Map Algebra
Map Algebra is a rule-based language and computational framework for deriving new raster layers from existing ones by applying arithmetic, logical, or statistical operations cell by cell or across neighborhoods. Formalized by Dana Tomlin in 1990, it is the foundational algebraic system underlying raster GIS analysis and is widely used in environmental science, urban planning, hydrology, and land-use modeling whenever spatially explicit calculations on gridded data are required.
Source record
Citations copied verbatim from the method’s source record. No claim-level verification is inferred from them.
- Tomlin, C. D. (1990). Geographic Information Systems and Cartographic Modeling. Prentice Hall. · ISBN 978-0-13-350927-4
Curated claims
Claims persisted in the evidence ledger, each with its own assessment.
This view does not invent a claim assessment when the ledger has none.
Related methods
Generated from the method graph and shown as machine-suggested relations — no evidence claim is inferred.