Concepts and representation of beach nourishments by spatio - temporal
نویسندگان
چکیده
This study addresses concepts and representation of beach nourishment by two spatial ontologies and one spatio-temporal ontology. We extend a spatial ontology based on crisp objects to one with fuzzy objects, to which temporal aspects are added. The fuzzy ontologies are described using semantic membership functions. The three ontologies are applied to a case study on beach nourishments at the Isle of Ameland. Resulting amounts differed from 58600 to 78600 m. Quality issues are discussed. We conclude that the three ontologies can be implemented and applied, each having its own characteristic qualities.
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