Glossary for Geospatial Science

raster cell:� One value in a raster.� If the raster contains geodata, such as an image or elevation surface, each raster cell corresponds to one specific area on the ground.� A raster cell value may be the elevation above sea level at one position in a survey site or the intensity of red radiation for a pixel in a video image.� For convenience, a raster cell is usually thought of as square or rectangular, although many image collection devices actually measure circular or elliptical areas.