Notes

The Functions Of A Topographic Survey
A topographic survey is normally performed by a group of geologists with the purpose of producing two-dimensional maps which represent three-dimensional components of the landscape. The features commonly included are both natural and man-made objects, such as for example mountains, lakes, trees, dams, buildings and roads. These diagrams may also be referred to as relief maps.

Discover more here use contour lines, symbols and colors as representations for different land elements, including elevation and depressions. The line, polygon and point will be the three main symbols incorporated into topographical diagrams. Small structures such as buildings are represented by dots. Straight, curved and dotted lines are accustomed to depict linear items such as for example roads, railways and rivers. Wide expanses of water are often indicated by blues, dense forests with greens.


Contoured lines spaced apart at specific intervals can be employed to illustrate sharp slopes, deep trenches and tall mountains. The more closely spaced lines symbolize steep hills, while widely spaced lines denote gentle slopes.

There are many methods used during the creation of relief diagrams. The direct inspection of a site is a consistent practice since the earliest recognised topographical map was created by america Geological Service in 1876. Visiting sites can offer the map-making teams with important confirmable data points.

Since Your Environment , aerial studies have also provided valuable resources to cartographic teams. The development of the ability to take photographs from airplanes and helicopters has helped expand the detail and accuracy of relief charts.

A highly effective topographic survey can result in the creation of very useful pamphlets. Campers, engineers, hikers, students and others can have the advantage of exploring the natural and artificial land top features of areas without being required to visit the sites in person. Among other uses, usage of landscape details can be helpful when planning vacations, analyzing weather patterns or considering construction projects.

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