® 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
OGC ® Agenda Introduction Use Cases Conceptual Model Logical Model XML encoding Use case implementations Report Next Steps Copyright © 2015 Open Geospatial Consortium
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: tyExperiment2http://external.opengis.org/twiki_public/HydrologyDWG/GroundwaterInteroperabili tyExperiment2 Copyright © 2015 Open Geospatial Consortium
OGC ® GWML2 Use Cases Five use cases identified for testing: –Commercial - find water wells, estimate cost of water supply well –Policy - meet EU Water Framework Directive requirements –Environmental - assess risks to groundwater dependent ecosystems –Scientific - determine flow of groundwater via modeling software –Technologic – map GWML2 to existing models Copyright © 2015 Open Geospatial Consortium
OGC ® GWML2 Conceptual Model Consolidated Entity List: 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: Model Comparison: Comparisonhttp://external.opengis.org/twiki_public/HydrologyDWG/GWIE2-Model- Comparison Copyright © 2015 Open Geospatial Consortium
OGC ® GWML2 Logical Model UML-GML representation of Conceptual 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 –Other implementations deferred (e.g. JSON, RDF) …until SWG? Copyright © 2015 Open Geospatial Consortium
OGC ® XML encoding – items of note SWE Data Record used by lithology and stratigraphy logs –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
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
OGC ® IE Report status GWML2 Draft specification document prepared 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
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: tyExperiment2http://external.opengis.org/twiki_public/HydrologyDWG/GroundwaterInteroperabili tyExperiment2 Copyright © 2015 Open Geospatial Consortium