Transcript Implementing the GEOSS Architecture using open

Implementing the
GEOSS Architecture
using open standards
“Regional Decisions for Climate Change” Workshop, 21 September 2007
George Percivall1, Andrew Woolf2
(1) Open Geospatial Consortium, (2) STFC Rutherford Appleton Lab
[email protected], [email protected]
© 2007, Open Geospatial Consortium, Inc.
GEOSS
A Global, Coordinated, Comprehensive and
Sustained System of Earth Observing Systems
Address the need for timely, quality, long-term, global
information as a basis for sound decision making.
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
2
Requirements on GEOSS Contributed Systems
• GEOSS 10 Year Implementation
Plan
– Section 5.3 Architecture and
Interoperability
• GEOSS Implementation Plan
Reference Document
– Section 5, "Architecture of a
System of Systems"
1. Non-proprietary standards
2. Focus on interfaces
3. Interoperable formats, with
metadata and quality
4. Services-oriented architecture
5. Describing service interfaces
6. Avoid non-standard data
syntaxes
7. Register the semantics of
shared data
8. Standard Search Service
9. Spatial Data Infrastructures
10. Public, network-distributed
clearinghouse
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
3
Open Standards for Geospatial Interoperability
• Open Geospatial Consortium (OGC)
– Global, not-for-profit, international voluntary consensus standards
organization, >340 industry, government, research and university
member organizations
• ISO TC 211 – Geographic Information
– International, voluntary consensus standards body, members are
nations, liaison with numerous professional organizations
• OASIS – Organization for the Advancement of Structured
Information Standards
– Not-for-profit consortium that drives the development, convergence,
and adoption of open standards for the global information society
• …and others
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
4
Major OGC Specifications for GEOSS
Data access standards for web services
• Web Map Servers (WMS)
• Web Feature Servers (WFS)
• Web Coverage Servers (WCS)
As well as the:
Web Feature
Server
Web Coverage
Server
Web Map
Server
• Catalog Service for the (CSW)
OGC
• Web Map Context (WMC)
• Geography Markup Language (GML)
© 2007, Open Geospatial Consortium, Inc.
With OGC web services, a user can dynamically
access that data, directly from the authoritative data
source, using a variety of tools.
Helping the World to Communicate
Geographically
5
GEO Task AR-07-02
Architecture Implementation Pilot
• Lead incorporation of contributed components
consistent with the GEOSS Architecture…
• …using a GEOSS Web Portal and a GEOSS
Clearinghouse search facility
• …to access services through GEOSS
Interoperability Arrangements
• …support GEOSS Societal Benefit Areas
www.ogcnetwork.net/AIpilot
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
6
AI Pilot Approach
Jan 2007
Phase A
Concept
Development
April 2007
Phase B
CFP
Development
June 2007
Phase C
Kick-off
Activities
Sep 2007
Phase D
Execution
Activities
Derived from OGC Pilot Policy and Procedure
Nov 2007
Phase E
Persistent
Deployment
http://www.opengeospatial.org/ogc/policies/ippp
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
7
GEO AI Pilot Engineering Architecture
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
8
AI Pilot Working Groups
• Implementation
– Architecture
– GEO Web Portal
– Clearinghouse
– FedEO Pilot
• Scenarios
– Wildland Fires in Africa
– E&B in Africa
– E&B in Polar Regions
– Regional Climate Change
– Response to Oil Spill
– Response to Volcano
– Response to Hurricane
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
9
GEO Web Portal WG - Scope
• CFP called for portal candidates and for technical
architecture
• Three pilot-level portal candidates deployed to demonstrate
concepts
– Compusult
– ESA-FAO
– ESRI
• Report in early November 2007
– Comparison of candidates to CFP requirements
– Annexes describing features of each candidate portal
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
10
Portal Engineering Viewpoint
Geospatial Portal
 Viewer Clients
 Discovery Clients
 Management Clients
 Access Control
 Exposed Services
Portal
Services
Portrayal
Portrayal
Portrayal
Services
Services
Services
Internet
Data
Data
Data
Services
Services
Services
 Features
 Gazetteer
 Coverages
 Symbology Mgmt
 Maps
 Styling
 Coverages
 Map Context
Catalog
Catalog
Catalog
Services
Services
Services
 Data Discovery
 Service Discovery
 Catalog Update
 Query Languages
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
11
GEOSS metadata resources
• GEOSS Components and Services Registry
– Organizations register components that support services using
standards
• GEOSS Standards Registry
– for service types, data formats, schemas, and other standards
– Identification of “special arrangements” (non-standard practice)
• GEOSS Clearinghouse
–
–
–
–
Broker; not an authority
Search distribution point; not a repository
Relies on community catalogs and services for “holdings”
Maintains its own registry metadata for operations
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
12
Clearinghouse Wiring Diagram
GEOSS
Registry
Register Components and
Services
GEOSS
Clearinghouse
Fetch Service
Records
GEOSS
Portal
Query Clearinghouse
for holdings and
services
Query / Harvest
Catalogs
Registry
Client
Community
Catalogs
Harvest
Capabilities
Other
Clients
Consume remote service
© 2007, Open Geospatial Consortium, Inc.
Other
Community
Services
Helping the World to Communicate
Geographically
13
AI Pilot Videos
• Clearinghouse/
Registry
• GEO Web Portal
candidates
– Compusult
– ESA/FAO
– ESRI
• Scenarios
– Wildland Fires in Africa
– Ecosystems & Biodiversity
in Africa
– E&B in Polar Regions
– Regional Climate Change
– Response to Oil Spill
– Response to Volcano
– Response to Hurricane
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
14
Regional Climate Change
Intergovernmental Panel on Climate Change (IPCC)
•joint initiative of UNEP, WMO
•Special Report on Emissions Scenarios (SRES)
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
15
Regional Climate change scenario:
impact on Pikas regional distribution
Inferring the role of climate in the decline of the
American pika
GBIF IP3 Working Group
– GBIF Secretariat
– IEEE
– Italian National Research Council (CNRIMAA) & Univ. of Florence
– NCAR
– UNIDATA/UCAR
– University of Colorado
– University of Helsinki
– University of Ottawa
– University of Tokyo
– WMO
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
16
Regional Climate change scenario:
impact on Pikas regional distribution
To use climatological and biodiversity data to
run projection models
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
17
Regional Climate change scenario:
Water resource management
• Downscaling global IPCC climate change data for regional
impact analysis
• Calculation of drought severity indices
• Decision support for water resource management
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
18
Next Steps for AI Pilot
• Deliver videos for EO Summit, November in Cape
Town, ZA
– Deliver on CD and on-line
• Finalize Initial Operating Capability of current
phase of AI Pilot
• Deliver Reports: architecture, portal, etc.
• Identify potential topics for next phase of AI Pilot
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
19
What to watch for in the demonstrations
• How the components inter-operate
– Services are distributed; not a monolithic workstation application
– Services are interchangeable; plug & play using standard interfaces
– Adherence to GEOSS architecture requirements
• Why it matters to GEOSS users
–
–
–
–
Easy, quick access to data: dramatic reduction in effort and time
Agile, flexible workflow allowing evaluation of different approaches
Enables collaboration: services accessed by variety of users
Pragmatic decision support
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
20
Questions?
George Percivall
[email protected]
Open Geospatial Consortium, Inc
www.opengeospatial.org
© 2007, Open Geospatial Consortium, Inc.
Helping the World to Communicate
Geographically
21