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GEON – Geosciences Network

GEON – Geosciences Network. Ashraf Memon Chief Software Engineer (GEON project) San Diego Supercomputer Center. GIS Map Integration and 3D Volume Registration and Access. Summary. Science Question and Story Path towards answer Data Registration (GEON Registration)

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GEON – Geosciences Network

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  1. GEON – Geosciences Network Ashraf Memon Chief Software Engineer (GEON project) San Diego Supercomputer Center GIS Map Integration and 3D Volume Registration and Access www.geongrid.org

  2. Summary • Science Question and Story • Path towards answer • Data Registration (GEON Registration) • Ontology Annotation (GEON Annotation) • Data Search (Geon Search) • Collaboration (GEON Workspace) • Integration (Integration CartTM) • Scenario for non-hosted data • 3D volume registration, search, access and visualization • Questions www.geongrid.org

  3. Science Question Display rocks of age “Mesozoic” in the “Rocky Mountain” region in United State Datasets from different data providers Graduate Student www.geongrid.org

  4. GEON Data Registration System • Hosted Local Data Reference Catalog Store Data Data Registration System Data Repository Data Provider / Contributor • Non Hosted Data Remote Data Reference Reference Data Registration System Catalog Reference Contributor GEON Data Registration www.geongrid.org

  5. Ontologies and Data Registration • Ontology • Is a collection of well defined terms, which belong to a particular domain. • Shows relations between these terms. • Makes data search and query intelligent by adding a layer of indirection • GEON Data Annotation • Data Registration • Data–Ontology Annotation Dataset USGS Geology Time Scale Ontology Mesozoic Item Detail Level Jr. Tri Jurassic Cretaceous Triassic Jurr Global Legend #4DB47E #7EC31C #67C387 www.geongrid.org

  6. Domain Knowledge Ontologies Arizona Dataset to Ontology Registration (Ontology Annotation) www.geongrid.org

  7. GEON Search Keyword References Data Repository Search System Researcher Local Data Remote Data GEON Search www.geongrid.org

  8. Portal Snapshot (GEONSearch-Basic) www.geongrid.org

  9. Portal Snapshot (GEONSearch-Advanced) www.geongrid.org

  10. GEON Workspace myGEON • Workspace References Integrate Render Query Catalog Workbench System Researcher • Collaboration References Query Render Integrate Catalog Share Workbench System Researcher / Collaborators www.geongrid.org

  11. GEON Workspace (MyGEON) www.geongrid.org

  12. Other distributed apps Kepler Client Access (via web services) myOntology myData Search condition(s) keyword spatialtemporalconcept flythrough (google earth) User actions add delete integrate visualize metadata metadata GEONRegistration GEONsearch GEONworkbench GEON Workspace (user) GEON Catalog File Storage (SRB) Log GEONmiddleware external services Gazetteer, DLESE, … Geologic Age, Chronos, … Registration/Search/myGEON Machinery User Access (via Portal) www.geongrid.org

  13. Issues and Solution • Heterogeneities • Technology • Syntactic • System • Conceptual • Semantic Difference • Resolution (Integration Cart TM) • Technology • Web Services • Conceptual • Ontologies and semantic annotation www.geongrid.org

  14. Syntactic and Semantic Differences www.geongrid.org

  15. www.geongrid.org

  16. Ontology Service Knowledge Representation Ontology Engine Mapping Services Mapping ArcIMS Webservices Middleware Architecture Geon Dataset Ids GEONSearch/Compositon Portlet Color – Value Map Gridsphere • Dataset Ids to Dataset Names • Dataset Ids to Ontology Ids • Ontology Ids to Ontology Names • Ontology Ids to Ontology Concepts Generate Map GEON Metadata Catalogue Download Datasets SRB www.geongrid.org

  17. Composite Thematic Maps www.geongrid.org

  18. Select rocks of age “Mesozoic” in the states in “Rocky Mountain” region Summary of Map Integration www.geongrid.org

  19. Scenario for non-hosted data • Datasets exposed using OGC’s WMS/WFS standards. • Ontology based searching on the map layers. • Ontology based querying of datasets behind maps. • Queries can be saved in the user’s work space. • Generation of integrated mapss. www.geongrid.org

  20. Registration Architecture • WMS URL(s) • ADN Metadata • RegistrationOntology Name (Optional) GetCapabilities WMS Server WMS Registration Porlet GetCapabilities Compile • WMS URL • ADN metadata • Ontology Name • Service Envelope • WMS Version Supported • Layer Names • Layer Styles • Layer Projections • Layer Envelope Ontologies and Concepts WMS Server SRB REGISTER ADN Metadata GEON Metadata Catalogue REGISTER www.geongrid.org

  21. Ontology Service Knowledge Representation Ontology Engine WMS/WFS Mapping Webservices Middleware Architecture Geon Dataset Ids GEONSearch/Compositon Portlet Gridsphere • Dataset Ids to WMS Layer Names • Dataset Ids to Ontology Ids • Ontology Ids to Ontology Concepts Query and Render Map GEON Metadata Catalogue www.geongrid.org

  22. 3D volume registration, search access and visualization • UseCase • “Searching, Accessing, Integrating, and Visualizing Distributed Volume Data” – (Courtesy: Chuck Meertens) • Specific Example: Searching, Accessing, Integrating and Visualizing distributed volume data stored in netCDF format and/or served on openDAP server. Performing these tasks through GEONgrid Portal. www.geongrid.org

  23. Working in the GEON Portal: GEON Search with constraints Search for Resources Current Types: ASCII CUAHSI Data GMT Raster GeoTiff Relational Database Shapefile Tool WMS Service Web Service Handle 4-D Data: netCDF OPeNDAP Search Constraints: Metadata Relation, Type, Subject, Keyword Spatial Coverage Temporal Coverage Ontology/Concept Relation Sample search for: Resource Type - “Relational Database” Keyword - “GPS” (Courtesy: Chuck Meertens) www.geongrid.org

  24. Users view • GEON Portal • Data/Model • Registration • Data Search / • Discovery Volume Data (ascii grid or netCDF) Data Data Contributor GEON Query & Data Preview Thredds -Catalog -Digital Library Metadata Raw Data Processed Data User Contributed “Concepts” Data User Data access • UNAVCO GEON PoP • Data/Metadata Server Node • Data Conversion Webservice Metadata Access www.geongrid.org

  25. Data Registration Architecture OPeNDAP Register OPeNDAP URL (URL, ADN, FGDC) Register netCDF (URL, ADN, FGDC) Register xidv (.xidv, ADN, FGDC) Data Registration Service User Machine .nc .nc .xidv OPeNDAP URL OPeNDAP URL THREDDS Archival adn WCS SRB fgdc THREDDS Data Server HPSS GEON Catalog www.geongrid.org

  26. Search, Access and Visualization Webstart (.jnlp, ixidv) User Machine Download, OPeNDAP, WCS, JPG Data Integration And Visualization Service .jnlp(.xidv) adn fgdc .nc Tools Repository OPeNDAP URL GEON Catalog OPeNDAP URL THREDDS wms WCS Tools THREDDS Data Server OPeNDAP URL www.geongrid.org

  27. Acknowledgement • NSF Grant No. 0225673 (GEON) www.geongrid.org

  28. Questions? More Information amemon@sdsc.edu 1-858-822-0017 www.geongrid.org www.geongrid.org

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