Sanborn CEO Pankaj Desai has announced that the Pelham, New York-based geographic information system (GIS) and photogrammetry industry was chosen to acquire new aerial photography and to produce updated second-generation digital orthophoto quarter quads (DOQQs) for the state of Kansas.
One of the first states to have complete DOQQ coverage, Kansas recognized that its database of images made from 1990 and 1991 aerial photography needed to be updated. The state hired Sanborn to produce 5,865 new DOQQs to United States Geological Survey (USGS) and National Aerial Photography Program (NAPP) specifications.
Sanborn acquired new aerial photography beginning with the early year 2002 leaf-off period and will continue until full coverage is achieved. The state, which spans 82,282 square miles and ranks fifteenth in geographic size, required a minimum of half the photography to be acquired during the first flying season. In the spring of 2002, Sanborn successfully completed 90 percent of the photography to ensure continued delivery of DOQQs until next spring’s flying season. The photography task included the collection and quality control of approximately 12,000 exposures.
In lieu of collecting new control and executing a new aerial triangulation solution, Sanborn is using “second generation” technology, effectively eliminating the need for field control and aerial triangulation and resulting in a significant cost reduction.
To better report progress and manage the thousands of photographs, scanned images and DOQQs, Sanborn developed a website project tracking program. The system, called SanTrackÒ, allows the state to track project status daily via the web.