GCMD Experiences in Building Earth Science Portals

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GCMD Experiences in Building Earth Science Portals

• Chris Gokey cgokey_at_gcmd.nasa.gov
• David Kendig dkendig_at_gcmd.nasa.gov

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Global Change Master Directory

• GCMD offers search and retrieval of Earth
  science data set
• information that describes data available from
  Federal and
• international agencies, universities,
  institutions, and other
• Earth science data providers.
• GCMD also offers search and retrieval of Earth
  science
• services information.
• Metadata authoring tools are available for
  describing data sets
• and services.

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Global Change Master Directory

• GCMD is a partner of the Committee on Earth
  Observation Satellites (CEOS) International
  Directory Network (IDN).
• GCMD also participates in the Earth Science
  Information Partner (ESIP) Federation Interactive
  Network for Discovery (FIND) to locate ESIP data
  sets.
• GCMD provides portals of science
  community-focused data set descriptions
  including
• A portal of model output dataset descriptions.
• Global Observation of Forest Cover (GOFC).
• Distributed Oceanographic Data System (DODS).
• Global Ocean Ecosystems Dynamic Program (GLOBEC).
• Geographic Information for Sustainable
  Development (GISD).

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Global Change Master Directory

• The GCMD provides access to
• Over 12,000 Earth science dataset and services
  descriptions from over 1600 data providers
  worldwide, including
• Over 3000 dataset descriptions from NASA and
• Earth Science Information Partners (ESIP) data
  providers
• Over 3200 dataset descripitons from Federal
  agency data providers, including

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GCMD and the Committee on Earth Observation
Satellites International Directory Network
(IDN)
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Content by Contributing Agency
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Global Change Master Directory

• Several search features are offered from the GCMD
  home page including
• Free-text search,
• GCMD science parameter search,
• Data Center, Location, Instruments,
• Platforms or Project search option.
• http//gcmd.nasa.gov or
• http//globalchange.nasa.gov

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Content by Science Topic
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Local Database Agent
Network
Local Database Agent
New Content
Schedule Table
Announcer
LDA Server
Scheduler
Trigger Table
Local DB
GCMD Node
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GCMD Portals to Community-focused Data
Global Change Master Directory
DODS
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Demo
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Metadata Portal Types

• Stand-alone web site
• All input original
• Web site design original
• Distributed Portal
• Input original / Output collective
• Web site design original or duplicative
• Custom Subset Portal
• Input collective / Output selective
• Custom design
• Mirror Portal
• Duplicates entire contents of primary web site
• Customized or duplicated design

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Portal Decision Considerations

• Can you leverage existing functionality?
• Do you need different or addition functionality?
• Do you need control over content?
• Is funding sufficient to do the work?
• Do you require a unique design or unique subset
  to meet a specific goal?
• Needs to server local community?