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Pennsylvania Spatial Data Access (PASDA), [4] the official public geospatial data clearinghouse for the Commonwealth of Pennsylvania marked its 18th year in 2014. PASDA, which has grown from a small website offering 35 data sets in 1996 to the expansive user-centered data clearinghouse that it is today, has become a staple of the GIS community in Pennsylvania.
Unlike the NSDI Clearinghouse Network, GOS was built around a centralized metadata catalog database, with an architecture that links users to data providers through a Web-based geoportal. The user of GOS may employ a simple Web browser (thin client) or may interface directly with a GIS (thick client).
"The AZGEO Clearinghouse is an initiative of the Arizona Geographic Information Council. AZGEO is designed to provide GIS users with links to Internet map services, FGDC compliant metadata, and geospatial data downloads.
The FGDC coordinates the sharing of geographic data, maps, and online services through an online portal, geodata.gov, that searches metadata held within the NSDI Clearinghouse Network. [5] Spatial Data is considered a national capital asset.
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.
KML data can be reused outside of Wikipedia; it can be imported to geographic software, including GIS programs, and overlaid onto mapping services like Google Maps and Bing Maps. Because KML files can be generated by the same data that is used when making maps, the Maps Task Force is also responsible for maintenance of the KML data that is ...
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GIS data acquisition includes several methods for gathering spatial data into a GIS database, which can be grouped into three categories: primary data capture, the direct measurement phenomena in the field (e.g., remote sensing, the global positioning system); secondary data capture, the extraction of information from existing sources that are ...