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IC GS

J. Broome, Mar. 2007

Introduction to the Informatics and Data Aspects

John Broome (Canada)

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Contents

1. Requirements analysis

2. Geological map data

3. Standards/Technology

4. Architectures

5. What are the challenges?

6. Summary

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A project to make web-accessible the best available geological map data worldwide

at a scale of about 1:1 million, as a Geological Survey contribution to the

International Year of Planet Earth

What is OneGeology?

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A project to make web-accessible the best available geological map data worldwide

at a scale of about 1:1 million, as a Geological Survey contribution to the

International Year of Planet Earth

What is OneGeology?

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Contents

1. Requirements analysis

2. Geological map data

3. Standards/Technology

4. Architectures

5. What are the challenges?

6. Summary

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Requirements Analysis #1What are the technical requirements of OneGeology?

1. Receive and integrate diverse geological coverages.

2. Manage digital map data and metadata

3. Deliver meaningful and consistent geological map data online.

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Requirements Analysis #1What are the technical requirements of OneGeology?

1. Access and integrate diverse geological coverages.

2. Manage digital map data and metadata

3. Deliver meaningful and consistent geological map data online.

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Requirements Analysis #1What are the technical requirements of OneGeology?

1. Access and integrate diverse geological coverages.

2. Manage digital map data and metadata

3. Deliver meaningful and consistent geological map data online.

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Requirements Analysis #1What are the technical requirements of OneGeology?

1. Access and integrate diverse geological coverages.

2. Manage digital map data and metadata

3. Deliver meaningful and consistent geological map data online.

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Requirements Analysis #2What are other requirements of OneGeology?

1. Accommodate participants with differing technical capabilities and resources.

2. Transfer technology and standards know-how.

3. Be sustainable for the future.

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Requirements Analysis #2What are other requirements of OneGeology?

1. Accommodate participants with differing technical capabilities and resources.

2. Transfer technology and standards know-how.

3. Be sustainable for the future.

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Requirements Analysis #2What are other requirements of OneGeology?

1. Accommodate participants with differing technical capabilities and resources.

2. Transfer technology and standards know-how.

3. Be sustainable for the future.

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Requirements Analysis #2What are other requirements of OneGeology?

1. Accommodate participants with differing technical capabilities and resources.

2. Transfer technology and standards know-how.

3. Be sustainable for the future.

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Contents

1. Requirements analysis

2. Geological map data

3. Standards/Technology

4. Architectures

5. What are the challenges?

6. Summary

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Geological Map DataHow will the data delivered by OneGeology be organized and formatted ?

1. Image format : • Raster images• paper map scans

2. Vector Format:• Geological units : polygons & attributes• Faults : vectors/lines & attributes• locations : points & attributes

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Workshop Consultation ResultsWhat data/maps do workshop participants have ?

Only paper maps available 11%

Raster data available 52%

Vector data available 72%

Fees charged for maps/data 25%

Vector data available online 28%

Raster data available online 35%

(accuracy +/- 15%)

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Workshop Consultation ResultsWhat data/maps do workshop participants have ?

Only paper maps available 11%

Raster data available 52%

Vector data available 72%

Fees charged for maps/data 25%

Vector data available online 28%

Raster data available online 35%

(accuracy +/- 15%)

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Workshop Consultation ResultsWhat data/maps do workshop participants have ?

Only paper maps available 11%

Raster data available 52%

Vector data available 72%

Fees charged for maps/data 25%

Vector data available online 28%

Raster data available online 35%(accuracy +/- 15%)

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Contents

1. Requirements analysis

2. Geological map data

3. Standards/Technology

4. Architectures

5. What are the challenges?

6. Summary

S

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Standards/Technology

1. The technology is available.standard-based, open vs. commercial

2. Standards are essential for understanding & interoperability 1. Geoscience standards: Age?, Lithology?,

Stratigraphy?2. Data model < = > Conceptual Geology model3. Exchange Formats: OGC, GML, GeoSciML? 4. Online access: WMS, WFS, WCS, etc. 5. Terminology : multiple languages?

Formats, models, systems, projections, hardware, software, etc ...?

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“Schematic interoperability” means:

• This approach avoids the requirement to agree upon a single interpretation and legend and will allow delivery of geological coverage for any area of the world.

• However: OneGeology will likely contain national

"boundary faults" caused by data not being harmonized.

Data in a common data format and structure without harmonizing the content and interpretation between territories.

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Contents

1. Requirements analysis

2. Geological map data

3. Standards/Technology

4. Architectures

5. What are the challenges?

6. Summary

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ArchitecturesWhere will the data flow from the source to the user and how will it be managed ?

Some Options :

a) Distributed model

b) Centralized model

c) Hybrid model

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Architecture Models: 3 parts

OneGeology Data

Delivery

Geology Coverage

Data Sources

OneGeology Portal

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Links and Translation

S = standard OneGeology online data transfer/access

OneGeology Portal

Geology Coverage

Data Sources

OneGeology Data Access

S

Translation

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OneGeology Portal

Geology Coverage

Data Sources

OneGeology Data Access

Translation

S

Access to participant data/maps

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Access to Participant Data/MapsHow nations provide OneGeology with access to their data will depend on the Architecture model selected.

Options:

a) Scan of paper mapb) Raster map c) Vector map file (ESRI, Intergraph, etc.)d) GeoSciML filee) Online map service (WMS, WFS, etc. )f ) ???????????????

(2)OneGeology

Data Management

(3)Geology

Coverage Data

Sources

(1)OneGeology

Data Access

Translation

S

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OneGeology Portal

Geology Coverage

Data Sources

OneGeology Data Access

Translation

S

Data Delivery to Users

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Data Delivery to UsersHow will OneGeology deliver geological information to the world?

Options:

1. A searchable on-line catalogue of geology maps/data with links to data/images?

2. Downloadable/viewable images of geology ?3. Downloadable/viewable geology vector files ?4. Web data services (WMS, WFS) using a

standard format/structure ? (GeoSciML?)

OneGeology Data

Management

Geology Coverage

Data Sources

OneGeology Data Access

Translation

S

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a) Distributed Architecture ModelParticipants manage their data locally and make it accessible online for delivery through the OneGeology Web Server

USER

WEB SERVER

WEB SERVER

WEB SERVER

S

S

S

S

S

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b) Centralized Architecture ModelParticipants submit their data for loading into a OneGeology Database which delivers it online through the OneGeology Web Server.

USER

1G DATABASE

delivery

SS

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c) Hybrid Architecture Model Data are managed either locally or in the OneGeology Database for delivery via the OneGeology Web Site.

USER

1G DATABASE

delivery

SS

WEB SERVER

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Contents

1. Requirements analysis

2. Geological map data

3. Standards/Technology

4. Architectures

5. What are the challenges?

6. Summary

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7) What are the technical challenges?What challenges must OneGeology address ?

1. Participants with a wide range of know-how and resources.

2. Integration of maps/data with very different format, content, and structure.

3. Delivering geological information that can be understood by non-specialists from highly technical data.

4. Establishment of dependable systems that deliver OneGeology data in real time.

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Contents

1. Requirements analysis

2. Geological map data

3. Standards/Technology

4. Architectures

5. What are the challenges?

6. Summary

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SummaryKey points to remember ?

The proposed OneGeology technical approach will:

• Accommodate the needs of all participants.• Deliver structurally-consistent geological data online.• NOT require scientific harmonization of geology.• Place importance on the transfer of technology.• Allow participants to provide access to their data in

whatever form they have.• Technology is available to meet OneGeology

requirements.