Semantically supporting data discovery, markup and aggregation in EMODnet

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Semantically supporting data discovery, markup and aggregation in EMODnet

  1. 1. Roy Lowry & Adam Leadbetter British Oceanographic Data Centre rkl@bodc.ac.uk & alead.ac.uk
  2. 2. • Creating information products for EMODnet from SeaDataNet data • Increased discoverability of Parameter Usage Vocabulary Codes • Increased interoperability with work of CSIRO under the ODIP project
  3. 3. • Semantic aggregation: 1. Deciding what the aggregated parameter is (and what it is to be called) 2. Deciding which “Parameter Usage Vocabulary” codes are to be included in the aggregated parameter 3. Providing this information to the aggregation software 4. Aggregating the data
  4. 4. • Two fold: •Develop semantic aggregation work from other projects •Expose the underlying semantic model beneath the “BODC Parameter Usage Vocabulary (P01)”
  5. 5. • RDF/XML driver file always accessible from the URL of the aggregation parameter • Application software could either call the URL in real time or cache the knowledge base • Governance simply(!) supplies agreed aggregation names and their mappings to P01 • BODC keeps governance informed of additions to P01 so mappings can be kept up to date. http://vocab.nerc.ac.uk/collection/P35/current/
  6. 6. Latitude Depth Temperature Salinity Sea Water Density Calculation http://netmar.nersc.no
  7. 7. Latitude Depth Temperature Wave period Sea Water Density Calculation http://netmar.nersc.no
  8. 8. Concentration of tributyltin cation {tributylstannyl TBT+ CAS 36643-28-4} per unit dry weight of biota {Mytilus galloprovincialis (ITIS: 79456: WoRMS 140481) [Subcomponent: flesh]} http://vocab.nerc.ac.uk/collection/P01/current/MMUSDTBT/
  9. 9. Concentration of tributyltin cation {tributylstannyl TBT+ CAS 36643-28-4} per unit dry weight of biota {Mytilus galloprovincialis (ITIS: 79456: WoRMS 140481) [Subcomponent: flesh]}
  10. 10. {"measurement":"Concentration", "substance": { "primaryName":"tributyltin cation", "synonym":["tributylstannyl","TBT+"], "CAS":"36643-28-4"}, "measurementMatrixRelationship":"per unit dry weight of the", "matrix":"biota", "organism": { "taxon":"Mytilus galloprovincialis", "aphiaID":"140481", "name":"unspecified ", "gender":"unspecified", "stage":"unspecified", "part":"flesh", "specifics":"unspecified"}, "technique":"unspecified", "definition":"Unavailable"}
  11. 11. MDMAP014 ALKYSPTX PHXXPR01 TCO2C1TX Measurement Concentration Total alkalinity pH Concentration Substance carbon (total inorganic) {TCO2} n/a n/a carbon (total inorganic) {TCO2} Relationship per unit mass of the per unit volume of the per unit volume of the per unit mass of the Matrix water body [dissolved plus reactive particulate phase] water body water body water body [dissolved plus reactive particulate phase>0.2um] Analysis n/a spectrophotometry pH electrode
  12. 12. P01 URI Marine Species S25 URI
  13. 13. Substance Or Taxon Property Kind Marine Species P01 URI S25 URI
  14. 14. Substance Or Taxon Property Kind P01 URI#organism #substance ChEBIMarine Species
  15. 15. Substance Or Taxon Property Kind Matrix Technique P01 URI#organism #substance #matrix #technique ChEBIMarine Species https://github.com/adamml/semantic_model
  16. 16. • Easily integrated into software • Ocean Data View • SISSVoc • Drupal • Fits the Linked Data model • Which we’ve been exploring with: • Biological & Chemical Data Management Office • Rolling Deck to Repository • and others http://odv.awi.de/ https://www.seegrid.csiro.au/wiki/Siss/SISSVoc http://linked.bco-dmo.org/ http://linked.rvdata.us/
  17. 17. Journal of Ocean Technology 8(3):7-12 https://github.com/adamml/LinkedOceanDataCloud
  18. 18. • NERC Vocabulary Server • Existing NVS uses allow for semantic aggregation of data • But lacking ability to discover which concepts can be marked up • This will be achieved by exposing the underlying semantic model • Collaboration through Ocean Data Interoperability Platform (ODIP) • Compatible with CSIRO work rkl@bodc.ac.uk & alead@bodc.ac.uk

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