- SPECIAL REPORTS
- THE MAGAZINE
Midwest Aerial owns and operates three Z/I Imaging DMC II systems. To satisfy the tight acquisition windows for each of the three projects, the firm deployed two aircraft for simultaneous collections in each state.
“We were selected to participate in each of these important statewide mapping programs because we fly DMC II cameras and our staff is experienced getting complex, large-area projects done right,” said Ken Scruggs, Midwest Aerial president and founder. “The image clarity, geometric accuracy and color resolution have made the DMC II the digital imaging system of choice for photogrammetric mapping projects, both big and small.”
For the North Carolina Orthoimagery Project, Midwest Aerial acquired four-band imagery at 15-centimeter GSD covering 3,600 square miles (9,400 sq. km.) of North Carolina’s Piedmont Plateau. Two aircraft collected an average of 1,000 square miles (2,500 sq. km.) per day on that project.
In the Maryland project, Midwest Aerial acquired imagery over 1,900 square miles (4,900 sq. km.) of the Chesapeake Bay’s Eastern Shore under sub-contract to AXIS GeoSpatial of Easton, Md. Midwest Aerial’s two airplanes completed the job in two days, capturing 15-centimeter GSD natural color imagery from an altitude of 6,300 feet (1,920 meters) above ground level. For the Virginia project, two Midwest Aerial planes collected 30-centimeter GSD imagery for 4,800 square miles (12,500 sq. km.) as a subcontractor to Sanborn of Colorado Springs.
“In addition to our DMC II cameras, our ability to deploy aircraft on short notice was the other major consideration in our selection for the projects in Maryland and Virginia,” says Scruggs. “We had less than a week’s notice for both jobs.”
The Z/I Imaging DMC II-140 is a large-format, square-frame camera designed specifically as an aerial photogrammetric sensor. It collects four-band multispectral (Red, Green, Blue, Near Infrared) and panchromatic imagery at low altitude for large-scale survey applications and at higher altitudes for small-scale regional projects.