Embed Size (px)
Citation preview
Preservation of Geospatial Data
Kenny Ratliff, DGI and
Glen McAninch, KDLAApril 22, 2008
Digital Technology Summit Lexington, Kentucky
Problem Statement
• Most current data mindset– What did it look like yesterday? 5 years ago?
• Burden on individual agencies to capture– Are they aware? Being done?
• Storage and access of captured data– Where? Backed-up for business continuity?
DGI MissionFacilitate statewide electronic geographic data sharing and its
application for streamlined decision-making, greater efficiency, public protection, and economic vitality.
Kentucky Geography Network
Contains 373 layers for use in GIS
Uses 29 layers from the KyGeoNet
Uses 152 layers from DGI holdings
Vector Information
• Polygons– Cadastral (tax parcels)– Zoning– County bounds– Voting precincts
• Points– Schools– Hospitals– Shelters
• Lines– Street centerlines– Rivers / streams– Water / wastewater systems
• Many others…
Value in Older Data: Solving Business Problems
Suburban Development examples
Land use change analysis
Real estate trends analysis
Site location analysis
Disaster response
Resolution of legal challenges Impervious surface maps
Raster Data (KLC)
National Digital Information and Preservation Program
(NDIPP)
Expectations – Scope of work
– Identify archival GIS layers / applications– Examine approach of other states– Install hardware and software– Identify archival meta data including retention
for input into clearinghouses– Capture selected layers for archiving– Test methods for sharing of data among the
states– Write a report on findings and experiences– Work with Kentucky and national professional
organizations
Records Retention Schedule
• The system is scheduled as a permanent record and all image files are saved permanently. Copies come to the archive even when they are still in the system.
• Selected vector files which are determined archival are saved via periodic capture and transfer to archive server as part of regular system updates
• Vector data from each contributing agency is evaluated in the context of all agency records.
Repository Goal• Capture at-risk data• Explore technical and organizational
challenges
Project End Goal• Data Producers: Improved temporal data
management practices
• Archives: More efficient means of acquiring and preserving data
Stewardship: Repository as Catalyst for Conversation
Data Grid Technology for Sharing
• Manage data residing in heterogeneous storage systems– Storage repository virtualization– Support new storage systems while moving data from
old storage systems
• Manage data distributed across multiple storage systems– Data virtualization– Replication of data for fault tolerance and disaster
recovery
• Data grids manage information about files as well as the storage
Contact Information
Kenny RatliffDivision of Geographic Information
502-564-9849
Glen McAninchKentucky Department for Libraries and Archives
502-564-8300 ext. 242
