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Advancements in OGC Standards for Web-Based Mapping and Geospatial Interoperability

This paper, presented by Ryosuke Nakamura from AIST, Japan, delves into the evolution of mapping from traditional paper formats to modern web-based systems. Highlighting significant satellite imagery of Hanoi and the potential applications of web-based mapping—including disaster mitigation, environmental monitoring, and urbanization—the discussion emphasizes the importance of geospatial interoperability through OGC (Open Geospatial Consortium) standards. Key topics include catalog services, geography markup language, and various web services that facilitate the integration of geospatial data across platforms.

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Advancements in OGC Standards for Web-Based Mapping and Geospatial Interoperability

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  1. Introduction of OGC Standard Ryosuke NAKAMURA AIST, Japan

  2. From paper maps to Web-based maps

  3. Hanoi on 2000-11-13 observed by ASTER

  4. Hanoi in infrared

  5. 2002-08-31

  6. 2006-05-06

  7. 2009-09-19

  8. Possible targets of Web-based Mapping using satellite imagery • Disaster mitigation • Global and national geospatial information infrastructures • Environment monitoring • Urbanization, heat island,,,,,.etc Map/Images need to have the same coverage, size and Projection for overlay and GIS-based analysis

  9. Geospatial Interoperability using OGC Web Services • Interoperability • Freedom to combine and integrate components of an information system • Open Standards • Exchangeable across different application/platforms • Open Geospatial Consortium (OGC) • Consortium of GIS vendors, government agencies, academic institutions and private entities • Proposing standard and specifications for geospatial Interoperability (data format, protcol, definition of map projection, metadata ,,,etc)

  10. Specifications • Catalog Service/WEB (CSW) • Geography Markup Language 3.0 (GML) • Web Map Service (WMS) • Web Feature Service (WFS) • Web Coverage Service (WCS) • Style Layer Descriptor 1.0 (SLD)

  11. http://geodata1.geogrid.org/mapserv/g2000k/g2000ke?service=WMS&REQUEST=GetCapabilitieshttp://geodata1.geogrid.org/mapserv/g2000k/g2000ke?service=WMS&REQUEST=GetCapabilities • <?xml version='1.0' encoding="EUC-JP" standalone="no" ?> • ,,,, • <!DOCTYPE WMT_MS_Capabilities SYSTEM http://schemas.opengis.net/wms/1.1.1/WMS_MS_Capabilities.dtd • <Service> • <Name>OGC:WMS</Name> • <Title>1/2,000,000 geological map asia (English)</Title> • <OnlineResource xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="http://geodata1.geogrid.org/mapserv/g2000k/g2000ke?"/> • </Service> • ,,, • <Layer> • <Name>g2000ke</Name> • <Title>1/2,000,000 geological map asia (English)</Title> • <SRS>esri:54004</SRS> • <SRS>epsg:4326</SRS> • <SRS>epsg:4612</SRS> • <SRS>epsg:4301</SRS> • <LatLonBoundingBox minx="92.1903" miny="-16.6333" maxx="155.955" maxy="47.6128" /> • <BoundingBox SRS="EPSG:4612" • minx="92.1903" miny="-16.6333" maxx="155.955" maxy="47.6128" /> • <Layer queryable=“0” opaque=“0” cascaded=“0”> • ,,,,, • </Capability> • </WMT_MS_Capabilities> WMS - getCapabilties

  12. WMS - getMap http://geodata1.geogrid.org/mapserv/g2000k/g2000ke?service=WMS&VERSION=1.1.1&REQUEST=GetMap&layers=g2000ke&srs=EPSG4326&width=1000&height=500&bbox=90,20,150,50&format=image/jpeg

  13. http://geodata1.geogrid.org/mapserv/g2000k/g2000ke?service=WMS&VERSION=1.1.1&REQUEST=GetMap&layers=g2000ke&srs=EPSG4326&width=1000&height=1000&bbox=90,10,110,30&format=image/jpeghttp://geodata1.geogrid.org/mapserv/g2000k/g2000ke?service=WMS&VERSION=1.1.1&REQUEST=GetMap&layers=g2000ke&srs=EPSG4326&width=1000&height=1000&bbox=90,10,110,30&format=image/jpeg

  14. An example of the overlay based on WMS

  15. OGC and FOSS4G • Free and Open Source Software (FOSS) for Geoinformatics (FOSS4G) Alternative approach for software development • Many implementations are available and active communitiy • MapServer (WMS, WFS, WCS) • 52 North (SOS) • GeoServer (WMS,WFS,WCS) • GLASS, pyWPS (WPS) • OpenLayers (UI) ,,,,,,etc

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