From The Current:
Welcome to what [Jon] Jablonski, [director of the UCSB Library’s Interdisciplinary Research Collaboratory and shepherd of the library’s Aerial Photography Collection] calls “the Google Earth time machine.” A vast repository of 2.5 million aerial photos, the collection is the largest in the world. Spanning from 1924 to 2010, the stockpile literally has California covered; about 90 percent of the collection is dedicated to the state.
And much of it is available to the public with the click of a mouse. More than 400,000 of the collection’s photos can be accessed through FrameFinder, an interactive database that allows you to search through time as well as geography. Photos that are already digitized can be downloaded free; the rest can be scanned for $18 each.
More than 99 percent of the photos provide a vertical, or straight down; about 70,000 are oblique, bird’s eye views, Jablonski said. And, since many of the photos overlap, they can be seen in 3D through stereoscopic viewers or virtual reality headsets in the library’s Special Research Collections.
Direct to FrameFinder Database