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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Contract notice: Development of digital maps of the topographic map on the scale of 1:10 000 for the selected area of the malopolskie voivodeship with the updating of data sets bdot10k - part.
These methods have produced good results for some high-quality topographic maps, but the results are not satisfactory for low-quality maps, mainly due to the following three problems [5]: (1) color aliasing and false colors on scanned maps due to poor paper (such as paper turning yellow over time) or printing quality and the performance of the scanner (on a 96-dot-per-inch (DPI) resolution map, most contour lines are 2 to 4 pixels in width; thus, color deviation occupies a large portion in pixels of lines); (2) conglutination of adjacent lines to form thick lines in some areas of a scanned map where contour lines are densely distributed [6]; (3) a large number of contour lines gaps caused by intersecting and overlapping information on a topographic map after color segmentation.
Nav-e-gate4less is counted among UK's trusted Garmin Topographic Maps suppliers.
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 geospatial data will be used for topographic map production to manage sustainable forestry projects and to support other local infrastructure needs, Intermap said.
Published in 2003 in Russian as an updated edition of a topographic and special maps manual for officers and for students at Russian and Soviet military educational institutions, this work represents a major contribution to the understanding and interpretation of Russian topographic maps.
If the given purpose does not involve accurately identifying the position of the small tundra ponds, then the use of topographic maps could be suitable, as the larger lakes were in good positional agreement with those mapped by the other methods.
The Ambios Xi-100 IFM uses white light interference to generate a three-dimensional topographic map of the razor cut rubber surface (figure 1).
These topographic maps are compiled from the most up-to-date Vicmap Digital data.
Illustrated with 65 original computer-generated topographic maps, Hiking Death Valley offers 280 hiking or driving destinations, paths ranging from simple day hikes to multiple-day treks, eight desert ranges, distance and elevation tables for all routes, geology, flora, and fauna information, advice for desert hiking, and much more.
Aerial imagery and topographic maps of the United States have also recently been added to the site.
Geographic Names Information System (GNIS) -- a database of place names that lists all features that appear on the 1:24,000 USGS topographic maps

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