GIS Dictionary

Definitions for GIS terms related to operations such as analysis, GIS modeling and web-based GIS, cartography, and Esri software.

Now available for purchase: A to Z GIS: An illustrated dictionary of geographic information systems.

Search the GIS Dictionary:

  Search  

Browse the GIS Dictionary:

GIS Bibliography

Researching GIS?
Search the GIS Bibliography for a vast index of books, journals, conference proceedings and reports.

spline interpolation

See Also: interpolation, spline

  1. [spatial statistics (use for geostatistics)] An interpolation method in which cell values are estimated using a mathematical function that minimizes overall surface curvature, resulting in a smooth surface that passes exactly through the input points.