Wednesday, March 4, 2015

Spatial Analysis: A Geographical Information System Tool

Spatial Analysis is a technique that professionals use to extract information from large amount of geographical data, map them in digital format, and then display them on maps, as shown in Figure 1. It can analyze business data, health data, environmental data, the data fire fighters use for finding shortest path in case of emergencies, and other such data. Spatial Analysis deals with large database and is a powerful tool that can be helpful in day to day activity such as location-allocation study, spatial relationship, etc.

Figure 1 shows Spatial Analysis


Geographical Information System provides various components to manage spatial data, compute spatial relationships such as distance, connectivity and directional relationships between spatial objects, and visualize both the raw data and spatial analytic results within a cartographic context. A user can view, plot, understand, and query the spatial database using a GIS platform.