dimensional position data to produce a topographic map.
The subject of the order is a service consisting in the development of digital maps of the topographic map on a scale of 1:10 000 for the selected area of the malopolskie voivodship, Along with the updating of data sets bdot10k.
These datasets depict standard topographic map features such as roads, contours, rivers, lakes, built-up areas, tree cover, spot heights, etc.
Westervelt's group] is looking at rivers flowing in the landscape, and we're making a topographic map of the landscape," Ashoori says.
The new section features a striking comparison of a 125-dpi topographic map sold by competitors and LAND INFO's 250-dpi map of the same area.
Users are promised instant navigation from a USGS topographic map to an aerial photo.