Coordinating Local, State, and National Data Stores

The Carbon Project and the Arkansas Geographic Information Office (AGIO) are pleased to submit this 2010 NSDI Cooperative Agreement Program (CAP) Category 2 Interim Report for the Category 2, “Framework Data Exchange through Automated Geo-Synchronization” effort. Since kickoff in May 2010 the project developed and deployed a federated approach for exchanging local, state and national framework data using geo-synchronization services, easy-to-use shapefiles and common data models. In particular, the project has developed, tested and deployed a unique model for the NSDI that provides methods to ingest county transportation shapefile data into a geo-synchronization federation and synchronize county-level databases to state-level databases. To achieve this in a manner not disruptive to current processes, the system leverages common folder structures consisting of FTP shapefile updates from multiple Arkansas counties. The project team then developed a transformation capability to compare shapefiles to Web Feature Services (WFS) on ESRI ArcGIS Server, extract data changes and then transmit them to a GeoSynchronization Service (GSS) – and also output them as Shapefiles. The capability is based on a new change detection application called the The Carbon Project Change Validator (Figure 1). With this new capability our approach provides a bridge between current shapefile processes and a new generation of NSDI GeoSynchronization. It will also allow the state to advance data stewardship, and federal systems to automatically keep data sets up-to-date as needed. The solution is re-deployable to other sites through open APIs and free tools.

Final Report

Interim Report

Project Introduction Slides

Arkansas Geographic Information Office

The Carbon Project


Learon Dalby, GIS Program Manager

Jeff Harrison

Nuke Goldstein