INTAMAP: the design and implementation of an interoperable automated interpolation web service

Edzer Pebesma, Dan Cornford, Gregoire Dubois, Gerard B.M. Heuvelink, Dionisis Hristopoulos, Jürgen Pilz, Ulrich Stöhlker, Morin Gary, Jon O. Skøien

Research output: Contribution to journalArticlepeer-review


INTAMAP is a Web Processing Service for the automatic spatial interpolation of measured point data. Requirements were (i) using open standards for spatial data such as developed in the context of the Open Geospatial Consortium (OGC), (ii) using a suitable environment for statistical modelling and computation, and (iii) producing an integrated, open source solution. The system couples an open-source Web Processing Service (developed by 52°North), accepting data in the form of standardised XML documents (conforming to the OGC Observations and Measurements standard) with a computing back-end realised in the R statistical environment. The probability distribution of interpolation errors is encoded with UncertML, a markup language designed to encode uncertain data. Automatic interpolation needs to be useful for a wide range of applications and the algorithms have been designed to cope with anisotropy, extreme values, and data with known error distributions. Besides a fully automatic mode, the system can be used with different levels of user control over the interpolation process.
Original languageEnglish
Pages (from-to)343-352
Number of pages10
JournalComputers and Geosciences
Issue number3
Publication statusPublished - Mar 2011


  • environmental data
  • environmental information
  • in situ sensors
  • spatial interpolation
  • geostatistics
  • OGC
  • SOA


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