1. ® Sponsored by GroundWater ML 2 IE (GW2IE) GroundWater ML 2 IE (GW2IE) Progress Report 95th OGC Technical Committee Boulder, Colorado USA Bruce Simons 3 June 2015 Copyright © 2015 Open Geospatial Consortium

2. OGC ® Agenda Introduction Use Cases Conceptual Model Logical Model XML encoding Use case implementations Report Next Steps Copyright © 2015 Open Geospatial Consortium

3. OGC ® GWML2 IE Introduction Objectives: –Develop a GML compatible groundwater information model and encoding from existing international initiatives (GWML1, INSPIRE); –Prepare an engineering report as a draft OGC data specification. Participants: –GSC-NRCan, USGS, DG-JRC, BRGM, CSIRO, BoM, GNS, SalzburgUni, FedUni, GSG June 2012 Reading, UK Kick-off meeting: –38 tele-meetings (1 face-to-face, Vienna May 2014); OGC Wiki Documentation: http://external.opengis.org/twiki_public/HydrologyDWG/GroundwaterInteroperabili tyExperiment2http://external.opengis.org/twiki_public/HydrologyDWG/GroundwaterInteroperabili tyExperiment2 Copyright © 2015 Open Geospatial Consortium

4. OGC ® GWML2 Use Cases Five use cases identified for testing: –Commercial - find water wells, estimate cost of water supply well http://external.opengis.org/twiki_public/HydrologyDWG/UseCase1 –Policy - meet EU Water Framework Directive requirements http://external.opengis.org/twiki_public/HydrologyDWG/UseCase2 –Environmental - assess risks to groundwater dependent ecosystems http://external.opengis.org/twiki_public/HydrologyDWG/UseCase3 –Scientific - determine flow of groundwater via modeling software http://external.opengis.org/twiki_public/HydrologyDWG/UseCase4 –Technologic – map GWML2 to existing models http://external.opengis.org/twiki_public/HydrologyDWG/UseCase5 Copyright © 2015 Open Geospatial Consortium

5. OGC ® GWML2 Conceptual Model Consolidated Entity List: http://external.opengis.org/twiki_public/HydrologyDWG/Gwml2FinalFeaturesList Groundwater features: –GW_HydrogeoUnit, GW_HydrogeoVoid, GW_FluidBody; –GW_Constituent, GW_AquiferTest; –GW_Flow, GW_FlowSystem; –GW_Well, GW_Spring, GW_MonitoringSite, Borehole (construction); –GW_ManagementArea (aligned with WFD/INSPIRE) Documentation: http://external.opengis.org/twiki_public/HydrologyDWG/GWML2-CM-Model Model Comparison: http://external.opengis.org/twiki_public/HydrologyDWG/GWIE2-Model- Comparisonhttp://external.opengis.org/twiki_public/HydrologyDWG/GWIE2-Model- Comparison Copyright © 2015 Open Geospatial Consortium

6. OGC ® GWML2 Logical Model UML-GML representation of Conceptual model http://external.opengis.org/twiki_public/HydrologyDWG/GWML2-UML-Model –6 application schema (GWML2-Main, Well, WellConstruction, Flow, Constituent, AquiferTest) –External dependencies: ISO19115, 19107, 19108, 19103, 19156, 19123, OGC SWE –Extends: Observations & Measurements (O&M), GeoSciML (v3.2), InterleavedCoverages –Cardinalities all [0..x] (cf GeoSciML, ANZSoilML) –GML XML schema implementation http://ngwd-bdnes.cits.nrcan.gc.ca/service/gwml/schemas/2.1/{.xsd} –Other implementations deferred (e.g. JSON, RDF) …until SWG? Copyright © 2015 Open Geospatial Consortium

7. OGC ® XML encoding – items of note SWE Data Record used by lithology and stratigraphy logs http://external.opengis.org/twiki_public/HydrologyDWG/GwmlSweDataRecord –Defined GWML2 data records for stratigraphy and lithology Could be extended to other downhole logs such as geophysical, geochemistry, geochronology logs –Makes the WFS verbose, but explicit O&M used directly for logical model fragments –Fluid, void, hydrogeounit and flow properties, geology logs –Encoding patterns described in engineering report Sampling Features –Specialized by GW_AquiferTest, GW_Well, Copyright © 2015 Open Geospatial Consortium

8. OGC ® Use Case Implementations Use Case 1 (water wells, aquifers) –Planned Services: WFS, WMS –Participants: CSIRO-BoM, FedUni, GNS, SalzburgUni, NRCan, BRGM Use Case 2 (management area, groundwater body) –Planned Services: WFS, WMS –Participants: GNS/Z_GIS, BRGM, GSG, INSPIRE Use Case 3 (groundwater body, flow, constituents) –Planned Services: WFS, WMS, SOS –Participants: CSIRO-BoM, FedUni, GNS, SalzburgUni Use Case 4 (modelling tools importing wells, aquifers) –Participants: USGS, GNS, SalzburgUni Use Case 5 (mapping between models) –Participants: NRCan, GSG, CSIRO, BRGM, INSPIRE Copyright © 2015 Open Geospatial Consortium

9. OGC ® IE Report status GWML2 Draft specification document prepared http://external.opengis.org/twiki_public/pub/HydrologyDWG/GroundwaterInteroper abilityExperiment2/GroundWaterML2_v0.3.1_DRAFT.pdfhttp://external.opengis.org/twiki_public/pub/HydrologyDWG/GroundwaterInteroper abilityExperiment2/GroundWaterML2_v0.3.1_DRAFT.pdf Includes –Use cases –Conceptual and logical models –GML/XML encoding rules –Example XML encodings –Implementation results Needs –some diagrams updated –some conformance classes/requirements updated –new instance fragments inserted from existing examples –Implementation results added Copyright © 2015 Open Geospatial Consortium

10. OGC ® Next Steps Finish IE prior to September 2015 HydroDWG –Refine report: technical GWML2 description (CM, LM, XML) –Complete use-case implementations and add results to report Propose/initiate GWML2 SWG at Sept 2015 OGC TC (Nottingham) See wiki for more details on all aspects: http://external.opengis.org/twiki_public/HydrologyDWG/GroundwaterInteroperabili tyExperiment2http://external.opengis.org/twiki_public/HydrologyDWG/GroundwaterInteroperabili tyExperiment2 Copyright © 2015 Open Geospatial Consortium