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Preparing NSDI-Compliant Metadata

Preparing NSDI-Compliant Metadata. Presented by Amy Budge and Stan Morain (Earth Data Analysis Center, UNM) Assisted by Rich Friedman, Gar Clarke, and Lance Tyson (Consultants). In Collaboration with the New Mexico Geographic Information Council April 16, 1998. Why Metadata?.

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Preparing NSDI-Compliant Metadata

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  1. Preparing NSDI-CompliantMetadata Presented by Amy Budge and Stan Morain (Earth Data Analysis Center, UNM) Assisted by Rich Friedman, Gar Clarke, and Lance Tyson (Consultants) In Collaboration with the New Mexico Geographic Information Council April 16, 1998

  2. Why Metadata? • Organize and Maintain Your Investment • Provide Information About Data • Provide Information to Aid Data Transfer • Enhances Locating Data Through Clearinghouses

  3. What Are Metadata? • Metadata describe the content, quality, condition, and other characteristics of data. • They help a person locate a data set and better understand the “pedigree” of that data set. • See the CSDGM Workbook (v. 1) for more details.

  4. MetadataThe Old Fashioned Way

  5. Traditional Metadata Grid Systems: Lat./Long., UTM, PLSS, T&R Control Points: Monuments Datums: NAD27, NGVD29, NAD83, NAVD88 Projections: Polyconic, Transverse Mercator Scale: 1:24,000, 1:62,500; 1:100,000 Resolution Accuracy

  6. Metadata from Topo Quad(lower left corner)

  7. Grid Systems NM State Plane Coordinate (feet) UTM Coordinate (meters) T & R Lat/Long Coordinates Tic for NAD83 Adjustment

  8. Control Points: Monuments Horizontal Control Vertical Control

  9. Control Points: GPS

  10. Datums

  11. Projections: Transverse Mercator

  12. Projections: Polyconic

  13. Scale

  14. Scale and Such Scale: The ratio of the distances on the map to their actual distances on the ground Resolution: Maps: The minimum mapping unit Imagery: The smallest detectable ground area (in aerial photography there are at least 27 factors that influence the smallest resolvable unit) Accuracy: With regard to map scale, at 1:24,000 the width of a pencil line is equivalent to ± 50 feet on the ground.

  15. MetadataThe Modern Approach

  16. The National Spatial Data Infrastructure(NSDI)

  17. Why NSDI ? • Rise of the Information Age • National Information Infrastructure • Executive Order 12906 • FGDC Structure • NSDI Strategy and Partners • Need for Standards • Need for Metadata

  18. NSDI Strategy • Promote data sharing among federal, state, and local governments, citizens, private organizations, and academia • Make accurate and timely geographic data accessible • Create distributed electronic networks of data producers and users (known as the National Geospatial Data Clearinghouse) • Develop standards for data documentation, collection, and exchange • Formulate procedures and promote partnerships

  19. Base Cartographic Data Bathymetric Cadastral Federal Geodetic Control Geologic Ground Transportation Vegetation Water Wetlands Soils Cultural & Demographic Data Intern’tl Boundaries & Sovereignty Standards Clearinghouse Earth Cover Historical Data Facilities SIMNRE Framework* Federal Geographic Data Committee Structure FGDC Members Department of Transportation Environmental Protection Agency Federal Emergency Mgmt Agency Library of Congress NASA National Archives & Records Admin. Tennessee Valley Authority Department of Agriculture Department of Commerce Department of Defense Department of Energy Dept of Housing & Urban Dev. Department of Interior Department of State Coordination Group

  20. NSDI Strategic Partners • The National States Geographic Information Council (NSGIC) • The National Association of Counties • The Open GIS Consortium • The University Consortium for Geographic Information Science (UCGIS) • The National League of Cities • FGDC • Cooperating State Councils (NMGIC)

  21. Status of Standards • FGDC Endorsed Standards • Standards under Review • Completed Public Review • Undergoing Public Review • Undergoing Standards Working Group Review • Standards in Draft • Proposed Standards

  22. FGDC Endorsed Standards • Content Standard for Digital Geospatial Metadata (v1) • Spatial Data Transfer Standard • Cadastral Data Content Standard • Classification of Wetlands & Deep Water Habitats • Vegetation Classification Standard • Soils Geographic Data Standard • SDTS, Part 6: Point Profile

  23. Standards Under Review • Public Review Completed • Geospatial Positioning Accuracy Standards • Part 1: Reporting Methodology • Part 2: Geodetic Control Networks • Part 3: National Spatial Data Accuracy Standard • Content Standards for Digital Orthoimagery • Content Standards for Digital Elevation Data • Content Standards for Digital Geospatial Data (version 2)

  24. Standards Under Review (cont.) • Undergoing Public Review • Utilities Data Content Standard • Facility ID Data Standard • Geologic Data Model • Digital Geologic Map Cartography • Governmental Unit Boundary Data Content Standard • Under Review by Standards WG • Encoding Standard for Geospatial Metadata • Geospatial Positioning Accuracy Standard (Part 4) • SDTS Raster Profile • CADD Profile for SDTS

  25. Standards Being Drafted • Address Content Standard • Metadata Profile for Cultural & Demographic Data • Geospatial Positioning Accuracy Standards (part 5) • Metadata Content Standard for Biological Resources Data • Environmental Hazards Geospatial Data Content Standard • Content Standard for Remote Sensing Swath Data

  26. Standards Being Proposed • Earth Cover Classification System • National Shoreline Data Standard

  27. Misconceptions AboutMetadata StandardsandClearinghouse Nodes

  28. METAFEAR: “We Don’t Need Metadata Standards” • It’s a needless government mandate • It was designed to be used by Federal agencies only • It forces my organization to adopt the creation of large scale, highly accurate data • It takes too long to develop and is too costly • I don’t share data, so it doesn’t apply to me

  29. Why Are Metadata Standards Important? • Managers… • Has your organization invested money in creating data? • Does your organization ever lose institutional knowledge? • Does anyone use your data to make decisions? • Technicians… • Have you invested significant time in creating data? • If you leave, will the data still be used? • Does anyone else use your data?

  30. Myths About Clearinghouse Nodes….orWhy Should I Care? • Clearinghouse nodes should only be developed by Federal and State agencies • They are not cost effective • It takes too much staff time to develop and maintain • We already have a system for sharing data • We don’t share data

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