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门户 Geography Information system

Information system

Relating information from different sources
GIS uses spatio-temporal (space-time) location as the key index variable for all other information. Just as a relational database containing text or numbers can relate many different tables using comm ...
2014-2-21 22:26
GIS techniques and technology
Modern GIS technologies use digital information, for which various digitized data creation methods are used. The most common method of data creation is digitization, where a hard copy map or survey pl ...
2014-2-21 22:25
History of development
One of the first applications of spatial analysis in epidemiology is the 1832 "Rapport sur la marche et les effets du choléra dans Paris et le département de la Seine". The French geographer Charles ...
2014-2-21 22:25
Applications
GIS is a relatively broad term that can refer to a number of different technologies, processes, and methods. It is attached to many operations and has many applications related to engineering, plannin ...
2014-2-21 22:24
Geographic information system
geographic information system (GIS) is a system designed to capture, store, manipulate, analyze, manage, and present all types of geographical data. The acronym GIS is sometimes used for geographical ...
2014-2-21 22:24

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