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EPA GIS Workgroup - Metadata
National Geospatial Overview: Metadata
EPA GIS Workgroup Meeting
Fall 2004Las Vegas, NV
EPA GIS Workgroup - MetadataFGDC and GOS Metadata
• Compliant metadata, richly informative
• Metadata Repositories
• GOS partnership
EPA GIS Workgroup - MetadataComplaint Metadata
• More than CSDGM Sections 1 and 7
• Tools to help– CSDGM Graphic Representation
• http://biology.usgs.gov/fgdc.metadata/version2/
– Metadata Parser aka “MP”• http://geology.usgs.gov/tools/metadata
/tools/doc/mp.html
• Web, batch, and desktop apps available
• Checks syntax/format not content
EPA GIS Workgroup - MetadataRichly informative metadata
• Metadata Quick Guide• http://www.fgdc.gov/metadata/education/
MetadataQuickQuide.pdf
EPA GIS Workgroup - MetadataMetadata Repositories
• Z39.50– Centralized
• National Park Service
– Centralized with program/agency identity
– Distributed
• ArcIMS Metadata Service• Web Accessible Folders
(WAF)• OAI Initiative (library)
The Urban EnvironmentEnvironmental Monitoring and Assessment Program EnviroFacts
EPA Metadata Sites
Estuaries Data Group
EPA GIS Workgroup - Metadata
• Register – Publish – Publisher – Geographic datasets– Images– Geoservices– Spatial solutions– Reference material– Events and activities– Geodata Partnership
Opportunities– Schedule NSDI node– Metadata harvesting
GOS Partnership
EPA GIS Workgroup - MetadataGOS Metadata Harvest
• How to contribute metadata: – Register existing metadata collection for
harvesting, specify frequency and time.ArcIMS Server, Isite/ Z39.50, WAF or OAI
– Upload metadata as CSDGM XML to the geodata.gov site
– Enter metadata into a form at geodata.gov where it will be stored and indexed
EPA GIS Workgroup - MetadataMetadata Harvest
A scheduled automated process for collecting new and updated metadata from a variety of metadata repositories • First retrieval- all metadata validated. Those
containing GOS required content posted to geodata.gov
• Previously harvested- only updated metadata retrieved
• Validation– Requires GOS minimum metadata– Uses FGDC metatags for validation
EPA GIS Workgroup - MetadataGOS Required Metadata Content
• Originator• Metadata Date• Title• Abstract• Purpose
• Time period• Progress• Maintenance• Bounding Box• Keywords
Information Derived from Registration*: Information Derived from Registration*: Contact Person or OrganizationContact Person or Organization
Address type, AddressAddress type, AddressPhone numberPhone numberEmailEmail
*When using online metadata form *When using online metadata form
EPA GIS Workgroup - MetadataGOS Metadata Validation-
Metadata Parser (MP)
• Error reports forwarded to agency – “Errors” to be remedied – “Warnings” acceptable
• Metadata with errors are not posted to geodata.gov – Once errors are corrected, schedule for harvest – Common errors:
• Currentness Reference- null (ground condition, publication date, ”free text”)
• date format- YYYYMMDD (YYYY minimum)
EPA GIS Workgroup - MetadataRegistering IMS or WMS
• Using agency metadata tool and repository: – Create metadata
describing service, enter address in “Online Linkage” and post to agency clearinghouse
• On geodata.gov– Login – Go to publish a new record – Enter map service address
EPA GIS Workgroup - MetadataContacts:
• Metadata- – [email protected]
• Clearinghouse/Portal – Doug Nebert [email protected]