GeoSciML: Enabling the exchange of geological map data DEPARTMENT OF PRIMARY INDUSTRIES GeoSciML: a...

GeoSciML: Enabling the exchange of geological map data

DEPARTMENT OFPRIMARY INDUSTRIES

GeoSciML: a geoscience exchange language

GeoSciML: enabling the exchange of geological map data

Bruce Simons,

GeoScience Victoria




Co-authorsEric Boisvert – Geological Survey of CanadaBoyan Brodaric – Geological Survey of CanadaSimon Cox – CSIROTim R. Duffy – British Geological SurveyBruce R. Johnson – US Geological Survey John L. Laxton – British Geological SurveySteve Richard – Arizona Geological Survey/USGS

AcknowledgementsAlistair Ritchie – GeoScience VictoriaOliver Raymond – Geoscience AustraliaRobyn Gallagher – Queensland Geological Survey




Geological map interoperability via web services

Developing a geoscience GML data format standard

Testing the standard Public release and evaluation

Outline




Motivation - Interoperability

USA

Canada

availability of open geospatial technologies (OGC, ISO)

commitment to these standards

Europe

North America

AsiaAustralia

Federal NT

SA

WA

NSWQld

Tas.Victoria

Japan

KoreaFrance

SwedenCzech

Finland

NetherlandsPoland

UK

GermanyDenmark

“the ability of software and hardware on different machines from different vendors to share data”




Victoria

South Australia

Schematic and semantic map data heterogeneity

synonomypolysemy

geological age

era period series

rock type

volcanic

semantic heterogeneity

semantic heterogeneity




Victoria

South Australia

Schematic and semantic map data heterogeneity

rock type

schematic heterogeneity




systems

syntax

schematic

semantic

interoperability

GeoSciML (data structure)

Ontology (data content)

Geoscience

GML (data language)

WFS, WMS, … (data systems)

OpenGIS

Interoperability in OpenGIS




Objectives

GML

Client

WMS WFS

WMSWFS

WMSWFS

WMS WFS

GeoSciML

GeoSciML

GeoSciML

GeoSciML

GA

BGS

USGS

GSC

USGS

schema

BGS

schema

GA

schema

GSC

schema

a standard GML schema for geological data





conduct a multi-country testbed

GML

Client

WMS WFS

WMSWFS

WMSWFS

WMS WFS

GeoSciML

GeoSciML

GeoSciML

GeoSciML

GA

BGS

USGS

GSC

USGS

schema

BGS

schema

GA

schema

GSC

schemaCanada

USA

UK

Australia

Objectives

Immature clients(GML 2 vs GML 3)





conduct a multi-country testbed demonstrate need for data content

standards

GML

Client

WMS WFS

WMSWFS

WMSWFS

WMS WFS

GeoSciML

GeoSciML

GeoSciML

GeoSciML

GA

BGS

USGS

GSC

USGS

schema

BGS

schema

GA

schema

GSC

schema

Objectives




Approach—GeoSciML Design

ChronostratigraphicUnit

BiostratigraphicUnitLithodemicUnit

LithostratigraphicUnit

AllostratigraphicUnit PedostratigraphicUnit

MagnetostratigraphicUnit

LithotectonicUnitPedoderm GeomorphologicUnit

GUPRelationRole

or

CompoundMaterial

GUPRelation

Proportion

GURole

GeologicUnitPart

<<IsA>>

0..*

2..n

0..*

2..n1..11..1

1..11..1

Rank

WeatheringCharacter

OutcropCharacter

GUGenesis

GeologicAge

Extent

Morphology

Color

MetamorphicGrade

GeologicUnit

<<IsA>>

0..10..1

0..10..1

0..10..1

0..*

2

0..*

2

0..*0..1

0..*0..1

1..11..1

0..10..1

0..*0..*

0..10..1

GeologicProcess

0..*

0..*

0..*

0..*

0..*

0..*

0..*

0..*

cd GeologicUnit

AbstractFeature

«FeatureType»CGI_Top::GeologicFeature

+ age: GeologicAge [1..*]+ physicalProperty: CGI_PhysicalDescription [0..*]+ purpose: DescriptionPurpose = instance

«FeatureType»GeologicUnit

+ bodyMorphology: CGI_TermValue [0..*]+ exposureColor: CGI_TermValue [0..*]+ grossChemistry: CGI_TermValue [0..1]+ grossGenesisTerm: CGI_TermValue [0..*]+ outcropCharacter: CGI_TermValue [0..*]

«FeatureType»LithodemicUnit

«FeatureType»LithologicUnit

+ metamorphicGrade: CGI_Term [0..*]+ rank: ScopedName+ structurePresent: CGI_TermValue [0..*]+ weatheringCharacter: CGI_TermValue [0..*]

«FeatureType»LithostratigraphicUnit

+ beddingPattern: CGI_TermValue [0..*]+ beddingStyle: CGI_TermValue [0..*]+ beddingThickness: CGI_Value [0..*]+ unitThickness: CGI_Numeric [0..*]

UML to GML Conceptual

GML schema

Logical




International consensus• CGI-IUGS Data Model Working Group

Re-use, revise and extend existing standards• Geography Mark-up Language (GML)• ISO, OGC, NADM, XMML

Approach—Developing a Standard




November 2003 15 countries represented established the CGI-IUGS

working group created three task groups:

Activities: Data Model Working Group

Data Interchange Task Group: develop the schemaTestbed Task Group: test the schemaVocabulary Task Group: identify classifications




reviewed existing models defined initial scope

geological units, earth materials, structures, boreholes

demonstrated Testbed 1 – sharing boreholes

initiated Testbed 2 – sharing geological maps

finalised GeoSciML 1.1 identified required

classifications

Activities: Data Model Working Group




ParticipantsCanada, USA, UK, France, Australia,

SwedenUse cases

display map, query one feature, return attributes in GeoSciML

query several map features, return GeoSciML file for download

reclassify map features based on GeoSciML GeologicAge or Lithology

Activities: Testbed 2




<LithodemicUnit gml:id="GSV200"> <gml:description>Hornblende-biotite-pyroxene syenite: grey to pale orange, medium to coarse grained, equigranular </gml:descri <gml:name>MacFarlane Syenite</gml:name> <purpose>typicalNorm</purpose> <age> <GeologicAge> <event> <CGI_TermValue> <value codeSpace="http://www.iugs- cgi.org/geologicAgeEventVocabulary">intrusion</value> </CGI_TermValue> </event> <value> <CGI_TermRange> <lower> <CGI_TermValue> <value codeSpace="http://www.iugs-cgi.org/geologic AgeVocabulary" >Triassic</value> </CGI_TermValue> </lower>

Use Case 1—Display and Query Feature

display map query feature

return GeoSciML




Use Case 2—Multiple Feature Download

select area

download GeoSciML




Use Case 3—Reclassify by Age or Lithology

AGE

LITHOLOGY

RECOLOUR MAP BY:

RECOLOUR MAP BY APPLYING IUGS CLASSIFICATION SCHEME:




Data Content Standards




Future Activities September 2006, Liege,

Belgium GeoSciML

Session/Workshop (IAMG06)

Testbed 2 wrap-up acceptance as CGI-IUGS

standard GeoSciML 2.0




international collaboration for standard geological map data format

an application using international geospatial standards

derived from pre-existing data models to be released as CGI-IUGS standard

in 2006 multi-country testbed currently in

progress

Summary




Questions?

Web sites Data Model Working Group homehttp://www.bgs.ac.uk/cgi_web/tech_collaboration/data_model/data_model.html

Data Model Working Group twiki

https://www.seegrid.csiro.au/twiki/bin/view/CGIModel/

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