Untitled Flashcards Set

Buffer

A zone around a spatial feature at a specified distance.

Dissolve Buffers

Merging overlapping buffers into a single shape.

Multi-Ring Buffer

A buffer with multiple distance bands.

Euclidean Distance

Straight-line distance between two points.

Network Distance

Distance based on travel routes (e.g., roads).

Projection

The method used to represent the Earth’s curved surface on a flat map.

Mercator Projection

A common but distorted map projection.

Clip

Extracts only the part of a dataset inside another boundary.

Erase

Removes features inside a specified boundary.

Intersection

Keeps only overlapping areas from two datasets.

Union

Combines datasets while keeping all areas.

Geoprocessing

The process of analyzing spatial data using GIS tools.

Projected Coordinate System (PCS)

A map system that reduces distortion for measurements.

Generalization

Simplifying data for visualization.

Attribute Join

Combining data based on matching attribute values.

Spatial Join

Combining data based on spatial relationships.

Reprojection

Changing the coordinate system of spatial data.

Feature Class

A GIS dataset containing points, lines, or polygons.