Question

Describe three uses of GIS (Geographic Information Systems).

Answer 1

Geographic Information Systems in short GIS is computer system used for capturing the earth images and store the captured data.the stored data is checked for various purposes and the data is displayed based on the requirement.

GIS can be used to display data on a sigle map based on a layer based approach.

uses:

Mapping data :

the main and primary function of Geographic Information Systems is the visual representation of data.data residing inside the database is visually represented in the format of a map.

proximity analysis:

it is an analytical technique which is used to define relationship between a particular location and other locations.social and economic demographics are certain factors considered in this technique.it is used to determine distance between two points.find closest point which can be reached in minimal time

Buffering:

it is a technique used to analyse the sphere of influence of a particular point.buffering creates a zone around the given particular point.this buffering technique helps to create zone around a specified geographic feature which helps in further analysis that can be made using overlay method.

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