Aerial Imagery & Ground Control Survey
Since the 1950s, aerial photography has been a valuable planning tool for the City of Lubbock. These historic data sets, compiled using traditional aerial photography methods, have been scanned and are available for download here.
In 2000, the City acquired digital orthophotography for the first time. This high resolution orthoimagery looks like a photograph, but distortions caused by the camera or topography have been removed, so that the image is spatially accurate. This allows layers of data from various sources to be used together with the orthophotos in the City’s Geographic Information System (GIS). Digital orthophotography was acquired in 2000, 2005 and 2010.
The acquisition of aerial photography and digital orthophotography require extensive ground control, which consists of points on the surface of the earth of known location (generally fixed within an established coordinate system) which is used to geo-reference aerial imagery. The ground control includes a variety of survey data of varying degrees of accuracy, including City of Lubbock and FEMA permanent monumentation. Other points were placed for and surveyed in connection with aerial photography or digital orthophotography acquisition, and are available for reference only.