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Pennsylvania Spatial Data Access (PASDA) is Pennsylvania's official public access geospatial information clearinghouse.〔http://www.directionsmag.com/entry/the-road-taken-the-evolution-of-gis-data-clearinghouses-from-ftp-to-map-ser/123378〕 PASDA serves as Pennsylvania's node on the National Spatial Data Infrastructure (NSDI) PASDA is a cooperative effort of the Pennsylvania Geospatial Technologies Office of the Office of Information Technology (http://www.portal.state.pa.us/portal/server.pt?open=512&objID=402&mode=2) and the Pennsylvania State University Institutes of Energy and the Environment(PSIEE--http://www.psiee.psu.edu).〔http://www.directionsmag.com/entry/the-road-taken-the-evolution-of-gis-data-clearinghouses-from-ftp-to-map-ser/123378〕 ==Early history== Pennsylvania Spatial Data Access (PASDA—http://www.pasda.psu.edu), 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. PASDA provides access to thousands of data files, terabytes of data, and hundreds of Internet Map Services, Google Earth KML files, metadata, mapping applications, and other information like guides and tutorials.〔http://www.pasda.psu.edu/about/publications/PASDAFinal201314.pdf〕 PASDA was developed by the Pennsylvania State University as a service to the citizens, governments, and businesses of the Commonwealth. PASDA is a cooperative project of the Governor's Office of Administration, Office for Information Technology, Geospatial Technologies Office and Penn State Institutes for Energy and the Environment of the Pennsylvania State University. Funding is provided by the Pennsylvania Office for Information Technology, Geospatial Technologies Office. The Pennsylvania State University provides additional substantial support to PASDA for system administration, database technologies administration, and infrastructure. The High Performance Computing Center at Penn State is also providing significant resources and support for PASDA.〔http://www.pasda.psu.edu/about/publications/PASDAFinal201314.pdf〕 PASDA is housed at Penn State Institutes of Energy and the Environment (PSIEE). The purpose of Pennsylvania Spatial Data Access (PASDA) is to serve as a comprehensive geospatial data digital library by providing free, universal access to geospatial data and information by, for, and about the Commonwealth of Pennsylvania. PASDA has served for almost 20 years as the Commonwealth's node on the National Spatial Data Infrastructure (NSDI), Geospatial One Stop, and the National Biological Information Infrastructure.〔http://www.pasda.psu.edu/about/publications/PASDAFinal201314.pdf〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Pennsylvania Spatial Data Access」の詳細全文を読む スポンサード リンク
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