Difference between revisions of "Geodata Discovery Working Group"

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* GIS specific:
 
* GIS specific:
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** OGC's CSW 2.0 (work in progress...) (ISO/OGC's "ISO19115/ISO19119 Application Profile for CSW 2.0")  
+
** OGC's CSW 2.0 (work in progress...) (ISO/OGC's "ISO19115/ISO19119 Application Profile for CSW 2.0"). See a comparison between [http://www.gis.hsr.ch/wiki/OAI-PMH CSW and OAI-PMH]
 
** OGC's WFS (profile) serving (profiled) ISO 19115/19119 metadata format...?
 
** OGC's WFS (profile) serving (profiled) ISO 19115/19119 metadata format...?
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** and many more 'lean and mean' proposals on project level...
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** 'Lean and mean' proposals on project level...
 +
*** [[Simple Catalog Interface]]
 
* Related search protocols - possibly to be profiled or specialized by geoinformation requirements:
 
* Related search protocols - possibly to be profiled or specialized by geoinformation requirements:
 
** [http://www.openarchives.org/OAI/openarchivesprotocol.html Open Archives Initiative Protocol for Metadata Harvesting 2.0] (OAI-PMH)
 
** [http://www.openarchives.org/OAI/openarchivesprotocol.html Open Archives Initiative Protocol for Metadata Harvesting 2.0] (OAI-PMH)

Revision as of 13:32, 10 September 2006

This is a Working Group started by the Public Geospatial Data Committee.

While OSGeo can consider hosting sets of public geodata, (and for the purposes of offering maintained packages of high-quality data for education and demonstration, it probably will), we can compile a set of best practises and references to good prior art for building and maintaining collections of data and metadata.

Focus

  • Metadata for collections of geographic information.
  • Providing best practise and prototypes for geodata search facilities
  • Help with providing input into the OSGeo repository/services at http://osgeo.telascience.org/
  • Providing 'catalog'/discovery/search services as part of OSGeo activities in promoting access to public domain and open licensed bodies of data.

Participants

Existing (Meta) Search Projects and Related Efforts

Search Services:

  • (Meta) Data Catalogues / Data Repositories
    • Mapdex is "a global Index of 2,018 servers, serving 37,168 map services, containing over 400,000 GIS Layers, covering more than 4,000,000 columns!"
    • GeoTorrent hosts BitTorrents of shapefile/TIFF format data.
    • GeoNetwork "Find Interactive Maps, GIS datasets, Satellite Imagery and Related Applications"
    • DLESE Collection System offers a metadata repository and editor and supports OAI-PMH as data provider and harvester
    • Geo Meta Data Base (GMDB) - Metadata repository and editor based on ISO 19115/119 Metadata and Dublin Core with XML export and OAI-PMH data provider support (german only)
    • GDI Portals (country specific): US, UK, D, A, CH, LI, F, ...
  • (Meta) Search Engines:
    • geometa.info - search engine for geospatial services, data and documents combining structured and unstructured data (currently german only)
    • Google search using 'allinurl' parameter

Lists:

Public Datasets for Possible Mirroring or Distribution

Gazetteer Data

... basically placenames with coordinates ...

Vector data

  • VMAP0 - 1:1Mio, very generalised vector data for many features, around 70 layers (already at telascience)
  • World map for APRS, 1:1.1mio
  • GSHHS - world coastlines, different scales available
  • TIGER/Line (USA) - street and addressing data for the US
  • RNF (Canada) - street and addressing data for Canada
  • OpenStreetMap - data available through a HTTP based XML interface. They've also been getting requests for shapefile and GML output of their data.

Raster data

Wishlist for Public Datasets

Search Protocols

Hosting Plan

(placeholder for an initial hosting plan sketch)

See Also

Retrieved from "http://wiki.osgeo.org/w/index.php?title=Geodata_Discovery_Working_Group&oldid=7738"