Geographic Information System

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Related to Geographic Information System: Remote sensing

Geographic Information System

(GIS) A computer system for capturing, storing, checking, integrating, manipulating, analysing and displaying data related to positions on the Earth's surface. Typically, a GIS is used for handling maps of one kind or another. These might be represented as several different layers where each layer holds data about a particular kind of feature (e.g. roads). Each feature is linked to a position on the graphical image of a map.

Layers of data are organised to be studied and to perform statistical analysis (i.e. a layer of customer locations could include fields for Name, Address, Contact, Number, Area). Uses are primarily government related, town planning, local authority and public utility management, environmental, resource management, engineering, business, marketing, and distribution.

GIS dictionary.
References in periodicals archive ?
Main features: Implementation of Geographic Information System GPMG
At the Colorado Department of Public Health and Environment, geographic information system technology has been assisting workers since 1995.
Customers of Intergraph mapping and Geographic Information Systems software participated in the selections.
Other studies deal with a wide variety of topics such as developing lessons-learned methodologies, humanitarian demining requirements analysis, health resources in the global landmine community, an evaluation of geographic information systems available to meet demining management needs, and a nominal mine awareness module for Mozambique that can be modified for other countries.
Tsering Wangyal Shawa is a Geographic Information Systems Librarian at Princeton University.
Screening for lead exposure using a geographic information system.
Geographic information systems combined with methods of spatial analysis provide powerful new tools for understanding the epidemiology of diseases and for improving disease prevention and control.
Glass and colleagues developed a detailed LD risk map of Baltimore County by using environmental risk factors within a geographic information system (GIS) (4).
Values may be assigned to square kilometers, for example, in a geographic information system (GIS) format, which may be easily matched to coordinates or geocodes of any residential location of study populations.

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