Spatial Data Repositories. The Spatial Data Repositories include services, technology, policies and practices designed in order to provide the following features: • Data Discovery: The ability to browse, query and access metadata files about accessible geospatial datasets. This feature is obtained exploiting GeoNetwork webservice, the Open Source catalogue for geospatial metadata compliant with standards mandated by Open Geospatial Consortium (OGC). • External Repository Federation: Transparently extend the Data Discovery capabilities by including output from registered external catalogues and repositories in order to give users global result from a single point. • Data Access & Storage: Provide users and applications to access/store geospatial data in standard formats. Due to the heterogeneity of spatial data representation and formats, the following technologies have been adopted: ◦ PostGIS: Geospatial extension of PostgreSQL relational DBMS; ◦ GeoServer: Open Source application for management and dissemination of geospatial data through standards mandated by OGC; ◦ Thredds Data Server: Unidata's Thematic Real-time Environmental Distributed Data Services (THREDDS) is a web server that provides data access for scientific geospatial dataset formats (i.e. NetCDF).
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Sources: Deliverable Agreement, Deliverable Document