A to Z GIS | Explore this related guide, featuring updated terms and graphics and developed in coordination with Esri’s GIS Dictionary team.
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noise
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[information systems, standards]
Disturbance in a frequency band; irregular, sporadic, or random oscillation in a signal; random or repetitive events that interfere with communication.
[data conversion, standards]
In a raster, irrelevant or meaningless cells that exist due to poor scanning or imperfections in the original source document.