National Digital Information Infrastructure and Preservation Program (NDIIPP)
NDIIPP Project Update NC Geospatial Data Archiving Project (NCGDAP) North Carolina State University...
-
Upload
emil-mathews -
Category
Documents
-
view
222 -
download
0
Transcript of NDIIPP Project Update NC Geospatial Data Archiving Project (NCGDAP) North Carolina State University...
NDIIPP Project Update
NC Geospatial Data Archiving Project (NCGDAP)
North Carolina State University LibrariesNorth Carolina Center for Geographic Information & Analysis
Presented by: Steve MorrisHead of Digital Library InitiativesNCSU Libraries
NDIIPP Partners Meeting January 17, 2007
• A “temporally-impaired” industry begins to discover time and the value of older data
• Major vendors and consulting firms begin to see temporal data management and analysis as a customer problem
• Opportunities abound to engage professional organizations, software vendors, data producers, standards organizations
Biggest Project Surprise:Emerging Industry Interest in Data Longevity
• The true counterpart to the old map is not the GIS dataset but rather the finished geographic product (map, chart, etc.)
• More than data—also classification, layering, symbolization, annotation, modeling …
• PDF documents are an increasingly common output format for finished products
Unexpected Activities:Handling PDF as a Geospatial Format
• County and city agencies beginning to digitize old maps and aerial imagery
• NCGDAP partners with NC Geologic Survey to resurrect geologic maps and old topo maps
• NCGDAP-georectified maps made available for download and put in the National Geologic Map Database in 2006
Unexpected Activities:Resurrecting Old Maps
Superceded USGS Topo Maps
Geologic Maps from Theses, Dissertations, and Reports
• Survey indicates that 20 state agencies are asking for local geodata
• “Contact fatigue” among local agencies – in response state/local/ federal data exchange partnerships emerge
• Leveraging more compelling business reasons to put the data in motion
Unexpected Activities:Partnering in ContentExchange Networks
Orthophoto“sneakernet”system
Started fall 2006 Transportation data exchange system
Funded starting fall 2006
Ongoing statewide data inventory
Started March 2006
Unexpected Activities:Engaging Standards Efforts
• Partnered with EDINA (UK) and NARA to approach the Open Geospatial Consortium (OGC) in 2005-2006
• Working Group charter approved by OGC Technical Committee plenary Dec. 2006
Unexpected Activities:Developing Ingest Workflow Tools
Developed a set of Python classes for threat scanning, copy, item formation, and ingest object creation
Developed a set of ArcGIS tools for format conversion
Repository ingest approach gets inspiration from ECHO DEPository hub-and-spoke model
• Huge new audience for geospatial content/services
• Massive crossover of mainstream IT to geospatial, spurring open source activities
• Rapid development of lightweight interoperability specifications
• “Good enough” approaches to data (formats, quality, standards)
Changes in the Domain:Mashups, Google Earth,Map APIs, and More
• Web mashup/AJAX interactions with existing systems spur creation of intermediate content layers: e.g., tiling and caching of web map services
• Ongoing development of a tiling services spec creates a new preservation opportunity
Changes in the Domain:New Information Ecosystem of Static, Tiled Map Data
• Mobile, LBS, and, social networking applications drive demand for place-based data
• Long-term cultural heritage value in non-overhead imagery: more descriptive of place and function
Changes in the Domain:More Place-based (versus spatial) Data
Oblique Imagery
Street View Images
DOT Videologs
Tax Dept. Photos