Essential Concepts: GIS, Smart Cities, and E-Governance
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Geographic Information Systems (GIS) Fundamentals
A Geographic Information System (GIS) is a computer system designed to analyze and display geographically referenced information. It utilizes data that is intrinsically linked to a unique location.
Most of the information we have about our world contains a location reference. For instance, where are USGS streamgages located? Where was a rock sample collected? Exactly where are all of a city's fire hydrants?
Consider an example: if a rare plant is observed in three different places, GIS analysis might reveal that these plants are all on north-facing slopes, above an elevation of 1,000 feet, and receive more than ten inches of rain per year. GIS maps can then display all locations in the area that... Continue reading "Essential Concepts: GIS, Smart Cities, and E-Governance" »