Question

Explain the use and types of distributional maps.

Answer 1

Use of distributional maps: The distributional maps help explain the distribution patterns of a particular geographical variable.

The following are the types of distributional maps.

1. Dot method: A dot map is prepared using statistical data. While preparing dot maps, only data gathered through counting is used. The way a variable is distributed throughout the region, the dots are used to show its distribution on the map - for example, the population of a region, the distribution of cattle, etc.
2. Choropleth Method: The data regarding various geographical variables is shown by shades or tints of various colours. While making such maps, the data used for different variables is obtained through various processes such as measurement, surveying, etc.
3. Isopleth method: The distribution was shown with the help of lines showing equal values. When the distribution of a variable is continuous, the isopleth method is then used to show its distribution—for example, altitude, temperature, rainfall, etc.