® Sponsored by GroundWater ML 2 IE (GW2IE) GroundWater ML 2 IE (GW2IE) Progress Report 95th OGC Technical Committee Boulder, Colorado USA Bruce Simons

®

Sponsored by

GroundWaterGroundWaterMLML2 IE 2 IE (GW2IE)(GW2IE)Progress Report

95th OGC Technical Committee

Boulder, Colorado USA

Bruce Simons

3 June 2015

Copyright © 2015 Open Geospatial ConsortiumCopyright © 2015 Open Geospatial Consortium

OGC®

AgendaAgenda

• Introduction• Use Cases• Conceptual Model • Logical Model• XML encoding• Use case implementations• Report • Next Steps

Copyright © 2015 Open Geospatial Consortium

OGC®

GWML2 IE IntroductionGWML2 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

tyExperiment2


OGC®

GWML2 Use CasesGWML2 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


OGC®

GWML2 Conceptual ModelGWML2 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-Compariso

n


OGC®

GWML2 Logical ModelGWML2 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?


OGC®

XML encoding – items of noteXML 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,


OGC®

Use Case ImplementationsUse 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


OGC®

IE Report statusIE Report status

• GWML2 Draft specification document prepared• http://external.opengis.org/twiki_public/pub/HydrologyDWG/

GroundwaterInteroperabilityExperiment2/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


OGC®

Next StepsNext 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/

GroundwaterInteroperabilityExperiment2


Documents

® Sponsored by GroundWater ML 2 IE (GW2IE) GroundWater ML 2 IE (GW2IE) Progress Report 95th OGC Technical Committee Boulder, Colorado USA Bruce Simons