An ontological model for semantic interoperability within an Earth Observation knowledge base

The present paper presents an ontological model which will be included in an EO Knowledge Base (KB) covering four thematic strands. As a multitude of heterogeneous data will be made available through the KB, it is essential to ensure high standards of discoverability, accessibility, and interoperability. The overall aim therefore, is to align and integrate a set of existing semantic resources and ad hoc vocabularies into a single ontological conceptual model, which defines the specific domains and which will facilitate information and knowledge generation from EO data and guarantee semantic interoperability within the KB platform, ensuring harmonised access to and retrieval of the vast volume of data produced, turning it into usable information and knowledge