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Planned Title: Review of Evaluation of Geospatial Search

Planned Title: Review of Evaluation of Geospatial Search. Allan Doyle. Geospatial One-Stop. Provides improved access to geospatial information. Required as part of U.S. Office of Management and Budget (OMB) sponsored initiative. Displays NASA projects/missions over $1 million.

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Planned Title: Review of Evaluation of Geospatial Search

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  1. Planned Title: Review of Evaluation of Geospatial Search Allan Doyle

  2. Geospatial One-Stop • Provides improved access to geospatial information. • Required as part of U.S. Office of Management and Budget (OMB) sponsored initiative. • Displays NASA projects/missions over $1 million. • GCMD created NASA portal of projects/missions. • GCMD developed project authoring tool for metadata creation. • By Winter 2004, projects and missions $500,000 and greater must be documented. • Future with Geospatial One-Stop.

  3. Geospatial One-Stop NASA’s Geospatial One-Stop

  4. Project Metadata Tool Allows for project metadata authoring.

  5. OMB Geospatial Framework Portal • Requested portal by the U.S. Office of Management and Budget (OMB). • Portal highlights geospatial investments consisting of framework layers within NASA and its Earth Science Information Partners (ESIP). • Framework layers include: cadastral, digital ortho imagery, elevation bathymetric, elevation terrestrial, government units, transportation, hydrography, and geodetic controls.

  6. NASA’s Geospatial Framework Portal

  7. Current functionality. Behind the search interface. DEMO of geospatial search. Providing a geospatial search interface in a metadata directory is critical in helping the user define a search on data. Investigating various geospatial search engines and software might be the best solution in developing a new geospatial search interface for the GCMD. Staff evaluated various geospatial search applications to determine pros and cons. Geospatial Aspirations of the GCMD Need for Enhanced Geospatial Search Geospatial Evaluations

  8. Goddard’s Geospatial Interoperability Office (GIO) promotes open standards that will enable users to access distributed geospatial data over the Internet. FGDC (Federal Geographic Data Committee) develops the National Spatial Data Infrastructure (NSDI) in coordination with local, state and tribal governments. GCMD actively participates in GIO and FGDC telecons. The Open GIS consortium leads the development of geoprocessing interoperability computing standards. Some important standards include: WMS (Web Map Service) WFS (Web Feature Service) WCS (Web Coverage Service) GML (Geography Markup Language) Geospatial Standards for the GCMD Geospatial standards are important in making disparate data available to the entire public.

  9. Proposal to Incorporate Polygon into DIF • Incorporate a polygon search into the DIF for better search capabilities of the GCMD. • Change will include adding a group for polygon coordinates of a location. • Polygon search will allow for more concise search compared to bounding box search. Bounding Box Search Polygon Search

  10. HTML and Java based clients that allows users to search, access, view and download geospatial data. Product is highly customizable which makes it a good solution for the GCMD. Application is OGC compliant. The product is provided at cost. HTML client similar to ESRI’s ArcIMS capable of displaying and querying geospatial data. Allows for OGC WMS capabilities. The product will need to be customized to the GCMD’s needs. The product is provided at cost. Software for future advanced GIS capabilities ESRI’s ArcIMS GenaWare

  11. Geospatial search application that uses Lucene and requires the use of Java applets in order to query the server. Spatial search uses search area technology, which is a location-based search technology. GCMD database is included in this DEMO version. Behind the scenes on how the spatial search works. Lucene Spatial Search

  12. GIS Data and Services in the GCMD • Access over 1600 metadata records describing GIS datasets. • Access shapefiles, Arc/Info export files, GeoTIFFs, Grass files-directly from the metadata. • Access web mapping services, statistical applications, and GIS software tools directly from the service metadata. • Future Web Map Server will allow access to GIS data over distributed sources directly from the metadata. • Future direction of GIS in the directory.

  13. Accessing GIS Data Through The GCMD Access and download GIS data from the Online_Resource into your GIS system.

  14. Accessing GIS Services Through The GCMD Access Web Map Server directly from the Related_URL.

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