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 mark points are regarded as the minimum point of the topographic map to modify thereof whilst shielding other local extreme points.
A segment is composed of a number of runs, and many segments constitute a topographic map. The adjacency relations between segments are defined as follows: For segments c and d, if the end run of c is adjacent to the beginning run of d, then c is known as the upper adjacent segment of d, and d is the lower adjacent segment of c, and c and d have a parent-child relationship.
The 1969 topographic maps can demonstrate the tendencies and conditions at the time and the initial screening of agricultural and social activities (see [5]).
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 difference was calculated for each cell found between the two results with the same spatial resolution, by Wilcoxon signed-rank test to compare means.
When a sketch of the conventional topographic map was requested, the same features were represented in exocentric view (Figure 4).
Registration of the Creswell Bay RADARSAT image was performed using a combination of GCPs obtained in the field with a handheld global positioning system (GPS error [less than or equal to] 5 m) and GCPs determined from a topographic map. As the study area is located in an Arctic wetland environment with few obvious GCPs and no existing corner reflectors, we followed a method described by Verbyla (1995) for similar terrain.
It is an online topographic mapping system that delivers an A4 size standard topographic map of anywhere in Victoria.
as a topographic map or aerial photo, and visit landmarks including the Space Needle in Seattle, Mount Rushmore in South Dakota and the U.S.
The lines of latitude and longitude and the elevation contours that you see on a topographic map are always referenced to a specific datum (look at the fine print under the chart's title).
Also, look at your new topographic map and check the elevations on your property and the surrounding properties as well as the land contours.
Digital Raster Graphics (DRG) -- a scanned image of a USGS topographic map