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

kennyd.ratliff@ky.gov

Glen McAninchKentucky Department for Libraries and Archives

502-564-8300 ext. 242

glen.mcaninch@ky.gov