1. Rolling Deck to Repository (R2R) Program Mission: Stewardship of routinely-acquired environmental sensor data+documentation from U.S. academic research fleet Funding: NSF GEO Ocean+Polar Divisions ONRServices: Publish master cruise catalogPublish master cruise catalog Organize, archive, and disseminate data+documentationOrganize, archive, and disseminate data+documentation Assess data qualityAssess data quality Create post-processed and/or quality- controlled data productsCreate post-processed and/or quality- controlled data products Support at-sea event loggingSupport at-sea event logging

2. R2R Linked Data http://data.rvdata.us/ Open-source software. http://d2rq.org/ http://d2rq.org/ Java servlet connects to PostgreSQL backend and creates a “virtual” RDF graph on-the-fly. Provides a SPARQL endpoint and a Pubby browser.

3. SNORQL Web-based query builder for SPARQL endpoint

4. URI pattern: http:// data.rvdata.us/ id/ CLASS/ INSTANCE eg. http:// data.rvdata.us/ id/ person/ 100004

5. Craig Cary has sailed on 5 research expeditions

6. Details for one cruise incl. links to datasets and properties from OceanLink patterns. D2RQ automatically adds provenance.

7. Encode cruise track geometry in geosparql.

8. Embed Linked Data URIs into ISO records and WxS services.

9. Replace D2RQ with GraphDB physical triplestore. Next Steps Implement ontology design patterns developed by EarthCube GeoLink project. Continue mapping local terms to int’l/ community reference vocabularies.