Prominence of Spatial Database in Geographical Information Systems
نویسنده
چکیده
Spatial Database is a collection of spatially referenced data that acts as a model of reality. Geographical Information System includes spatial data which is either in raster or vector form and data derived from remote sensors are increasingly utilized as source for GIS. Spatial data is the core part of the Geographical Information System. Data mining techniques are studied to discover knowledge from GIS database and remote sensing image data in order to improve land use or land cover classification. Remote sensing (RS) technologies was utilized to extract some of the important spatially variable parameters, such as land cover and land use (LCLU), from satellite images. Land Use Land Cover (LULC) classification from remotely sensed data is an important research and widely used in remote sensing application. The goal of this paper is to provide broad overview of Geographical information system and remote sensing data which includes spatial data. Keywords—Spatial data, Geographical Information System, Remote Sensing, Raster data. .
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