Tools for Linked Geospatial Data Exploiting Open Data Manolis Koubarakis Brussels October 11-13, 2016

Motivation - Open EO Data Lots of open Earth Observation data have been made available in the last few years too.

Motivation - Data Silos All this data still exists in different data silos (e.g., different EO archives).

Main Objectives 1. Open up existing EO silos by moving them over to the linked data paradigm.

Main Objectives 2. Stay close to the real world: Develop services that heavily utilize linked data: Improving Greenhouse Gas Emission Inventories Management of Urban Growth Challenges Providing Economic and Ecological Advice to Farmers Assess the Quality of European Seas Monitoring Desertification Hazard Information Services Marine Services based on AIS Data Groundwater modeling

Life Cycle of Linked Open EO Data

Our Linked Data Technologies Strabon ontop Spatial GeoTriples Silk Sextant

A state-of-the-art spatiotemporal RDF store

Find more at: http://www.strabon.di.uoa.gr Strabon Find more at: http://www.strabon.di.uoa.gr WKT GML stRDF graphs stSPARQL/ GeoSPARQL queries

Creating virtual RDF graphs on top of geospatial databases S atial Creating virtual RDF graphs on top of geospatial databases

Find more at: https://github.com/ConstantB/ontop-spatial ontop Spatial Find more at: https://github.com/ConstantB/ontop-spatial Ontology Application S atial Mappings Source

Publishing geospatial data as RDF graphs

Find more at: https://github.com/LinkedEOData/GeoTriples

Discovering Spatial and Temporal Links among RDF Data

Find more at: http://silk.di.uoa.gr/ Silk Find more at: http://silk.di.uoa.gr/ intersects close Natura Protected Areas - Field Boundaries Field Boundaries - OSM Water Bodies

Visualizing Time-Evolving Linked Geospatial Data

Find more at: http://sextant.di.uoa.gr Sextant Find more at: http://sextant.di.uoa.gr

Thank you! Questions? http://melodiesproject.eu info@melodiesproject.eu @MelodiesProject