About GIS

by Aakash Singha October 18, 2022

GIS is an information technology which stores, analyses and display both spatial and non-spatial data. GIS Objectives: 1. To m aximize efficiency of decision making and planning 2. To provide…

GIS is an information technology which stores, analyses and display both spatial and non-spatial data.

GIS Objectives:

1. To m aximize efficiency of decision making and planning

2. To provide efficient means for data distribution and handling

3. To eliminate redundant database-minimize duplication

4. To integrate information from many sources.

5. To generate new information via complex analysis/queries involving geographical reference data.

6. To update data quickly and cheaply.

For any application there are five generic questions a GIS can answer-

Location: What exists at a particular location? This question seeks to find out for the answer like, location of a particular object or area in terms of latitude/longitude or X/Y.
Condition: Identify where certain condition exists. This tends to answer for all those questions where certain conditions are satisfied.
Trends: What has changed since? This question is applied to find a noticeable difference or change incurred within a particular time period.
Pattern: what spatial pattern exists? This is the most logical question is answered by GIS that distribution of spatial features and reasons behind that distribution.
Modeling: What if…?

About GIS

GIS Objectives:

World Agency of Planetary Monitoring and Earthquake Risk Reduction

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