® Sponsored by Hosted by GroundWater 2 IE GroundWater 2 IE GWML2 96th OGC Technical Committee...

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GroundWater 2 IEGroundWater 2 IEGWML2

96th OGC Technical Committee

Nottingham, UK

Boyan Brodaric and the GW2IE Team

17 September 2015

Copyright © 2015 Open Geospatial Consortium

OGC®

GW2IE Sept 2015 Nottingham / Orleans GW2IE Sept 2015 Nottingham / Orleans

AgendaAgenda

• Introduction• Prior Work• Recent Progress• Next Steps• Wrap-up---------------------------------------------------------------------------------------

• Use-cases• Conceptual Model • Logical Model• XML encoding• Use case implementations• Eng Report

2Copyright © 2015 Open Geospatial Consortium

OGC®


GW2IE IntroductionGW2IE Introduction

• Objectives– Develop and test a GML groundwater information model and

encoding from existing international initiatives (GWML1, INSPIRE)– Prepare an engineering report as a draft OGC data specification

• Participants– 13 initiating agencies: NA, EU, AU, NZ– 9 submitting agencies: NA, EU, AU, NZ E.Boisvert (NRCan), B.Brodaric (NRCan), P.Dahlhaus (FedUni), S.Grellet (BRGM), A.Kmoch

(GNS/UZ), F.Letourneau (NRCan), J.Lucido (USGS), B.Simons (CSIRO/BOM), B.Wagner (GSG)

• Activities– 43 meetings since June 2012 Kick-off (1 in-person, 2014)

• OGC Wiki Documentation– http://external.opengis.org/twiki_public/HydrologyDWG/Groundwater

InteroperabilityExperiment2


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GW2IE Prior WorkGW2IE Prior Work

Pre-OGC TC Boulder (June 2015):•Conceptual Model: complete•Logical Model: complete•XML Examples: significant progress•Use-case Implementations: significant progress•Eng Report: significant progress


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GW2IE Recent ProgressGW2IE Recent Progress

Post-OGC TC Boulder (June 2015):•XML Examples: complete

– Full examples: see GWML2 SVN (https://xp-dev.com/svn/gwml2/Documents/instance/)– Fragments: see GW2IE report

•Use-case Implementations: complete– Five use-cases: successful– Nine agencies: NA, EU, AU, NZ– 14 web services: WMS, WFS, SOS, WPS– 17 change requests

•Eng Report: complete – Release to OGC Portal (01 Sept 2015, OGC 15-082, 175 pp)– Draft GWML2 specification + implementation report– Public release pending approval by HDWG & OGC (under review)


OGC®


GW2IE Next StepsGW2IE Next Steps

• GW2IE Eng Report public release– HDWG: vote at 2015 Annual Workshop (Orleans, 20-23 Sept 2015)– OGC TC: electronic vote of OGC TC following HDWG acceptance– OGC TC: public release via OGC Portal

• Groundwater SWG (GWML2) initiate– HDWG: vote at HDWG session at OGC TC (Nottingham)– OGC TC: request SWG initiation at OGC TC Plenary (Nottingham)– HDWG: develop charter at 2015 Annual Workshop (Orleans)– OGC TC: 3 month public comment then HDWG / OGC approval

vote


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• Discussion

• Vote to initiate SWG

GW2IE Wrap-upGW2IE Wrap-up


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GW2IE Use CasesGW2IE Use Cases

• Five use cases to guide GWML2 design and 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 requirementshttp://external.opengis.org/twiki_public/HydrologyDWG/UseCase2

– Environmental - assess risks to gw dependent ecosystemshttp://external.opengis.org/twiki_public/HydrologyDWG/UseCase3

– Scientific - determine flow of groundwater via gw modeling http://external.opengis.org/twiki_public/HydrologyDWG/UseCase4

– Technologic – map GWML2 to existing info modelshttp://external.opengis.org/twiki_public/HydrologyDWG/UseCase5


OGC®


GWML2 Conceptual ModelGWML2 Conceptual Model

• Technology-neutral conceptualization• Consolidated Entity List

http://external.opengis.org/twiki_public/HydrologyDWG/Gwml2FinalFeaturesList

• Groundwater features– GW_HydrogeoUnit [aquifer, confining bed, basin, aquifer system]– GW_FluidBody, GW_Constituent– GW_HydrogeoVoid– GW_Flow, GW_FlowSystem– GW_Well, GW_Spring, GW_MonitoringSite

• Documentationhttp://external.opengis.org/twiki_public/HydrologyDWG/GWML2-CM-Model

• Model Comparisonhttp://external.opengis.org/twiki_public/HydrologyDWG/GWIE2-Model-Comparison


OGC®


GWML2 Conceptual Model – ‘holey trinity’GWML2 Conceptual Model – ‘holey trinity’

GL_GeologicUnit

GW_HydrogeoUnit

gwUnitMedia: PorosityTypegwUnitRecharge: GW_Recharge [1..*]gwUnitDischarge: GW_Discharge [1..*]gwUnitWaterBudget: GW_WaterBudgetgwUnitVulnerability: GW_Vulnerability [0..*]

GW_UnitFluidProperty

gwHydraulicConductivity: Measurement [1..*]gwTransmissivity: Measurement [1..*]gwStorativity: Measurement [1..*]

GW_FluidBody

gwBodyDescription: char [1..*]gwBodyFlow: GW_Flow [1..*]gwBodyMetadata: GW_Metadata [1..*]gwBodyQuality: BodyQualityType [1..*]gwBodyShape: GeometrygwBodyVolume: MeasurementgwBodyVulnerability: GW_Vulnerability [0..*]

GW_HydrogeoVoid

gwVoidDescription: chargwVoidHostMaterial: EarthMaterial [0..*]gwVoidMetadata: GW_MetadatagwVoidShape: GeometrygwVoidType: PorosityTypegwVoidVolume: Measurement

GW_FluidBodyProperty

gwBodyProperty: gwBodyPropertyTypegwBodyPropertyValue: Measurement

GW_Porosity

gwPorosityType: PorosityTypegwPorosity: Measurement

GW_Yield

gwYieldType: YieldTypegwYield: Measurement

GW_UnitVoidProperty

gwPermeability: Measurement [1..*]

gwYield 1..*

gwBodyProperty1..*

gwPartOfVoid0..1

gwVoidPartOf0..*

gwPorosity 1..*

gwFluidBodyVoid

gwVoidFluidBody 0..1

gwFluidBodyUnit

1..*

gwUnitFluidBody

0..*

gwVoidUnit1..*

gwUnitVoid0..1

gwPartOfBody 0..1

gwBodyPartOf 0..*

• Hydrogeological units host voids; both contain fluid bodies


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GW2IEGW2IE Logical Model Logical Model

• GML, O&M (e.g. OM_Measurement), GeoSciML, WaterML• GML-UML representation of Conceptual model

• http://external.opengis.org/twiki_public/HydrologyDWG/GWML2-UML-Model

– 5 application schema (GWML2-Main, Well, WellConstruction, Flow, Constituent)

– External dependencies:• ISO19115, 19107, 19108, 19103, 19156, 19123, OGC SWE

– Extends: • Observations & Measurements (O&M), GeoSciML (v3.2), InterleavedCoverages

– Adapts:• GWML1 well construction

– Cardinalities all [0..x]

• Significant change request to O&M


OGC®


GeologicUnit

«FeatureType»GW_HydrogeoUnit

«property, voidable»gwUnitDischarge: GW_Discharge [0..*]gwUnitMedia: PorosityTypeTerm [0..1]gwUnitRecharge: GW_Recharge [0..*]gwUnitWaterBudget: GW_WaterBudget [0..1]

«Property»gwUnitProperty: OM_Measurement [0..*]

«property»gwUnitVulnerability: OM_Observation [0..*]

«type»GW_UnitFluidProperty

«property, voidable»gwHydraulicConductivity: OM_Measurement [0..*]gwStorativity: OM_Measurement [0..*]gwTransmissivity: OM_Measurement [0..*]gwYield: OM_Measurement [0..*]

«FeatureType»GW_FluidBody

«property, voidable»gwBodyFlow: GW_Flow [0..*]gwBodyMetadata: MD_Metadata [0..*]gwBodyProperty: OM_Measurement [0..*]gwBodyQuality: BodyQualityTerm [0..*]gwBodyShape: GM_Object [0..1]gwBodyVolume: OM_Measurement [0..1]gwBodyVulnerability: OM_Observation [0..*]

«FeatureType»GW_HydrogeoVoid

«property, voidable»gwVoidHostMaterial: EarthMaterial [0..*]gwVoidMetadata: MD_Metadata [0..1]gwVoidShape: GM_Object [0..1]gwVoidType: PorosityTypeTerm [0..1]gwVoidVolume: OM_Measurement [0..1]

«type»GW_UnitVoidProperty

«property, voidable»gwPermeability: OM_Measurement [0..*]gwPorosity: OM_Measurement [0..*]

gwFluidBodyVoid«property»

0..1

gwVoidFluidBody«property» 0..1

gwPartOfBody«property» 0..1

gwBodyPartOf«property» 0..*

gwFluidBodyUnit«property»

0..*

gwUnitFluidBody«property»

0..*

gwPartOfVoid«property» 0..1

gwVoidPartOf«property» 0..*

gwVoidUnit«property» 0..*

gwUnitVoid«property»

0..1

GWML2 Logical Model – GML specificGWML2 Logical Model – GML specific


OGC®


GWML2 GWML2 XML encodingXML encoding

• developed custom O&M and SWE patterns• O&M Pattern

– Most numeric values for subtypes and provenance (OM_Measurement*)

– Analytical results (waterbody constituents, aquifer properties)– Aquifer test (aquifer properties)

• SWE Data Record: lithology and stratigraphy log • http://external.opengis.org/twiki_public/HydrologyDWG/GwmlSweDataRecord

– Defined GWML2 data records for stratigraphy and lithology• Extend to other downhole logs (geophysical, geochemistry, geochronology)

– WFS coverages verbose, but explicit


OGC®


GWML2 GWML2 XML encoding – Aquifer testXML encoding – Aquifer test

object Specification Diagrams

drawdown1: TimeseriesObservation


Transmissiv ity: OM_Observation

result = XXX

c1: ObservationContext

role = ../def/role/supportObservation



pumpTest: GW_AquiferTest

obs1: GW_Well

obs2: GW_Well

+relatedObservation

+relatedObservation

+relatedObservation

+featureOfInterest

+relatedObservation

+relatedObservation

+relatedObservation

+featureOfInterest

+featureOfInterest

object Specification Diagrams



Transmissiv ity: OM_Observation

result = XXX





pumpTest: GW_AquiferTest

obs1: GW_Well

obs2: GW_Well

+relatedObservation

+relatedObservation

+relatedObservation

+featureOfInterest

+relatedObservation

+relatedObservation

+relatedObservation

+featureOfInterest

+featureOfInterest

Water Table

Pumping Bore

Observation Bore Observation Bore

+procedure

Water Table

Pumping Bore

Observation Bore Observation Bore

+procedure


OGC®


GW2IE ImplementationGW2IE Implementation

• Successful test of GWML2• Use Case 1 (water wells, springs, aquifers)

– BRGM, CSIRO-BoM, FedUni, GNSS/UZ, NRCan, USGS (WFS, WMS)

• Use Case 2 (management area)– CSIRO-BoM, GNSS/UZ (WFS)

• Use Case 3 (groundwater body, flow, constituents)– FedUni, GNS/UZ (WFS, WMS, SOS)

• Use Case 4 (water wells, aquifers, flow, groundwater body)– GNSS/NZ, USGS (WFS, WMS, SOS, WPS)

• Use Case 5 (map: GWML1*, INSPIRE-Hydrogeology, HY_Features*)– BRGM, CSIRO, GSG, NRCan

– * designates incomplete mappingParticipants listed in alphabetical order


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GW2IE Implementation – change requests (17)GW2IE Implementation – change requests (17)


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GW2IE Eng ReportGW2IE Eng Report

• Draft GWML2 specification + Implementation report• Release to public SVN (non-advertised) and OGC Portal

http://xp-dev.com/svn/gwml2/Documents/GroundWaterML2_GW2IE-FinalReport.docx

• Includes– conceptual and logical models – GML/XML encoding rules & tests– example XML encodings– use-cases and implementation results– change requests (issues identified)


OGC®


GW2IEGW2IE

• Discussion• Vote to recommend

public release of report


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