Public Content

Welcome to the Data Preservation and Archive Committee (DPAC) public page.

The DPAC's mission is to facilitate the preservation of all types of geospatial data, making recommendations for both physical and digital resources of all kinds.   Below are efforts to provide useful tools to the public and the ASPRS community for these goals.  Please review the DPAC charter for more information about the committee's purpose. 

Historical Aerial Collections/Archives

The committee has created a list of available historical archives - both unscanned film/prints as well as digital archives.   Click the image above or this link to view the list and to search the collection of known imagery sets the committee has collected.

Purge Alert

Do you have film, prints, diapositives, maps, or other historical aerial data that you need to dispose of?   If that is the case, please use the link below to email the ASPRS office and reference a purge alert and a description of the collection, what time frames and locations it covers, and when it is physically located.   ASPRS and the committee will attempt to find a home for your data!  

ASPRS Office

Below is a short list of organizations that may be willing to accept your data that can be contacted directly:

• Historical Aerials: https://www.historicaerials.com/contact
• Penn State University Libraries, University Park, Contact: Nathan Piekielek, Geospatial Services Librarian
• University of Florida, George A. Smathers Libraries, Map & Imagery Library, Contact:  Carol McAuliffe, Map Librarian
• University of California, Santa Barbara, Archives & Manuscripts, Contact: Tom Brittnacher
• Eastern Topographics, https://www.e-topo.com/, Contact Tyler Rigazio

       *Request to be added to this list

Example Scanning Service Providers

*Request to be added to this list

Resources and Documents

• DPAC Temperature and Relative Humidity Guidelines