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GIS Glossary

Looking to master GIS? This comprehensive GIS glossary covers essential GIS terms and definitions, perfect for both beginners and professionals. Explore the most important geospatial terminology, from spatial data terms and mapping terminology to advanced topological concepts in GIS. Whether you're diving into remote sensing, LiDAR, cartography, or GeoAI, our geospatial dictionary and GIS vocabulary reference help you understand the language of geographic information systems. Discover commonly used GIS acronyms and meanings, get a quick geo terms cheat sheet, and unlock the full GeoTech lexicon used in urban planning, environmental analysis, and earth observation. Stay ahead in the field with this up-to-date GIS glossary 2025, your go-to guide to GIS lingo explained for smart data analysis and decision-making.

Z-Score

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A statistical measure indicating how many standard deviations a value is from the mean, often used in spatial statistics to identify clusters or outliers in spatial data.

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Z-Tolerance

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The minimum allowed difference between z-values for vertices in 3D datasets, used to control the precision of elevation data and reduce errors in 3D analysis.

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Z-Value

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The value representing elevation or another attribute at a specific (x, y) location. Z-values are fundamental for 3D spatial analysis, terrain modelling, and representing surfaces such as elevation or depth.

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Zoom

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The process of enlarging or reducing the view of a map or spatial dataset to display greater or lesser detail of a specific geographic area.

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