CEOS WGISS Test Facility WTF

1
CEOS WGISS Test Facility (WTF)

• Yonsook Enloe
• NASA/SGT
• February 22, 2001
• Tokyo, Japan

2
CEOS Objectives

• To optimize the benefits of spaceborne Earth
  observations through cooperation of its Members
  in mission planning and in the development of
  compatible data products, formats, services,
  applications and policies
• To serve as a focal point for international
  coordination of space-related Earth observation
  activities
• To exchange policy and technical information to
  encourage complementarity and compatibility among
  spaceborne Earth observation systems and the data
  received from them.

3
WGISS in CEOS
WGISS is one of the CEOS working groups, which
deals with Global Earth Observation
data, Information Systems and Services
WGISS Working Group on Information
Systems and Services WGCV Working Group on
Calibration and Validation SIT Strategic
Implementation Team for IGOS
4
WGISS Goals

• Enable Earth observation data and information
  services to be more accessible and usable to data
  providers and data users world-wide through
  international co-ordination
• Enhance the complementarity, interoperability,
  and standardization of Earth observation data and
  information management and services
• Foster easier exchange of Earth observation data
  and information through networks and other means,
  to meet the requirements of users and data
  providers.

5
Who are involved?

• Governmental organizations that are international
  or national in nature and are responsible for a
  civil spaceborne Earth observation programs or
  are responsible for a significant ground segment
  activities
• Other satellite coordination groups, scientific
  or governmental bodies that are international in
  nature and currently have a significant
  programmatic activity that supports CEOS
  objectives

6
Selected WGISS Activities/Outputs

• International Directory Network
• CEOSNet
• Reference/Guidelines documents, Browse, Format,
  Catalog systems, Archive management, Auxiliary
  data reference, etc.
• Network performance measurements
• International Directory Network
• CINTEX - International Catalog System
• CEOS Information Infrastructure
• EO/GEO Workshops
• CEOS Information Locator System
• CD-ROM Resources in Earth Observation
• WGISS Test Facility

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CEOS/WGISS Components("WGISS Menu")
Directory (via IDN), Inventory, Ordering, Direct
access Directory, Inventory, Ordering,
Subscription Directory, Inventory, Ordering,
Direct access Directory, Direct access Directory,
Inventory, Ordering, Direct access, Format
Conversion, Subsetting, Overlaying, Animation,
Portrayal Portrayal, Overlaying Combination,
Algorithmic Transform, Mosaicking Reprojection
Coordinate Transformation Infrastructure
Services Infrastructure Services
8
WTF Background

• Stimulated by consideration of the USA / Japan
  initiative, the Global Observation Information
  Network (GOIN) and the subsequent Nakodo
  process with WGISS
• Initially developed at the WGISS Sub Group
  Meeting in London in April 2000
• Further developed at the WGISS meeting in
  Canberra in May 2000 where the proposal for a
  WGISS Test Environment was accepted in principle

9
WTF Objectives

• Provide an application-enabling capability to
  support science and operational projects.
  Provide access to not only data, but also
  information.
• Provide feedback to science data product
  designers
• Prototype future WGISS/Application systems
• Periodically spin off WTF prototypes to
  sustainable operational environments

10
WTF Characteristics

• An enabling infrastructure of interoperable EO
  and related services, tools and data system
• Driven by project scenarios
• Software component pieces (multiple clients,
  servers, middleware)
• Metadata and data for current and future demos
• Persistence 3-5 years
• Evolution over time
• Platform to support demos at key milestones

11
WTF Evolution

• Three to five year activity
• Initial focus on
• development of target vision/architecture for WTF
• pilot project to support GOFC/DMSG
• Use spiral development process to continue WTF
  evolution
• common services developed from pilot projects
  feed next generation WTF
• increasing level of service functionality and
  operational capability over time
• increasing level of service interoperability over
  time

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A Proposed WGISS Test EnvironmentVersion Sept
12, 2000
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Candidate Core Data Services
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Current
Order load
Large amounts of data from International Data
Centers
15
Soon
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WGISS Test FacilityTechnical Vision
Using the WGISS Products and Services,
new applications can be built while preserving a
project or community feel.
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WTF-GOFC Status

• April 2000 Concept of WTF-GOFC discussed in
  London WGISS Subgroup meeting
• April thru August ad-hoc WTF-GOFC team telecons
  to formulate WTF-GOFC concepts, iterative
  prototyping methodology, and plans for the Sept
  Bangkok EOS workshop
• August 2000 mini team met in Maryland and
  crafted a technical architectural vision
• September 2000 Bangkok EOS workshop had
  multiple GOFC prototype demos. WTF-GOFC approved
  as formal WGISS Subgroup task team.
• November 2000 Technical team meeting in
  Maryland. Identified interfaces in multiple GOFC
  prototypes. Agreements to open access through
  common interfaces to GOFC data
• February 2001 IWS 2001 meetings (GOFC Fire
  Workshop, Natural Resources Session, and WTF-GOFC
  meeting)

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WTF-GOFC Status ( cont)

• March 2001 Technical Team meeting in Frascati,
  Italy to perform technology integration across
  prototypes interfaces.
• May 2001 WGISS Subgroup meeting at EDC. Will
  show some demos and craft demo for the November
  2001 Kyoto CEOS Plenary
• November 2001 CEOS Plenary WTF-GOFC demo
• Working with OGC Vendor community
• Within the Interoperability Testbed
• Will provide GOFC requirements for future OGC
  specs through the EO SIG
• Vendor products are successfully being used by
  ESA, USGS, CCRS, MODLAND, TRFIC
• Will also have a small set of freeware software
  components for some interfaces for use by the
  WTF-GOFC participants
• Space Time Toolkit for WWW Map Server client
• DIAL for WWW Map Server
• SGT Catalog Server for both OGC data catalog and
  service catalog

19
WTF-GOFC Interfaces

• All adopted interface specifications are open and
  published. Many of the interfaces have vendor
  components and some have freeware components
• CEOS CIP for metadata catalog searching
• ESA MUIS Catalog plus other CEOS catalogs
• GEO for data metadata catalog searching
• Landsat7 at EDC
• CCRS holdings
• OpenGIS Consortium WWW Map Server for overlaying
  multiple maps (images) from multiple sources
• JRC World Fire Web AVHRR global map (3-4 days
  old) and the regional maps (1 day old)
• ESA ATSR Fire Atlas
• Landsat7 from EDC
• CCRS data
• TRFIC
• OpenGIS Consortium WWW Feature Server for
  identifying geographic points of features (fires,
  burned areas, etc.)
• ESA ATSR Fire Atlas
• MODIS Fires points
• CCRS data

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Summary/Observations

• Partnership of WGISS Information Technologists
  with GOFC scientists and operational groups,
  forming an integrated team, is a great way to
  develop science driven information systems.
• Iterative prototyping, developing capabilities in
  a spiral development, can provide systems that
  scientists and GOFC operational groups want.
• Use of open, published interfaces is preferable
  to using private, internal interfaces and is more
  conducive to interoperability.
• Use of standards can lead to use of commercial
  off the shelf vendor products.
• Working with standards groups to facilitate
  insertion of GOFC requirements can facilitate
  more vendor products being usable by the GOFC
  community.
• International cooperation in WTF-GOFC is
  resulting in better/faster results than
  independent development.