This is an INDEX contour line. Rule 5 - Contour lines are closer together in steep terrain and farther apart in flat areas. Rule 6 - Contour lines close to form 

An index contour is one of the ways that vertical dimension, or vertical scale, is demonstrated on a topographical map. The index contour represents the vertical scale on a map region by a thick solid line with the various elevations printed on it. Definition of index contour. A contour line shown on a map in a distinctive manner for ease of identification, being printed more heavily than other contour lines and generally labeled with a value (such as figure of elevation) along its course. index contour line A contour line accentuated by a heavier line weight to distinguish it from intermediate contour lines. Index contours are usually shown as every fifth contour with their assigned values, to facilitate reading elevations. Sometimes a map will have darker and thicker contour intervals. This is called the Index Contour Interval. Index contour intervals appear less frequently and represent a larger elevation change. Definition of index contour in the Definitions.net dictionary. Meaning of index contour. What does index contour mean? Information and translations of index contour in the most comprehensive dictionary definitions resource on the web.

30 Aug 2019 For example, there are 4 contour lines between the 5200ft and 5400ft index contours (see Figure 3.2), which means that there are 4 contour 

What pattern do contour lines make around hills and mountains? What do index contours have periodically along their lengths that other lines do not? Technical specifications for 1', 2', and 5', Sanborn Contour maps derived from lines of equal elevation which are intended to correspond with the orthometric Every fifth contour line is an Index Contour, distinguished using a heavier line  Note that index contours (heavier weight) remain unbroken, even over steep used as inputs to the process which returned a generalised DEM constrained to  3 May 2008 What is the contour interval for this map? You need to infer it from counting the unmarked lines from one index contour line to the next and then  A very effective type of map is one which uses isolines (a line that joins points of equal These heavier contour lines are known as index contours because they  

A contour line accentuated by a heavier line weight to distinguish it from intermediate contour lines. Index contours are usually shown as every fifth contour with 

This reference line is an index contour. As noted earlier, an index contour is one that is a bolder, darker contour line and has a value written on the line ever so often. First, find the value of the index contour addressed in the question and then follow the line until you see a number associated with the line. In cartography, a contour line (often just called a "contour") joins points of equal elevation (height) above a given level, such as mean sea level. 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. A contour interval is the vertical distance in meters or feet between contour lines on a topographical map. These show the general rise and fall of the land and help identify and define terrain features such as hills and valleys. Index contours give specific elevation data for a particular line. Index contours help the map reader get a better feel for the topography of an area. Symbolising index contours is easy to do with a little bit of preparation. In an earlier post we looked at creating elevation contours: This time we’ll look at how we can better display our contours by symbolising some index contours. On a topographic map, an index contour is a contour which is usually thicker and bolder with its elevation value written on it. Using this index contour and the contour intervals, we can estimate the values of other contour lines on the map.

Such lines are called index contour lines. They are usually labeled with their corresponding elevations. Contour lines (thinner lines) between index contours are 

Where an index contour coincides with an area of much detail, it may be shown An erosion gully or trench which is too small to be shown by symbol 106 is  24 Mar 2016 What is the contour interval on Toporama maps and the Mapping Tool? Index contours are shown as slightly darker lines to make them more  An index contour is one of the ways that vertical dimension, or vertical scale, is demonstrated on a topographical map. The index contour represents the vertical scale on a map region by a thick solid line with the various elevations printed on it. Definition of index contour. A contour line shown on a map in a distinctive manner for ease of identification, being printed more heavily than other contour lines and generally labeled with a value (such as figure of elevation) along its course. index contour line A contour line accentuated by a heavier line weight to distinguish it from intermediate contour lines. Index contours are usually shown as every fifth contour with their assigned values, to facilitate reading elevations. Sometimes a map will have darker and thicker contour intervals. This is called the Index Contour Interval. Index contour intervals appear less frequently and represent a larger elevation change. Definition of index contour in the Definitions.net dictionary. Meaning of index contour. What does index contour mean? Information and translations of index contour in the most comprehensive dictionary definitions resource on the web.

This is an INDEX contour line. Rule 5 - Contour lines are closer together in steep terrain and farther apart in flat areas. Rule 6 - Contour lines close to form 

What is a Topographic Map? usually indicate similar classes of information: topographic contours the user determine elevations, index contours are wider.

Note that index contours (heavier weight) remain unbroken, even over steep used as inputs to the process which returned a generalised DEM constrained to  3 May 2008 What is the contour interval for this map? You need to infer it from counting the unmarked lines from one index contour line to the next and then  A very effective type of map is one which uses isolines (a line that joins points of equal These heavier contour lines are known as index contours because they