GIS Glossary

A tool for performing cell-by-cell mathematical operations on raster datasets, supporting advanced spatial analysis (inferred from standard GIS usage).

A collection of raster layers aligned spatially, used for multi-band or multi-temporal analysis (inferred from standard GIS usage).

The process of converting vector data (points, lines, polygons) into raster format for analysis or visualization (inferred from standard GIS usage).

Assigning new values or categories to raster cells based on defined criteria, often used for suitability analysis or thematic mapping (inferred from standard GIS usage).

A map layer used as a background or contextual base for other spatial data, often aiding interpretation and analysis.

A statistical method used to model and analyse relationships between spatial variables, supporting prediction and explanation in spatial data analysis (inferred from standard GIS usage).

A database structure that organizes data into tables with relationships, enabling efficient storage, retrieval, and analysis of spatial and attribute data.

The position of a feature in relation to other features, important for spatial relationships and context (inferred from standard GIS usage).

The variation in elevation and terrain across a geographic area, often visualized with hillshade or contour lines (inferred from standard GIS usage).

The acquisition of spatial data about the Earth's surface using satellite or airborne sensors, providing key inputs for spatial analysis.

The process of converting spatial data from one coordinate reference system (CRS) to another, ensuring spatial alignment and comparability.

The size of each cell or pixel in a raster dataset, determining the level of spatial detail captured. Higher resolution means finer detail.

A spatial analysis technique that creates multiple concentric buffer zones around a feature, useful for distance-based impact studies (inferred from standard GIS usage).

A spatial dataset representing interconnected roads, essential for network analysis such as routing and service area calculations (inferred from standard GIS usage).

A measure of the accuracy of spatial data, especially for assessing the fit of models or the precision of georeferencing (inferred from standard GIS usage).

A standard language for querying and manipulating relational databases, including those with spatial extensions.

The process of selecting a subset of spatial data or locations for analysis, often used in environmental and field studies.

Images of the Earth’s surface collected by satellites, widely used for land cover classification, change detection, and environmental monitoring.

The ratio between a distance on a map and the corresponding distance on the ground, fundamental for interpreting spatial relationships and measurements.

A graphical element on a map that visually represents the map’s scale, aiding accurate distance interpretation.