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"A popular Government without popular information or the means of acquiring it, is but a Prologue to a Farce or a Tragedy or perhaps both. Knowledge will.

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Presentation on theme: ""A popular Government without popular information or the means of acquiring it, is but a Prologue to a Farce or a Tragedy or perhaps both. Knowledge will."— Presentation transcript:

1 "A popular Government without popular information or the means of acquiring it, is but a Prologue to a Farce or a Tragedy or perhaps both. Knowledge will forever govern ignorance, and a people who mean to be their own Governors, must arm themselves with the power knowledge gives." -- James Madison Access to Information & Geospatial Data Clearinghouses— The Pennsylvania Experience

2 FTP & Metadata Relational Database Development Map Services & Customization Tools In this presentation… Background on the evolution of the clearinghouse movement & the PA clearinghouse Past and current challenges and initiatives for Pennsylvania Other projects supported by free access to data

3 A number of astronauts, and then all of us who saw the photography from space, marveled at how much the Florida peninsula, meandering Mississippi, the islands of Britain, and the boot of Italy resembled the maps everyone had grown up with. We had taken it for granted that maps were faithful reflections of reality; but we were somehow amazed when reality turned out to be true to the maps. —John Noble Wilford, The Mapmakers  In the US, there is the expectation of free access to information—”The Right to Know”.  Historically, US government and most state government information is provided to the public.  Digital information, such as GIS data, is no exception.  However, sharing digital data is a complex process! Distributed computer networks, intricate programming languages, communication protocols, relational database architectures, user interfaces, and metadata standards must be established and implemented. Background on the clearinghouse movement…

4 The National Spatial Data Infrastructure—NSDI  The NSDI was established by executive order under President Clinton as a means to eliminate redundancy in data creation and streamline government operations and cooperation.  The NSDI was a gateway to distributed networks hosting spatial (GIS) data.  The NSDI enabled search and retrieval of information (using Z39.50 protocol) much like a library catalog shows what books and articles are available.  The Federal Geographic Data Committee (FGDC) was given the task of developing standards for data sharing for use in the NSDI. These included metadata standards and implementation of the NSDI by creating partnerships with spatial data providers such as state governments.  To participate in the NSDI, partners had to establish a spatial data clearinghouse that contained metadata based on FGDC standards and utilized the Z39.50 protocol to allow users to search from the national gateway. How do these things relate to the “Pennsylvania Experience”?

5 Pennsylvania Spatial Data Access (PASDA): The Geospatial Data Clearinghouse for the Commonwealth of Pennsylvania

6 What is PASDA? PASDA is the Commonwealth’s node on the NSDI, participates in GOS, the Geography Network, and the NBII Provides widespread sharing of Geospatial data Eliminates the creation of redundant data sets Serves as a resource for locating data throughout PA

7 PASDA Background  PASDA was initiated in 1996 as a partnership between Penn State University and the PA Department of Environmental Protection.  PASDA was established in the Penn State University Library and was a collaborative project of the library, the Geography Department, and the PSU Institutes of Energy and the Environment.  The program was originally coordinated by the PSU Maps Librarian who managed the data partnerships, metadata development, and data organization.  PASDA is currently funded by the Governor’s Office of Administration, Geospatial Technologies Office, and is under PSU Institutes of Energy and the Environment.  PASDA, which began by serving 35 datasets, currently provides access to 50,000 data files, numerous web GIS applications, and data customization tools. It is the largest state spatial data clearinghouse in the United States.

8 PASDA Services Our services include: Data Storage and Access Data & Metad ata PASDA Users Outreach PASDA info. GIS tutorials Metadata Planar Distance Units:meters Geodetic Model: Horizontal Datum Name:North American Datum of 1927 Ellipsoid Name:Clarke Planar Distance Units:meters Geodetic Model: Horizontal Datum Name:North American Datum of 1927 Ellipsoid Name:Clarke Planar Distance Units:meters Geodetic Model: Horizontal Datum Name:North American Datum of 1927 Ellipsoid Name:Clarke Planar Distance Units:meters Geodetic Model: Horizontal Datum Name:North American Datum of 1927 Ellipsoid Name:Clarke Planar Distance Units:meters Geodetic Model: Horizontal Datum Name:North American Datum of 1927 Ellipsoid Name:Clarke Training & Assistance

9 PASDA works with Partners on: -Data Acquisition -Distribution Issues -Documentation PASDA Provides: - Storage -Management -Access tools -Assistance Data Distribution Via the Web— Available for Anyone to Use How PASDA Works: PASDA is about Partnerships PASDA works with data providers to acquire data and develop data distribution plan and metadata. Data acquisition and maintaining partnerships is one of the most difficult and dynamic components of a clearinghouse. Typical advanced GIS user

10 Some Quick Questions…  Why is it so difficult to obtain data? Legal issues Territorial issues Questions about accuracy Other reasons?  Who do you think PASDA partners might be? State agencies such as PennDOT Local governments such as the City of Philadelphia Non-profit organizations such as the Western PA Conservancy Academic institutions like PSU  I mentioned metadata, what is it and why do you think it might be important?

11 Time Period of Content: Time Period Information: Single Date/Time: Calendar Date:1994 Currentness Reference:publication date Status: Progress:Complete Maintenance and Update Frequency:None planned Spatial Domain: Bounding Coordinates: West Bounding Coordinate: East Bounding Coordinate: North Bounding Coordinate: South Bounding Coordinate: Keywords: Theme: Theme Keyword Thesaurus:None Theme Keyword:RF3 alpha Hydrography River Reach streams stream network rivers hydrography ArcInfo navigation drainage Place: Place Keyword Thesaurus:Geographic Names Information System Place Keyword:New York NY New York English-Salmon Access Constraints:none Use Constraints:none Point of Contact: Contact Information: Contact Organization Primary: Contact Organization:U.S. Environmental Protection Agency Contact Person:Dan Parker Contact Address: Address Type:mailing and physical address Address:401 M Street SW (4503F) City:Washington State or Province:DC Postal Code:20460 Country:United States Contact Voice Telephone: Data Set Credit:McKay, Lucinda; Sue Hanson; Robert Horn; Richard Dulaney; Alan Cahoon; Mark Olsen; and Thomas Dewald, The U.S. EPA Reach File Version 3.0 Alpha Release (RF3-Alpha) Technical Reference. U.S. Environmental Protection Agency, Washington, DC Originator:U.S. Environmental Protection Agency/Office of Water/OST Basins Title:USEPA/OW River Reach File 3 (RF3) Alpha for CONUS, Hawaii, Puerto Rico, and the U.S. Virgin Islands Spatial Domain: Bounding Coordinates: West Bounding Coordinate: East Bounding Coordinate: Spatial Domain: Bounding Coordinates: West Bounding Coordinate: East Bounding Coordinate: Calendar Date:1994 Indirect Spatial Reference:English-Salmon - New York Direct Spatial Reference Method:Vector Description: Abstract :The U.S. Environmental Protection Agency's (EPA) Reach Files are a series of hydrographic databases of the surface waters of the continental United States … Description: Abstract :The U.S. Environmental Protection Agency's (EPA) Reach Files are a series of hydrographic databases of the surface waters of the continental United States … Planar Distance Units:meters Geodetic Model: Horizontal Datum Name:North American Datum of 1927 Ellipsoid Name:Clarke 1866 Planar Distance Units:meters Geodetic Model: Horizontal Datum Name:North American Datum of 1927 Ellipsoid Name:Clarke 1866 Metadata… Info about the data What is Metadata? Here is the official answer…

12 More Questions…  What types of data do you think would be available through a spatial data clearinghouse? Digital elevation models Digital Aerial Photos Digital Topo Maps Vector Data— Streams, roads, boundaries Tabular data such as Census data Temporal data such as weather data Others?

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14 Who uses PASDA? Government Agencies Emergency Response Teams Non-profits and Conservancies Consulting and Engineering Firms Academic Institutions Citizens K-12 Schools

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16 Some of our users and data partners…

17 PASDA Clearinghouse Applications and Utilities The PASDA Data Cart The PASDA Data Wizard Map Services Web GIS applications and viewers ArcIMS MapServices ArcIMS MapServices NSDI – GOS Harvesting NSDI – GOS Harvesting Google Earth Google Earth Clip & Reproject Clip & Reproject WMS MapServices WMS MapServices WebGIS Applications WebGIS Applications FTP.ZIP Files FTP.ZIP Files

18 Current Architecture… Central table drives the Website and integrates all services Website Central Table xml FTP.zip SDE WebGIS MapServices ArcIMS -- WMS --Google Earth NSDI -- Geospatial One-Stop Metadata Direct Download Clip, Reproject & Download

19 Data Access Tools & Utilities View & Interact with data on a map Clip, reproject & download Census 2000

20 Imagery Viewer & Download Tool

21 Zoom to a County, Place, Address, or Quad

22 Real Time Weather Data from the National Weather Service

23 Integrated with Google Earth

24 Why is GIS Data Sharing Important…

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26 After Katrina

27 Why is GIS Data Sharing Important Continued….

28 What Can be done with GIS Data?

29 What else can GIS Data be used for?

30 Questions?


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