GIS (Acronym)
Geographic Information System (pictures in the form of a map which are created by a
computer system containing a database, a graphics program and tools to manage,
edit and analyze geographically located data called features and attributes)
Features
Natural objects and h...
Geographic Information System (pictures in the form of a map which are created by a
computer system containing a database, a graphics program and tools to manage,
edit and analyze geographically located data called features and attributes)
Features
Natural objects and human defined objects (all real world objects, trees, buildings,
roads, rivers, continents, oceans, counties, census tracts, parcels)
Attributes
Describe features in a GIS (Name of a country, its population, and area)
Types of information stored in a GIS
Features and Attributes
GIS (defined)
An integrated computer system that is used to display, store, manage, and analyze
data about objects on the earth.
Differences between Paper, Digital, and GIS maps
Paper - static, image does not change like a photograph
Digital - map viewed on a computer which may be static like a paper map or may have some
dynamic tools for finding a location, zooming, panning.
GIS - more than a map, has a database behind it with tools to bring more information in,
display data in various ways, look at sets of data to see patterns & compare relationships,
analyze data to create new information, and helps to provide answers to questions.
Visualization, Geodata Management, and Analysis
(3 primary functions)
Visualization
looking at data on a map to get information and see relationships (GIS Map is a
window into your data with different views to see relationships and patterns)
Geodata Management
organizing and updating information so that it is useful
Analysis
applying GIS tools to geographic data to answer questions and support decisions.
Geographic Approach (def.)
1. Collect and organize geographic data to understand E
2. Analyze data to create geographic knowledge
3. Apply geographic knowledge to find solutions
(a way to gain understanding and solve problems by creating and applying geographic
knowledge with GIS as a tool)
Uses of the geographic approach
Automate workflows
Use resources wisely
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