GEON

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GEON Geosciences Network
GIS Map Integration and 3D Volume Registration
and Access

• Ashraf Memon
• Chief Software Engineer (GEON project)
• San Diego Supercomputer Center

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Summary

• Science Question and Story
• Path towards answer
• Data Registration (GEON Registration)
• Ontology Annotation (GEON Annotation)
• Data Search (Geon Search)
• Collaboration (GEON Workspace)
• Integration (Integration CartTM)
• Scenario for non-hosted data
• 3D volume registration, search, access and
  visualization
• Questions

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Science Question
Display rocks of age Mesozoic in the Rocky
Mountain region in United State
Datasets from different data providers
Graduate Student
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GEON Data Registration
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Ontologies and Data Registration

• Ontology
• Is a collection of well defined terms, which
  belong to a particular domain.
• Shows relations between these terms.
• Makes data search and query intelligent by adding
  a layer of indirection
• GEON Data Annotation
• Data Registration
• DataOntology
• Annotation

Dataset
USGS Geology Time Scale Ontology
Mesozoic
Item Detail Level
Jr.
Tri
Jurassic
Cretaceous
Triassic
Jurr
Global Legend
4DB47E
7EC31C
67C387
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Dataset to Ontology Registration (Ontology
Annotation)
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GEON Search
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Portal Snapshot (GEONSearch-Basic)
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Portal Snapshot (GEONSearch-Advanced)
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GEON Workspace
myGEON

1. Workspace

References
Integrate
Render
Query
Catalog
Workbench System
Researcher

1. Collaboration

References
Query
Render
Integrate
Catalog
Share
Workbench System
Researcher / Collaborators
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GEON Workspace (MyGEON)
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Registration/Search/myGEON Machinery
User Access (via Portal)
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Issues and Solution

• Heterogeneities
• Technology
• Syntactic
• System
• Conceptual
• Semantic Difference
• Resolution (Integration Cart TM)
• Technology
• Web Services
• Conceptual
• Ontologies and semantic annotation

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Syntactic and Semantic Differences
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Architecture
Geon Dataset Ids
GEONSearch/Compositon Portlet
Color Value Map
Gridsphere

1. Dataset Ids to Dataset Names
2. Dataset Ids to Ontology Ids
3. Ontology Ids to Ontology Names
4. Ontology Ids to Ontology Concepts

Generate Map
GEON Metadata Catalogue
SRB
Download Datasets
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Composite Thematic Maps
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Summary of Map Integration
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Scenario for non-hosted data

• Datasets exposed using OGCs WMS/WFS standards.
• Ontology based searching on the map layers.
• Ontology based querying of datasets behind maps.
• Queries can be saved in the users work space.
• Generation of integrated mapss.

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Registration Architecture

1. WMS URL(s)
2. ADN Metadata
3. RegistrationOntology Name (Optional)

GetCapabilities
WMS Server
WMS Registration Porlet
GetCapabilities
Compile
Ontologies and Concepts

1. WMS URL
2. ADN metadata
3. Ontology Name
4. Service Envelope
5. WMS Version Supported
6. Layer Names
7. Layer Styles
8. Layer Projections
9. Layer Envelope

WMS Server
SRB
REGISTER ADN Metadata
GEON Metadata Catalogue
REGISTER
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Architecture
Geon Dataset Ids
GEONSearch/Compositon Portlet
Gridsphere

1. Dataset Ids to WMS Layer Names
2. Dataset Ids to Ontology Ids
3. Ontology Ids to Ontology Concepts

Query and Render Map
GEON Metadata Catalogue
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3D volume registration, search access and
visualization

• UseCase
• Searching, Accessing, Integrating, and
  Visualizing Distributed Volume Data (Courtesy
  Chuck Meertens)
• Specific Example
• Searching, Accessing, Integrating and
  Visualizing distributed volume data stored in
  netCDF format and/or served on openDAP server.
  Performing these tasks through GEONgrid Portal.

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Working in the GEON Portal GEON Search with
constraints
Search for Resources Current Types ASCII CUAHSI
Data GMT Raster GeoTiff Relational
Database Shapefile Tool WMS Service Web
Service Handle 4-D Data netCDF OPeNDAP Search
Constraints Metadata Relation, Type, Subject,
Keyword Spatial Coverage Temporal
Coverage Ontology/Concept Relation
Sample search for Resource Type - Relational
Database Keyword - GPS
(Courtesy Chuck Meertens)
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Users view

• GEON Portal
• Data/Model
• Registration
• Data Search /
• Discovery

Volume Data (ascii grid or netCDF)
Data
Data Contributor
GEON Query Data Preview
Thredds -Catalog -Digital Library Metadata
Raw Data
Processed Data
User Contributed Concepts
Data User
Data access

• UNAVCO GEON PoP
• Data/Metadata Server Node
• Data Conversion Webservice

Metadata Access
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Data Registration Architecture
OPeNDAP
Register OPeNDAP URL (URL, ADN, FGDC)
Register netCDF (URL, ADN, FGDC)
Register xidv (.xidv, ADN, FGDC)
Data Registration Service
User Machine
.nc
.nc
.xidv
OPeNDAP URL
OPeNDAP URL
THREDDS
Archival
adn
WCS
SRB
fgdc
THREDDS Data Server
HPSS
GEON Catalog
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Search, Access and Visualization
Webstart (.jnlp, ixidv)
User Machine
Download, OPeNDAP, WCS, JPG
Data Integration And Visualization Service
.jnlp(.xidv)
adn
fgdc
.nc
OPeNDAP URL
Tools Repository
GEON Catalog
OPeNDAP URL
THREDDS
wms
WCS
Tools
THREDDS Data Server
OPeNDAP URL
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Acknowledgement

• NSF Grant No. 0225673 (GEON)

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Questions?

• More Information
• amemon_at_sdsc.edu
• 1-858-822-0017
• www.geongrid.org