GWML IGC August 10, 2008, Oslo 1 Groundwater Markup Language (GWML) Extending GeoSciML for Groundwater Eric Boisvert Boyan Brodaric Groundwater Program Earth Sciences Sector Natural Resources Canada

GWML IGC August 10, 2008, Oslo 2 GW Data in Canada  Distributed, Uncoordinated Federal depts, provincial depts Municipalities, watershed authorities  Heterogeneous Data content, structure, systems (sensors, dbs)  Moderate volume few aquifers (~30 key) moderate number of water-well records (~1Ms) many temporal water quality readings  Variable quality Completeness, consistency, location

GWML IGC August 10, 2008, Oslo 3  Alberta on-line data  BC on-line data GW Data in Canada

GWML IGC August 10, 2008, Oslo 4 GWML WMS, WFS GML1 GML2 GML3 GML4 GML4 WMS, WFS GW System Interoperability NRCan Applications Standard themes, layers Standard web services: Data registry Data access Data translation FedProvOther Portals: Atlas, ResEau… Tools: Analysis, … Services NGD Data …  National GW Database Architecture

GWML IGC August 10, 2008, Oslo 5 GW Schematic Interoperability GroundWater Markup Language (GWML)  Developed by NRCan  GW data schema required by OGC web services WMS, WFS, WCS, SOS  Extends existing standards for GW data GeoSciML, OGC Observations and Measurements, SensorML  Includes water/hydrogeologic entities water, properties, budgets, aquifers, wells, observations and measurements

GWML IGC August 10, 2008, Oslo 6 GWML and GeoSciML  parts of GWML extend GeoSciML GeologicUnitEarthMaterialPhysicalDescription

GWML IGC August 10, 2008, Oslo 7 UML-GWML Schema Snapshot waterwater propertieswater budget, reservoirsaquiferswells

GWML IGC August 10, 2008, Oslo 8 urn:ogc:feature:gwml:Aquifer:st-mathieu instance Pleistocene XML-GWML Aquifer instance

GWML IGC August 10, 2008, Oslo 9 Demo

GWML IGC August 10, 2008, Oslo 10 Summary  Increased GW data interoperability through SDIs and GWML  GWML extends existing OGC standards to hydrogeology  GWML is a core aspect of the emerging Canadian national GW information system

GWML IGC August 10, 2008, Oslo 11 GWML url

GWML IGC August 10, 2008, Oslo 12 Questions?

GWML IGC August 10, 2008, Oslo 13

GWML IGC August 10, 2008, Oslo 14 Semantic Interoperability  via Ontologies (forthcoming) Data content standards Ontology-enabled schema and content mappings … … … … urn:ogc:feature:gwml:Aquifer:st-mathieu instance Pleistocene

GWML IGC August 10, 2008, Oslo 15 Approach  Approach = data interoperability national coordinated network of GW data providers mandated use of Spatial Data Infrastructure standards and technologies  Expected Benefits increased use of groundwater data: science, policy data and science gaps exposed technologic and knowledge transfer unanticipated 3 rd party portal and tool development

GWML IGC August 10, 2008, Oslo 16 GW Data Interoperability GW Ontology (data content, vocabularies) schematic semantic GWML (data structure) systems syntax GML (data language) WFS, WMS, WCS, … (data systems) Groundwater Community OpenGIS  Levels of GW data interoperability in Spatial Data Infrastructures

GWML IGC August 10, 2008, Oslo 17 Canadian Data Requirements  Web access to GW data  National framework for connecting GW databases  Analysis and modeling tools for decision-making  Education, outreach and aid to regional agencies

GWML IGC August 10, 2008, Oslo 18 Outline  Groundwater data interop. for Canada needs and approaches  Groundwater Markup Language (GWML) development, design, and use

GWML IGC August 10, 2008, Oslo 19 GWML Schema Development </xs:complexType></xs:annotation> <xs:annotation> Physical Schema  XML-GML GML dependent Logical Schema  UML-GML ISO dependent «FeatureType» GeologicUnit HydroStratigraphicUnit «FeatureType» HydrogeologicUnit::Aquifer GeologicUnitAquifer Conceptual Schema  UML (, OWL) Technology independent

GWML IGC August 10, 2008, Oslo 20 Status  GWML draft release publicly available GWML-UML diagrams GWML-GML schema GWML-GML data examples v1 due mid-2008  Dataset standards in progress themes and map layers ontology for GWML schema and GeoSciML content  National GW Information Network have proof-of-concept system operational version due Mar 2009

GWML IGC August 10, 2008, Oslo 21 Self-Identified Users  National Atlases e.g. Atlas of Canada, ResEau, NLWIS  Value-added commercial portals e.g. Panorama (Waypoint Tech.)  Scientists, Professionals e.g. NRCan scientists  Decision-makers e.g. water managers, regional planners, regulators  Educators, Public

GWML IGC August 10, 2008, Oslo 22 Semantic Interoperability Content standards  Short-term: standard themes, layers, features  Long-term: standard data content ThemeLayer (WMS)Feature (WFS) Groundwater Quantity Water WellMonitoring Well Production Well Hydrostratigraphic Unit Aquifer Aquitard

GWML IGC August 10, 2008, Oslo 23 Semantic Interoperability Layer and feature standards  Map Layer = GWML feature type superclass  Feature = concrete GWML feature type «FeatureType» HydroStratigraphicUnit «FeatureTyp... Aquiclude «FeatureType» Aquifer +mediaType: AquiferMediaType «FeatureTyp... Aquitard