How Does the Union Overlay Technique Work in GIS?

Описание: Ever wondered how geographic information systems combine different layers of spatial data? This video dives into the Union Overlay technique, a powerful GIS tool that allows you to merge multiple datasets while retaining all original features and attributes. Discover how this method creates a comprehensive output, perfect for detailed spatial analysis.

In this explanation of the Union Overlay technique, you will learn:
► What the Union Overlay technique is and its fundamental purpose in GIS.
► How it combines two or more polygon layers into a single, integrated output layer.
► The key difference between Union and other overlay operations like Intersect or Erase.
► How Union preserves all features and attributes from both input layers, even non-overlapping areas.
► Practical applications of Union Overlay for comprehensive spatial analysis and planning.


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