The area of the closed discharge field is be determined from the contour map.The contour gradient is drawn from the contour map.The reservoirs capacity helps to know from the contour map.Contour is used to select the location for the construction of dams, bridges, etc.Military tactics can be created using Contour.
With the help of contour, knowing the topography of the ground helps.Maps are drawn with the help of contours.Usually, there are different contour intervals for the different vertical distances on maps.ĭefine Contour interval is a line that connects the different points of equal height at the surface of the earth. How Do You Measure the Height of Land on a Map?Ĭontour Interval Definition: A contour interval is a vertical height or a difference in elevation between contour lines in a topographic map.How Do You Find the Height of a Contour Line?.What Are Four Main Uses of Topographic Maps?.What Is an Important Part of a Topographic Map?.What Is the Contour Interval Used on This Map?.What Are the Uses of Contour in Surveying?.What Is Meant by the Term Contour Interval?.What Is the Contour Interval on the Map?.What Are Index Contour Lines on a Topographic Map?.Where Is the Contour Interval on a Map?.How Do You Find the Contour Interval on a Map?.How Much Is the Contour Interval on a Topo Sheet?.How Do You Read Contour Intervals on a Topographic Map?.What Is Contour Interval on a Topographic Map?.What Is the Factors Affecting Contour Interval?.What Is the Difference Between Contour Interval and Scale?.What Is the Purpose of Contour Interval?.What is the Contour Interval of the Map?.The Contour Intervals for Different Purposes Are Kept as Follows.Contour Interval Depends on the Following Factors.This survey is imparted in a precise and prompt manner by our experienced team members who always strive hard to gain the maximum satisfaction of the clients by providing them with well managed survey. Our reputation in land survey industry has largely been counted by the shooting popularity of our offered Contour Survey. It provide the basis for coloring method.By reading contour interval it is easy to sort out the different elevation of the landscape.It provides complete and clear image of the land and the surrounding area.It depicture slope and size of different landforms on map.After tracing the points on the plan, reduced levels are marked and contour lines are interpolated between the selected points. Hereby in this method horizontal control is established first and then the levels of those points found. In Indirect Method of contouring, levels are taken at some selected points and their levels are reduced. Direct Method of Contouring is suitable for small areas and where great accuracy is required. Direct method of contouring is the most accurate but very slow and tedious as a lot of time is wasted in searching points of the same elevation for a contour. These points are then surveyed and plotted on plan and the contours drawn through them. In this method, the contours to be located are directly traced out in the ground by locating and making a number of points on each contour. Contour survey is carried out at the starting of any engineering project such as a road, a railway, a canal, a dam, a building etc. Learn more… Purposes of ContouringĪ contour map is very useful since it provide valuable information about the land. In land surveying a contour map is a map illustrated with contour lines, for example a topographic map, which thus shows valleys and hills, and the steepness or gentleness of slopes. Main objective of conducting contour surveys is to identify any noticeable difference in elevation of the existing land. In the land property world, a contour is an outline of a mass of land. Contouring in surveying is the determination of elevation of various points on the land and fixing these points of same horizontal positions in the contour map.
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