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2. List of GIS data sources - Wikipedia

   en.wikipedia.org/wiki/List_of_GIS_data_sources

   This is a list of GIS data sources (including some geoportals) that provide information sets that can be used in geographic information systems (GIS) and spatial databases for purposes of geospatial analysis and cartographic mapping. This list categorizes the sources of interest.

3. Geoportal - Wikipedia

   en.wikipedia.org/wiki/Geoportal

   The U.S. National Spatial Data Infrastructure (NSDI), started in 1994 (see OMB Circular A-16), is considered the earliest geoportal concept.The U.S. Federal Geospatial Data Committee (FGDC) coordinated development of the Federal Geographic Data Clearinghouse (or NSDI Clearinghouse Network), the first large geoportal.

4. Geographic data and information - Wikipedia

   en.wikipedia.org/wiki/Geographic_data_and...

   There are also many different types of geodata, including vector files, raster files, geographic databases, web files, and multi-temporal data. Spatial data or spatial information is broader class of data whose geometry is relevant but it is not necessarily georeferenced, such as in computer-aided design (CAD), see geometric modeling.

5. Spatial data infrastructure - Wikipedia

   en.wikipedia.org/wiki/Spatial_data_infrastructure

   A spatial data infrastructure (SDI), also called geospatial data infrastructure, [1] is a data infrastructure implementing a framework of geographic data, metadata, users and tools that are interactively connected in order to use spatial data in an efficient and flexible way.

6. Geospatial metadata - Wikipedia

   en.wikipedia.org/wiki/Geospatial_metadata

   Geospatial metadata (also geographic metadata) is a type of metadata applicable to geographic data and information.Such objects may be stored in a geographic information system (GIS) or may simply be documents, data-sets, images or other objects, services, or related items that exist in some other native environment but whose features may be appropriate to describe in a (geographic) metadata ...

7. ArcSDE - Wikipedia

   en.wikipedia.org/wiki/ArcSDE

   ArcSDE (SDE for Spatial Database Engine) is a server-software sub-system (produced and marketed by Esri) that aims to enable the usage of Relational Database Management Systems for spatial data. The spatial data may then be used as part of a geodatabase.

8. Web Coverage Service - Wikipedia

   en.wikipedia.org/wiki/Web_Coverage_Service

   The Open Geospatial Consortium (OGC) Web Coverage Service (WCS) Interface Standard defines a web-based interface for the retrieval of coverages—that is, digital geospatial information representing space/time-varying phenomena. By providing direct access to underlying geospatial data rather than just static map images, WCS enables more ...

9. Open Geospatial Consortium - Wikipedia

   en.wikipedia.org/wiki/Open_Geospatial_Consortium

   The Open Geospatial Consortium (OGC) is an international voluntary consensus standards organization that develops and maintains international standards for geospatial content and location-based services, sensor web, Internet of Things, GIS data processing and data sharing. The OGC was incorporated as a not for profit in 1994.