Aerial Data

Aerial Data Service's map compilers use Zeiss first-order analytical stereoplotters equipped with superimposition to collect digital planimetric, digital elevation model (DEM), and digital terrain model (DTM) data. The analytical stereoplotters are directly interfaced with interactive graphic systems used for precise map digitizing.

Superimposition allows the map compilers to simultaneously view a photographic model of the ground and the geospatial data as the map is compiled. As a quality control measure, superimposition increases the efficiency of map compilation and reduces feature omissions.

Each project is designed according to client specifications to ensure that the desired accuracies are achieved. ADS's mapping projects adhere to applicable published standards.

ADS uses softcopy analytical stereoplotters for DEM data collection and orthophoto development. This technology allows aerial photographic raster images and map data to be viewed three-dimensionally on a computer.

After map compilation, cartographic editing is performed. Contours are determined from DTM data, labels are added, and final tiles are extracted and plotted. For Geographical Information System (GIS) and Automated Mapping/Facilities Management (AM/FM) base maps, our editors review the data to ensure that it is ready for system implementation. Maps and DTM data are delivered in all popular software formats, including AutoCAD®, MicroStation® and Arc/Info®.