OverlayAnalysen
OverlayAnalysen refers to a family of analytical methods used to examine the effects and relationships that emerge when multiple data layers are combined spatially or thematically. Rooted in geographic information systems (GIS), overlay analysis enables researchers and planners to synthesize attributes from different sources to produce new insights, such as where a suitable site meets environmental constraints or where risk factors converge.
Two main classes are raster overlays and vector overlays. Raster overlays operate at the cell level and
Workflow and requirements: overlay analysis relies on compatible coordinate reference systems and appropriate data resolutions. Preprocessing
Applications include environmental planning, urban design, natural hazard assessment, public health, and resource management. Overlay analyses
Limitations include dependence on data quality and scale; mismatches in resolution or conceptual meaning across layers