GIS


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GIS

GIS

(1) (Geographic Information System) An information system that deals with spatial information. Also called "mapping software," it links attributes and characteristics of an area to its geographic location. A GIS is used in a variety of applications, including exploration, demographics, dispatching, tracking and map making. Using satellites and aerial photography, the U.S. Geological Survey and other organizations have developed digital maps of most of the world and continue to update them. Unlike paper maps, digital maps can be combined with layers of information. See digital elevation model and GIS glossary.

(2) (Generalized Information System) An early IBM mainframe query and data manipulation language.
References in periodicals archive ?
They will also gain exposure to new ideas related to GIS mentoring programs, analysis of GIS reference statistics, the application of centralized and distributed GIS service models, and geoarchiving.
GIS have been used at different levels of sophistication in environmental epidemiology studies.
But GIS is a natural fit for social studies--within both geography and history.
Interrain Pacific, a nonprofit conservation organization based in Portland, Oregon has assembled enough maps with GIS software to publish The Rain Forests of Home: An Atlas of People and Place.
A product largely of military, satellite imaging, and computer technology, GIS is a $500-million industry in the U.
ADRSA was instrumental in establishing the Library Geographic Information Systems (GIS) and Data Lab and in creating the GIS and Data Specialist position (hereafter referred to as GIS Specialist).