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1G , Interoperability, and GeoSciML

1G , Interoperability, and GeoSciML. Boyan Brodaric, Geological Survey of Canada, Ottawa Interoperability Work Group, IUGS-CGI . Acknowledgements IUSG-CGI Interoperability Work Group Canada : Eric Boisvert, Boyan Brodaric (GSC) UK: Tim Duffy, John Laxton, Marcus Sen (BGS)

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1G , Interoperability, and GeoSciML

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  1. 1G, Interoperability, and GeoSciML Boyan Brodaric, Geological Survey of Canada, Ottawa Interoperability Work Group, IUGS-CGI

  2. Acknowledgements • IUSG-CGI Interoperability Work Group Canada: Eric Boisvert, Boyan Brodaric (GSC) UK: Tim Duffy, John Laxton,Marcus Sen (BGS) US: Bruce Johnson (USGS), Steve Richard (Arizona) France: Jean-Jacques Serrano, Dominique Janjou, Christian Bellier, Francois Robida (BRGM) Sweden: Lars Stolen, Jonas Holmberg, Thomas Lindberg (SGU) Australia: Simon Cox (CSIRO), Bruce Simons, Alistair Ritchie (GeoScience Victoria), • Ollie Raymond, Lesley Wyborn, Dale Percival (Geoscience Australia)

  3. Outline • Web mapping approaches • Levels of data interoperability • Demo

  4. Two Approaches to Web Geology Maps • Atlas (Geologic Cartographic System): mosaic of geologic map images • GIS (Geologic Information System): collection of geologic map data

  5. Option 1: web ATLAS • purpose: communication • content: picture, text, URL • function: view only • standard: datasystems

  6. optional optional • Option 2: web GIS • purpose: science, policy • content: mapdata • function: view, query, symbolize, download • standard: datasystems, data structure, data content

  7. Map System 1 Map System 2 Integrated Map scientific Scientific Interpretation (Geologist) scientific semantic Data Content (Ontology) semantic GIS schematic Data Structure (GeoSciML) schematic syntax Data Language (GML) syntax Atlas systems Data Services (WMS, WFS, WCS) systems Levels of Map Data Interoperability

  8. but: heterogeneous structure, content, interpretation from www.GEONgrid.org • Systems Interoperability • aligning data system interfaces (web services) • STANDARD DATA INTERFACES • to different data systems • e.g. open geospatial web services (OGC)

  9. Schematic Interoperability • aligning heterogeneous data structures • STANDARD SCHEMA • for data transfer from www.GEONgrid.org • but: heterogeneous data content, interpretation

  10. Semantic Interoperability • aligning heterogeneous definitions for data content Era Eon Period Series from www.GEONgrid.org • but: heterogeneous interpretation at map borders • STANDARD DEFINITIONS • data content: rock types, time scale, … • data schema, metadata

  11. Scientific Interoperability • aligning heterogeneous scientific interpretations from www.GEONgrid.org • but: done by geologists, not computers (… for now?) • Differences in: • geometry • geohistory • description • classification

  12. Example of Schematic Interoperability • GeoSciML Testbed 2 IUGS-CGI Interoperability Work Group (IWG) - Use open standards for system & syntax (WxS,GML) - Develop standard schema for data exchange (GeoSciML) - Demonstrate the need for semantic standards - Three use-cases: view&query, download, symbolize

  13. Canada WMS WFS GSC schema GeoSciML USA WMS WFS USGS schema GeoSciML GML Client France WMS WFS BRGM schema GeoSciML GeoSciML UK BGS schema WMS WFS GeoSciML Sweden GeoSciML SGU schema WMS WFS Australia GA schema WMS WFS • Example of Schematic Interoperability • GeoSciML Testbed 2 • multiple viewers • custom tools • standard interface • custom translator • one output data format • many databases • (ESRI, Oracle,shp, …) • local data control

  14. Use-case 1: view map & query one object

  15. Use-case 2: select objects and download

  16. Use-case 3: symbolize by rock type, age

  17. Some questions for 1G: • Atlas or GIS or hybrid? • Level of interoperability? • Leverage GeoSciML Testbed 2? GeoSciML Testbed 2 demonstration on Friday!

  18. END Demo

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