GeoLink Overview Goal: Develop Semantic Web technologies that facilitate discovery (and reuse) of geoscience data.Goal: Develop Semantic Web technologies that facilitate discovery (and reuse) of geoscience data. Work Plan:Work Plan: 1.Publish set of ontology design patterns that describe field expeditionsfield expeditions sensor +sample datasetssensor +sample datasets laboratory analyseslaboratory analyses publications/presentationspublications/presentations funding awardsfunding awards (etc) (etc) 2.Upgrade repositories to start publishing their content as Linked Data, using the patterns. 3.Populate a shared/ integrated knowledgebase. GeoLink Partners Biological and Chemical Oceanography Data Management Office (BCO-DMO) Data Observation Network for Earth (DataONE) Interdisciplinary Earth Data Alliance (IEDA) International Ocean Discovery Program (IODP) Long Term Ecological Research (LTER) Network Marine Biological Laboratory/Woods Hole Oceanographic Institution (MBLWHOI) Library Rolling Deck to Repository (R2R) Program + Collaborating Systems: Advanced Cooperative Arctic Data and Information Service (ACADIS) CLIVAR and Carbon Hydrographic Data Office (CCHDO) Federation of Earth Science Information Partners (ESIP) Index to Marine and Lacustrine Geological Samples (IMLGS) U.S. Geological Survey - National Geochemical Database (NGDB) GeoLink Architecture 1.We implement the Linked Data approach defined by W3C: Use URIs to identify things;Use URIs to identify things; Use HTTP URIs, so these things can be dereferenced by both humans and machines;Use HTTP URIs, so these things can be dereferenced by both humans and machines; Describe and query things using standard languages such as RDF and SPARQL; andDescribe and query things using standard languages such as RDF and SPARQL; and Add links to other things.Add links to other things. 1.We define things rigorously (classes and properties with domains/ranges, etc) using OWL. 2.We plan to deploy a simple Web API that returns content as JSON-LD with GeoJSON extensions. GeoLink Registry? GeoLink is not a registry, but we are exposing resources online with canonical identifiers (URIs) for selected useful concepts, eg. Funding Awards (NSF) Field Expeditions (R2R, IODP) Samples (IGSN) Persons (NSF) Undersea Features (GEBCO) Abstracts (AGU) and we are hosting Linked Data content for repositories that lack infrastructure. GeoLink Lessons Focus on the essential subset of classes/properties that your repositories have in common.Focus on the essential subset of classes/properties that your repositories have in common. Start implementing ASAP. Be agile.Start implementing ASAP. Be agile. Lack of standard/ canonical identifiers for key geo concepts remains a hindrance.Lack of standard/ canonical identifiers for key geo concepts remains a hindrance.