THE EXTENT OF THE UNCONFINED AQUIFER BASED ON THE DEMPSTER-SHAFER THEORY ON THE EXAMPLE OF POSTGLACIAL SANDUR AREA
Journal Title: Biuletyn Państwowego Instytutu Geologicznego - Year 2010, Vol 441, Issue 441
Abstract
The research aimed to present an application of the technique based on the Dempster-Shafer theory for the determination of the shallow unconfined aquifer extent in a nonparametric (probabilistic) scale. The geology of research area is predominantly composed of the Pleistocene postglacial sediments. Only unconfined aquifers were taken into account in the study described in these paper. The resulting image showed a map of the aquifers’ extents in a probabilistic scale i.e. in a range between 0 (the lack of the aquifer, which is confirmed by research) and 1 (confirms the occurrence of the aquifer proved by research). Data analyses were carried out in the Geographic Information System. All the data were imported to the IDRISI. The Dempster-Shafer probability theory supported by the module BELIEF of IDRISI software was applied to the algebra of pixel maps.
Authors and Affiliations
Marek KACHNIC
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Sylwetka naukowa doc. dr hab. Krystyny Kenig