What is GIS ?
GIS Tutorial .
In this course we are primarily interested in basic use of ArcGIS software. but it is important to have a foundational understanding of what GIS is, who uses it. and why this presentation will do just that and better prepare you for the more complex concepts to come GIS stands for geographic information systems.
The geographic information part of the acronym refers to information about positions on the Earth's surface this is also known as spatial data. Because it can be located in space. and has a geographic reference an example of spatial data. may be something like your home address the system is special while information systems in general are used to manipulate summarized query edit and visualize data GIS does all these things with spatial information. a GIS also includes a spatial data that does not contain a spatial reference for example while your physical home address would be considered spatial data the fact that you own your home or that your home is gray are a spatial data by combining spatial and a spatial data in layers you create a holistic view of the world.
That is what makes G is so powerful a GIS allows you to examine many layers of other information you can also perform analysis and provide valuable visual representations of data that often reveal patterns and trends that might otherwise have gone unnoticed without the use of GIS techniques location is important for many different disciplines as such the application of GIS is limited only by the imagination of those who use it there are numerous ways.
In which this technology can be used the most common ones are aid and development for humanitarian aid and planning business for site selection or market research defense and intelligence for military operations such as troop deployments and mission planning using updated and real-time information education for archaeology research and historic documents as well as K through 12 STEM Education government there are many uses within our government some include land use classification elections and redistricting urban and regional planning to name a few Health and Human Services public health for disease control and environmental health natural resources conservation and resource management like the Forestry Service public safety 9-1-1 services.
Homeland Security and law enforcement use GIS transportation public transit highways and aviation and utilities and communications like location-based services and outage reporting I hope you can take some time now to think of some new and exciting applications of GIS in your life and how you can apply this knowledge moving forward with GIS
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